Air handlings units catalogue

AIR HANDLING UNITS CATALOGUE

Uniclass

CI/SfB(57.6)

EPICFOR THE COMPLETE VENTILATION SOLUTION

OUR COMPANY

INTRODUCTION 4

• NUAIRE’S PEDIGREE

• PROVEN TRACK RECORD

• INNOVATION

• OPTIONAL ON-SITE SERVICES

• ECOSMART CONTROLS

SPECIFICATION 17

• A GUIDE TO COMMERCIAL BUILDING SERVICES LEGISLATION

• INSTALLATION GUIDELINES

• USEFUL INFORMATION

PRODUCT GUIDE 30

• COMPLETE SOLUTION FOR VENTILATION

• INDEX OF PRODUCTS

029 2085 82002

OUR PRODUCTS

SECTION PAGE

• OPUSXBOX 34

• XBOXER HEAT EXCHANGE 40

• XBOXER 55 56

• XBOXER HEAT EXCHANGE TWIN FANS 64

• ECOSMART SQURBO 90

• ECOSMART BOXER 94

• UNDERBENCH CLASSROOM UNIT 112

• XBOXER THERMAL WHEEL 114

• XBOXER RUN AROUND COIL 120

• XBOXER CUSTOM AIR HANDLING UNITS 140

• BOXER MODULAR SUPPLY 150

3nuaire.co.uk

029 2085 82004

A SMARTER, MORE

ECO-FRIENDLY APPROACH

TO VENTILATION

Research tells us that over 80% of

the life cycle cost of a ventilation

system comes from energy usage. As

the leading energy-saving ventilation

controls technology system on the

market today, Ecosmart uses less

electricity and operates only when

needed, dramatically reducing

energy costs year on year and over

the system’s natural life.

FRESH APPROACH

Like the fresh, clean environments its

products create, Nuaire’s fresh

approach to ventilation has brought

its own rewards. Business is growing,

with innovative new products being

developed all the time, setting new

standards in energy efficiency and

reduced carbon emissions.

CUSTOM DESIGN

The latest manufacturing technology

and accredited test facilities enable

us to take a flexible approach to the

design and build of the right fan

solution. More importantly we

consider the interface with the

client’s equipment and processes,

which can usually lead to a

reduction in assembly costs.

COMMITMENT

TO QUALITY

At Nuaire, quality control and a

commitment to constant

improvement are ingrained in

everything we do. We were not only

the first fan manufacturer to achieve

the quality standard ISO9001 but

we are also currently approved to

BS EN ISO 9000:2000, the very

latest quality standard.

NUAIRE. THE AIR OF TRUE INNOVATORS

SETTING NEW STANDARDS

There’s more to Nuaire than technological innovations. Nuaire’s people make these innovations possible. The company has

over 400 committed and talented staff at its UK headquarters and its French subsidiary, with technical sales engineers in

every major city in Britain, as well as dedicated partners across the globe. Nuaire’s staff include industry-leading experts

who are constantly setting new standards by developing innovative products at the company’s research and development

unit, the largest and most advanced in the UK. The passion of our people and their commitment to excellence has produced

a large, loyal and growing customer base. Professional bodies have also recognised the company’s landmark achievements

with numerous industry awards.

Nuaire is a world leader in the innovation, development and

manufacture of fans and ventilation systems. Despite its name, the

company isn’t new. In fact, Nuaire’s innovative approach has its origins

in the 1930s, while its tradition of excellence in ventilation goes back to

1963. Since then, the Nuaire name has been at the forefront of

innovation in the industry, so much so that today the company is

recognised worldwide for its expertise, commitment to innovation and

the outstanding quality of its products and customer service.

OVERVIEW OF NUAIRE’S HISTORY AND PEDIGREE

5nuaire.co.uk

We don’t believe in focussing solely on the ventilation system. A key aspect of Nuaire’s approach consists of the way we

interface with our customer’s equipment and manufacturing process leading, in the majority of cases, to a significant

reduction in assembly costs. With this approach we achieve great results and the satisfaction of our customers. The

following examples demonstrate not just how we approach things but some of the results we achieve.

PUTTING CUSTOM SOLUTIONS INTO CIRCULATION: THE MOST FLEXIBLE AHU RANGE ON THE MARKET TODAY

The XBOXER range offers a solution for every conceivable application and environment, whether inside a plant room or

on a roof. There are XBOXER solutions for applications in industrial premises and public buildings as well as domestic

dwellings, schools, offices, shops and hospitals.

SWISS RE, LONDON

Ventilation: Ecosmart Boxer

The iconic Swiss Re was designed to provide an energy efficient alternative to

other office buildings. The steel and glass design maximises daylight penetration

and minimises the requirement for artificial light. Light level and movement

sensors prevent unnecessary lighting helping to reduce energy consumption and

cooling loads. Ecosmart Boxer provided the required high levels of ventilation

whilst being one of the most energy efficient AHUs on the market.

CASE STUDIES

MANCHESTER SCHOOLS

Ventilation: XBOXER heat recovery

XBOXER 55 high efficiency plate

heat exchangers were installed below

classroom ceilings to provide

enhanced air quality and improve

energy efficiency within the school.

The units required a high quality

paint finish, low depth, high

performance with tested & approved

noise levels to meet client and

relevant regulations.

HOLIDAY INN, BIRMINGHAM

INTERNATIONAL AIRPORT

Ventilation: XBOXER thermal wheel

The 141 room hotel at Birmingham

Airport recently underwent a multi-

million pound refurbishment

programme. Nuaire’s XBOXER

thermal wheel size T6 was installed

on the roof top. The inclusion of the

unit in the hotel’s mechanical design

not only provides year round savings

in heating and cooling costs, it also

helps to increase the indoor air quality.

At Nuaire, we pride ourselves on working closely with our customer at

every stage of the development process, while the latest manufacturing

technology and accredited test facilities enable us to offer a flexible

approach to the design and build of the right fan solution.

INTERFACING WITH THE CUSTOMER’S EQUIPMENT, INTERFACING WITH THE CUSTOMER

PROVEN TRACK RECORD COMPLETE SOLUTIONS

029 2085 82006

MORE THAN JUST FANS

INNOVATION IN THE AIR

Nuaire has built a loyal customer base over the years and not just

because of the quality of its fans. The fact is, the company also has a long

and successful history in heat recovery and has been developing and

manufacturing AHUs for many years. In order to ensure quality control

and optimum energy conservation, the company manufactures the

majority of the components itself.

Contemporary AHUs are called upon to meet all conceivable air handling requirements and standards throughout Europe. Every

AHU in the Nuaire range meets the requirements laid down by the classification in the CEN standard and is manufactured

in a factory that has been certified for its quality control (ISO 9001) and environmental policy (ISO 14001).

PUTTING OUR QUALITIES TO THE TEST

The company's rigorous product testing regime is unrivalled in the industry,

which is hardly surprising given multi-million pound test facilities considered to

be amongst the most modern and comprehensive in the world. It’s all designed

to ensure that our customers benefit from the best ventilation solutions on the

market today. The facilities have been designed to meet the latest industry

standards and carry the appropriate approvals including those from the British

Standards Institute and the Air Movement and Controls Association.

The two reverberant chambers at the facility (Type D and Type A configurations)

test for both aerodynamic and acoustic performance, allowing Nuaire to self-

certify products, including those for the French market, as well as ensuring that

products meet the high standards consistent with Nuaire’s reputation.

No two AHUs are the same whether you need to satisfy the most budget

demanding contract or the most sophisticated, energy conscious, bespoke

project the XBOXER range can fulfil your requirements. Nuaire’s experienced

team can provide technical information and support for any project that

requires an AHU.

The team utilise the latest parametric quoting software and can provide

quick and accurate estimates. The software also reduces time during

specification changes.

The team comprise of specialist engineers, project managers and technical

estimators all highly trained to ensure that your AHU project runs as

smoothly as possible from enquiry through to installation.

SIMPLE, PRECISE COMMISSIONING

As recommended in Part L, Ecosmart enables the system

to be accurately commissioned via an integrated speed

control, minimum and maximum speeds easily adjusted

via commissioning panel integral to the control.

QUIETER SYSTEMS

With Ecosmart your system is only at maximum design

duty when absolutely necessary. The noise levels within

your systems are lower because the fans or air handling

units are rarely at full speed.

IMPROVED LIFECYCLE

Ecosmart enables the fan or air handling unit to be run at

lower speeds. This reduces the maximum load and wear

and therefore increases the overall working life of the units.

DEMAND VENTILATION

Only ventilates the area when you want it to - why fully

ventilate a room when it’s not occupied - maximum

savings possible achieved.

HEALTHY ATMOSPHERE

Ecosmart has a trickle function as standard which when

activated, via a simple switch, enables you to set a

background ventilation rate, keeping the rooms fresh when

unoccupied, whilst still saving energy. System will boost or

ramp to maximum design duty when triggered by an

Ecosmart or other external device.

Ecosmart has a 5 year warranty.

OTHER CONTROL OPTIONS AVAILABLE

Refer to Commercial catalogue.

029 2085 82008

ECOSMART ENERGY SAVING CONTROLS

Nuaire’s Ecosmart energy saving ventilation control is the most flexible

system on the market with full BMS interface. All controls are pre-

assembled, configured and installed directly into the fan or air handling

unit, this includes 3-port motorised valves and actuators, pipework, off

coil thermostats and sensors, frost protection, etc. Site time is kept to a

minimum, and quality and efficiency is maintained.

Touch screen user control. ES-PIR2 sensor. ES-CO2 RM sensor.

Ecosmart plug-in system andcontrol example.

9nuaire.co.uk

ECOSMART INCLUDES A WIDE RANGE OF OPTIONS

ES-PIR2 (Passive Infra-Red)Detects movement and activates system.Incorporates a system status LED, overrun timerand timer adjustment.

ES-LCDTouch screen user control in white incorporating time clock facility. This can control the function ofthe fan by manual setting or using a set of timed programs.

ES-LCDM Touch screen user control in metal incorporating time clock facility. This can control the function ofthe fan by manual setting or using a set of timed programs.

ES-HUMIDISTAT2Activates the system when the RH level is aboveset point. Incorporates two system status LEDs (Green = OK, Red = Failure) and RH set point level adjustment.

ES-THERMOSTAT2Activates the system when the temperature isabove set point. Incorporates two system statusLEDs (Green = OK, Red = Failure) and temperatureset point level adjustment.

ES-AVI2When fan failure occurs the AVI will flash awarning. Supplied with pre-plugged 10m length ofcommunication cable.

ES-CO2RM & ES-CO2RMPPSurface mounted room carbon dioxide (CO2)sensors which incorporate a temperature sensor.RM = SELV option, RMPP is complete with SELV acpower supply.

ES-HTCSIGSignal conditioning circuit for humidity,temperature and CO2 sensors.

ES-TEMP2 Temperature SensorModulate fan speed based on room temperature. Incorporates two system status LEDs (Green = OK,Red = Failure) and temperature set point level adjustment.

ES-RH2 Relative Humidity SensorModulate fan speed based on RH level. Incorporatestwo system status LEDs (Green = OK, Red = Failure)and RH set point level adjustment.

ES-UCF Manual user control Manual ‘on’ and ‘off’ system user/speed control. Incorporates two system status LEDs (Green = OK, Red = Failure).

ES-CI Semi-automatic user controlFan, heating & cooling selected by external volt free switch, speed selected by 0-10V signal.

ES-JB Junction boxDesigned to be compatible with Ecosmart Systemthis unit is supplied with a pre-plugged 10 metrelength of communications cable and has 8 furtherports.

ES-CO2 SensorDuct mounted sensor to modulate fan speed based on CO2 levels. Connect to fan directly. Pre-wiredwith 2m cable (not adjustable).

Switched Live by othersAny mains voltage signal connected to the switchedlive terminal (S/L) in the unit. This affects theconnected fan only.

ECOSMART ENABLERS & DETECTORS ECOSMART SPEED CONTROLLING SENSORS

Simple Plug-inSystem

BMS0-10V dc signal to activate the system and modulatefan speed. Select/Deselect H&C.Note: this will override any other devices (eg. ES-UCF)fitted (except in Constant Pressure fans).

Simple low voltagesensors completewith pre-pluggedcable means thatany control functionis easily achieved.You decide whichconditions tomonitor and thesystem will operateat the optimumspeed.

Simple SELV wired, plug-in ‘enablers’ start and stop the fan, when activated

from either start-up or trickle ventilation mode. These ‘enablers’ include time

clocks, infra-red detectors, switch live contacts, humidistats, thermostats and

BMS contacts.

All systems must include at least one enabler. (NB. When used, BMS control and

time clocks take over all other enablers). Integrated speed control (inverter or

electronic) is included with all Ecosmart controlled fans and air handlers. ES-ISC

are external to some fans and need to be hard wired e.g. SQF, Airmover.

Once the fan is activated the sensor takes over. They will maintain comfort/

design conditions by automatically adjusting fan speed up and down and power

or flows through elements or heating/cooling coils. The sensors include

temperature, relative humidity, CO2 or as determined by the BMS.

Stylish and simple to operate user control facilitates manual operation where

desired.

029 2085 820010

ECOSMART, BMS AND COMMISSIONING CONTROL OPTIONS

Nuaire fans and Air Handling Units can be provided with the following pre-

selected control options, simply and easily by adding letters to the end of the

fan code, there is no need to select or specify the controls individually if one

of these options are chosen :

ES Ecosmart controls The compact Ecosmart control module comes complete with a factory fitted

Ecosmart PCB which will control the fan unit within the desired design

parameters and provide the interface between all external control devices

detailed on these pages.

The Ecosmart control module has the following energy saving components

integrally mounted, pre-wired to interface with the purpose made PCB, all

components pre-wired, configured and factory fitted by the manufacturer:

(Not pre-wired to eg. SQF, Airmover).

• Integral Frequency inverter/speed controller.

• Integral maximum and minimum speed adjustment for commissioning.

• Integral adjustable run on timer.

• Integral BMS interfaces - 0- 10V speed adjustment.

• Integral BMS interfaces - Volt free failure and status indication.

• Integral background ventilation switch (trickle switch).

• Multiple IDC sockets for interconnection of sensors or fans using

pre-plugged 4-core low voltage cable.

• Pre-programmed with soft start function.

SET UP/COMMISSIONING BOX

The Ecosmart control module has the following two options fitted

as standard.

BMS interfacesThe Ecosmart control module can be pre-configured to provide the following

integrated BMS interfaces.

• 0 - 10 volt input to provide a full BMS interface.

This will enable the following functions:-

Switch the unit ON/OFF.

Switch heating or cooling ON/OFF (AHUs with relevant coils).

Switch from low speed to high speed - variable.

Switch from low speed to high speed - trickle and boost principle.

Full speed control facility.

• 2 No. Volt free contacts to provide fan run and failure indication to provide

system status.

• An integrated commissioning/speed control to accurately commission the

system, with minimum and maximum speeds easily adjusted via a miniature

dial, as recommended in Part L. This will enable the unit to be configured to run

between set parameters thus saving motor power and limiting noise.


COMMISSIONING SET UP

The Ecosmart control module can be pre-configured to provide the following

integrated commissioning features only.

• Integrated commissioning/speed control to accurately commission the system,

as recommended in Part L, This will enable the unit to be configured to run

between set parameters thus saving motor power and limiting noise.

• Minimum and max speeds easily adjusted via miniature dial.

The commissioning set up facility directly controls the integrated speed

control/frequency inverter.


ENABLING SENSOR

ES-PIR2 Sensor The sensor operates with Safe Extra Low Voltage (SELV) with power supplied

from the fan unit via the communications cable. The ES-PIR sensor will activate

the system when movement is detected. An adjustable 1-60 minute timer is

incorporated to provide a run on facility. Up to 10m directly in front of lens and

up to 2m at 40º to the lens axis.

When adjustments are made to the sensor, the LED light on the sensor front will

flash on and off to show the set point. First, green flashes will indicate the set

point in TENS, then red flashes will indicate UNITS.

For example 1 green flash and 5 red flashes show you that the PIR timer is set to

fifteen minutes.

ES-Thermostat2The ES-Thermostat will enable the fan when the ambient temperature is 1ºC

above the set point and will stop the fan when the temperature is at or below

set point. The sensor operates with Safe Extra Low Voltage (SELV) with power

supplied from the fan unit via the communications cable. Adjusting the sensor

set points. Adjustable temperature setting 10 - 35ºC.

After adjustments are made to the sensor, the LED light on the sensor front will


point in TENS, then red flashes will indicate UNITS. For example 2 green flashes

and 3 red flashes show a temperature set point of 23ºC.

N

NET

Fan 2 Fan 10V

0-10V

Run

Run

FaultFault

Link wire

0V = No BMS0.25V = Off or Trickle0.5V = Speed 10.75V = Speed 1 & Cooling1V = Speed 1 & HeatingHeat & cool signal via NET to ES-VF

LSL

OPCLN

RET

240V 1 ph 50Hz*Sensor

*Not included as standard.

Switch live signal 100-230VDamper Open 230V 1A

Close 230V 1A

Return 230V signal

Contacts Volt Free Run & Fail

Neutral

0-10V BMS Signal

F3 F4

Ecosmart Control Device

Important: The Fan will not control external Heating/cooling equipment, will only provide ON/OFF Signal

MIN =

MAX =

SL Run on =

TRICKLE =

TEST =

LED indicators

Min Max SL run on

Trickle Test

0 1

Pwr

Standby

Fan 1

Fan 2

Heating

Cooling

Fault

Frost

Tx

Rx

Minimum speed adjustmentMaximum speed adjustmentSwitched Live Run-On Timer adjustmentSelects trickle running:

0 = off, 1 = selectedTest button

11nuaire.co.uk

ES-Humidistat2The ES-Humidistat will enable the Ecosmart fan when the measured humidity

level is 2% above the set point and will stop the fan when the humidity is at or

below set point. The sensor operates with Safe Extra Low Voltage (SELV) with

power supplied from the fan unit via the communications cable. Adjusting the

sensor set points - Adjustable RH setting 65 - 85%.

After adjustments are made to the sensor, the LED light on the sensor will flash

indicating via a small aperture on the side of the sensor the set point. First, green

flashes will indicate the set point in TENS, then red flashes will indicate UNITS.

For example 7 green flashes and 3 red flashes show a RH set point of 73%.

SPEED CONTROLLING DEVICES

ES-RH2 Humidity SensorThe ES-RH Sensor will vary the ventilation rate automatically according to the

measured humidity. Voltage (SELV) with power supplied from the fan unit via

the communications cable. The sensor has an adjustable 65 - 85% RH set point.




For example 7 green flashes and 5 red flashes show a set point of 75% RH.

Note: fan speed = 0 (i.e. off) at or below the set point.

ES-TEMP2This will modulate fan speed based on room temperature. The sensor operates

with Safe Extra Low Voltage (SELV) with power supplied from the fan unit via

the communications cable.




For example 2 green flashes and 3 red flashes show a temperature set point of

23ºC.

Note: fan speed = 0 (i.e. off) at or below the set point.

Sensor Response - Normal operation (Proportional band over ten 10ºC steps)When temperature RISES, the fans will increase speed. (See above) which shows

a set point at 19ºC. For single phase fans, the speed steps are approximate and

actual running speeds will be dictated by the operating pressure of the system

and the type of impeller used in the blower. Fan is switched off at set point

unless the trickle switch is selected.

ES-CO2 Carbon Dioxide Sensor - OperationThe CO2 Sensor will adjust the fan speed in response to the CO2 concentration

in the airflow. The fan speed is divided into 10 steps from minimum (step 1) to

maximum (step 10). See table below for response details.

Speed 1 2 3 4 5 6 7 8 9 10

CO2 PPM 502 580 659 737 834 902 980 1059 1137 1215

ES-LCD and ES-LCDM (Time clock included)The ES-LCD/M Time clock will switch the

system on and off at pre-determined times

set by the user. This digital time clock will

override the user control for effective on/off

operation or any other enabling device eg.

PIR. The time clock operates on Safe Extra

Low Voltage and is powered from the fan

control module. The connection is made into

any ‘NET’ socket on the fans integral control

module. See I&M for further details.

ES-LCD and ES-LCDM includes:Ventilation, Automatic Heating & Cooling Enable/Disable.

Temperature is set at main control of unit.

ES-CI (Ecosmart controlinterface)

Enables any Ecosmart unit to be controlled via any remote non Ecosmart

switching device or item of plant.

Connect to fan via 4-core data cable

STATUS

PWR

Fan Heat Cool

(B) Switch to selectmax or min speed

(A) O- IOV signal to selectfan speed only

Volt free contacts to select heatingand cooling operations

Volt free contact to switch on fan

OV

O -

IOV

Min

Sele

ctM

ax

029 2085 820012

The lower and upper threshold values can be adjusted as shown in the

following tables below and overleaf.

Note: Default operation is CO2 only. To select temperature option as

well please refer to I&M.

ES-CO2RM AND ES-CO2RMPP CO2 SENSOR

Max speed

Minspeed

OffSee note 2

0.15V

T1 or C1 CO2 T2 or C2 or Temperature signalAdjustable

Lower threshold

AdjustableUpper

threshold

TEMPERATURE THRESHOLD SWITCHES 1-9

Switch settings 3 2 1 Threshold temperatures

T1 (ºC) T2 (ºC)

Off Off Off 25 28

Off Off On 24 28

Off On Off 23 28

Off On On 22 28

On Off Off 25 30

On Off On 24 30

On On Off 23 30

On On On 22 30

ES-CO2 RM

CO2 and temperature sensor requires SELV power supply by others.

ES-CO2 RMPP

CO2 and temperature sensor supplied with SELV ac power supply.

The sensor will monitor the carbon dioxide (CO2) and temperature (see note 1)

within the room. If either reading reaches the low threshold values (i.e. C1 & T1)

see opposite, then a signal will be sent to start running the fan at minimum speed.

As the room CO2 and temperature rises, the fan speed will progressively increase

in steps until the upper threshold values are reached. When both CO2 and

temperature readings are in operation, whichever reading that results in higher

fan speed will be used by the fan unit.

The threshold values and other operations can be adjusted by setting DIL

switches on the PCB to different positions.

Note 1: As supplied; the default operation of the sensor will be based on

carbon dioxide reading. If operation with both carbon dioxide and

temperature is desirable then change position of switch 7 to ‘ON’.

Note 2: use switch 8 to change the off state (see table below).

13nuaire.co.uk

BMS co

mpa

tible

Commissioning

control

Run

/Fail signa

l (vo

lt free)

Inve

rter control (3 ph

ase)

Spee

d co

ntrol (sing

le pha

se)

Pre-pipe

d co

il (c/w

DRV

)

Motorised co

ntrol v

alve

(c/w actua

tor)

Air off Tem

p stat

Frost protection

Hea

t dissipation run on

Plug

in sen

sors (see ov

erleaf)

Trickle an

d Bo

ost switch

Automatic Byp

ass

CONTROL CHECKLIST - WHAT’S INCLUDED

The controls indicated in the checklist are incorporated in the units as standard,

enabling you to co-ordinate your controls to avoid duplication and reduce costs.

Please refer to this when checking the controls specification.

www.nuaire.co.uk/specifications

Fan Code Fan Type

Ecosmart Boxer LPHW Air Handling l l l l l l l l l l

Ecosmart Boxer Electric Air Handling l l l l l l l l l

Ecosmart Squrbo Supply Unit l l l l l l l l l l l

Ecosmart Squrbo Extract Inline Single fan l l l l l l

Quietscroll EST Twin Fan l l l l l l l

Constant Pressure Twin/Single Fan l l l l l l

Extractor ESX Inline Single fan l l l l l l l

Ecosmart Airmover ESAM* Inline Single fan l l l l l l l

Ecosmart Squif* Inline Single fan** l l l l l l l

Ecosmart Twin Squif* Inline Twin fan** l l l l l l l

Ecosmart Axus* Inline Single fan l l l l l l l

XBOXER Plate heat exchanger Heat Recovery l l l l l l l l l l l l l

XBOXER Thermal wheel (size 4 to 6) Heat Recovery l l l l l **** **** l l l l l l

XBOXER Thermal wheel (size 1 to 3) Heat Recovery l l l l l l l l l l l l l

XBOXER Run around coil Heat Recovery l l l l l l l l l l l l l

ES-OPUS Inline/surface/recessed l l l l l l(Not compatible with ES-LCD)

* ESAM, Squif, Twin Squif and Axus have a separate Ecosmart control pack that needs to be hard wired. ** Motor out of airstream. *** Does not apply to 'NC' (no control) XBOXER units. **** Supplied by others.

Ecosmart fans and Air Handling Units are pre-programmed and use simple plug and go control interfaces reducing the need for complicated controls.

Ecosmart enables multiple fans to be interconnected & controlled by the same sensors.

Fully BMS compatible using 0-10V interfaces and volt free contacts, simplifying all your control requirements.

Ecosmart ES-OPUS. For units with heating/cooling coils provided with Ecosmart control. An enable signal needs to be provided for heating/cooling to operate ie. ES-LCD, BMS O-10V and ES-CI.

Note: For other control options refer to Commercial catalogue.

029 2085 820014

NATURAL VENTILATION - SAVING MONEY COMES NATURALLY

Intelligent all-year-round ventilation.

A-Series e-stacks: innovative low energy approach for buildingswhere rooms are connected to a central atrium.

S-Series e-stacks: Suited to spaces with higher heat gains and forrooms with more than 35 occupants, such as halls and theatres.

R-Series e-stacks: Designed specifically for rooms occupied by 10to 35 people, ideal for classrooms and offices.

F-Series e-stacks: Designed for spaces which have access to theexternal wall and where sloping roofs are used for high levelwindows.

By employing upward displacement in the

summer and a patented mixing mode solution

in the winter, e-stack uses natural ventilation to

reduce CO2 levels and energy bills while helping

to maintain a constant room temperature,

enabling occupants to work more efficiently

and more healthily.

.IN SUMMER

Natural displacement ventilation can be utilised

allowing opening windows/louvres to provide make

up air for the natural stack effect through the

e-stack unit. This can be boosted in very high

temperatures to purge the rooms and return the

space to a comfortable level. In night cooling mode

the system allows cool air in through the e-stack

unit to take advantage of the thermal mass and

again can be boosted to provide additional supply

air and cooling.

IN WINTER

Fresh air is allowed to enter the space via the divided

shaft in the e-stack unit where it is mixed with warm

room air in the mixing box section. The mixed air is

then distributed in to the space at the desired

temperature avoiding cold drafts by constantly

measuring internal and external temperatures. The

remaining warm stale air is allowed to rise from the

space to the atmosphere. Internal CO2 sensors ensure

the system operates within building regulations 365

days a year.

The combination of natural ventilation and mixed

mode systems ensure ideal room conditions for the

occupants 365 days a year by intelligently monitoring

and controlling the ventilation system. We believe that

using this combination you can create environments

that are perfectly suited for all applications and

buildings.

For further details refer to the Commercial catalogue.

Cold Hot Low High

OUR NATURAL VENTILATION SOLUTION USES A COMBINATION OF NATURAL VENTILATION TECHNIQUES TO

KEEP BUILDINGS SUPPLIED WITH FRESH CLEAN AIR 365 DAYS A YEAR WHILST REDUCING ENERGY COSTS.

For further details visit www.nuaire.co.uk/e-stack

15nuaire.co.uk

The state-of-the-art hi-tech hub which was designed

by Atkins and installed by Interserve, encompasses 14

laboratories, four ICT suites, 30 teaching spaces, and

associated administration and ancillary features,

spanning in total 6,500m2.

The hub’s main atria provides an avenue between

two teaching blocks and is a weatherised space

serviced by low velocity fans.

Mechanical ventilation housed in the buildings’ roof

voids includes stacked Xboxer heat recovery, while

Through a combination of passive and assisted night

cooling as well as controlled daytime ventilation

rates, the peak internal temperature observed was

27.5ºC even when external temperatures exceeded

29ºC (BB101 allows up to 120 hours over 28ºC, and

a peak temperature of 32ºC).

As you would expect in summer, CO2 levels

remained well below those required to meet BB101.

Additional savings were observed in winter due to

the heat gains in the space being used to temper

incoming air in a reliable, controllable manner.

The limited amount of thermal mass available for

temperature buffering was maximised, and the low

constant pressure twin fans were chosen to aid

ventilation in other areas including ICT suites, toilets

and administrative facilities.

A series stacks situated on the roofs are served by

shafts taken through the building, which serve all

classrooms and laboratories, delivering fresh air

efficiently and quietly to ensure that students and

staff are not disturbed during lesson time.

Both the natural and mechanical systems are

designed to work throughout the year.

energy fans in the units were only activated when

the internal spaces benefitted from increased

airflow through the rooms.

This low energy mixing negates the need for

preheating of air, which causes many naturally

ventilated buildings to actually consume more energy

than their mechanically ventilated counterparts. In

fact, space heating is only required for pre-heating

prior to occupancy, and in the coldest weather.

As buildings become increasingly well insulated and air-

tight, the e-stack system becomes an ever-increasingly

attractive option from an energy perspective.

NATURAL & MECHANICAL VENTILATIONAT THE HUB BUDMOUTH COLLEGE

CLIENT: DORSET COUNTY COUNCIL

ARCHITECT: ATKINS

BUILDING SERVICES: DORSET COUNTY COUNCIL

CONTRACTOR: INTERSERVE

LINTON COLLEGE, CAMBRIDGESHIRE

At Linton College in Cambridgeshire, the

effectiveness of the e-stack system was

highlighted through its ability to limit internal

temperatures even when external

temperatures soared.

Tim Pestridge Architectural Photography LLP (CSCS compliant).Members of the British Institute of Professional Photographers (BIPP).

029 2085 820016

OUR SPECIFIC ATION 17

• A GUIDE TO COMMERCIAL BUILDING SERVICES LEGISLATION

• INSTALLATION GUIDELINES

• USEFUL INFORMATION

17nuaire.co.ukDownload specification from www.nuaire.co.uk/specifications

029 2085 820018

A GUIDE TOCOMMERCIAL BUILDINGSERVICES LEGISLATION

BUILDING REGULATIONS PART L2 (CONSERVATION

OF FUEL AND POWER IN NON-DOMESTIC

DWELLINGS) EFFECTIVE FROM OCTOBER 2010

The new part L2 Part A for new buildings and Part B

for work on existing buildings came into force in

October 2010.

To fall in Line with the EU Energy Performance in

Buildings Directive (EPDB), the new L2 2010 , Part F

(Northern Ireland – update due 2012) and the

Technical Handbook - Section 6 (Scotland) 2011

documents require a major change in the way

buildings are to be assessed for compliance with

energy efficiency and carbon emission standards.

The new approach taken is to compare the CO2

emissions for the actual building (Building Emission

rate – BER) with those of a notional building of the

same size and shape, and constructed to a concurrent

specification laid down in the National Calculation

Methodology (NCM) – the approved procedure for

demonstrating compliance with the UK building

regulations – (Target Emission rate – TER).

This approach has been adopted because of the

variations in improvement potential across a variety of

building types. Extensive research was carried out into

the main building categories, and appropriate levels of

CO2 emission reductions were identified based on the

cost of achieving them in the various building types.

When factored together with the likely build mix and

build rates, the aggregate CO2 emissions reduction

over 2006 emissions rates is 25 %.

Part L requires a reasonable provision for the

conservation of fuel and power in buildings by:

a. limiting heat gains and losses:

i. through thermal elements and other parts of the

building fabric: and;

ii. from pipes, ducts and vessels used for space heating

and space cooling and hot water services:

b. providing and commissioning energy efficient fixed

building services that are fitted with effective

controls and;

c. providing the building owner with sufficient

information about the building and the fixed building

services and their maintenance requirements, to

allow their efficient operation.

Approved Documents offer technical guidance on

means of compliance with the Buildings regulations.

They are not intended to represent the only methods

available, but they do provide reference points that are

useful in the practical process of compliance. If the

guidance is followed, there is a presumption that the

compliance requirements will be met.

Approved Document Part L2A covers work on new

non-domestic buildings and major extensions to

existing non-domestic buildings – i.e. where the

additional useful floor area is greater than 100m2 and

25% of the original building’s floor area.

Approved Document Part L2B addresses works on

existing buildings including extensions (smaller than

those mentioned above), change of building use,

provision or extension of controlled services and

fittings, replacement of thermal elements and

consequential improvements. The latter being general

fabric or services upgrades triggered by a complex set

of criteria related to intended works.

The new regulations require the submission of a

checklist that demonstrates that compliance has

been met against five defined criteria. These criteria

are detailed in Approved Document L2A.

Criteria1 is mandatory and refers directly to Building

regulation 17C. Criteria 2-5 are considered as guidance.

Criteria Main Points

1. The Building emission rate (BER) must be less than

the Target emissions rate (TER) as calculated under

the approved methodology.

2. The performance of the building fabric and heating,

hot water and fixed lighting systems should achieve

reasonable overall standards of energy efficiency. To

avoid a situation where poorly performing systems

or construction details are compensated for by other

means, limits on design flexibility are imposed for

building fabric and services. For building services, this

includes the use of appropriate controls, equipment

with minimum efficiency levels (verified by testing

to acceptable standards) see “Associated

Documents” below, and appropriate levels of

metering and monitoring.

19nuaire.co.uk

3. The building shall be provided with appropriate

passive control measures to limit solar gains – to

reduce the need for, or capacity of air conditioning

systems. (note that compliance with the suggested

assessment method does not imply that acceptable

levels of comfort will be achieved in the space.

4. The performance of the building, as built, is

consistent with the BER. Credits are given in the

emissions calculation procedures where this can be

demonstrated. Particular attention is required to

building air-tightness, where extensive guidance

exists and to the continuity of thermal insulation,

for which it is suggested that reference be made to

accredited construction details and third party

verification of design detail. Building services are

required to be commissioned effectively (where

possible) according to the approved procedures in

CIBSE guide M – Commissioning Management.

Documentary evidence of the use of the approved

procedure is required for Building Control to issue a

final compliance certificate. Air leakage testing of

ductwork may be required, depending on the

classification claimed in the BER calculation.

5. The necessary provisions for energy-efficient

operation of the building are put in place. This is best

achieved by using the guidance in CIBSE TM31 –

Building Log Book toolkit. Information on the

building services equipment may be cross referenced

to the specification documentation and the

manufacturers’ operation and maintenance

manuals. Data used to calculate the TER and BER

should be included in the Log Book along with the

recommendations for improvements that are

generated by the assessment software package used.

ASSESSMENT TOOLS - SOFTWARE

The carbon emissions calculation methodology required

when generating the BER, TER and the compliance

checklist, is implemented in the Simplified Building

Energy Model (SBEM) with its user interface - iSBEM –

freely obtainable from the National Calculation

Methodology web site. Local authorities are authorised

to accept calculations only from persons deemed by

Building Control Bodies as suitably competent.

Several dynamic thermal modelling software tools

have also been approved for the purpose of assessment

and are commercially available, and offer additional

functionality.

Note that it is required to provide Building Control

with the design based TER / BER calculations,

together with details of the building specifications

upon which they have been based, prior to the

commencement of construction works.

At the end of construction, calculations based on

the completed design, and details of changes in

construction method or specification must also

be submitted.

ASSOCIATED DOCUMENTS

Because of the large amount of technical data and

information that is now required to prove compliance

with the Building Regulations, and the relative

inflexibility of the Approved document as a design tool,

it has become necessary to refer to additional

documentation for much of the technical detail. These

associated documents again offer guidance on

requirements without necessarily providing absolute

limits of performance. In many cases, reference is made

to a wide variety of relevant harmonised European

technical standards that exist to support the important

EU directives such as the Energy performance in

Buildings Directive, and the Energy Using / Energy

Related Products Directive.

For building services products, the Non Domestic

Building Services Compliance Guide describes

performance standards for the majority of equipment

types that are encountered in current designs,

including heating, cooling, hot water, pipe and duct

insulation, lighting, pumping and, of most relevance to

Nuaire products – Section 10: Air Distribution systems.

This guidance considers the following system types :-

Central air conditioning systems, central mechanical

ventilation systems with heating, cooling or heat

recovery, all “other” central systems, zonal supply and

extract systems where the fan is remote from the zone

and ducting is required – for example in a ceiling void

or on the roof, and local systems serving one room

directly (un-ducted) such as a window mounted fans.

The principal means of efficiency regulation for

ventilation systems is the use of limiting Specific Fan

Power (SFP).

As a straight-forward, easily calculated location and

duty specific measure, this single figure reference

effectively combines the actual efficiency rating of the

product, and the adequacy of the actual system design.

Calculated as the mains delivered power (W) divided

by the system delivered airflow (l/s), the guide provides

SFP limits for each system type.

The variations shown are related to assumptions made

about the efficiencies of the available impellers / motors

/ drives employed, and the aerodynamic resistances of

the internal components – for example coils and filters

– within air handling units, and of the distribution

ductwork etc.

029 2085 820020

Additional SFP allowances are given for various system

elements.

Some of the application classes defined are extremely

tightly specified in this regard, and this leads to a

situation where fan types that may have practical

benefits (for example in acoustic properties) cannot be

used.

There are practical limits to the efficiency of

commercially available components, and this will

ultimately constrain the types of distribution systems

that may be used in terms of the operational system

resistance.

The latest edition of the Scottish Technical handbook

Section 6, includes limiting values for external system

resistance (this was also planned for the England and

Wales version, but deleted late on in the process).

The guide very clearly states (10.3 Key Terms) that the

specific fan power of an air distribution system should

be calculated according to the procedure given in BS

EN 13779 2007 Annex D:- Ventilation for Non-

residential buildings – Performance requirements for

ventilation and room conditioning systems.

This important and informative standard describes

in Annex D: - the SFP value for the entire building,

defined as the weighted average of the SFPE values of

individual units and fans.

For variable air volume flow systems, the SFPE shall be

defined at a partial operating air flow and related

external pressure drop - specified for the fan or air

handling unit.

If the operating profile (of flow rate with respect to

time) of the unit is known, then this can be used to

establish the partial flow rate, and if not known, then

a default value of 65% of design maximum is

suggested as “a realistic mean annual value for normal

comfort ventilation.

Additional design criteria are defined for the

equipment: - for SFP at 25% of maximum duty to be

no more than that at full speed; provision of variable

speed drives for fans with motors of over 1100 W; and

for the enclosure leakage grade to be L2 as defined in

BS EN 1886:2007 Ventilation for buildings - Air

handling units - Mechanical performance.

Ducting leakage standards are also defined.

Minimum control packages are suggested for each

system type, and it is stated that Heat recovery devices

should be included where supply and extract

ventilation systems include heating and/or cooling.

PART F – BUILDINGS OTHER THAN DWELLINGS

Almost in complete contrast to the extreme detail

given concerning residential ventilation systems,

Approved Document F sets out guidance for the

following non-domestic buildings – offices, car parks

& “other” building types.

General guidance is given on indoor air quality criteria

to facilitate the development of alternative ventilation

solutions (from first principles).

Guidance is given on provision for maintenance access,

and the necessity to ensure the cleanliness of

ventilation systems and the security of a clean fresh

air supply for the protection of occupant health.

For office ventilation (for which a considerable amount

of technical research exists) several outline methods

are proposed for system design.

Alternative approaches (including natural and mixed

mode ventilation) are referred to via the appropriate

CIBSE guides.

For Car Parks, including those below ground simple

criteria are expressed for the provision of adequate

ventilation by means of accurate Carbon Monoxide

level control. Although not referred to in ADF, CO

based ventilation alone may not control visual

contamination levels, particularly where diesel engined

vehicles predominate.

Approved Document B is also very relevant to car parks

and should be cross referenced.

An alternative approach using natural ventilation

openings is given, and also mechanical systems with

simple air change rate limits are described, and

references given to additional sources of guidance.

For “other” buildings, Table 6.3 details an extensive list

of reference documents covering the ventilation

requirements of a wide range of buildings.

For more details about ventilation systems that can

help you meet part F contact Nuaire on

02920 858 200.

21nuaire.co.uk

SCHOOL BUILDINGS.

Compared to most other types of buildings, schools

and hospitals are extreme environments. They have

high occupancy levels and house many different

activities and functions within them. Areas include

offices, classrooms/study areas, canteens, commercial

kitchens and accommodation – a great mix and more

varied than most buildings.

Part F of the Building regulations applies to schools.

Ventilation provisions in schools can be made in

accordance with the guidance in DfES Building Bulletin.

BB101 exists as a complete design guide to ventilation

in schools, covering design rules for natural and

mechanical ventilation systems and concepts involved.

All major school building projects must now undergo

formal environmental assessment using the Building

Research Establishment’s environmental assessment

method BREEAM schools and the application of new

building regulations should reduce carbon emissions

significantly.

HOSPITAL BUILDINGS

Nuaire has been supplying ventilation systems to

hospitals for many years and are aware of the issues for

ventilating clinical environments.

Health Technical Memorandum 03-01 ‘specialised

ventilation in healthcare premises’ (published in two

parts):

i part A deals with the design and installation of

ventilation systems

ii part B covers operational management.

The guidance applies to new installations and major

refurbishments of existing installations.

The above memorandum also includes a revision to

reflect current guidance on theatre suite layout and

room sizes whilst including other key issues such as:

Issues relating to patient comfort and the prevention

of health care associated infections. Specialist systems

play important roles in these areas.

• Methods of controlling the casual exposure of staff

to anaesthetic substances

• The design and acceptance testing of general and

ultra-clean ventilation (UCV) systems.

• Setting out the minimum requirements for the design

of air-handling units with the regards to the control

of Legionella and other dangerous contaminants, and

safe access for routine inspection and maintenance.

For further details on school and hospital

ventilation system please contact Nuaire on

02920 858 200.

029 2085 820022

All Nuaire products are tested in accordance with UK, European

and International industry Standards for performance and

sound levels.

NUAIRE PRODUCTSACOUSTIC GUIDELINES

IT IS AT LEAST TEN TIMES MORE EXPENSIVE

TO CORRECT AN ACOUSTIC PROBLEM

THAN TO PREVENT IT.

These laboratory test standards are designed to

provide a consistent test method and which to a

limited extent that simulate the ways that a fan

may be used in a variety of installations.

Nuaire generally quote the noise levels separately

for the unit inlet, outlet and casing radiated (or

breakout) sources, to enable the system designer

to properly evaluate the product in the application.

The noise level measured on site, for example

during the commissioning process, is the sound

pressure level – and this cannot be directly

compared with the sound power levels quoted in

our fan selection tools (Nuaire catalogue and Fan

Selector).

Nuaire typically also quote a free field dBA level at

3m, and this figure, whilst useful for comparison

with other products, has a very specific definition –

and cannot be used for acoustic design purposes.

The dBA@3m figure quoted will never correspond

to a dBA measurement taken at 3m from a product

in a real building.

Acoustics is a complicated subject and must be

treated with caution as part of the services design

process. Our sales engineers and technical support

staff will often be able to offer advice on

appropriate product types for an application, but it

is often necessary to refer to acoustic specialists for

a definitive design solution.

Nuaire have put together the following bullet

points for your information and assistance :-

SYSTEM DESIGN – GENERAL AND COMMON

SENSE ISSUES

• Position the fan for minimum noise impact

• Position grilles and diffusers for minimum noise

impact

• Design the system for low pressure drop and

smooth air flow = low velocity ducting and grilles

etc.

• Where appropriate, use barriers and enclosures of

a suitable specification – ensuring that they are

properly installed (eg ceiling tiles and bulkheads).

Special acoustic grade materials are generally

available, and the first principle is to add mass to

the system – eg layers of plasterboard.

• Use appropriately specified attenuators and Anti-

Vibration mounts – again - properly installed and

not bridged to the support structure.

• Flexible or lightweight supporting structures, or

slow running fans, can require higher levels of

mechanical isolation, and this can only be

achieved with high deflection spring type mounts.

• Flexible Connectors are often a particular source of

breakout noise – if they must be used in sensitive

areas, then an acoustic grade should be specified.

• Single skinned rectangular attenuators can also be

vulnerable to breakout at the fan connection –

consider this carefully in your specification.

Ideally, use attenuators that have been specified

with breakout protection, and fit the flexible

connectors at inlet attenuator entry and outlet

attenuator exit. Any deviation from a straight

inlet/outlet condition, whether by crumpled

flexible connectors, bends, or offset transformation

pieces, will lead to an increase in the quoted in-

duct noise levels.

• Specify the correct duty with minimal allowances

- and commission the systems properly.

As a very rough “rule of thumb”, due to the

combined effects of an acoustic room property

known as “directivity” and a distance correction for

a real room situation, it is possible that the dBA

level measured in a room with a ceiling void

mounted fan above it, can be increases of 8-9 dBA

up to 14 dBA higher than the Free Field figure.

In general terms, a specification of NR 35 or 40 dBA

represents a very acceptable level for most people

in an office environment.

A requirement to achieve levels of NR 30 or 35 dBA

or less in a working space, can be considered as

challenging, and may require specialist acoustic

assistance. At the very least, with such a

specification, the acoustic requirements should be

a major design consideration.

Designated “Quiet” areas and bedrooms will need

to operate at these levels and preferably lower.

A final note: It is at least ten times more expensive

to correct an acoustic problem than prevent it.

23nuaire.co.uk

RULES OF THUMB

Plant/System Selection requirement Rule of thumb

Ductwork Typical duct velocities

– Low velocity systems 3 – 5 m/s

– High velocity systems 7.5 – 15 m/s

– Inlet louvres 2.5m/s through free areas

Ductwork Maximum pressure drop rates

– Low velocity systems 1 Pa/m run

– High velocity systems 8 Pa/m run

Ductwork Typical system resistances (including air handling plant)

– Low velocity supply 900 Pa

– Low velocity extract 300 Pa

– High velocity supply 1.5 – 2kPa

Air leakage allowance 5% in low velocity systems

VENTILATION RATES

The points which affect this are:

(a) the size of the building or room

(b) the purpose for which it is used

(c) the number of occupants

(d) the type of work they are doing

(e) heat gains from other sources, e.g., electric motors and equipment

(f) the amount of steam, dust and odours from production processes

(g) whether the customer has any particular temperature requirement for the

building

The table of recommended ACH given in information leaflets, and the more

extensive and detailed list given for different types of rooms and buildings is

based on a combination of practical experience and theory, and can safely be

used as a guide for all normal conditions in this country.

ACH = Air changes per hour

Environmental Building Application Factor Rule of thumb

Comfort Noise Levels:

Recommended maximum background noise levels for:

• very quiet rooms, eg concert halls, sound studios NR20

• quiet rooms, eg bedrooms, theatres, churches NR25

• private rooms, eg small offices, libraries, living rooms NR30

• public rooms, eg general offices, classrooms, small shops NR35

• general areas, eg reception areas, restaurants NR40

• work areas, eg kitchens, computer rooms, large shops NR45

Intelligibility of telephone conversations at background noise levels of:

• up to NR50 Satisfactory

• up to NR60 Slightly difficult

• up to NR75 Difficult

• up to NR75 Unsatisfactory

AIR CHANGE RATINGS

The simplest method of determining the ventilation rate required is to make

use of the accumulated experience of the industry expressed in a table of air

change rates.

The volume in cubic metres (m3) of the space to be ventilated is calculated

and multiplied by the number of air changes per hour to give the ventilation

rate in the m3 per hour. Division by 3.6 converts this to litres per second.

Ventilation rate (litres/s) = Volume (m3) x air changes per hour

3.6

USEFUL INFORMATION

029 2085 820024

USEFUL INFORMATION

RECOMMENDED AIR CHANGES

While the Building Regulations detail the level of ventilation required in specific

premises many engineers will also refer to the ‘Recommended Air Change Rates’

detailed within the CIBSE (Chartered Institute of Building Services Engineers) guides.

Application Air changes per hour

Banks 4 to 6

Cafes/Coffee Bars 10 to 12

Cellars 3 to 10

Changing Rooms 6 to 10

Cinemas/Theatres 6 to 10

Conference Rooms 8 to 10

Dance Halls 10 to 12

Dark rooms 10 to 15

Dental Surgeries 12 to 15

Entrance Halls 3 to 5

Factories/worshops 8 to 10

Garages 6 to 10

Gymnasiums 6 to 8

Hospital Wards 6 to 8

Kitchens – commercial 15 to 30

Laundries 10 to 15

Libraries 3 to 4

Offices 4 to 6

Public House Bars 6 to 10

Restaurants 10 to 15

Schoolrooms 4 to 6

Shops/supermarkets 8 to 10

Showers/Bathrooms 15 to 20

Stores/Warehouses 3 to 6

Swimming Baths 15 to 20

Toilets – public 6 to 8

Utility rooms 15 to 20

RULES OF THUMB FOR AIR TIGHTNESS

The Building Regulations require all commercial and industrial buildings with a

gross floor area greater than 500m2 to be tested for air tightness to a minimum

standard of 10m3/h.m2 at 50 Pascals.

Note that many passive and low energy comfort control systems, such as

Termodeck, require values of fabric airtightness considerably better than

required by the Building Regulations for them to perform optimally.

Source: Building regulations

25nuaire.co.uk

BENCHMARKS FOR GOOD PRACTICE ENERGY CONSUMPTION(kWh/m2/y treated floor area)

Cellular Open plan

natural natural Standard air Prestige air

ventilation ventilation conditioned conditioned

Gas

Good practice 79 79 97 114

Typical 151 151 178 210

Electricity

Good practice 33 54 128 234

Typical 54 85 226 358

Source: BSRIA Blue Book 2008 www.bsria.co.uk

ENERGY BENCHMARKSOffices

Energy efficiency rating (kWh/m2 per year)

Good Fair Poor

Air conditioned over 2000m2 <250 250-410 >410

Air conditioned 2000m2 or under <220 220-310 >310

Computer centre <340 340-480 >480

Natural ventilation over 2000m2 <230 230-290 >290

Natural ventilation 2000m2 or under <200 200-250 >250


HISTORIC U VALUES (W/M2/K)Non-domestic buildings

2002 1985 1972 1965 1958

Walls 0.35 0.6 1.7 1.7 1.7

Roof 0.16 0.6 1.42 1.42 –

Floor 0.25 0.6 1.42 1.42 –


ENERGY CONSUMPTION BREAKDOWNOffices

Naturally ventilated (%) Air Conditioned (%)

Space heating 60 48

Lighting 20 16

Hot water 12 6

Cooling 0 10

Other electricals 8 20


COST OF M&E SERVICESType of building and service

Type of building Type of Service and Building M&E services £/m3

Offices Air conditioned (owned) 480

Air conditioned (let) 411-426

Not air conditioned (owned) 291-301

Not air conditioned (let) 260-270

Factory Purpose built for owner 120-180

Warehouse High bay (owned) 95-185

Education Secondary/middle school 180-350

Hospitals District general 425-600

Private 630-650


USEFUL INFORMATION

029 2085 820026

THERMAL LOADS

Thermal load Type of Building or load Load per unit area

Heating load Offices 70 W/m2

Industrial 80 W/m2

Educational 100 W/m2

Retail 110 W/m2

Residential 60 W/m2

Total cooling load General office 125 W/m2

Interior zones (more than 7m from windows) 75 W/m2

Perimeter zones – 65% glazing 180 W/m2

60% glazing 120 W/m2

Typical buildings Retail 140 W/m2

Banks 160 W/m2

Restaurants 220 W/m2

Hotels 150-300 W/m2

Computer suites 400 W/m2

Solar Heat gains Windows with internal blinds south facing, June-Sept 250W/m2 of glass

Windows with internal blinds east-west facing, June-Sept 150W/m2 of glass

Other heat gains Metabolic 10 W/m2

Lighting 12 W/m2

Office machinery 15 W/m2

Source: Rules of Thumb, BG 14/2003. BSRIA Blue Book 2008 www.bsria.co.uk

HEATING DEGREE DAYS10 year average – September to May

Area Sept Oct Nov Dec Jan Feb Mar Apr May

Thames Valley 52 132 226 315 313 276 228 177 100

South East 71 158 248 332 334 302 252 201 124

Southern 62 134 217 302 307 277 246 199 114

South West 54 123 201 280 285 254 235 194 114

Severn Valley 43 120 200 294 293 257 219 178 97

Midlands 78 169 254 348 349 298 264 213 135

West Pennines 79 165 250 341 341 289 259 203 129

North West 95 182 271 354 358 308 288 227 147

Borders 99 179 262 343 346 292 281 238 179

North East 90 173 259 345 348 285 273 229 166

East Pennines 77 167 260 350 353 293 260 206 133

East Anglia 70 152 257 345 346 311 270 213 135

West Scotland 103 190 269 361 351 300 285 226 154

East Scotland 106 194 282 367 367 309 290 234 177

N E Scotland 115 202 284 375 361 312 303 253 198

Wales 68 140 216 296 310 271 254 211 143

N Ireland 96 174 254 333 337 288 273 221 153

N W Scotland 117 199 259 326 327 298 305 255 199


USEFUL INFORMATION

RECOMMENDED COMFORT CRITERIA

Building/room type Winter dry resultant Summer dry resultant Suggested air supply Maintained

temperature (°C) temperature (°C) (l/s/person) illuminance (lux)

Offices

Executive 21-23 22-24 10 300-500

General 21-23 22-24 10 300-500

Open-Plan 21-23 22-24 10 300-500

Retail

Shopping Malls 12-19 21-25 10 50-300

Small Shops 19-21 21-23 10 500

Supermarkets 9-21 21-23 10 750/1000

Banks, building societies, post office

Counters 19-21 21-23 10 500

Public areas 19-21 21-23 10 300

Relative humidity for comfort 40-60%

Source: CIBSE Guide A 2006

27nuaire.co.uk

ANNUAL SERVICE CHARGES(lettable areas)

Design area Application Other information Rule of thumb*

Offices (let)1 Air-conditioned Average service charge £1.29/ft2

for heating and

air conditioned

maintenance

Non Average service charge £0.67/ft2

air-conditioned for heating maintenance

Lifts Averageservice charge £0.23/ft2

for lift maintenance

Shopping Average service Enclosed air-conditioned

centres2 charge by size, • small £4.60-£5.30/ft2

location and type • medium £5.45-£6.96/ft2

• large £4.60-£5.30/ft2

Enclosed non air-conditioned

• small £3.48-£4.51/ft2

• medium £3.98-£5.28/ft2

• large £3.48-£4.51/ft2

Source: 1 Office Oscar 2006, Jones Lange LaSalle

2 Retail/Oscar 2006, Jones Lange LaSalle. As referenced BSRIA Blue Book 2008

ANNUAL M&E MAINTENANCE COSTS(Gross floor area)

Design area Application Rule of thumb

M&E maintenance Factories £800/100m2

Factory/office £800/100m2

Warehouses £700/100m2

Offices – air conditioned £2250/100m2

Offices – non air conditioned £1300/100m2

Call centres £2400/100m2

Banks/building societies £2150/100m2

Shopping centres – air conditioned £950/100m2

Shopping centres – non air conditioned £750/100m2

Supermarkets £1550/100m2

Shops (non food) £1100/100m2

Hospitals £1800/100m2

Nursing homes and hospices £1100/100m2

Swimming pools £1900/100m2

Sports centres £1400/100m2

Sports centres with swimming pools £1850/100m2

Primary schools £1250/100m2

Secondary Schools £950/100m2

Universities £1500/100m2

Museums £1400/100m2

Libraries £1700/100m2

Computer buildings £2400/100m2


USEFUL INFORMATION

029 2085 820028

CONVERSION FACTORS

Length 25.4mm 0.039in

0.3048m 3.28ft

1609m 0.00062 miles

Area 6.4516cm2 0.155in2

0.0929m2 10.76ft2

16.39cm3 0.061m3

28.32dm3 0.035ft3

0.7646m3 1.307yd3

0.4047 hectares 2.471 acres

Capacity 4.4546dm3 0.224 UK gallon

Speed 0.3048m/s 3.28ft/s

0.00508m/s 196.85ft/min

Mass 0.45359kg 2.205lb

1.016 tonne 0.984imperial ton

Density 16.019kg/m3 0.062lb/ft3

Fuel Consumption 0.354km/litre 2.82mpg

Force 91 807N 0.0000108kgf

Energy 3.6 MJ 0.278kWh

1055J 0.239callT

1055J 0.00095btu

105.5MJ 0.0095therm

Power 745.7W 0.00134hp

0.2931W 3.412btu/h

3.517kW 0.284ton refrigeration

746.08W 0.00134hp

Specific Energy 2326J/kg 0.00043btu/Ib

Heat Content (volume basis) 37.259kJ/m3 0.0269btu/ft3

Specific Heat Capacity 4187J/KgK 0.00024btu/lb°f


USEFUL INFORMATION

KEY INDUSTRY CONTACTS

American Society for Heating, Refrigerating & Aircon Engineers (ASHRAE)

T: 0800 962130 www.ashrae.org

Asbestos Removal Contractors’ Association (ARCA)

T: 01283 531 126 www.arca.org.uk

Association for Consulting and Engineering (ACE)

T: 0207 222 6557 www.acenet.co.uk

Association for Environment Conscious Building

T: 0845 4569773 www.aecb.net

Association for the Conservation of Energy

T: 0207 359 8000 www.ukace.org

Association of Fire Consultants

T: 08700 114 514 www.afc.eu.com

Association of Noise Consultants

T: 01727 896092 www.association-of-noise-consultants.co.uk

BRE Environmental Assessment Method (BREEAM)

T: 01923 664 000 www.bre.co.uk

British Approvals for Fire Equipment

T: 0208 541 1950 www.bafe.org.uk

British Automatic Sprinkler Association Ltd

T: 01353 659187 www.basa.org.uk

British Council for Offices (BCO)

T: 0207 283 0125 www.bco.org.uk

British Institute of Facilities Management

T: 0845 058 1356 www.bifm.org.uk

British Refridgeration Association

T: 0118 940 3416 www.feta.co.uk/bra

Building Research Establishment (BRE)

T: 01923 664 000 www.bre.org.uk

British Standards Institution

T: 0208 996 9000 www.bsi-global.com

Building Services Research and Information Association (BSRIA)

T: 01344 456 600 www.bsria.co.uk

Climate Change Action Plan

T: 0207 983 4100 www.london.gov.uk

The Carbon Trust

T: 0800 085 2005 www.carbontrust.co.uk

Chartered Institute of Building

T: 01344 630700 www.ciob.org.uk

Chartered Institution of Building Services Engineers

T: 0208 6755211 www.cibse.org

Commissioning Specialists’ Association

T: 01403 754133 www.csa.org.uk

Construction Design and Management Regulations 2007 (CDM) – HSE

T: 0745 345 0055 www.hse.gov.uk

Construction Industry Research & Information Association

T: 0207 549 3300 www.ciria.org.uk

Energy Institute

T: 0207 467 7100 www.energyinst.org.uk

Energy Saving Trust

T: 0207 222 0101 www.est.org.uk

Environment Agency

T: 01454 624400 www.environment-agency.gov.uk

Heat Pump Manufacturers Association

T: 0118 940 3416 www.heatpumps.org.uk

Heating and Hot Water Information Council

T: 0845 600 2200 www.centralheating.co.uk

Heating and Ventilating Contractors Association

T: 0207 313 4900 www.hvca.org.uk

HEVAC Association

T: 0118 9403416 www.feta.co.uk/hevac

Institute of Acoustics

T: 01727 848195 www.ioa.org.uk

Institute of Maintenance & Building Management

T: 01252 710994 www.imbm.org.uk

Institute of Swimming Pool Engineers

T: 01603 499959 www.ispe.co.uk

Institution of Engineering and Technology

T: 0207 2401871 www.theiet.org

Institution of Mechanical Engineers

T: 0207 222 7899 www.imeche.org.uk

Institution of Structural Engineers

T: 0207 235 4535 www.istructe.org.uk

Lifetime Homes for Individual and Community Well Being

T: 0207 822 8700 www.lifetimehomes.org.uk

Lift and Escalator Industry Association

T: 0207 935 3013 www.leia.co.uk

The London Plan

T: 0207 983 4100 www.london.gov.uk

National Association of Chimney Engineers

T: 01526 322555 www.nace.org.uk

Royal Institute of British Architects

T: 0207 580 5533 www.riba.org

Royal Institution of Chartered Surveyors

T: 0207 222 7000 www.rics.org

Smoke Control Association

T: 0118 9403416 www.feta.co.uk

Solar Trade Association

T: 01908 442290 www.greenenergy.org.uk/sta

Specification Expert

T: 01344 899280 www.barbour.info

The Climate Group

T: 0207 960 2970 www.theclimategroup.org.uk

UK Thermography Association

T: 01604 630124 www.ukta.org


29nuaire.co.uk

USEFUL INFORMATION

029 2085 820030

NATURAL VENTILATION

Provides low energy ventilation systems, using

the principles of natural mixing ventilation in

the winter and natural upward displacement

in the summer.

MECHANICAL EXTRACT FOR

OFFICES & COMMUNAL AREAS

Extract fans are the simplest form of

ventilation for office and communal

environments. Whether duct, wall, window

or ceiling mounted these fans will extract

moisture from wet rooms and offices to

provide continuous fresh air.

STAIRWELL PRESSURISATION & SMOKE

EXTRACT FOR MULTI-FLOOR

REQUIREMENTS

Nuaire have manufactured smoke and car

park ventilation for over 30 years and a

design service is available to complement the

complete range of smoke pressurisation and

extract fans (duct or roof mounted) for

300/400ºC for 1 & 2 hours, certified to

EN12101-3 2002.

CAR PARK EXTRACT

The comprehensive range of AXUS smoke

fans together with the Impulse car park fan

meets the ever increasing need to provide

smoke extract for car parks.

SMOKE SOLUTIONS

STAIRWELL PRESSURISATION

& SMOKE EXTRACT APPLICATIONS

AXUS SMOKE & AXT

High temperature & ambient axial extract fans

up to 85m3/s.

ALL BUILDINGS HAVE THEIR OWN UNIQUE REQUIREMENTS FOR VENTILATION. WITH THENEW GOVERNMENT GUIDELINES ON ENERGY EFFICIENCY IT IS MORE DIFFICULT TOMAINTAIN A COMFORTABLE, HEALTHY ENVIRONMENT WHILST PROVIDING AN ENERGYEFFICIENT SOLUTION.

XS RANGE

Wall, window, ceiling and roof extract fans

(up to 530l/s).

MULTI-ROOM VENTILATION

CONSTANT PRESSURE VARIABLE VOLUME

Twin fan - high performance extract up to

2.65m3/s.

CONSTANT PRESSURE VOLUME

Control damper - energy efficient volume damper

for use with constant pressure twin fan.

NATURAL VENTILATION

E-STACK (F, A, S & R SERIES UNITS)

Range of low energy systems developed as a

solution for use in new buildings.

TYPIC AL APPLIC ATION

31nuaire.co.uk

XBOXER TAILOR MADE AHUS

23 sizes covering airflow range up to 20m3/s.

MECHANICAL EXTRACT FOR

OFFICES AND COMMUNAL AREAS

ES-OPUSDC

Energy efficient range of inline,

surface and recessed fans up to

115l/s.

ECOSMART SQURBO

Energy efficient make up air

supply and extract units up to

0.5m3/s.

XTRACTOR

High efficiency centrifugal fan

up to 6.2m3/s.

TERMINATOR

Horizontal discharge roof

extract fan.

XBOXER THERMAL WHEELS

Available in 6 sizes up to 10m3/s.

XBOXER PACKAGED

HEAT RECOVERY

Low depth, high performance

range up to 5m3/s.

SQUIF RANGE

Run and standby units ideal for

‘out of airstream’ applications

such as commercial kitchens.

Twin fan option.

MRXBOX95 WALL &

LOFT HEAT RECOVERY

High efficiency up to 95%

efficient.

NUAIRE HAS OVER 40,000 PRODUCT LINES TO SELECT FROM WHATEVER YOUR REQUIREMENTS.WE HAVE THE SOLUTION FROM A SMALL EXTRACT FAN TO LARGE AIR HANDLING UNITS.

CAR PARK EXTRACT OPTIONS

IMPULSE HIGH TEMPERATURE EXTRACT

Powerful impulse fan certified to EN12101-3

(300ºC for 2 hours).

029 2085 820032

TEST,INSTRUMENTATION,RESEARCH ANDCONSULTANCY

FROM THE BUILT ENVIRONMENTS EXPERTS

2,500m2 UKAS accredited laboratory or on-site testing

Over 50 years of experience and 150 staff

Product and building energy efficiency

Supporting design, installation, operation and maintenance

For independent worldwide services contact BSRIA

t +44 (0) 1344 465600

f +44 (0) 1344 465626

e [email protected]

www.bsria.co.uk

33nuaire.co.uk

AIR HANDLING UNITS (AHU’S) 33

VENTILATION UNIT TYPE UNIT LOCATION MAX PAGEPERFORMANCE

OPUSXBOX SUPPLY/EXTRACT 75l/s 34

XBOXER HEAT EXCHANGE SUPPLY/EXTRACT 5.0m3/s 40

XBOXER 55 SUPPLY/EXTRACT 0.65m3/s 56

XBOXER HEAT EXCHANGE SUPPLY/EXTRACT 1.7m3/s 64TWINFANS

ECOSMART SQURBO SUPPLY/EXTRACT 0.5m3/s 90

ECOSMART BOXER INLINE SUPPLY/EXTRACT 5.0m3/s 94

UNDERBENCH CLASSROOM UNIT SUPPLY/EXTRACT 0.3m3/s 112

XBOXER THERMAL WHEEL SUPPLY/EXTRACT 10m3/s 114

XBOXER RUN AROUND COIL SUPPLY/EXTRACT 10m3/s 120

XBOXER CUSTOM SUPPLY/EXTRACT 20m3/s 140AIR HANDLING UNITS

BOXER MODULAR SUPPLY SUPPLY 6.0m3/s 150

029 2085 820034

OPUSXBOX - SMALL COMMERCIAL HEAT RECOVERY SYSTEM

LOW DEPTH, HEAT RECOVERY UNIT WITH MULTIPLE SPIGOTS AND

ECOSMART CONTROLS.

35nuaire.co.uk

AIR HANDLING UNITS (AHU’S)

OPUSXBOX

TECHNIC AL INFORMATION

LOW DEPTH 185MMThe shallowest available, ideal for applications

where space is at a premium.

HIGH EFFICIENCYHeat recovery efficiency in excess of 70% possible,

this together with low watt D.C. motors gives all

round energy savings.

QUIET, COMPACT & POWERFULLow noise levels, compact design and a high

performance, provides the perfect engineering

solution.

ECOSMART EFFICIENCYSupplied with Ecosmart control, providing a simple

to install, easy to commission, energy efficient

solution.

PLUG AND GOEcosmart controls and sensors, (please refer to

controls section) simply plug directly into the unit –

supply and extract then respond to the conditions

being monitored. An ES-CI will also be required.

FLEXIBLE SOLUTIONSupply and extract airflows are easily fine tuned

using integral speed adjustment and built in

balancing dampers at each spigot.

QUICK INSTALLATIONA single point fixing bracket with anti-vibration strip

enables quick and easy installation.

LOW MAINTENANCE COSTSHeat exchanger block and filters are easily removed

from below and cleaned ensuring longer fan life

whilst maintaining efficiencies.

QUIETEST UNIT AVAILABLEAcoustically lined with advanced impeller

technology, ensuring the quietest system possible.

5 YEAR WARRANTYFor peace of mind.

BENEFITS

opusXbox inceiling void

Fresh inlet

Extract Air

CeilingMountedExtract Grille

Ceiling GridMountedSupply Diffuser

Exhaust tooutside

TYPICAL INSTALLATION:

Extract fan section and Knockout spigots.commissioning controls.

OPTIONS INCLUDE:

Easy access to filters. Min and max speed and run on timer adjustment.

029 2085 820036

PERFORMANCE - OPUSXBOX

OPUSXBOX


OPUSXBOX


Casing

(m3/hr)

Fan

Stat

ic P

ress

ure

(Pa)

50

150

250

350

450

100

200

300

400

Air volume flow rate (l/s)

0 36 72 108 144 180 216 252 288

0 10 20 30 40 50 60 70 80

100%75%

50%25%

0

43

111 2

VType D

Air Density 1.2 kg/m3

ISO 5801 2007AMCA 300

Code descriptions

OPUSXBOX

ELECTRICAL, SOUND & WEIGHT

FLC SC* Sound figures Induct sound power level re 1pW Breakout Weight

Curve Ref W* * (amps) (amps) 125 250 500 1K 2K 4K 8K dBA @3m (Kg)

1 (25%) Supply fan 5 0.05 0.05 Inlet 29 31 28 15 16 7 2 15 25

Outlet 19 26 23 14 8 4 4

Extract fan 5 0.05 0.05 Inlet 18 26 17 7 4 5 5

Outlet 35 39 43 34 34 26 16

2 (50%) Supply fan 17 0.1 0.1 Inlet 45 47 44 31 32 23 15 29

Outlet 35 42 39 30 24 12 9


Outlet 51 55 59 50 50 42 32

3 (75%) Supply fan 51 0.3 0.3 Inlet 55 57 54 41 42 33 25 38

Outlet 45 52 49 40 34 22 19


Outlet 61 65 69 60 60 52 42

4 (100%) Supply fan 120 0.7 0.7 Inlet 62 64 61 48 49 40 32 44

Outlet 52 59 56 47 41 29 26


Outlet 68 72 76 67 67 59 49

*Fans are programmed with a soft start, therefore starting current is the same as the FLC.Please note step curves shown are for information purposes only and are not individual units. The units actual duty range is infinitely variable.**W = Watts are total power consumption.

Fixing screw hole.

Bracket tongues engage with casing slots, then unit rotated up to align with fixing screw hole.

Slots in casing either side of unit to allow alternative mounting option.

OPUSXBOX

INSTALLATION

37nuaire.co.uk

OPUSXBOX CONFIGURATIONS

View from underside with cover removed

Download specification from www.nuaire.co.uk/specifications


OPUSXBOX


850

685

637

Bracket fixing

VIEW FROM UNDERSIDE WITH COVER REMOVED

SIDE VIEW

MOUNTING BRACKET TOP VIEW

Mounting bracket

END VIEW

Single screw unit fixing

185

10

250

4 holes 7.5mm dia.

4 x spigot knockouts. 1 x 125mm dia. and 3 x 100mm dia.for each supply and extract system

Cable entry 20mm

4 x end spigotknockouts100mm dia.

Mains connection box

125 dia. 100 dia. extract extract

100 dia.extract

100 dia.extract

100 dia.supply

100 dia.supply

125 dia. 100 dia.supply supply

125 dia. Intake

125 dia. discharge

Condensate drain 22mm OD

Weight: 25kg

Junction box for sensors etc

Drain

DIMENSIONS (mm) OPUSXBOX

Air Discharge tooutside via 125 dia spigot

Extract fan and commissioningcontrols

Supply fan and commissioningcontrols

Filter

Fresh air inletvia 125 dia spigot

100 dia spigotc/w V.C.D

4 x 100mm diaspigots c/w V.C.D

Filter




Communicationsterminal box

Mains voltageterminal box

Mounting bracketwith A.V. strip

22mm condensate tray and drain

029 2085 820038

WIRING FOR OPUSXBOX


OPUSXBOX WIRING


N

L

SL

TrickleLink

DO NOT USE

Pre-wired tojunction box

LVT NET TR

240V 1ph supply pre-wired to terminal box

Switch liveinput pre-wiredto terminalbox

TEST

Status

300

60Run-on(mins)

25

100Max

Airflow(%)

25

100Min

Airflow(%)

Circuit board wiring.Other control wirings are available on each fan.

Open the cover of the unit to gain access to these connections.

The supply and extract fan within the unit are pre-wired to an external wiring

box for ease of connection. All field wiring must be routed through a suitable

local isolator.

Basic wiring. Both supply and extract will run at constant speed.

The fan duty is controlled via the 'Boost' setting.

Trickle and Boost operation. Both supply and extract will run at trickle

and boost speed together. Closing the boost switch will cause both

fans to run at boost setting.

Wiring for independent boost.The supply and extract fan will trickle and boost

independently.

N

L

2

1

L

N

E

230V

- 5

0Hz

Factory fitted links

N

L

1

2

3A fuse

Isolator by others

N

L

2

1

L

N

E

230V

- 5

0Hz

Remove factory fitted link from 'L' to '1'

N

L

1

2

3A fuse

Isolator and switch by others

Boost switch

N

L

2

1

L

N

E

230V

- 5

0Hz

Remove all factory fitted links

N

L

1

2

3A fuse

Isolator and switches by others

Boost switches

Boostsignal forextractfan

Boostsignal forsupplyfan

39nuaire.co.uk


OPUSXBOX


OPUSXBOX

OPERATIONThe supply and extract ventilation unit shall be as indicated on the drawings and

shall be in accordance with the particular fan schedule in the specification.

Where a stand alone heater battery it will raise the temperature of the supply air

to the design room temperature after the air has passed through the heat

exchanger. The ventilation unit shall automatically vary the ventilation rate, as it

receives signals from one of the optional interconnected sensors. When signals

are received, the fan shall either vary its speed proportionally or on a trickle and

boost principle.

The unit shall have the facility to commission the supply and extract fans

individually via inbuilt minimum and maximum speed adjustment, the fans

themselves shall have infinitely variable speed control.

OPUSXBOX - UNIT SPECIFICATIONThe fans shall be acoustically lined with high density class “O” flame retardant

insulation, giving extremely low noise levels. The unit shall have a heat exchanger

block manufactured from aluminium with a thermal efficiency of approximately

70% which shall be protected by G2 grade filters on supply and extract. It shall

come complete with a condensate drip tray and drain connection, integral

minimum and maximum speed controls, run on timer and facia mounted failure

indication. The breakout noise level and power requirements shall be as detailed

by the unit manufacturer and as detailed in the ventilation equipment schedule.

The unit shall have low energy, high efficiency d.c. fan/motor assemblies with

sealed for life bearings.

The depth of the low profile unit shall not be greater than 185mm and shall

incorporate a low profile single point mounting bracket, with a pre-stressed

synthetic anti vibration strip.

The unit shall be constructed with two removable panels allowing full

maintenance access to all components.

To facilitate the interconnection of branch ducts the unit shall have multiple

spigot connections with integrated balancing dampers. Spigot connections

provided.

OPUSXBOX CONTROL OPTIONSAll versions shall have the following functions integrally mounted within the fan

unit on a purpose made PCB, all such components pre-wired and factory fitted

by the manufacturer: -

• Integral speed control on supply and extract.

• Integral background ventilation control/set point.

• Integral boost ventilation control/set point.

• Integral run on timer.

• Integral S/L terminal for boost from remote switch, e.g. lightswitch.

The fan unit will have a 5 year warranty.

Units shall be the OPUSXBOX as manufactured by Nuaire.

CONSULTANTS SPECIFICATION

Download specification from www.nuairegroup.com/specifications

029 2085 820040

XBOXER HEAT EXCHANGE UNITS

WIDE RANGE OF ENERGY EFFICIENT

HEAT RECOVERY UNITS WITH OPTIONAL INTEGRATED CONTROLS.

41


XBOXER HEAT EXCHANGE


nuaire.co.uk

HIGH EFFICIENCYHeat exchanger efficiency of up to 70%, alongside

high efficiency motors and backward curved

impellers.

ENERGY EFFICIENT CONTROLS Full Ecosmart control compatibility provides a

simple ‘plug & go’ control solution with BMS

interface and trickle and boost as standard.

NO CONTROL OPTION AVAILABLE Now available on all sizes.

SPACE SAVING SOLUTIONS Stacked or horizontal units, provide the most

effective solution.

QUIETEST SOLUTIONUnits are double skinned keeping breakout noise to

the lowest possible levels.

Optional acoustic enclosure available.

WIDE RANGEHorizontal, stacked and twinfan options available

up to 5m3/s.

QUICK COMMISSIONINGIntegrated supply and extract fan allows precise

system duty can be quickly and accurately set.

(Ecosmart models only).

EASY INSTALLATIONAll XB models (sizes 2 - 6) are supplied in one piece.

XBH and XBV models (sizes 6, 7, 8, 9 & 10) are

supplied in 3 sections (unless otherwise specified)

for delivery, ready for site assembly.

EASY MAINTENANCELeft or right hand options (in direction of airflow) –

will provide full access to components. For access

requirements contact Nuaire.

INTEGRATED SUMMER BYPASSOperates automatically via integrated factory set

temperature sensors.

WEATHERPROOF DETAILCan be factory or fitted on site, please

refer to page 53 for details.

Note: weather proof enclosure for XB2 -

XB5 is supplied as a separate component.

ADVANCED CONDENSATE REMOVALMiniature condensate pump option, for applications

where the distance to discharge is great. Pump also

enables a ‘micro bore’ type pipe to be used.

FILTER OPTIONSG4 fitted as standard. Higher grade integrated

filters available. Duct mounted ancillary also

available.

DX COIL OPTION AVAILABLEPlease contact Nuaire.

CONSTANT PRESSURE CONTROLAVAILABLEFor further details please contact Nuaire.

HEATER BATTERY OPTIONSUnit with integral battery, LPHW or electric.

ANCILLARIESA range of ancillaries are available

including manometers, bulkhead lights, view ports,

drain trays & traps.

For further details please contact Nuaire.

5 YEAR WARRANTYOn Ecosmart models for peace of mind.

No control models have a 2 year warranty. Contact

Nuaire for details.

BENEFITS

FEATURES INCLUDE:

Constant Pressure control option. Filter option. Bottom access available (XB2-5).

With electric heater. With LPHW.

029 2085 820042




PERFORMANCE - XBOXER HEAT EXCHANGE

XBOXER Horizontal sizes: (XB2-5) and (S1-XB and S6-XB) and stacked sizes (S2-5 XBV)

Fan

Stat

ic P

ress

ure

(Pa)

100

200

300

400

500

600

Air volume flow rate (m /s)3

0 720 1440 2160 2880

(m3/hr)

0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8

700

3

6

5

0

XB55

VType D


ISO 5801 2007AMCA 300

2

4

1

Fan

Stat

ic P

ress

ure

(Pa)

0

100

200

300

400

500

600


0 3600 7200 10800 14400 18000

0 1 2 3 4 5

(m3/hr)

6

998

7

Fullspeed

Fullspeed

80%speed

75%speed

VType D


ISO 5801 2007AMCA 300

10

7

Casing

Code descriptions

1. Xboxer (S1-XB or XB2-5 or S6XB or S2-5 XBV)

2. Curve ref. 3. Component layout

L = Left handR = Right hand

4. Type of heater battery fittedN= No heaterL = LPHWE = Electric

5. 1 = 1 row coil or 2 = 2 row coil6. Optional Acoustic Enclosure

(sizes XB2 - 5 only)*For coil options please see page 74.

XB2 - R L 2 AE| | | | | |1 2 3 4 5 6

Casing

Code descriptions

S6NC - XBV - R L 3 WP| | | | | | |1 2 3 4 5 6 7

1. Curve Ref. (S6-10XBH) or S6-10XBV 2. Ecosmart control as standard

NC = No control (sizes 1 - 10)3. Xboxer (XB/H or XBV)4. Component layout

L = Left handR = Right handHandings in direction of supply air.

5. Type of heater battery fittedN= No heaterL = LPHWE = Electric

6. 1 = 1 row coil or 2 = 2 row coil7. Optional weather proof kit*For coil options please see page 74.

XBOXER Horizontal sizes: (S6-10 XBH) and stacked sizes: (S6-10 XBV)

Note: refer to page 56 for XB55 horizontal unit for internal mounting only.





PERFORMANCE - XBOXER HORIZONTAL XB AND XBH AND STACKED XBV


Motor Start Full load Electric Heater LPHW Breakout

power current current Heater FLC Heater Induct Sound Power Levels dB re 1pW dBA Weight

Curve Code Phase watts (amps) (amps) (kW) (amps) (kW) 63 125 250 500 1K 2K 4K 8K @3m (Kg)

1 S1-XB-** 1 172 1.28 1.28 - 1.28 * Intake 60 55 54 47 41 37 33 29 33 75Supply 64 67 63 59 62 60 57 53Discharge 68 69 64 61 62 60 56 51Extract 61 60 56 48 41 37 32 28

2 XB2-** 1 270 1.7 1.7 4.5 18.7 * Intake 71 71 69 66 62 54 52 49 34 153Supply 64 64 64 62 57 57 40 28Discharge 67 70 65 69 60 59 56 49Extract 60 62 53 50 47 37 29 25

2 S2-XBV-** 1 270 1.7 1.7 4.5 18.7 * Intake 69 69 67 68 63 59 58 54 36 90Supply 67 65 63 57 55 58 44 33Discharge 67 70 65 67 61 55 55 51Extract 59 60 58 52 48 47 42 34







6 S6-XB-** 1 850 6 6 6 25 * Intake 82 86 80 68 67 64 57 51 47 212Supply 76 79 76 67 62 59 50 40Discharge 85 86 80 74 72 68 61 54Extract 77 80 73 64 59 55 47 44

6 S6-XBH-** 1 980 6 6 6 25 * Intake 76 79 76 67 62 59 50 40 39 5953 12 16.7 Supply 82 86 80 68 67 64 57 51

S6-XBV-** 1 980 6 6 6 25 * Discharge 77 80 73 64 59 55 47 443 12 16.7 Extract 85 86 80 74 72 68 61 54

7 S7-XBH-** 3 4.400 kW 9 9 27 38 * Intake 75 77 76 74 68 67 65 56 47 630S7-XBV-** Supply 81 81 83 84 78 77 75 66

Discharge 76 71 73 79 72 69 67 53Extract 80 83 86 79 74 75 73 69

8 S8-XBH-** 3 4.400 kW 9 9 54 75 * Intake 78 82 79 77 71 72 72 58 50 954S8-XBV-** Supply 84 87 86 87 81 82 82 68


9 S9-XBH-** 3 8.000 kW 17 17 - - * Intake 84 77 76 78 74 69 64 52 46 1517S9-XBV-** Supply 89 84 84 84 85 80 74 66


10 S10-XBH-** 3 11.000 kW 22 22 - - * Intake 86 79 81 80 75 71 66 56 48 1930S10-XBV-** Supply 92 87 90 87 86 82 75 70


Units are supplied c/w with 2 No.G4 filters as standard. F5 & F7 filters are available as integrated options on supply. Motor power and current loads are the total for both fans running together. Unit has a soft start function therefore the starting current is identical to the full load. ** Add relevant code for handing and heater type. * For details on coils, codes and selection please refer to page 74. Note: Size 6 - 1 phase = supply for fan, 3 phase = supply for electric heater battery.

029 2085 820044

DIMENSIONS AND CONFIGURATIONS

XBOXER Horizontal size S1-XB




DIMENSIONS (mm)

Code A B C D

S1-XB 1361 1000 340 250

Model shown: S1-XB-RL (right hand with LPHW).Model shown: S1-XB-LL (left hand with LPHW).

Model shown: S1-XB-LN (left hand with no heater). Model shown: S1-XB-RN (right hand with no heater).

Filter Heat Exchanger LPHW Coil

Filter

A

B

C

D

45nuaire.co.uk


XBOXER Horizontal sizes XB2, 3, 4, 5 and S6-XB





DIMENSIONS (mm)

Code A B C D

XB2 1700 1150 340 315

XB3 1700 1150 340 315

XB4 1700 1150 340 315

XB5 1700 1150 340 315

S6-XB 1700 1150 700 500

Model shown: XB2-5-LL (left hand with LPHW).

For weatherproof cowls refer to page 53

A

B

C

D

Model shown: XB2-5 and S6-XB-LE (left hand with electric heater).Model shown: XB2-5 and S6-XB-RE (right hand with electric heater).

Model shown: XB2-5 and S6-XB-LN (left hand with no heater). Model shown: XB2-5 and 6-XB-RN (right hand with no heater).

Model shown: XB2-5 and S6-XB-LL (left hand with LPHW). Model shown: XB2-5 and S6-XB-RL (right hand with LPHW).

029 2085 820046


XBOXER Horizontal size S6-XHB




DIMENSIONS (mm)

Code A B C D

S6-XBH 2800 2000 530 400

Model shown: S6-XBH-LL (left hand with LPHW).

Model shown: S6-XBH-RE (right hand with electric heater).Model shown: S6-XBH-LE (left hand with electric heater).

Model shown: S6-XBH-LN (left hand with no heater).

Note: Control box is integral.

Model shown: S6-XBH-RN (right hand with no heater).

Model shown: S6-XBH-LL (left hand with LPHW). Model shown: S6-XBH-RL (right hand with LPHW).

A

B

C

D

Filter

LPHWSupply Fan Heat Exchanger

Extract Fan

Filter

For weatherproof cowls refer to page 53

47nuaire.co.uk


XBOXER Horizontal sizes S7 and 8-XHB





DIMENSIONS (mm)

Code A B C D E F G H

S7-XBH 2600 1600 800 1200 600 800 600 350

S8-XBH 3800 2000 1000 2200 600 1000 600 450

Model shown: S7-8-XBH-LL (left hand with LPHW).

Model shown: S7-8-XBH-RE (right hand with electric heater).Model shown: S7-8-XBH-LE (left hand with electric heater).

Model shown: S7-8-XBH-LN (left hand with no heater). Model shown: S7-8-XBH-RN (right hand with no heater).

Model shown: S7-8-XBH-LL (left hand with LPHW). Model shown: S7-8-XBH-RL (right hand with LPHW).

30

3030

30

A

B

C

D

E

F

GH

Filter

LPHWSupply Fan

Heat Exchanger

Control

Extract Fan

Filter

029 2085 820048


XBOXER Horizontal sizes S9 and 10-XHB




DIMENSIONS (mm)

Code A B C

S9-XBH 4600 2600 1000

S10-XBH 4600 2600 1300

Model shown: S9/10-XBH-LL (left hand with LPHW).

Model shown: S9/10-XBH-LN (left hand with no heater). Model shown: S9/10-XBH-RN (right hand with no heater).

Model shown: S9/10-XBH-LL (left hand with LPHW). Model shown: S9/10-XBH-RL (right hand with LPHW).

30

3030

30

A

B

CFilter

LPHWSupply Fan Heat ExchangerControl

Extract Fan

Filter

49nuaire.co.uk


XBOXER Stacked sizes S2, 3, 4 and 5-XBV





DIMENSIONS (mm)

Code A B C D

S2-XBV 2500 550 820 250

S3-XBV 2500 550 820 250

S4-XBV 2500 550 820 250

S5-XBV 2500 550 820 250

Model shown: S2-5-XBV-LL (left hand with LPHW).

Model shown: S2-5-XBV-RE (right hand with electric heater).Model shown: S2-5-XBV-LE (left hand with electric heater).

Model shown: S2-5-XBV-LN (left hand with no heater). Model shown: S2-5-XBV-RN (right hand with no heater).

Model shown: S2-5-XBV-LL (left hand with LPHW). Model shown: S2-5-XBV-RL (right hand with LPHW).

A

B

CD

Filter Control Box Heat Exchanger

LPHW

Extract Fan

FilterSupply Fan

029 2085 820050


XBOXER Stacked size S6-XBV




DIMENSIONS (mm)

Code A B C D

S6-XBV 2000 954 1060 400

Model shown: S6-XBV-LL (left hand with LPHW).

Model shown: S6-XBV-RE (right hand with electric heater).Model shown: S6-XBV-LE (left hand with electric heater).

Model shown: S6-XBV-LN (left hand with no heater).

Note: control box is integral.

Model shown: S6-XBV-RN (right hand with no heater).

Model shown: S6-XBV-LL (left hand with LPHW). Model shown: S6-XBV-RL (right hand with LPHW).

AB

CD

LPHW connections

Filter Fan + Control Heat Exchanger

LPHW

Supply Fan+ Control

Filter

51nuaire.co.uk


XBOXER Stacked sizes S7 and 8-XBV





DIMENSIONS (mm)

Code A B C

S7-XBV 2600 800 1600

S8-XBV 3800 1000 2000


Model shown: S7-8-XBV-RE (right hand with electric heater).Model shown: S7-8-XBV-LE (left hand with electric heater).

Model shown: S7-8-XBV-LN (left hand with no heater). Model shown: S7-8-XBV-RN (right hand with no heater).


B

30

30

A

C


LPHW

Supply Fan+ Control

Filter

029 2085 820052


XBOXER Stacked sizes S9 and 10-XBV




DIMENSIONS (mm)

Code A B C D E

S9-XBV 4300 1300 2000 479 557

S10-XBV 4300 1300 2600 638 638


Model shown: S9-10-XBV-LN (left hand with no heater).

Note: control box is integral.

Model shown: S9-10-XBV-RN (right hand with no heater).


B

30

30

A

C

D

E


LPHW

Supply Fan +Control

Filter

53nuaire.co.uk

FACTORY FITTED WEATHERPROOF KIT

Horizontal (size 6 - 10)



XBOXER WEATHERPROOF KITS


AB

Up to100mm

WEATHERPROOF KIT FOR ON-SITE FITTING

Stacked (size 2 - 10)

Horizontal (size 6 - 10)

Code descriptions

1. Size of XBOXER unit 2. XBH = Horizontal unit

XBV = Stacked unit3. LE = Left hand, electric

RE = Right hand, electricLL = Left hand, LPHW

RL = Right hand, LPHWLN = Left hand, no heaterRN = Right hand, no heater

4. Weatherproof kit fitted to unit and delivered to site

S7 - XBH - LE WP| | | |1 2 3 4

Code descriptions

1. SXBH = Horizontal unitSXBV = Stacked unit

2. Size of XBOXER unit3. LE = Left hand, electric

RE = Right hand, electricLL = Left hand, LPHW

RL = Right hand, LPHWLN = Left hand, no heaterRN = Right hand, no heater

4. Weatherproof kit for on-sitefitting

SXBH - 7 - LE WP| | | |1 2 3 4

Note: Dimension A = equals the length of XBOXER unit selected fromthis brochure.B = equals the width of XBOXER unit selected from this brochure. Height of weatherproof kit is up to 100mm.For twin fan Weather Kit use codes SXB - HTWP (Horizontal sizes 2 - 5) and SXB - VTWP (Stacked sizes 2 - 5).

DIMENSIONS FOR WEATHERPROOF KITS

Stacked (size 2 - 10)

External access both sides

C

D

E

View from side

View from top

A

Base frame

Ducts to treated space (by others)

Vermin mesh guard (can be removed and cut for duct access).

View from end

B

029 2085 820054

WEATHER PROTECTION FOR XBOXER HORIZONTAL UNIT

Sizes XB2 - 5 and XB6


XBOXER WEATHER PROTECTION


DIMENSIONS (mm)

Unit Code Unit size A B C D E Weight (Kg)

SXB-WP 2 - 5 2400 1400 530 100 1800 65

SXB6-WP 6 2400 1400 880 100 1800 79

DIMENSIONS (mm)

• Weatherproof construction

• Can be retro fitted on site (Please contact Nuaire)

• Complete with bird/vermin mesh and internal airflow divider

• Available in 2 sizes

Note: The enclosure above is supplied as a separate component as standard.

Code example for on-site fitting

SXB - WP

Code example for factory fitting

XB2 - LEWP

DIMENSIONS (mm)

Unit Code Unit size A B C Weight (Kg)

XB2-5 2 - 5 1800 1450 470 298

55nuaire.co.uk

ACOUSTIC ENCLOSURE FOR XBOXER HORIZONTAL UNIT

Sizes XB2 - 5



XBOXER ACOUSTIC ENCLOSURE


The additional breakout reduction of a standard 25mm doubleskinned pentapost enclosure (close coupled to the unit inside) is as shown below.

BREAKOUT REDUCTION

Frequency (Hz)

125 250 500 1K 2K 4K 8KSound reductionindex Db 8 14 21 23 24 23 19

It is recommended the Acoustic Enclosure (see code example below) be ordered with theXBOXER unit and fitted at the factory.

Code example for factory fitting

XB2 - RL - AE

A B

C

029 2085 820056

XB55 HEAT EXCHANGE UNITS

ENERGY EFFICIENT HEAT RECOVERY UNITS WITH SPECIALIST

ACOUSTIC TREATMENT PROVIDING LOW NOISE LEVELS.

57nuaire.co.uk




QUIETEST SOLUTIONUnits are double skinned with specialist acoustic

treatment keeping breakout noise to the lowest

possible levels. Designed to meet BB101 & BB93.

ENERGY EFFICIENT CONTROLSFull Ecosmart control compatibility provides a



SPACE SAVING SOLUTION – LOWPROFILEInstalled horizontally where space is a premium,

depth is 470mm.

GUARANTEED LOW COST VENTILATION& HEATINGOptional full re-circulation on start up ensures that

the room is quickly and efficiently heated.



(Ecosmart models only.

NO CONTROL OPTION AVAILABLEAllowing for controls by others for integration into

a specific BMS system.

ANCILLARIESA range of ancillaries are available including room

mounted CO2 temperature sensors, and matched

silencers.



will provide full access to components.

For access requirements contact Nuaire.






FILTER OPTIONSG4 fitted as standard. Higher grade integrated filters

available. Duct mounted ancillary also available.

DX COIL OPTION AVAILABLEPlease contact Nuaire.

CONSTANT PRESSURE CONTROLAVAILABLEFor further details please contact Nuaire.

HEATING COIL OPTIONSUnit supplied with integral electric , LPHW or

cooling coil variations.

5 YEAR WARRANTYOn Ecosmart models for peace of mind.

No control models have a 2 year warranty.

Contact Nuaire for details.

BENEFITS

FEATURES INCLUDE:

Integrated supply and extract fans. CO2 Sensors: ES-CO2RM Constant Pressure control option. Filter option.

(for Ecosmart) and CO2RM

(for non-Ecosmart).

029 2085 820058

PERFORMANCE

XB55 Heat Recovery Unit




ELECTRICAL & SOUND

900

800

700

600

500

400

300

200

100

0

Fan

Stat

ic P

ress

ure

(Pa)

0 0.1 0.2 0.3 0.4 0.5 0.6 0.7


VType D


ISO 5801 1997AMCA 300

Product Electrical data Summary of sound power levels Free field

Code Freq/ Hz hemisherical

63 125 250 500 1K 2K 4K 8K rad. dBA@3m

FLC/ A SC/ A Input power/kW Operation Induct Sound power levels

XB55-**** 6.9 6.9 1.1 Fresh air intake Induct Inlet 83 81 81 73 66 60 60 61

Supply Induct Outlet 83 77 74 65 59 55 47 36

Extract Induct Inlet 80 74 75 64 63 57 47 37

Discharge Induct Outlet 87 81 85 71 72 70 66 61

Breakout 71 65 60 49 45 42 40 26 38

Casing

Code descriptions

1. XBOXER 2. 55 = unit 3. Ecosmart as standard

NC = No control4. Component layout

L = Left handR = Right handHandings in direction of supply air

5. Type of heater batteryN = No heaterL = LPHWE = Electric

6. 1 = 1 row coil

XB55NC - L L 1| | | | | |1 2 3 4 5 6

XB55 - L version

Air volume flow rate at 0.6m3/s Air volume flow rate at 0.4m3/s

Water Water Coil Air Air kW Water Water Water Water Coil Air Air kW Water Water in out Ref on off flow l/s dp KPA in out Ref on off flow l/s dp KPA

82 71 L1 -3 18 17 0.37 19 82 71 L1 -3 23 13.5 0.30 13.582 71 L1 3 23 15 0.34 16 82 71 L1 3 27 12 0.27 1182 71 L1 9 27 13.8 0.31 13.5 82 71 L1 9 31 11 0.25 9 82 71 L1 15 32 12 0.28 11 82 71 L1 15 35 10 0.22 7.4

80 60 L2 -3 15 14 0.17 4.8 80 60 L2 -3 19 11.6 0.14 3.2 80 60 L2 3 19 13 0.16 3.9 80 60 L2 3 23 10.5 0.13 2.6 80 60 L2 9 24 11.5 0.14 3.2 80 60 L2 9 27 9 0.11 2.1 80 60 L2 15 28 10 0.12 2.5 80 60 L2 15 31 8 0.10 1.7

60 40 L2 -3 9 9.6 0.12 2.3 60 40 L2 -3 12 7.8 0.09 1.6 60 40 L2 3 14 8.2 0.10 1.8 60 40 L2 3 16 6.7 0.08 1.2 60 40 L2 9 18 7 0.08 1.3 60 40 L2 9 20 5.6 0.07 0.960 40 L2 15 22 5.6 0.07 0.9 60 40 L2 15 24 4.5 0.05 0.6

XB55 - COIL INFORMATION

*Please note above tables are based on indicative selections. For more specific selection, contact Nuaire.

XB55 - L2 version

Air volume flow rate at 0.2m3/s

Water Water Coil Air Air l/h Water Water in out Ref on off kW flow l/s dp KPA

82 71 L3 -3 31 13.8 0.31 20 82 71 L3 3 52 12.6 0.28 17 82 71 L3 9 54 11.4 0.25 14 82 71 L3 15 56 10 0.23 12

80 60 L4 -3 44 12.5 0.15 5.7 80 60 L4 3 47 10 0.14 4.7 80 60 L4 9 49 10 0.12 480 60 L4 15 51 9 0.11 3

60 40 L4 -3 30 8.8 0.11 3 60 40 L4 3 33 7.7 0.09 2.4 60 40 L4 9 35 6.6 0.08 1.83 60 40 L4 15 37 5.5 0.07 1.3

Conn

ection size

15mm

15mm

15mm

Note: Air performance shown is for unit with "high duty" DX coil.

59nuaire.co.uk

DIMENSIONS (MM) - XB55 UNIT, MATCHING ATMOSPHERIC & ROOM SIDE SILENCERS





1560

Intake Filter Supply Fan

Plate Heat Exchanger

Heating or cooling coil

Bypass Damper

Face Damper

Extract Filter

Intake

Discharge Extract

Supply

Extract Fan

Face Damper

470

1900

1560

450

400 sq

Plan view

Side view

End view XB55 unit

470

Control module

16001000

1000

Note: The drawings above include optional atmospheric and room side silencers for information purposes.

Mounting brackets located on each side of the units

25

Optional room side silencerOptional atmospheric silencer XB55 unit

720

Optional room side silencerOptional atmospheric silencer XB55 unit

XB55 - SILENCER INFORMATION

Silencer Type Application Frequency/Hz

Room Side Atmospheric Side 63 125 250 500 1K 2K 4K 8K

Attenuation/db

Matched Supply/Extract 7 14 17 18 21 19 19 20

Matched Intake/Exhaust 5 9 11 12 11 11 11 16

Conventional Supply/Extract 11 12 26 27 25 21 24 29

Conventional Intake/Exhaust 8 12 20 29 32 30 29 23

Silencer Type Application Air Volume flow rate/cu.m/s

Room Side Atmospheric Side 0.1 0.2 0.3 0.4 0.5 0.6

Fixed Fixed Resistance to Airflow/Pa

Matched Intake 1 5 10 18 26 41

Matched Supply 1 5 12 22 34 49

Matched Extract 2 7 16 29 45 65

Matched Exhaust 2 6 14 24 35 54

Conventional Intake 4 17 39 69 108 156

Conventional Supply 2 9 20 35 55 79

Conventional Extract 5 10 49 88 128 167

Conventional Exhaust 23 37 52 67 82 96

Note: The values quoted are based on test undertaken at NAL test facilities and show the influence of system effect on unit. Note: Contact Nuaire for project specific silencer applications. Note: All insertion losses are dynamic for a flow rate of 0.5cu.m/s.

The resistance to airflow details provided are pressure drops for the individual duct connections to the unit.

029 2085 820060


XB55 WIRING


230V - 50Hz Supply

Local isolator (by others)

L

N

N

L

All inter-connections between circuit boards, blowers and sensors are made at the factory. This diagram only shows the essential field wiring points for clarity.

Damper Connections Heat Demand Signal

Run Signal

Fault Signal

Damper Connections Run Signal

Fault Signal

NET connections for Ecosmart devices

Min Max SL run on

Trickle Test

0 1

Link wire see note*

ES-CO2Connection

BMSInputSignal

0-10

V

0V

Ecosmart PwrStandbyFan 1Fan 2HeatingCoolingFaultFrostTXRX

Extract

N E L SL DP

CL N RET

HeatDemand Run Fault


Min Max SL run on

Trickle Test

0 1

Link wire see note*

ES-CO2Connection

BMSInputSignal

0-10

V

0V


Supply

N E L SL DP

CL N RET


*Remove link wire if switched live signal, an enabler or BMS signal is connected.

Heat Demand Signal

XB55 WITH ECOSMART FAN ONLY CONTROL

230V - 50Hz Supply


L

N

N

L


Fault Signal


Min Max SL run on

Trickle Test

0 1

Link wire see note*

ES-CO2Connection

BMSInputSignal

0-10

V

0V


Extract

N E L SL DP

CL N RET



Run Signal

Fault Signal


Min Max SL run on

Trickle Test

0 1

Link wire see note*

ES-CO2Connection

BMSInputSignal

0-10

V

0V


Supply

N E L SL DP

CL N RET


Heater Temperature Setting

Co15

20 25

30

Inlet OutletSensor Sensor

Cool FrostDemand Alarm DX-1 DX-2

Cool DXSensor Coil



Heat Demand Signal

XB55 WITH ECOSMART FAN AND LPHW COIL CONTROL



XB55 WIRING


230V - 50Hz Supply


L

N

N

L


Run Signal

Fault Signal


Fault Signal


Min Max SL run on

Trickle Test

0 1

Link wire see note*

ES-CO2Connection

BMSInputSignal

0-10

V

0V


Extract

N E L SL DP

CL N RET



Min Max SL run on

Trickle Test

0 1

Link wire see note*

ES-CO2Connection

BMSInputSignal

0-10

V

0V


Supply

N E L SL DP

CL N RET



Co

15 20 25

30



Heat Demand Signal

XB55 WITH ECOSMART CONTROL AND ELECTRIC HEATER

029 2085 820062


XB55 WIRING


WIRING - FOR UNITS SUPPLIED WITHOUT ECOSMART CONTROL

The wiring illustrations below are for the fans, bypass damper and electric heater

for units without control. All wiring is terminated in junction boxes fitted to the

specified side of the unit.

It is the installer’s responsibility to select and fit the appropriate control

equipment to produce the desired output.

Note that any heating/cooling coils fitted are supplied

without control valve and actuator.

EART

H

NEU

TRA

L

LIV

E

FAN 1

Isolator by others

N L

N L230V-50Hz

Fuse

3A (T)

XB55 Fan wiring. Two per unit i.e. one for each fan.

Isolator by others

N L

N L230V-50Hz

N L230V-50Hz

N L

Isolator by others

Bypa

ss D

ampe

rPo

wer

to

open

Aut

o C

lose

Elec

tric

Hea

ter

Ther

mal

Ove

rloa

d

Con

nect

ion

to

Elec

tric

Ele

men

ts

XB55 with electric heater, heat exchanger,bypass damper and electric heater wiring.

XB55 Fan only or with LPHW coil, heat exchanger bypass damper wiring.

N L230V-50Hz

Isolator by others

Bypa

ss D

ampe

rPo

wer

to

open

Aut

o C

lose

N L



XB55


XB55

OPERATIONThe supply and extract ventilation unit shall be as indicated on the drawings. The

heat recovery ventilation unit shall ensure that the rooms design conditions are

maintained by the effective and continuous control of the integrated heat

exchanger matrix, heat exchanger bypass, and the heating/cooling coils.

The ventilation unit shall automatically vary the ventilation rate in the classroom

dependant upon the signals received from the interconnected sensors. When

signals are received, the fan shall vary its speed proportionally until the desired

level is met.




The unit shall be the XB55-**** as manufactured by Nuaire.

UNIT SPECIFICATIONThe heat recovery ventilation unit together with the room side silencer,

atmospheric silencer with optional bolt on mixing box shall have a maximum

depth of 470mm.

The ventilation unit and attenuators shall all be manufactured utilising the latest

specialist acoustic treatment to ensure that the noise impact on the room

occupants is minimal and in accordance with the specification. They shall be

supplied complete with an integrated mounting system.

The unit shall have a high efficiency aluminium heat exchanger matrix with a

thermal efficiency of up to 70%. The heat exchanger matrix shall be protected

by G4 grade pleated filters on supply and extract; the filters shall be split to

facilitate removal. The heat exchanger shall incorporate a full automatic bypass

arrangement with actuator and pre-programmed control logic.

The unit shall have low energy, high efficiency EC fan/motor assemblies with

sealed for life bearings with an anticipated working life of 70,000 hours (L10)

and shall be suitable for single phase supply.

Impellers shall be high efficiency centrifugal type.

The heating/cooling coil shall be sized to meet the room specific requirements.

The control for the coils shall be fully integrated and shall maintain a constant

off coil temperature matched to meet the room’s requirements.

The ventilation unit shall comprise the following:-

Supply and extract fans, high efficiency heat exchanger matrix, supply and

extract filters, full automatic heat exchanger bypass, heating/cooling coil &

condensate drip tray (an additional condensate drip tray is provided if a cooling

coil is required).

Matching atmospheric & room side silencer can also be provided.

Atmospheric silencer can be provided with an optional mixing box arrangement.

The unit shall be constructed with removable panels allowing full maintenance

access from both sides depending on specific handing (access handing to be

confirmed and verified on site prior to order).

The removable panels shall provide access to the following:-

• Supply and extract fan.

• Supply & extract filter.

• Heater battery temperature adjustment (where included).

• Mixing box (where included)

ECOSMART CONTROL OPTIONprovides the facility for energy saving via an intelligent stand-alone AHU

function, or for convenient integration with the client BMS with minimal

coordination requirement. The factory fitted control includes:- integral infinitely

variable speed / duty control for the supply and extract fans, with independent

minimum and maximum adjustment for accurate commissioning.

A run on timer and “background” ventilation function. The unit is provided as is

unit status indication, run and fail relay and interface connection for Ecosmart

sensors/enablers and system dampers.

The Ecosmart control module can additionally be pre-configured to provide the

following integrated BMS interfaces.

• 0 - 10 volt contacts to provide a full BMS interface. This will enable the

following functions:- Switch the unit ON/OFF. Variable speed / duty control

Switch from low speed to high speed, enable heating/cooling


system status.

NO CONTROL OPTIONALUnit provides side access to direct supply and extract fan motor wiring (terminal

boxes) for interface to custom built control panels. For this option, no sensors are

fitted to the unit, but note that in the case of plate heat exchanger units, the

bypass damper actuator is included, and for thermal wheel units, the wheel

motor and drive unit is included.

The unit shall be the XB55-**** as manufactured by Nuaire.


029 2085 820064

XBOXER TWINFAN HEAT EXCHANGE UNITS

RUN AND STANDBY HEAT RECOVERY SOLUTION

WITH INTEGRATED CONTROLS.

65nuaire.co.uk

HIGH EFFICIENCYHeat exchanger efficiency of up to 70%, alongside

high efficiency motors and backward curved

impellers.

ENERGY EFFICIENT CONTROLS Full Ecosmart control compatibility provides a



SPACE SAVING SOLUTIONStacked option reduces over space requirements

and the horizontal units depth from only 340mm

deep.

QUIETEST SOLUTIONUnits are double skinned keeping breakout noise to

the lowest possible levels.

GUARANTEED VENTILATIONEcosmart units with auto-change over and duty

share.

WIDE RANGE12 options available up to 1.7m3/s.



EASY INSTALLATIONAll XB twin fans are supplied in one piece plus 2nd

extract fan. All XBV twin fans are supplied in 3

sections plus extract fan for delivery ready for site

assembly.


will provide full access to components -

recommended clear space should be full width of

vertically stacked units.



WEATHERPROOF DETAILCan be factory or fitted on site, please

refer to page 00 for details.




FILTER OPTIONSG4 fitted as standard. Higher grade

integrated filters available or as a duct mounted

ancillary.

DX COIL OPTIONPlease contact Nuaire.

HEATER BATTERY OPTIONSUnit with integral battery, LPHW or electric.

ANCILLARIESA range of ancillaries are available including

manometers, bulkhead lights, view ports, drain trays

& traps.


5 YEAR WARRANTYFor peace of mind.

BENEFITS

FEATURES INCLUDE:

Supply and extract commissioning. Bypass damper. Stacked unit.

OPTIONS INCLUDE HORIZONTAL & STACKED UNITS:

Removable side access. Condensate pump (optional). Horizontal unit.


XBOXER TWINFAN HEAT EXCHANGE


029 2085 820066

PERFORMANCE - XBOXER HEAT EXCHANGE TWINFANS

XBOXER SIZES: S2T-S6T-XBV stacked, XB2-5T and S6T-XB horizontal twinfans




(m3/hr)

Fan

Stat

ic P

ress

ure

(Pa)

0

100

200

300

400

500

600


0 720 1440 2160 2880

0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8

700

4

6

5

3

2

VType D


ISO 5801 2007AMCA 300

Fan

Stat

ic P

ress

ure

(Pa)

0

100

200

300

400

500

600

0 0.5 1.0 1.5 2.0

700

VType D


ISO 5801 2007AMCA 300

8

Casing

CasingXBOXER S8T-XBV stacked and S8T-XBH horizontal twinfans

Code descriptions

1. Xboxer (XB2-5T or S6T) 2. Curve Ref.3. Twinfan4. Component layout


5. Type of heater battery fittedN = No heaterL = LPHWE = Electric

6. 1 = 1 row coil or 2 = 2 row coil*Please refer to page 74 for coils

XB2T - R N 3| | | | | |1 2 3 4 5 6

Code descriptions

1. Curve Ref. 2. Twinfan3. XBV = vertical unit or XBH = horizontal unit4. Component layout


5. Type of heater battery fittedN = No heaterL = LPHWE = Electric

6. 1 = 1 row coil or 2 = 2 row coil*Please refer to page 74 for coils

S8T - XBH - R N 3| | | | | |1 2 3 4 5 6

67nuaire.co.uk

PERFORMANCE - XBOXER HEAT EXCHANGE TWINFANS - STACKED XBV AND HORIZONTAL XB & XBH






Motor Start Full load Electric Heater LPHW Breakout

power current current Heater FLC Heater Induct Sound Power Levels dB re 1pW dBA Weight

Curve Code Phase watts (amps) (amps) (kW) (amps) (kW) 63 125 250 500 1K 2K 4K 8K @3m (Kg)

2 XB2T-** 1 270 1.7 1.7 4.5 18.7 * Intake 69 69 67 68 63 59 58 54 36 187

S2T-XBV-** Supply 67 65 63 57 55 58 44 33 220

Discharge 67 70 65 67 61 55 55 51

Extract 59 60 58 52 48 47 42 34

3 XB3T-** 1 410 1.9 1.9 4.5 18.7 * Intake 73 73 71 72 67 63 62 58 38 187

S3T-XBV-** Supply 71 69 67 61 59 62 48 37 220

Discharge 71 74 69 71 65 59 59 55

Extract 63 64 62 56 52 51 46 38

4 XB4T-** 1 423 2.8 2.8 4.5 18.7 * Intake 74 73 69 72 70 65 63 58 39 187

S4T-XBV-** Supply 67 63 62 57 57 57 50 41 220

Discharge 74 73 70 72 71 64 62 58

Extract 66 61 60 55 55 55 50 39

5 XB5T-** 1 690 3.6 3.6 4.5 18.7 * Intake 78 77 73 76 74 69 67 62 43 187

S5T-XBV-** Supply 71 67 66 61 61 61 54 45 220

Discharge 78 77 74 76 75 68 66 62

Extract 70 65 64 59 59 59 54 43

6 S6T-XB-** 1 850 6 6 6 25 * Intake 82 86 80 68 67 64 57 51 47 230

Supply 76 79 76 67 62 59 50 40

Discharge 85 86 80 74 72 68 61 54

Extract 77 80 73 64 59 55 47 44

6 S6T-XBV-** 1 980 6 6 6 25 * Intake 76 79 76 67 62 59 50 40 39 322

3 12 16.7 Supply 82 86 80 68 67 64 57 51

Discharge 77 80 73 64 59 55 47 44

Extract 85 86 80 74 72 68 61 54

8 S8T-XBH-** 3 4.35 kW 9 9 54 75 * Intake 79 83 80 78 72 73 73 59 50 790

S8T-XBV-** Supply 85 88 87 88 82 83 83 69 50 858

Discharge 80 77 77 83 76 75 75 56

Extract 84 90 90 83 78 81 81 72

Units are supplied c/w with 2 No.G4 filters as standard. F5 & F7 filters are available as integrated options on supply. Motor power and current loads are the total for both fans running together. Unit has a soft start function therefore the starting current is identical to the full load. ** Add relevant code for handing and heater type. * For details on coils, codes and selection please refer to page 74. Note: Size 6 - 1 phase = supply for fan, 3 phase = supply for electric heater battery.

029 2085 820068


XBOXER Horizontal twinfan sizes XB2-5T




DIMENSIONS (mm)

Code A B C D Weight ( kg)

XB2T 2300 1150 350 315 187

XB3T 2300 1150 350 315 187

XB4T 2300 1150 350 315 187

XB5T 2300 1150 350 315 187

Model shown: XB2-5T-RE (right hand with electric heater).Model shown: XB2-5T-LE (left hand with electric heater).

Model shown: XB2-5T-LN (left hand with no heater). Model shown: XB2-5T-RN (right hand with no heater).

Model shown: XB2-5T-LL (left hand with LPHW). Model shown: XB2-5T-RL (right hand with LPHW).

A

B

D

C

Model shown: XB2-5T-LN (left hand with no heater).

69nuaire.co.uk


XBOXER Horizontal twinfan size S6T-XB





DIMENSIONS (mm)

Code A B C D Weight (kg)

S6T-XB 2300 1150 700 500 230

Model shown: S6T-XB-LL (left hand with LPHW).

Model shown: S6T-XB-RE (right hand with electric heater).Model shown: S6T-XB-LE (left hand with electric heater).

Model shown: S6T-XB-LN (left hand with no heater). Model shown: S6T-XB-RN (right hand with no heater).

Model shown: S6T-XB-LL (left hand with LPHW). Model shown: S6T-XB-RL (right hand with LPHW).

AB

C

D

22mm dia. condensate drain.15mm dia. connectionfor XB2-5.

FilterMain FanStandby Fan Heat Exchanger ControlSupply Fan Filter

029 2085 820070


XBOXER Horizontal twinfans size S8T-XB




DIMENSIONS (mm)


S8T-XBH 4800 2000 1000 1000 790

Model shown: S8T-XB-LL (left hand with LPHW).

AB

C

D

22mm dia. condensate drain.

FilterMain FanStandby Fan Heat Exchanger ControlSupply Fan Filter

Model shown: S8T-XBH-RE (right hand with electric heater).Model shown: S8T-XBH-LE (left hand with electric heater).

Model shown: S8T-XBH-LN (left hand with no heater). Model shown: S8T-XBH-RN (right hand with no heater).

Model shown: S8T-XBH-LL (left hand with LPHW). Model shown: S8T-XBH-RL (right hand with LPHW).

71nuaire.co.uk


XBOXER Stacked twinfans sizes 2, 3, 4 and S5T-XBV





DIMENSIONS (mm)


S2T-XBV 2500 550 820 250 220

S3T-XBV 2500 550 820 250 220

S4T-XBV 2500 550 820 250 220

S5T-XBV 2500 550 820 250 220

Model shown: S2T-XBV-LL (left hand with LPHW).

A

B

CD

Model shown: S2-5T-XBV-RE (right hand with electric heater).Model shown: S2-5T-XBV-LE (left hand with electric heater).

Model shown: S2-5T-XBV-LN (left hand with no heater). Model shown: S2-5T-XBV-RN (right hand with no heater).

Model shown: S2-5T-XBV-LL (left hand with LPHW). Model shown: S2-5T-XBV-RL (right hand with LPHW).

029 2085 820072


XBOXER Stacked twinfans size S6T-XBV




DIMENSIONS (mm)


S6T-XBV 2000 954 1060 342 322


AB

C

D

Filter Run Fan + Control Standby Fan Heat Exchanger

LPHW

Supply Fan + Control

Filter

Model shown: S2-5T-XBV-RE (right hand with electric heater).Model shown: S2-5T-XBV-LE (left hand with electric heater).

Model shown: S2-5T-XBV-LN (left hand with no heater). Model shown: S2-5T-XBV-RN (right hand with no heater).

Model shown: S2-5T-XBV-LL (left hand with LPHW). Model shown: S2-5T-XBV-RL (right hand with LPHW).

73nuaire.co.uk


XBOXER Stacked twinfans size S8T-XBV





DIMENSIONS (mm)


S8T-XBV 4800 1000 2000 1000 858


A

B

CD

Model shown: S8T-XBV-RE (right hand with electric heater).Model shown: S8T-XBV-LE (left hand with electric heater).

Model shown: S8T-XBV-LN (left hand with no heater). Model shown: S8T-XBV-RN (right hand with no heater).

Model shown: S8T-XBV-LL (left hand with LPHW). Model shown: S8T-XBV-RL (right hand with LPHW).

029 2085 820074


XBOXER COILS FOR LPHW UNITS


*Please note: above tables are based on indicative selections. For more specific selection, contact Nuaire.029 2085 8200

82/71

80/60

60/40

82/71

80/60

60/40

82/71

80/60

60/40

82/71

80/60

60/40

82/71

80/60

60/40

Conn

ection size

1.25”

15mm

15mm

Conn

ection size

15mm

15mm

15mm

Conn

ection size

15mm

15mm

15mm

Conn

ection size

22mm

15mm

15mm

Conn

ection size

22mm

15mm

15mm

XBOXER Size 1, 2, 3, 4 and 5 1 ROW Air Volume Flow rate (m3/s) 0.4 0.3 0.2 0.1Water Heat Air Off Water flow Water Heat Air Off Water flow Water Heat Air Off Water flow Water Heat Air Off Water flow Water on/off Air On Output C rate dp Output C rate dp Output C rate dp Output C rate dpC C (kW) C (l/s) (kPa) (kW) C (l/s) (kPa) (kW) C (l/s) (kPa) (kW) C (l/s) (kPa)

-3 6.3 10 0.14 6.9 5.5 12 0.122 5.2 4.3 15 0.095 3.3 2.5 18 0.056 1.13 5.6 15 0.126 5.6 5.1 17 0.113 4.5 4 19 0.088 2.83 2.3 22 0.052 0.959 5 19 0.115 4.7 4.7 22 0.104 3.9 3.7 24 0.082 2.46 2.2 27 0.048 0.8115 4.6 24 0.104 3.9 4.2 26 0.095 3.3 3.4 29 0.075 2.06 2 31 0.044 0.68

-3 6.1 9.7 0.075 1.98 4.8 10 0.058 1.18 3.6 12 0.044 0.71 2.15 15 0.026 0.243 4.7 13 0.058 1.18 4.3 15 0.052 0.94 3.3 17 0.041 0.61 2 19 0.024 0.209 4.2 18 0.052 0.95 3.8 19 0.047 0.77 3 21 0.037 0.50 1.8 24 0.022 0.1715 3.7 23 0.046 0.74 3.4 24 0.042 0.62 2.7 26 0.033 0.40 1.6 28 0.019 0.13

-3 4.4 6.2 0.054 1.03 4 8 0.048 0.80 3.1 10 0.037 0.50 1.6 10 0.019 0.133 2.9 9 0.035 0.43 2.6 10 0.032 0.36 2 11 0.025 0.23 1.1 12 0.014 0.079 2.4 14 0.029 0.30 2.2 15 0.026 0.24 1.7 16 0.02 0.15 1 17 0.013 0.0615 1.9 19 0.023 0.19 1.7 20 0.021 0.15 1.3 20 0.016 0.09 0.9 22 0.012 0.05

XBOXER Size 1, 2, 3, 4 and 5 2 ROWAir Volume Flow rate (m3/s) 0.4 0.3 0.2 0.1Water Heat Air Off Water flow Water Heat Air Off Water flow Water Heat Air Off Water flow Water Heat Air Off Water flow Water on/off Air On Output C rate dp Output C rate dp Output C rate dp Output C rate dp

C C (kW) C (l/s) (kPa) (kW) C (l/s) (kPa) (kW) C (l/s) (kPa) (kW) C (l/s) (kPa)-3 14 26 0.32 14.5 12.5 31 0.278 11.5 9.5 36 0.212 7.1 5.4 41 0.121 2.743 13 30 0.292 12.5 11,5 35 0.257 10 8.8 39 0.196 6.3 5 44 0.112 2.409 12 33 0.267 10.7 10.5 38 0.236 8.6 8 42 0.18 5.4 4.6 47 0.103 2.0815 10.8 37 0.242 9 9.6 41 0.214 7.3 7.4 45 0.16 4.6 4.2 50 0.094 1.78

-3 12 22 0.149 3.9 10.7 26 0.13 3.2 8 30 0.1 1.98 4.7 35 0.057 0.763 11 26 0.135 3.3 9.7 30 0.119 2.72 7.5 33 0.091 1.69 4.3 38 0.052 0.659 9.9 29 0.12 2.74 8.8 33 0.107 2.27 6.7 36 0.082 1.41 3.9 41 0.047 0.5515 8.8 33 0.11 2.36 7.8 36 0.095 1.85 6 39 0.073 1.16 3.5 43 0.042 0.45

-3 8 13 0.097 1.91 7 16 0.085 1.53 5.3 19 0.065 0.95 3 21 0.036 0.353 6.9 17 0.083 1.46 6 20 0.073 1.18 4.6 22 0.056 0.74 2.5 24 0.031 0.279 5.7 21 0.069 1.07 5 23 0.061 0.87 3.8 24 0.046 0.53 2 26 0.025 0.1915 4.5 24 0.054 0.70 4 26 0.048 0.58 3 27 0.036 0.35 1.8 28 0.023 0.16

XBOXER Size 6 1 ROW Air Volume Flow rate (m3/s) 0.6 0.4 0.2Water Heat Air Off Water flow Water Heat Air Off Water flow Water Heat Air Off Water flow Water on/off Air On Output C rate dp Output C rate dp Output C rate dp

C C (kW) C (l/s) (kPa) (kW) C (l/s) (kPa) (kW) C (l/s) (kPa) -3 11 12 0.244 5.2 8.6 15 0.19 3.3 5 18 0.112 1.13 10.2 17 0.226 4.5 8 19 0.176 2.83 4.6 22 0.104 0.959 9.4 22 0.208 3.9 7.4 24 0.164 2.46 4.4 27 0.096 0.8115 8.4 26 0.19 3.3 6.8 29 0.15 2.06 4 31 0.088 0.68

-3 9.6 10 0.116 1.18 7.2 12 0.088 0.71 4.3 15 0.052 0.243 8.6 15 0.104 0.94 6.6 17 0.082 0.61 4 19 0.048 0.209 7.6 19 0.094 0.77 6 21 0.074 0.50 3.6 24 0.044 0.1715 6.8 24 0.084 0.62 5.4 26 0.066 0.40 3.2 28 0.038 0.13

-3 8 8 0.096 0.80 6.2 10 0.074 0.50 3.2 10 0.038 0.133 5.2 10 0.064 0.36 4 11 0.05 0.23 2.2 12 0.028 0.079 4.4 15 0.052 0.24 3.4 16 0.04 0.15 2 17 0.026 0.0615 3.4 20 0.042 0.15 2.6 20 0.032 0.09 1.8 22 0.024 0.05

XBOXER Size 6 2 ROWAir Volume Flow rate (m3/s) 0.6 0.4 0.2Water Heat Air Off Water flow Water Heat Air Off Water flow Water Heat Air Off Water flow Water on/off Air On Output C rate dp Output C rate dp Output C rate dp

C C (kW) C (l/s) (kPa) (kW) C (l/s) (kPa) (kW) C (l/s) (kPa) -3 25 31 0.556 11.5 19 36 0.424 7.1 10.8 41 0.242 2.743 11.5 35 0.514 10 17.6 39 0.392 6.3 10 44 0.224 2.409 21 38 0.472 8.6 16 42 0.36 5.4 9.2 47 0.206 2.0815 19.2 41 0.428 7.3 14.8 45 0.32 4.6 8.4 50 0.188 1.78

-3 21.4 26 0.26 3.2 16 30 0.2 1.98 9.4 35 0.114 0.763 19.4 30 0.238 2.72 15 33 0.182 1.69 8.6 38 0.104 0.659 17.6 33 0.214 2.27 13.4 36 0.164 1.41 7.8 41 0.094 0.5515 15.6 36 0.19 1.85 12 39 0.146 1.16 7 43 0.084 0.45

-3 14 16 0.17 1.53 10.6 19 0.13 0.95 6 21 0.072 0.353 12 20 0.146 1.18 9.2 22 0.112 0.74 5 24 0.062 0.279 10 23 0.122 0.87 7.6 24 0.092 0.53 4 26 0.05 0.1915 8 26 0.096 0.58 6 27 0.072 0.35 3.6 28 0.046 0.16

XBOXER Size 6H 6V 2 ROW Air Volume Flow rate (m3/s) 0.7 0.5 0.3Water Heat Air Off Water flow Water Heat Air Off Water flow Water Heat Air Off Water flow Water on/off Air On Output C rate dp Output C rate dp Output C rate dp

C C (kW) C (l/s) (kPa) (kW) C (l/s) (kPa) (kW) C (l/s) (kPa) -3 28 30.5 0.633 3 24 37 0.54 2.2 18 48 0.41 1.373 26 33 0.58 2.59 22 40 0.5 1.93 17 48.5 0.39 1.269 24 37 0.53 2.22 20 42 0.46 1.68 15 50 0.35 1.0515 21 40 0.47 1.81 18 45 0.41 1.38 14 53 0.31 0.85

-3 23 21 0.28 0.75 20 27 0.24 0.55 15 36 0.19 0.373 20 25 0.25 0.62 17 30 0.22 0.48 14 38 0.17 0.319 17 29 0.22 0.50 15 33 0.19 0.37 12 40 0.14 0.2215 15 32 0.18 0.35 13 36 0.16 0.28 10 42 0.12 0.17

-3 13 11 0.15 0.26 11 14 0.13 0.20 8 18 0.1 0.123 10 14 0.12 0.18 8 16 0.1 0.13 6 17 0.07 0.079 6 16 0.07 0.07 5 17 0.06 0.055 5 21 0.07 0.07

*Please note: above tables are based on indicative selections. For more specific selection, contact Nuaire.



XBOXER COILS FOR LPHW UNITS


1. Unit reference2. XBOXER V stacked3. R = Right hand component layout4. L = LPHW5. No number = 1 row coil

2 = 2 row coil or 3 = 3 row coil

Code descriptions

S10 - XBV - R L 2| | | | |1 2 3 4 5

82/71

80/60

60/40

82/71

80/60

60/40

82/71

80/60

60/40

82/71

80/60

60/40

Conn

ection size

1.25”

1”

1”

Conn

ection size

2”

1.25”

1.25”

Conn

ection size

2”

1.5”

1.5”

Conn

ection size

2”

1.5”

1.5”

For further assistance please call Nuaire.Note: dp figures do not include 3 port valve, approximately divide these figures if valves are included.


XBOXER Size 7 2 ROW Air Volume Flow rate (m3/s) 1.7 1.3 1Water Heat Air Off Water flow Water Heat Air Off Water flow Water Heat Air Off Water flow Water on/off Air On Output C rate dp Output C rate dp Output C rate dp

C C (kW) C (l/s) (kPa) (kW) C (l/s) (kPa) (kW) C (l/s) (kPa) -3 60 26 1.32 11 54 31 1.2 9.4 46 35 1 7.43 55 29 1.22 9.6 50 35 1.1 8.3 43 38 0.96 6.69 50 33 1.1 8.2 46 38 1 7.2 40 41 0.88 5.815 45 37 0.97 7 41 41 0.92 6.2 36 44 0.8 5

-3 50 21 0.61 3.4 45 26 0.56 2.9 39 29 0.48 2.333 45 25 0.55 2.83 41 29 0.5 2.42 36 32 0.44 2.079 40 28 0.49 2.37 37 32 0.45 2.06 32 35 0.39 1.7215 35 32 0.43 1.93 33 36 0.4 1.71 28 38 0.35 1.45

-3 32 12 0.39 1.66 29 15 0.35 1.39 25 17 0.3 1.143 27 16 0.33 1.28 25 19 0.3 1.10 21 20 0.26 0.929 22 20 0.27 0.94 20 22 0.24 0.78 17 23 0.21 0.6615 17 23 0.2 0.59 15 24 0.19 0.54 14 26 0.16 0.43

XBOXER Size 8 2 ROW Air Volume Flow rate (m3/s) 2.1 1.8 1.4Water Heat Air Off Water flow Water Heat Air Off Water flow Water Heat Air Off Water flow Water on/off Air On Output C rate dp Output C rate dp Output C rate dp

C C (kW) C (l/s) (kPa) (kW) C (l/s) (kPa) (kW) C (l/s) (kPa) -3 94 34 2.1 12.9 86 36 1.9 11 72 39 1.6 8.23 87 37 1.9 11.3 79 39 1.77 9.7 67 42 1.48 7.39 80 40 1.78 9.8 73 42 1.63 8.5 61 45 1.36 6.415 73 43 1.62 8.4 67 45 1.48 7.3 56 48 1.24 5.5

-3 81 29 0.99 3.9 74 31 0.91 3.4 62 34 0.76 2.593 74 32 0.91 3.4 68 34 0.83 3.05 57 37 0.69 2.239 67 35 0.82 3.00 61 37 0.75 2.60 51 39 0.63 1.9315 60 38 0.73 2.51 55 40 0.67 2.19 46 42 0.56 1.61

-3 54 18 0.66 2.15 49 19 0.6 1.84 41 21 0.5 1.353 47 21 0.57 1.71 43 22 0.52 1.48 36 24 0.43 1.079 39 24 0.48 1.31 36 25 0.43 1.10 30 26 0.36 0.8115 32 27 0.38 0.91 29 28 0.35 0.80 24 29 0.29 0.58

XBOXER Size 9 2 ROW Air Volume Flow rate (m3/s) 3.9 3 2Water Heat Air Off Water flow Water Heat Air Off Water flow Water Heat Air Off Water flow Water on/off Air On Output C rate dp Output C rate dp Output C rate dp

C C (kW) C (l/s) (kPa) (kW) C (l/s) (kPa) (kW) C (l/s) (kPa) -3 157 30 3.5 11.8 139 35 3.1 9.9 106 40 2.35 6.63 144 34 3.2 10.4 128 38 2.85 8.8 98 43 2.17 5.99 132 37 2.9 9.1 117 41 2.61 7.7 90 46 1.99 5.315 119 40 2.6 7.9 106 44 2.36 6.7 81 48 1.8 4.6

-3 131 25 1.6 3.9 116 29 1.42 3.3 89 33 1.1 2.283 118 28 1.44 3.4 105 32 1.28 2.87 81 36 0.99 1.979 106 31 1.29 2.92 94 35 1.15 2.47 72 38 0.88 1.6715 93 35 1.13 2.42 83 38 1 2.03 64 41 0.78 1.41

-3 83 14 1 2.04 73 17 0.89 1.73 56 20 0.67 1.143 70 18 0.85 1.63 62 20 0.75 1.36 47 22 0.57 0.919 56 21 0.68 1.19 50 23 0.61 1.02 37 24 0.45 0.6515 42 24 0.51 0.80 37 25 0.45 0.66 25 25 0.31 0.39

XBOXER Size 10 2 ROWAir Volume Flow rate (m3/s) 4.8 4.2 3.2Water Heat Air Off Water flow Water Heat Air Off Water flow Water Heat Air Off Water flow Water on/off Air On Output C rate dp Output C rate dp Output C rate dp

C C (kW) C (l/s) (kPa) (kW) C (l/s) (kPa) (kW) C (l/s) (kPa) -3 201 31 4.5 13 189 34 4.2 11.7 166 40 3.7 9.63 184 35 4.1 11.2 174 37 3.9 10.3 153 42 3.4 8.59 168 38 3.7 9.8 158 40 3.5 9 139 45 3.1 7.515 151 41 3.4 8.4 143 43 3.2 7.7 125 47 2.8 6.4

-3 161 25 1.97 4 152 27 1.86 3.8 134 32 1.64 3.23 145 28 1.77 3.5 137 30 1.67 3.3 121 34 1.48 2.669 128 31 1.56 2.95 121 33 1.48 2.72 107 37 1.31 2.24 15 111 34 1.36 2.43 106 36 1.29 2.24 93 39 1.14 1.85

-3 96 13 1.16 1.95 91 15 1.1 1.79 80 18 0.97 1.473 79 16 0.96 1.49 75 18 0.91 1.37 66 20 0.8 1.129 61 19 0.74 1.04 58 20 0.7 0.95 50 22 0.61 0.7715 39 22 0.48 0.57 36 22 0.43 0.48 29 23 0.35 0.35

029 2085 820076

HEAT RECOVERY PERFORMANCE


XBOXER PERFORMANCE


To determine the temperature of the supply air - after the heat exchanger

module (but before the heater if fitted), refer to the following table.

When selecting heater batteries, use this temperature as the “Air On”

temperature in the coil selection tables.

Heat Intake Air (ROOM) Extract Air Temperature (deg C)Exchanger Temperature

Temperature (deg C) 5 10 15 20 25 30Ratio (%)

("efficiency") (External) Supply Air Temperature (deg C)

-5 1 3 6 9 12 140 3 6 8 11 14 17

55 5 5 8 11 13 16 1910 7 10 13 16 18 2115 10 12 15 18 21 23

-5 1 4 7 10 13 160 3 6 9 12 15 18

60 5 5 8 11 14 17 2010 7 10 13 16 19 2215 9 12 15 18 21 24

-5 2 5 8 11 15 180 3 7 10 13 16 20

65 5 5 8 12 15 18 2110 7 10 13 17 20 2315 9 12 15 18 22 25

-5 2 6 9 13 16 200 4 7 11 14 18 21

70 5 5 9 12 16 19 2310 7 10 14 17 21 2415 8 12 15 19 22 26

-5 3 6 10 14 18 210 4 8 11 15 19 23

75 5 5 9 13 16 20 2410 6 10 14 18 21 2515 8 11 15 19 23 26

-5 3 7 11 15 19 230 4 8 12 16 20 24

80 5 5 9 13 17 21 2510 6 10 14 18 22 2615 7 11 15 19 23 27

-5 4 8 12 16 21 250 4 9 13 17 21 26

85 5 5 9 14 18 22 2610 6 10 14 19 23 2715 7 11 15 19 24 28

-5 4 9 13 18 22 270 5 9 14 18 23 27

90 5 5 10 14 19 23 2810 6 10 15 19 24 2815 6 11 15 20 24 29

Other conditions may be calculated using the equation:

= Thermal efficiency ( supply - intake) / ( extract – intake)

This table and equation assume that the supply and extract mass flow rates are equal.

Note: for specific fan power ratings contact Nuaire for details.

77nuaire.co.uk

HOW MUCH ENERGY DOES THE EXCHANGER SAVE?



XBOXER PERFORMANCE


In a building ventilation system that does not have a heat recovery facility, the

air used for ventilation enters the building at the external ambient temperature,

and is expelled from the building at approximately room temperature.

This increase in temperature may be caused directly by heaters intended to raise

the air temperature to a suitable value for supply to occupied rooms, or indirectly

by heat transfer from the buildings internal surfaces and existing air content.

This “ventilation heat loss” can be quantified as:

Air Mass Flow rate (kg/s) (Air volume flow rate (m3/s) x Air density (kg/m3)

x Temperature difference (deg C) [Ta internal – Ta external]

x Specific Heat Capacity of air (kJ/kg deg C)

(Approx = 1)

Using some typical (heating season) values, the power required to heat unit air

flow, and which is then lost is:

= 1m3/s x 1.2 kg/m3 x (22-6) deg C x 1

= 19.2 kW

Heat recovery systems reduce this heat loss by transferring the heat contained in

the extracted air to the supply air.

A system with a heat exchange efficiency of 70% will recover 70% of the energy

supplied therefore reducing the power required.

There is of course an energy penalty in terms of the additional pressure loss due

to the heat exchanger element itself, and this needs to be minimized by optimal

selection of the system fans, motors and control systems. Generally, it can be

demonstrated that the additional system losses are small compared to the

reduction in heating load.

ELECTRIC HEATINGTo find the final supply air temperature when an electric heater is required, use

the following table:

Air Intake Air Electric heater kWVolume TemperatureFlow rate (deg C) 2 3 6 9 12 15 18 21 24 27 54

m3/sSupply Air Temperature (deg C)

-5 12 200 17 25

0.1 5 22 3010 27 3515 32

-5 8 20 330 8 13 25 38

0.2 5 13 18 3010 18 23 3515 23 28

-5 8 14 20 26 330 6 13 19 25 31 38

0.4 5 9 11 18 24 30 3610 14 16 23 29 3515 19 21 28 34

-5 8 12 16 20 24 28 330 8 13 17 21 25 29 33 38

0.6 5 8 9 13 18 22 26 30 34 3810 13 14 18 23 27 31 35 3915 18 19 23 28 32 36

-5 8 11 14 17 20 230 6 9 13 16 19 22 25 28

0.8 5 7 8 11 14 18 21 24 27 30 3310 12 13 16 19 23 26 29 32 35 3815 17 18 21 24 28 31 34 37

-5 5 8 10 13 15 18 400 5 8 10 13 15 18 20 23

1 5 7 8 10 13 15 18 20 23 25 2810 12 13 15 18 20 23 25 28 30 3315 17 18 20 23 25 28 30 33 35 38

-5 5 7 8 10 250 5 7 8 10 12 13 15 30

1.5 5 6 7 8 10 12 13 15 17 18 20 3510 11 12 13 15 17 18 20 22 23 25 4015 16 17 18 20 22 23 25 27 28 30

-5 5 6 180 5 6 8 9 10 11 23

2 5 6 6 8 9 10 11 13 14 15 16 2810 11 11 13 14 15 16 18 19 20 21 3315 16 16 18 19 20 21 23 24 25 26 38

-5 100 5 6 7 8 15

3 5 6 6 7 8 8 9 10 11 12 13 2010 11 11 12 13 13 14 15 16 17 18 2515 16 16 17 18 18 19 20 21 22 23 30

029 2085 820078

WIRING FOR XB2-5 & S6-XB-R/L E EXTRACT/SUPPLY


XBOXER WIRING


S1-XB & S6-XB-R/L N EXTRACT/SUPPLY

'Net' connection for Ecosmart devices

RUN FAULT

N E L SL DP

CL N RET

DAMPERHEAT

DEMAND

Remove link if switched live signal, an enabler or BMS signal is connected

Damper connectionHeat demand signal

Run signal

Fault signal

Connection for ES - CO2

0 - 10V BMS Signal

Mains connection230V 50Hz 1 phase


RUN FAULT

N E L SL DP

CL N RET

DAMPERHEAT

DEMAND



Run signal

Fault signal


0 - 10V BMS Signal



RUN FAULT

NELSL

DP

CLNRET

DAMPERHEAT

DEMAND



Run signal

Fault signal


0 - 10V BMS Signal


Bypass controller

ELN


RUN FAULT

N E L SL DP

CL N RET

DAMPERHEAT

DEMAND



Run signal

Fault signal


0 - 10V BMS Signal



RUN FAULT

NELSL

DP

CLNRET

DAMPERHEAT

DEMAND



Run signal

Fault signal


0 - 10V BMS Signal


ELN

WIRING FOR S1-XB, XB2-5 & S6-XB-R/L L EXTRACT/SUPPLY


RUN FAULTNELSL

DP

CLNRET

DAMPERHEAT

DEMAND



Run signal

Fault signal


0 - 10V BMS Signal


ELN

E Heatercontroller

Bypass controller

Bypass controller

E Heatercontroller

79nuaire.co.uk


XBOXER WIRING



230V - 50Hz Supply


L

N

N

L



Run Signal

Fault Signal


Fault Signal


Min Max SL run on

Trickle Test

0 1

Link wire see note*

ES-CO2Connection

BMSInputSignal

0-10

V

0V


Extract

N E L SL DP

CL N RET



Min Max SL run on

Trickle Test

0 1

Link wire see note*

ES-CO2Connection

BMSInputSignal

0-10

V

0V


Supply

N E L SL DP

CL N RET



Heat Demand Signal

230V - 50Hz Supply


L

N

N

L


Run Signal

Fault Signal


Fault Signal


Min Max SL run on

Trickle Test

0 1

Link wire see note*

ES-CO2Connection

BMSInputSignal

0-10

V

0V


Extract

N E L SL DP

CL N RET



Min Max SL run on

Trickle Test

0 1

Link wire see note*

ES-CO2Connection

BMSInputSignal

0-10

V

0V


Supply

N E L SL DP

CL N RET



Co

15 20 25

30



Heat Demand Signal

XB2-5 WITH ECOSMART FAN ONLY CONTROL

XB2-5 WITH ECOSMART CONTROL AND ELECTRIC HEATER

029 2085 820080


XBOXER WIRING


230V - 50Hz Supply


L

N

N

L


Fault Signal


Min Max SL run on

Trickle Test

0 1

Link wire see note*

ES-CO2Connection

BMSInputSignal

0-10

V

0V


Extract

N E L SL DP

CL N RET



Run Signal

Fault Signal


Min Max SL run on

Trickle Test

0 1

Link wire see note*

ES-CO2Connection

BMSInputSignal

0-10

V

0V


Supply

N E L SL DP

CL N RET



Co15

20 25

30

Inlet OutletSensor Sensor

Cool FrostDemand Alarm DX-1 DX-2

Cool DXSensor Coil



Heat Demand Signal

WIRING - FOR UNITS SUPPLIED WITHOUT ECOSMART CONTROL

The wiring illustrations below are for the fans, bypass damper and electric heater

for units without control. All wiring is terminated in junction boxes fitted to the

specified side of the unit.

It is the installer’s responsibility to select and fit the appropriate control

equipment to produce the desired output.

Note that any heating/cooling coils fitted are supplied

without control valve and actuator.

ELECTRICAL DETAILS

Fan motor Electric heater

ratings ratings (if fitted)

Unit size flc sc kW flc

XB2 2 x 0.75A 2 x 3A 4.5kW 18.7A

XB3 2 x 0.75A 2 x 3A 4.5kW 18.7A

XB4 2 x 1.2A 2 x 4.8A 4.5kW 18.7A

XB5 2 x 1.2A 2 x 4.8A 4.5kW 18.7A

Bypass damper rated at 3W, 13mA for all unit sizes.

EART

H

NEU

TRA

L

LIV

E

FAN 1

Isolator by others

N L

N L230V-50Hz

Fuse

3A (T)

(Unit sizes XB2-5) Fan wiring. Two per unit and one per blower.

Isolator by others

N L

N L230V-50Hz

N L230V-50Hz

N L

Isolator by others

Bypa

ss D

ampe

rPo

wer

to

open

Aut

o C

lose

Elec

tric

Hea

ter

Ther

mal

Ove

rloa

d

Con

nect

ion

to

Elec

tric

Ele

men

ts

(Unit sizes XB2-5) with electric heater, heat exchanger bypass damper and electricheater wiring.

(Unit sizes XB2-5) Fan only or withLPHW coil, heat exchanger bypassdamper wiring.

N L230V-50Hz

Isolator by others

Bypa

ss D

ampe

rPo

wer

to

open

Aut

o C

lose

N L

XB2-5 WITH ECOSMART FAN AND LPHW COIL CONTROL



XBOXER WIRING


WIRING FOR S6-XB V/H-R/L E EXTRACT

Connections to Damper

FAU

LT

RU

N

N

L

SL

DP

CL

N

RET

Remove this link wire if: 1. a switched live signal is connected.2. A ES-PIR, ES-TC or BMS signal is connected.

NET connections for ECOSMART devices

Min Max SL run on

Trickle Test

0 1

Pwr

Standby

Fan 1

Fan 2

Heating

Cooling

Fault

Frost

Tx

Rx

Ecosmart

Heat demand signal

L

N

EEarth

Run signal

Fault signal

HEA

T

D

AM

PER

DEM

AN

D

230V 50Hz 1ph mains

0V

0-10VBMS signal


FAU

LT

RU

N

N

L

SL

DP

CL

N

RET



Min Max SL run on

Trickle Test

0 1

Pwr

Standby

Fan 1

Fan 2

Heating

Cooling

Fault

Frost

Tx

Rx

Ecosmart

Heat demand signal

L3

L2

L1

N

E

400V 50Hz 3ph +N mainssupply for fan and heater

Earth

Run signal

Fault signal

HEA

T

D

AM

PER

DEM

AN

D

Adjustment for air off temperature. Do not set temperature above 30O C

Electric heater control

0V

0-10VBMS signal

WIRING FOR S6-XB V/H-R/L N EXTRACT


FAU

LT

RU

N

N

L

SL

DP

CL

N

RET



Min Max SL run on

Trickle Test

0 1

Pwr

Standby

Fan 1

Fan 2

Heating

Cooling

Fault

Frost

Tx

Rx

Ecosmart

Heat demand signal

L

N

E

230V 50Hz 1ph mains

Earth

Run signal

Fault signal

HEA

T

D

AM

PER

DEM

AN

D

ON

OFF

AU

TOH

EATE

R/C

OO

L

Cooling demand signal

Frostalarm signal

Signal for DX1 coilif fitted


25

30

25

Set air off temperature of LPHW coil

0V

0-10VBMS signal

WIRING FOR S6-XB V/H-R/L L EXTRACT


FAU

LT

RU

N

N

L

SL

DP

CL

N

RET



Min Max SL run on

Trickle Test

0 1

Pwr

Standby

Fan 1

Fan 2

Heating

Cooling

Fault

Frost

Tx

Rx

Ecosmart

Heat demand signal

L

N

EEarth

Run signal

Fault signal

HEA

T

D

AM

PER

DEM

AN

D

230V 50Hz 1ph mains

0V

0-10VBMS signal


FAU

LT

RU

N

N

L

SL

DP

CL

N

RET



Min Max SL run on

Trickle Test

0 1

Pwr

Standby

Fan 1

Fan 2

Heating

Cooling

Fault

Frost

Tx

Rx

Ecosmart

Heat demand signal

L

N

EEarth

Run signal

Fault signal

HEA

T

D

AM

PER

DEM

AN

D

230V 50Hz 1ph mains

0V

0-10VBMS signal

S6-XB V/H-R/L N SUPPLY


FAU

LT

RU

N

N

L

SL

DP

CL

N

RET



Min Max SL run on

Trickle Test

0 1

Pwr

Standby

Fan 1

Fan 2

Heating

Cooling

Fault

Frost

Tx

Rx

Ecosmart

Heat demand signal

L

N

EEarth

Run signal

Fault signal

HEA

T

D

AM

PER

DEM

AN

D

230V 50Hz 1ph mains

0V

0-10VBMS signal

S6-XB V/H-R/L L SUPPLY

S6-XB V/H--R/L E SUPPLY

Bypass controller

Bypass controller

Bypass controller

029 2085 820082

WIRING FOR S7, 8-XB V/H-R/L E EXTRACT


XBOXER WIRING



FAU

LT

RU

N

N

L

SL

DP

CL

N

RET



Min Max SL run on

Trickle Test

0 1

Pwr

Standby

Fan 1

Fan 2

Heating

Cooling

Fault

Frost

Tx

Rx

Ecosmart

Heat demand signal

Earth

Run signal

Fault signal

HEA

T

D

AM

PER

DEM

AN

D

L3

L2

L1

N

E

400V 50Hz 3ph +N mains

1 3 5

2 4 6(U) (V) (W)

L1 L2 L3 E

(U) (V) (W)

L3

L2

L1

12 13 14 15

5 6 7 8 9 10 11

CO

NTA

CTE

R

A1

A2

0V

0-10VBMS signal

12 13 14 15


FAU

LT

RUN

N

L

SL

DP

CL

N

RET



Min Max SL run on

Trickle Test

0 1

Pwr

Standby

Fan 1

Fan 2

Heating

Cooling

Fault

Frost

Tx

Rx

Ecosmart

Heat demand signal

Run signal

Fault signal

HEA

T

D

AM

PER

DEM

AN

D

L3

L2

L1

N

E

400V 50Hz 3ph +N mainssupply for fan

1 3 5

2 4 6(U) (V) (W)

L1 L2 L3 E

(U) (V) (W)

L3

L2

L1

12 13 14 15

5 6 7 8 9 10 11

CO

NTA

CTE

R

A1

A2

1 2


Adjustment for air off temperature. Do not set temperature above 30O C

LINE 1 LINE 2 LINE 3 Earth

L1 L2 L3 E

400V 50Hz 3ph supply for heater

Note: these controls are located in the electric heater section

HTR

Heater over-temperature stat

Make connection after the unit has been assembled0V

0-10VBMS signal

Make connection after the unit has been assembled

R T

Sens

or

HEA

TSE

NS

A

C

A

B

12 13 14 15

WIRING FOR S7, 8-XB V/H-R/L E SUPPLY

Bypass controller

Important: Section A is an adjacent module in which additional controls and

sensors are installed. Ensure these devices are connected to the Ecosmart control

by terminating at points B & C.

83nuaire.co.uk

WIRING FOR S7, 8, 9 AND 10-XB V/H-R/L N EXTRACT



XBOXER WIRING



FAU

LT

RU

N

N

L

SL

DP

CL

N

RET



Min Max SL run on

Trickle Test

0 1

Pwr

Standby

Fan 1

Fan 2

Heating

Cooling

Fault

Frost

Tx

Rx

Ecosmart

Heat demand signal

Earth

Run signal

Fault signal

HEA

T

D

AM

PER

DEM

AN

D

L3

L2

L1

N

E


1 3 5

2 4 6(U) (V) (W)

L1 L2 L3 E

(U) (V) (W)

L3

L2

L1

12 13 14 15

5 6 7 8 9 10 11

CO

NTA

CTE

R

A1

A2

0V

0-10VBMS signal

12 13 14 15


FAU

LT

RU

N

N

L

SL

DP

CL

N

RET



Min Max SL run on

Trickle Test

0 1

Pwr

Standby

Fan 1

Fan 2

Heating

Cooling

Fault

Frost

Tx

Rx

Ecosmart

Heat demand signal

Earth

Run signal

Fault signal

HEA

T

D

AM

PER

DEM

AN

D

L3

L2

L1

N

E


1 3 5

2 4 6(U) (V) (W)

L1 L2 L3 E

(U) (V) (W)

L3

L2

L1

12 13 14 15

5 6 7 8 9 10 11

CO

NTA

CTE

R

A1

A2

0V

0-10VBMS signal

12 13 14 15

WIRING FOR S7, 8, 9 AND 10-XB V/H-R/L N SUPPLY

029 2085 820084

WIRING FOR S7, 8, 9 AND 10-XB V/H-R/L L EXTRACT


XBOXER WIRING



FAU

LT

RU

N

N

L

SL

DP

CL

N

RET



Min Max SL run on

Trickle Test

0 1

Pwr

Standby

Fan 1

Fan 2

Heating

Cooling

Fault

Frost

Tx

Rx

Ecosmart

Heat demand signal

Earth

Run signal

Fault signal

HEA

T

D

AM

PER

DEM

AN

D

L3

L2

L1

N

E


1 3 5

2 4 6(U) (V) (W)

L1 L2 L3 E

(U) (V) (W)

L3

L2

L1

12 13 14 15

5 6 7 8 9 10 11

CO

NTA

CTE

R

A1

A2

0V

0-10VBMS signal

12 13 14 15


FAU

LT

RU

N

N

L

SL

DP

CL

N

RET



Min Max SL run on

Trickle Test

0 1

Pwr

Standby

Fan 1

Fan 2

Heating

Cooling

Fault

Frost

Tx

Rx

Ecosmart

Heat demand signal

Earth

Run signal

Fault signal

HEA

T

D

AM

PER

DEM

AN

D

L3

L2

L1

N

E


1 3 5

2 4 6(U) (V) (W)

L1 L2 L3 E

(U) (V) (W)

L3

L2

L1

12 13 14 15

5 6 7 8 9 10 11

12 13 14 15

CO

NTA

CTE

R

A1

A2

ON

OFF

AU

TOH

EATE

R/C

OO

L


Frostalarm signal



25

30

25

Set air off temperature of LPHW coil

Connect to inlet sensor after unit is assembled

Outlet sensor

Inlet sensor

3

2

1

GREEN

BROWN

WHITE

Connect to LPHW actuator motor SM24motor set at position A

0V

0-10VBMS signal

A

A

WIRING FOR S7, 8, 9 AND 10-XB V/H-R/L L SUPPLY

Important: Actuator and sensors (A)

are positioned in adjacent modular

sections and will require wiring and

connection to the Ecosmart control.

85nuaire.co.uk

WIRING FOR TWINFAN UNITS XB6T AND XB8T (STANDBY EXTRACT FAN)



XBOXER WIRING


Below is the wiring diagram for the Xboxer twin/standby fan relay box.

This box is located on the standby fan and is connected at works to an Ecosmart

direct drive control.

The customer has to connect the fault terminals of the Ecosmart control to the

relay box.

If the main Xboxer extract fan should fail then the fault contact will close and

therefore energise the relay. The normally open contacts will then close powering

up the SL contact of the standby fan. It therefore follows that the customers

wiring is 240V and not low voltage.

FAU

LT

RU

N

N

L

SL

Remove this link wire if: 1. A switched live signal is connected.2. A ES-PIR, ES-TC or BMS signal is connected.

Min Max SL run on

Trickle Test

0 1

Pwr

Standby

Fan 1

Fan 2

Heating

Cooling

Fault

Frost

Tx

Rx

Ecosmart

D

AM

PER

E E N L1 L2 L3

400V 3~50Hz supply Via local isolator (by others)

0V

0-10VBMS signal

'NET' connection

E N L1 L2 L3

Note: Run and standby extract fans aresupplied bolted together.

DP

CL

N

RET

Note: Internal connections

between the supply

terminals, output

contactors the PCB and

inverter are made at

the factory.

1 3 5 13

2 4 6 14(U) (V) (W)

CO

NTA

CTE

R

A1

A2

Pre-wired to Fan 1

1 3 5 13

2 4 6 14(U) (V) (W)

CO

NTA

CTE

R

A1

A2

Pre-wired to Fan 2

029 2085 820086


XBOXER


XBOXER STACKED UNITS



Supply air to the room shall be pre-heated by the extract air via the integrated

heat exchanger matrix. Where fitted an integrated heater battery shall raise the

temperature of the supply air to the design room temperature after the air has

passed through the heat exchanger. The ventilation unit shall automatically vary

the ventilation rate, as it receives signals from one of the optional

interconnected sensors. When signals are received, the fan shall either vary its

speed proportionally or on a trickle and boost principle. The unit shall have the

facility to commission the supply and extract fans individually via inbuilt

minimum and maximum speed adjustment, the fans themselves shall have

infinitely variable speed control.

XBOXER STACKED - UNIT SPECIFICATIONUnit codes XB shall be manufactured in aluminium alloy with 25mm double

skinned infil panels and extruded aluminium frame. Unit codes XBV and H shall

be manufactured from Aluzinc with 25mm infill panels, giving extremely low

noise levels. It shall be come c/w a high efficiency heat exchanger matrix, supply

and extract filters, automatic summer bypass, integral minimum and maximum

infinitely variable speed controls, run on timer and facia mounted failure

indication. The unit shall have low energy, high efficiency a.c. fan/motor

assemblies with sealed for life bearings. The Impellers shall be high efficiency

mixed flow or centrifugal type.

The unit shall have a robust plastic/aluminium heat exchanger matrix with a

thermal efficiency of up to 55 - 70% that shall be protected by G4* grade

pleated filters on supply and extract. It shall come complete with a condensate

drip tray and 22mm drain connection. Alternatively a condensate pump shall be

provided if specified.


access from the sides (access handing to be confirmed in product code and

verified on site prior to order).

The removable panels shall provide access to the following:

• Supply or extract fan.


• Heat exchanger block.


• LPHW Heater pipe connections. (where included).

• Speed control commissioning adjustment (min & max).

• Electrical connection terminal blocks.

Units shall be as manufactured by Nuaire.

* Other filter specifications including high capacity filters & grade F7 available as

integrated options. (contact Nuaire).

XBOXER STACKED - STANDARD CONTROLSAll versions shall incorporate the following functions integrally mounted, pre-

wired and factory fitted by the manufacturer: -

• Integral infinitely variable speed control on supply and extract.



• Integral BMS interfaces – summer/winter switching, heating

control**, 0-10V speed adjustment.


• Volt free failure indication (direct from individual fan).

• Integral S/L terminal for boost trigger from remote switch, e.g. lightswitch.

• Integral air off coil temperature adjustment**

• Volt free frost alarm/heat demand interface**

• Frost protection/hold off stat**

• The unit shall be controlled by the ECOSMART control devices (enablers &

sensors) as detailed in the schedule on the drawings.

• LPHW pipework connections c/w diverting valve and actuator.**

** Versions incorporating heater sections.

INVERTER DRIVESSizes 2 - 5 have AC control, size 6 has EC control and sizes 7, 8, 9 and

10 have integral frequency inverter/speed control.

COIL TYPES AND CONTROLSThe control for the coils shall be fully integrated and shall maintain a constant

off coil temperature between 15 - 30 degrees due to Ecosmart limitations.

The system shall have frost protection which shall, at temperatures below 4

degrees C, fully open the 3 or 4-port valve and only start the fan when the

temperature at the filter has risen above the designated set point.

LOW PRESSURE HOT WATERThe Low Pressure Hot Water heating coil shall be factory fitted with a 3 or 4 port

valve, drain cocks and air vents. The actuator controlling the 3 or 4 port valve

shall be controlled via the on-board PCB by the off coil temperature sensor. All

components pre-piped, assembled and tested by the manufacturers.

ELECTRICThe Electric Heater Battery shall be factory fitted and pre-wired to an integral

closed loop thyristor control. When the unit is switched off, the fan shall

continue to run to dissipate heat from the electric heater battery before

stopping.

The Ecosmart control unit shall have a 5 year warranty.

The manufacturer’s recommendations should be observed at all times.

The unit shall be the XBOXER and shall be manufactured by Nuaire.


87nuaire.co.uk


XBOXER


XBOXER HORIZONTAL UNITS






passed through the heat exchanger. The ventilation unit shall automatically vary

the ventilation rate, as it receives signals from one of the optional

interconnected sensors. When signals are received, the fan shall either vary its

speed proportionally or on a trickle and boost principle. The unit shall have the

facility to commission the supply and extract fans individually via inbuilt

minimum and maximum speed adjustment, the fans themselves shall have

infinitely variable speed control.

XBOXER HORIZONTAL - UNIT SPECIFICATIONUnit codes XB shall be manufactured in aluminium alloy with 25mm double


be manufactured from Aluzinc with 25mm infil panels, giving extremely low

noise levels. The unit shall have a high efficiency aluminium heat exchanger

matrix, supply and extract filters, automatic summer bypass, integral minimum

and maximum infinitely variable speed controls, run on timer and facia mounted

failure indication. The unit shall have low energy, high efficiency a.c. fan/motor

assemblies with sealed for life bearings. Impellers shall be high efficiency mixed

flow or centrifugal type.

The unit shall have a heat exchanger block with a thermal efficiency of up to

70%, that shall be protected by G4* grade pleated filters on supply and extract.

Complete with condensate drip tray and 22mm drain connection (XB2-5 has a

15mm drain connection). Alternatively a condensate pump shall be provided if

specified.


access from both sides (access handing to be confirmed in product code and

verified on site prior to order).

The removable panels shall provide access to the following:








Units shall be as manufactured by Nuaire.

*Other filter specifications including high capacity filters & grade F7 available as

integrated options. (contact Nuaire).

XBOXER HORIZONTAL - ECOSMART CONTROLSAll versions shall incorporate the following functions integrally mounted, pre-

wired and factory fitted by the manufacturer: -




• Integral BMS interfaces – summer/winter switching, heating control**,

0-10V speed adjustment.



• Integral S/L terminal for boost trigger from remote switch, e.g. lightswitch.








INVERTER DRIVESSizes 2 - 5 have AC control, size 6 has EC control and sizes 7, 8, 9 and 10 have

integral frequency inverter/speed control.

Unit provides side mounting of termination box to connect supply and extract

fan motor wiring (terminal boxes) for interface to custom built control panels.

For this option, no sensors are fitted to the unit, but with plate heat exchanger

units the bypass damper actuator is included.


off coil temperature. The system shall have frost protection which shall, at

temperatures below 4ºC, fully open the 3 or 4-port valve and only start the fan

when the temperature at the filter has risen above the designated set point.

LOW PRESSURE HOT WATERThe Low Pressure Hot Water heating coil shall be factory fitted with a

3 or 4 port valve, drain cocks and air vents. Shall be controlled by a motorised

control valve. The actuator controlling the 3 or 4 port valve shall be controlled

via the on-board PCB by the off coil temperature sensor. All components pre-

piped, assembled and tested by the manufacturers.


closed loop thyristor control. When the unit is switched off, the fan shall continue

to run to dissipate heat from the electric heater battery before stopping.



The unit shall be the XBOXER and shall be manufactured by Nuaire.



029 2085 820088


XBOXER


XBOXER TWINFAN UNITS






passed through the heat exchanger.

The ventilation unit shall automatically vary the ventilation rate, as it receives

signals from one of the optional interconnected sensors. When signals are

received, the fan shall either vary its speed proportionally or on a trickle and

boost principle. The unit shall have the facility to commission the supply and

extract fans individually via inbuilt minimum and maximum speed adjustment,

the fans themselves shall have infinitely variable speed control.

XBOXER TWINFANS - UNIT SPECIFICATIONUnit codes XB shall be manufactured in aluminium alloy with 25mm double


be manufactured from Aluzinc with 25mm infill panels, giving extremely low

noise levels. It shall be come c/w a high efficiency heat exchanger block, supply

and extract filters, automatic summer bypass, integral minimum and maximum

infinitely variable speed controls, run on timer and facia mounted failure

indication. The unit shall have low energy, high efficiency a.c. fan/motor

assemblies with sealed for life bearings. Impellers shall be high efficiency mixed

flow or centrifugal type.

The unit shall have a robust plastic/aluminium heat exchanger matrix with a

thermal efficiency of up to 55 - 70% that shall be protected by G4* grade

pleated filters on supply and extract. It shall come complete with a condensate

drip tray and 22mm drain connection. Alternatively a condensate pump shall be

provided if specified.


access from the side (access handing to be confirmed in product code and

verified on site prior to order). The removable panels shall provide access to the

following:








• Units shall be the as manufactured by Nuaire.

• 2 fans incorporate auto change over in the event of one fan failing.

* Other filter specifications including high capacity filters & grade F7 available as

integrated options.

XBOXER TWINFANS - ECOSMART CONTROLSAll versions shall incorporate the following functions integrally mounted,

pre-wired and factory fitted by the manufacturer: -




• Integral BMS interfaces – summer/winter switching, heating control**,




• Integral S/L terminal for boost trigger from remote switch,

e.g. lightswitch.


• Multiple IDC sockets for interconnection of up to 6 Ecosmart sensors,

controllers or fans using pre-plugged 4-core low voltage cable.





• 2 fans incorporate auto change over in the event of one fan failing.



INVERTER DRIVESSizes 2 - 5 have AC control, size 6 has EC control.

NO CONTROL OPTION (SIZES 7-10 XBH + XBV)Unit provides side mounting of termination box to connect supply and extract

fan motor wiring (terminal boxes) for interface to custom built control panels.

For this option, no sensors are fitted to the unit, but with plate heat exchanger

units the bypass damper actuator is included.



temperatures below 4 degrees C, fully open the 3 or 4-port valve and only start

the fan when the temperature at the filter has risen above the designated set

point.

LOW PRESSURE HOT WATERThe Low Pressure Hot Water heating coil shall be factory fitted with a

3 or 4 port valve, drain cocks and air vents. The actuator controlling the 3 or 4

port valve shall be controlled via the on-board PCB by the off coil temperature

sensor. All components pre-piped, assembled and tested by the manufacturers.


89nuaire.co.uk


XBOXER


XBOXER TWINFAN UNITS CONT.


closed loop thyristor control. When the unit is switched off, the fan shall continue

to run to dissipate heat from the electric heater battery before stopping.



The unit shall be the XBOXER and shall be manufactured by Nuaire .



029 2085 820090

ECOSMART SQURBO - SUPPLY OR EXTRACT

LOW DEPTH SUPPLY OR EXTRACT FANS THAT AUTOMATICALLY

REACT TO THE ENVIRONMENTAL CONDITIONS.

91nuaire.co.uk


ECOSMART SQURBO


ENERGY EFFICIENT All models have Ecosmart controls which provide

the most energy efficient and cost effective

solution by varying fan speed to suit the required

units.

EXACT VENTILATION Low voltage plug-in sensors allow the extract rate

to be automatically adjusted to suit the rooms

specific requirement. Plug-in sensors and controls

reduce the installation time on site.

COMPACT DESIGN Low case height makes this unit ideal for restricted

ceiling spaces. Unique, removable mounting

bracket and integral AV mounts ensure quick and

efficient installation and maintenance.

QUIETER UNITS Casing is fully lined to provide high acoustic and

thermal insulation properties ensuring very low

noise.

COST EFFECTIVE All sensors are safe extra low voltage therefore

eliminating the need for expensive main wiring

between fan and controls.

EFFICIENT PACKAGED SOLUTION All fans and controls are an integrated package

providing a simple to select and install system –

eliminating the need for traditional control panels.

SIMPLE COMMISSIONING On board control pad allows for pre-setting of

minimum and maximum fan speeds to suit design

requirements – no main balancing damper required.

DESIGN FLEXIBILITY Available in 6 case sizes, supply unit with LPHW or

electric heater.

ANCILLARIES Full range of heat exchangers, attenuators,

smart heaters and cowls etc. are available to

complete your installation.

WARRANTYEcosmart squrbo has a 5 year warranty.

For a more comprehensive description of Ecosmart

Squrbo supply and extract units please see the

Nuaire commercial catalogue.

BENEFITS

ECOSMART SUPPLY & EXTRACT VENTILATION SYSTEM CONVENTIONAL SUPPLY & EXTRACT VENTILATION SYSTEM

5

3

7

31

88

26

5

4

5

4

10 11

3 12 9

5

7

6

8

12

1 Supply Unit2 Extract Unit3 Integral Controls4 User Controls (on/off, speed,

heating) or BMS control5 Safe Extra Low Voltage (SELV)

12V Cable

6 CO2 Sensor (optional)7 PIR (Occupancy Sensor) optional8 230V electricity supply to fan

1 Supply Fan

2 Electrical Air Heater

3 Filter

4 Extract Fan

5 Control Panel

6 Equivalent Nuaire Control Panel

(User Control) for comparative purposes

7 230V/400V Electrical Supply

8 Various Control & 230v/400v Electricity Cabling

9 Temperature Switch

10 Air Pressure Switch

11 PVC Tubing

12 Time Clock

Code descriptions

1. ESS = Ecosmart Squrbo supply fan

2. Case Size/Curve Reference

3. No suffix = without heater

E = With electric heating

L = Heating

2L = with 2 row LPHW heating

Note: Performance curves make allowance for

the internal filter and heater battery and you

only need apply the resistance external to the

unit and any additional units eg. HX, Filter etc.

ESS 2 - E | | |1 2 3

1. ESSE = Ecosmart Squrbo extract fan

2. Case Size/Curve Reference

3. WP = Weatherproof enclosure

ESSE 2-WP | | |1 2 3

029 2085 820092

PERFORMANCE - ECOSMART SQURBO

Ecosmart Squrbo Supply


ECOSMART SQURBO


Fan

Stat

ic P

ress

ure

(Pa)

100

200

300

400

500

600

0 0.1 0.2 0.3 0.4 0.5 0.6 0


3

6

2

51

4

VType D


ISO 5801 2007AMCA 300

Fan

Stat

ic P

ress

ure

(Pa)

100

200

300

400

500

600

0 0.1 0.2 0.3 0.4 0.5 0.6


0

65

1 423

VType D


ISO 5801 2007AMCA 300

ELECTRICAL & SOUND

Motor Electric LPHW Inlet/ Sound Power levels (dB re 10-12W)

Power Heater kW FLC Outlet Octave Band mid frequency (Hz) Breakout

Curve Code Phase RPM (kW) (kW) L 2L (amps) Type 125 250 500 1K 2K 4K 8K dBA@3m

1 ESS1-E 1 2724 0.083 1.0 - - 0.32 I 61 62 61 49 43 34 26 30ESS1 1 - - - - - 0.32 O 69 62 63 51 45 42 32 30

2 ESS2-E 1 2285 0.095 1.5 - - 0.34 I 62 63 63 55 53 44 34 34ESS2-L/2L 1 - - - 3 4.5 0.34 O 70 66 66 59 57 53 42 34

3 ESS3-E 1 2544 0.19 2.0 - - 0.72 I 67 72 71 63 60 54 46 42ESS3-L/2L 1 - - - 4.5 6 0.72 O 74 73 74 68 67 64 53 42

4 ESS4-E 1 2313 0.24 3.0 - - 0.92 I 68 72 71 67 63 60 56 43ESS4-L/2L 1 - - - 5 8.5 0.92 O 74 74 74 72 71 68 64 43

5 ESS5-E 1 2313 0.26 4.5 - - 0.92 I 73 71 72 67 63 62 58 43ESS5-L/2L 1 - - - 5.5 10 0.92 O 79 74 76 72 72 69 66 43

6 ESS6-E 1 1110 0.46 12* - - 2.95 I 71 67 59 60 56 51 46 45ESS6-2L 1 - - - - 12 2.95 O 76 74 73 73 71 67 62 45

Note: there is no LPHW coil available for size 1 (ESS1). Unit has facility to open a remote motorised damper if frost protection is required.*3 - phase electrical supply required to electric heating coil.

PERFORMANCE - ECOSMART SQURBO SUPPLY

PERFORMANCE - ECOSMART SQURBO EXTRACT

ELECTRICAL & SOUND

Motor Sound Power levels (dB re 10-12W)

Power FLC SC Data Octave Band mid frequency (Hz) Breakout

Curve Code Phase RPM (kW) (amps) (amps) Type 125 250 500 1K 2K 4K 8K dBA@3m

1 ESSE1 1 2724 0.083 0.32 0.32 I 63 59 63 50 45 37 27 30O 68 62 65 51 48 44 34 30

2 ESSE2 1 2285 0.095 0.34 0.34 I 64 64 66 57 52 57 37 34O 71 66 68 61 56 65 44 34

3 ESSE3 1 2544 0.19 0.72 0.72 I 70 75 75 66 63 57 49 42O 76 75 76 70 69 66 55 42

4 ESSE4 1 2313 0.24 0.92 0.92 I 70 75 75 66 64 61 58 43O 76 75 79 69 69 63 65 43

5 ESSE5 1 2313 0.26 0.92 0.92 I 74 70 73 68 66 64 60 43O 78 69 77 73 72 70 66 43

6 ESSE6 1 1110 0.66 2.95 2.95 I 71 67 59 60 56 51 46 45I 76 74 73 73 71 67 62 45

The electrical and sound information in the table is nominal. Breakout dBA@3m is spherical, free field. Start currents (sc) are DOL other than for motors of 4 kW and above which is star delta. * Motor electrical supply, 1=1 phase (230V, 50Hz) 3=3phase (400V, 50Hz).

Unit has facility to operate motorised damper fan frost protection. I = Induct inlet. O = Induct outlet.

Please note: With Ecosmart, Ecosmart BMS & Ecosmart Commissioning options the units are pre-programmed with a soft start facility.

PERFORMANCE - ECOSMART SQURBO

Ecosmart Squrbo Extract



ECOSMART SQURBO


ECOSMART SQURBO SUPPLY & EXTRACT FANS

SPECIFICATIONThe unit shall be configured and arranged as detailed on the drawings and in

accordance with the schedule of equipment.

The unit shall be manufactured from acoustically lined, heavy gauge pre-

galvanised, corrosion resistant steel. The units shall provide exceptional thermal

and acoustic insertion. The general construction is to class A leakage.

The unit will be manufactured to provide a low height solution to enable it to be

located in low depth ceiling and floor voids. For ease of installation the unit shall

be provided with a single point mounting bracket with integrated, anti vibration

strips.

The fan impeller and motor shall be selected to provide the most energy

efficient solution conforming to part L regulations and shall be direct drive with

high efficiency motors to BS5000 as standard. The fan impeller shall be a high

efficiency backward curved centrifugal design, manufactured in galvanised steel.

The contractor shall allow for all necessary ductwork transformations to and

from the fan unit and any associated components in accordance with the

manufacturers recommendations, DW 144 and general good practice.

The unit and ancillaries shall be of the Ecosmart Squrbo type as manufactured

by Nuaire Ltd. All other components shall be in accordance with the

manufacturer’s specification.

CONTROL SPECIFICATIONThe fan unit shall be supplied with one of the following control options:-

ECOSMART CONTROLS The compact Ecosmart control system complete with all necessary controls to

facilitate the operation of the ventilation system. It shall be come complete with

an integral factory fitted Ecosmart PCB which will control the fan unit within the

desired design parameters and provide the interface between all external control

devices and the unit itself.

The unit shall have the following energy saving components integrally mounted,

pre-wired to interface with the purpose made PCB, all components pre-wired,

configured and factory fitted by the manufacturer: -




• Integral BMS interfaces – summer/winter switching, heating control, 0-10V

speed adjustment. (using ES - UCFT).

• Volt free failure and status indication.

• Integral air off temperature adjustment.

• Facility for remote temperature control.


• Multiple IDC sockets for interconnection of sensors or fans using pre-plugged

4-core low voltage cable.

• Volt free frost alarm/heat demand interface.

• Frost protection/hold off stat.

COIL TYPES AND CONTROLS (SUPPLY UNIT ONLY) • Low Pressure Hot Water.

The Low Pressure Hot Water heating coil shall be factory fitted with a 4-port

valve, double regulating valve, drain cocks and air vents. The actuator controlling

the 4-port valve shall be controlled via the on-board PCB by the off coil

temperature sensor. All components pre-piped, assembled and tested by the

manufacturers.

The control for the coils shall be fully integrated and shall maintain a constant


temperatures below 4 degrees C, fully open the 4-port valve and only start the

fan when the temperature at the filter has risen above the designated set point.

Unit shall have contacts which shall act as a frost alarm and/or signal boiler and

circulating pumps to switch on.

ELECTRIC HEATER BATTERY (SUPPLY UNIT ONLY) The Electric Heater Battery shall be factory fitted and pre-wired to an integral

closed loop thyristor control.

The Ecosmart Supply and Extract Fan unit shall have a 5 year warranty.

All equipment to be as manufactured by Nuaire Ltd.


029 2085 820094

ECOSMART BOXER AHU STANDARD CONFIGURATIONS

COMPLETE PACKAGED AIR HANDLING UNITS WITH ALL THE

NECESSARY CONTROLS.

95nuaire.co.uk


ECOSMART BOXER


VERY QUIET 25mm double skinned panels provide better

acoustic and thermal properties over conventional

AHU’s.

REDUCE INSTALLATION TIMEAll components are pre-assembled, wired and

tested at the Nuaire manufacturing facility. Units

are delivered conveniently in sections for easy site

assembly.

SIMPLE PRECISE COMMISSIONINGMinimum and maximum ventilation rates precisely

set and limited at AHU requiring no throttling

dampers.

ENERGY EFFICIENTAll models have Ecosmart controls built in, which

provide the most energy efficient and cost effective

solution.

PART L AND ENERGY EFFICIENTFan impellers are selected for optimum efficiency

and noise characteristics. Motors are IE2 to BS 5000

direct drive and high efficiency belt drive.

IMPROVED LIFE CYCLE/NO SYSTEMOVERLOADSEcosmart is pre-programmed to automatically give

a soft start function which prevents electrical

overloading and minimises mechanical wear.

LONG LASTINGEach section is manufactured from a highly rigid

pentapost framework with heavy gauge AluzincY,

corrosion resistant steel panels.

CONSTANT PRESSURE CONTROLAVAILABLEFor further information contact Nuaire.

COIL OPTIONSDX & chilled water coils are available, call Nuaire

for further details.

Note: Undressed coils are also available.

WARRANTYEcosmart Boxer has a 5 year warranty.

BENEFITS

ANCILLARIES & COMPONENT OPTIONS:

Vertical and horizontal heat exchangers. Base frames. DX Coils. Filter sizes 1 & 2 = G4 panel, sizes 3 - 7 = G4 bag or G4 bag & F7 bag.

Weather terminals. Silencers. Dampers. Monometrer.

029 2085 820096

PERFORMANCE - ECOSMART BOXER SIZES 1 and 2

Ecosmart Boxer supply unit filter and heating coil


ECOSMART BOXER


Casing

Code descriptions

1. Ecosmart Boxer range

2. S = Supply

EX = Extract

3. Size 1 - 2

4. L = Low Pressure hot water heater battery

LC = Low Pressure hot water heaterbattery and CHCW chilled water cooling coil

LD = Low Pressure hot water heaterbattery and DX cooling coil

ED = Electric heater battery and

DX = Direct expansion (refrigerant typecoil)

Note: If no Ecosmart control is requiredexample code would be: BHS2NC-LC.

If fan control only is required (undressedcoils) example code would be: BHS2FC-LC.

Fan

Stat

ic P

ress

ure

(Pa)

100

200

300

400

500

600


1

1H 2H

2

0 0.5 1.0 1.5 0

Fan

Stat

ic P

ress

ure

(Pa)

100

200

300

400

500

600


1

1H 2H

2

0 0.5 1.0 1.5 0

Fan

Stat

ic P

ress

ure

(Pa)

100

200

300

400

500

600


1

1H

2H

2

0 0.5 1.0 1.5

VISO 5801 2007

Tested in duct

0

VISO 5801 2007

Tested in duct

VISO 5801 2007

Tested in duct

ESBH S - 2 - LC | | | |1 2 3 4

Ecosmart Boxer sizes 1 and 2.

Ecosmart Boxer supply Unit filter and heating and cooling coil

Ecosmart Boxer fan unit only

97nuaire.co.uk

PERFORMANCE - ECOSMART BOXER SIZES 1 and 2



ECOSMART BOXER


ELECTRICAL & SOUND

Motor Electric Fan Input Ducted sound power levels dB re 1pW Breakout

Rating Coil Data Power Data dBA@

Curve (kW) (kW) (watts) RPM Type 125 250 500 1K 2K 4K 8K 3m

1 1.28 18 1110 1272 I inlet 73 67 57 59 59 54 45 25O outlet 77 75 77 78 78 73 67

1H 1.13 18 1620 1480 I inlet 72 66 62 58 58 52 42 24O outlet 77 74 75 76 76 72 64

2 1.6 24 1620 960 I inlet 72 66 62 58 58 52 42 24O outlet 77 74 75 76 76 72 64

2H 1.6 24 1600 1065 I inlet 79 74 69 69 65 60 54 33O outlet 81 81 76 76 72 69 63

EXTRACT

FLC SC

Curve Code Phase (amps) (amps)

1 ESBHEX1 1 4.84 4.84

1H ESBHEX1H 1 7.3 7.3

2 ESBHEX2 1 6.4 6.4

2H ESBHEX2H 1 9.4 9.4

SUPPLY WITH ELECTRIC HEATER

Total FLC Total SC


1 ESBHS1-E 3 29.9 4.9

1H ESBHS1H-E 3 32.2 7.22

2 ESBHS2-E 3 40.7 7.32

2H ESBHS2H-E 3 42.8 9.4

SUPPLY WITH ELECTRIC HEATER & COOLING COIL

FLC SC


1 ESBHS1-EC 3 29.5 4.8

1H ESBHS1H-EC 3 32.2 7.2

2H ESBHS2H-EC 3 42.4 9.0

SUPPLY WITH LPHW HEATER

FLC SC


1 ESBHS1-L 1 4.84 4.84

1H ESBHS1H-L 1 7.2 7.2

2 ESBHS2-L 1 6.4 6.4

2H ESBHS2H-L 1 9.0 9.0

SUPPLY WITH LPHW HEATER & DX COOLING COIL

FLC SC


1 ESBHS1-LD 1 0.0 0.0

1H ESBHS1H-LD 1 5.2 5.2

2 ESBHS2-LD 1 0.0 0.0

2H ESBHS2H-LD 1 9.4 9.4

SUPPLY WITH ELECTRIC HEATER & DX COOLING COIL

FLC SC


1 ESBHS1-ED 3 29.5 4.84

1H ESBHS1H-ED 3 32.2 7.22

2 ESBHS2-ED 3 40.7 7.32

2H ESBHS2H-ED 3 42.8 9.4

Flow valve setting

Unit Frost Cooling Heating

Size Coils In Out Coils In Out Coils In Out

1 0.75BSP 0.75BSP 1 BSP 1 BSP 1.25BSP 1.25BSP

2 0.75BSP 0.75BSP 1.25BSP 1.25BSP 1.25BSP 1.25BSP

SUPPLY WITH LPHW HEATER & COOLING COIL

FLC SC


1 ESBHS1-LC 3 4.84 4.84

1H ESBHS1H-LC 3 5.2 5.2

2 ESBHS2-LC 3 6.4 6.4

2H ESBHS2H-LC 3 9.0 9.0

For wiring diagrams refer to pages 110.

DX COIL DATA

Max Air kW Evap. PD Conn

Unit Flow Rating temp through size

Size m3/s R407C deg C Coil KPa

1 0.4 8 5 10 2x12&16od

2 0.7 13.5 5 16 2x12&22od

029 2085 820098


Ecosmart BOXER sizes 1 and 2


ECOSMART BOXER


For component ‘Z’ factors please refer to page 109.

DIMENSIONS (mm) & WEIGHTS (KG)

ESBHEX* ESBHS*L/E ESBHS* LC/LD, ED/EC

Heating & Cooling

Size L W L W L W B C D dia D1

1 700 84 1000 132 1600 170 954 530 400 342

2 1000 117 1130 185 1730 264 954 670 500 342

Length

D1

B

C

D dia

Model shown: size 1 and 2 (left hand LPHW supply).Model shown: size 1 and 2 (right hand LPHW supply).

Model shown: size 1 and 2 (right hand electric supply). Model shown: size 1 and 2 (left hand electric supply).

Model shown: size 1 and 2 (right hand extract). Model shown: size 1 and 2 (left hand extract).

Airflow Airflow

NB: Units are handed left hand side as standard. (L=Length, W=Weight).

Right hand side is available on request.



ECOSMART BOXER


PERFORMANCE - ECOSMART BOXER SIZES 3 - 7

Ecosmart Boxer supply unit filter and heating coil

Casing

Code descriptions

1. Ecosmart Boxer range

2. S = Supply

EX = Extract

3. Size 3 - 7

4. L = Low Pressure hot water heaterbattery

LC = Low Pressure hot water heaterbattery and CHCW chilled water cooling coil

LD = Low Pressure hot water heaterbattery and DX cooling coil

ED = Electric heater battery and

DX = Direct expansion (refrigerant typecoil)

Note: If no Ecosmart control is requiredexample code would be: BHS3NC-LC.

If fan control only is required (undressed coils) example code wouldbe: BHS3FC-LC.

Please note: Sizes 3 - 7 do not havefilters included as standard.

Fan

Stat

ic P

ress

ure

(Pa)

200

400

600

800

1000

1200


3

4 5

6

0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 0

7

Fan

Stat

ic P

ress

ure

(Pa)

200

400

600

800

1000

1200


3 4

5

6

0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 0

7

Fan

Stat

ic P

ress

ure

(Pa)

200

400

600

800

1000

1200


3

56

0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 0

7

VISO 5801 2007

Tested in duct

VISO 5801 2007

Tested in duct

VISO 5801 2007

Tested in duct

4

ESBH S - 3 - LC | | | |1 2 3 4

Ecosmart Boxer sizes 3 - 7

N.B. Unit air volume flowrates are calculated by component velocity.

Ecosmart Boxer Supply unit filter and heating and cooling coil

Ecosmart Boxer fan unit only

PERFORMANCE - ECOSMART BOXER SIZES 3 - 7

029 2085 8200100


ECOSMART BOXER


Z FACTORS FOR ANCILLARIES

Casing Module 1 2 3 4 5 6 7

Silencer 102 41 20 11 8 3.1 2

Damper 61 25 12 6.8 4.8 1.9 1.2

Frost coil LPHW 122 50 23 14 9.6 3.8 2.4

Frost coil electric 122 50 23 14 9.6 3.8 2.4

Weather cowl 61 25 12 6.8 4.8 1.9 1.2

Plate heat exchanger 612 148 117 68 48 1.9 12

H or V

For wiring diagrams refer to pages 110.

CODING

Supply with Supply with

Supply with LPHW Heater LPHW Heater &

Extract LPHW Heater & Cooling Coil DX Cooling Coil FLC SC

Curve Code Code Code Code (amps) (amps)

3 ESBHEX3 ESBHS3-L ESBHS3-LC ESBHS3-LD 5 5



6 ESBHEX6 ESBHS6-L ESBHS6-LC ESBHS6-LD 8.5 8.5


ELECTRICAL & SOUND

Motor Electric Fan Input Ducted sound power levels dB re 1pW Breakout

Rating Coil Data Power Data dBA@

Curve (kW) (kW) (watts) RPM Pole Phase Type 125 250 500 1K 2K 4K 8K 3m

3 2.2 27 1.584 1920 4 3 I inlet 84 81 82 76 73 67 62 40O outlet 87 82 81 75 71 66 62

4 3 36 2.407 2160 2 3 I inlet 87 84 85 79 76 70 65 43O outlet 90 85 84 78 74 69 65

5 4 54 3.132 2340 2 3 I inlet 89 86 87 81 78 72 67 45O outlet 92 87 86 80 76 71 67

6 4 54 4.035 1780 4 3 I inlet 84 86 83 80 77 72 65 43O outlet 84 84 84 85 80 74 66

7 5.5 54 5.177 1630 4 3 I inlet 86 91 85 81 79 74 69 45O outlet 87 90 87 86 82 75 70

CODING

Supply with Supply with

Electric Heater & Supply with Electric Heater

DX Cooling Coil Electric Heater & Cooling Coil FLC SC

Curve Code Code Code (amps) (amps)

3 ESBHS3-ED ESBHS3-E ESBHS3-EC 5 27



6 ESBHS6-ED ESBHS6-E ESBHS6-EC 83.5 8.5


Unit Frost Coils Cooling Coils Heating Coils

Size In Out In Out In Out

3 1 BSP 1 BSP 1.25BSP 1.25BSP 1.25BSP 1.25BSP

4 1 BSP 1 BSP 1.25BSP 1.25BSP 1.5BSP 1.5BSP

5 1.25BSP 1.25BSP 1.5BSP 1.5BSP 2 BSP 2 BSP

6 1.25BSP 1.25BSP 2 BSP 2 BSP 2 BSP 2 BSP

7 1.5BSP 1.5BSP 2 BSP 2 BSP 2 BSP 2 BSP

Flow valve setting.

DX COIL DATA

Max Air kW Evap. PD Conn

Unit Flow Rating temp through size

Size m3/s R407C deg C Coil KPa

3 1.0 19 5 18 2x12&22od

4 1.4 27 5 15 2x12&28od

5 1.9 37 5 13 2x22&35od

6 2.5 48 5 11 2x22&35od

7 3.5 68 5 11 2x22&42od



ECOSMART BOXER



Ecosmart BOXER size 3 - 7

DIMENSIONS (mm) & WEIGHTS (KG)

ESBHEX* ESBHS*L/E ESBHS*

Heating & Cooling

Size L W L W L W B C E F G H

3 1200 199 2400 402 3000 529 800 800 373 403 600 350

4 1200 243 2400 442 3000 590 1000 800 373 535 600 450

5 1200 255 2400 490 3000 600 1000 1000 373 535 600 450

6 1500 390 2700 702 3300 858 1300 1000 557 479 600 500

7 1500 507 2700 913 3300 1115 1300 1300 638 638 600 500

Length

E

B

H

F

G

Model shown: size 7 (left hand with DX cooling coil).Model shown: size 7 (right hand with DX cooling coil).

Model shown: size 7 (right hand supply with electric heater). Model shown: size 7 (left hand supply with electric heater).

Model shown: size 7 (right hand with cooling coil). Model shown: size 7 (left hand with cooling coil).

C

Airflow Airflow

NB: Units are handed left hand side as standard. (L=Length, W=Weight).

Right hand side is available on request.

ECOSMART BOXER SIZES 3 - 7

029 2085 8200102


ECOSMART BOXER


Model shown: size 7 (left hand supply with electric heater and DX coil).Model shown: size 7 (right hand supply with electric heater and DX coil).

Model shown: size 7 (right hand supply with LPHW heater). Model shown: size 7 (left hand supply with LPHW heater).

Model shown: size 7 (right hand supply with electric heater and cooling coil). Model shown: size 7 (left hand supply with electric heater and cooling coil).

Model shown: size 7 (right hand supply with LPHW heater and cooling coil). Model shown: size 7 (left hand supply with LPHW heater and cooling coil).).



ECOSMART BOXER


ECOSMART BOXER SIZES 3 - 7

Model shown: size 7 (left hand supply with LPHW heater and DX cooling coil).Model shown: size 7 (right hand supply with LPHW heater and DX cooling coil).

Model shown: size 7 (right hand with extract). Model shown: size 7 (left hand with extract).

Please note: Sizes 3 - 7 do not have filters included as standard.

029 2085 8200104


ECOSMART BOXER COILS FOR LPHW


82/71

80/60

60/40

ECOSMART BOXER Size 1 and 2 2 ROW Air Volume Flow rate (m3/s) 0.6 0.4 0.2Water Heat Air Off Water flow Water dp Heat Air Off Water flow Water dp Heat Air Off Water flow Water dpon/off Air On Output C rate Output C rate Output C rate C C (kW) C (l/s) (kPa) (kW) C (l/s) (kPa) (kW) C (l/s) (kPa)

-3 25 31 0.556 11.5 19 36 0.424 7.1 10.8 41 0.242 2.743 11.5 35 0.514 10 17.6 39 0.392 6.3 10 44 0.224 2.409 21 38 0.472 8.6 16 42 0.36 5.4 9.2 47 0.206 2.0815 19.2 41 0.428 7.3 14.8 45 0.32 4.6 8.4 50 0.188 1.78

-3 21.4 26 0.26 3.2 16 30 0.2 1.98 9.4 35 0.114 0.763 19.4 30 0.238 2.72 15 33 0.182 1.69 8.6 38 0.104 0.659 17.6 33 0.214 2.27 13.4 36 0.164 1.41 7.8 41 0.094 0.5515 15.6 36 0.19 1.85 12 39 0.146 1.16 7 43 0.084 0.45

-3 14 16 0.17 1.53 10.6 19 0.13 0.95 6 21 0.072 0.353 12 20 0.146 1.18 9.2 22 0.112 0.74 5 24 0.062 0.279 10 23 0.122 0.87 7.6 24 0.092 0.53 4 26 0.05 0.1915 8 26 0.096 0.58 6 27 0.072 0.35 3.6 28 0.046 0.16

82/71

80/60

60/40

82/71

80/60

60/40

82/71

80/60

60/40

82/71

80/60

60/40

Conn

ection size

22mm

15mm

15mm

Conn

ection size

Conn

ection size

2”

1.25”

1.25”

1.25”

1”

1”

Conn

ection size

2”

1.5”

1.5”

2”

1.5”

1.5”

Conn

ection size

ECOSMART BOXER Size 3 2 ROWAir Volume Flow rate (m3/s) 1.7 1.3 1Water Heat Air Off Water flow Water dp Heat Air Off Water flow Water dp Heat Air Off Water flow Water dpon/off Air On Output C rate Output C rate Output C rate C C (kW) C (l/s) (kPa) (kW) C (l/s) (kPa) (kW) C (l/s) (kPa)

-3 60 26 1.32 11 54 31 1.2 9.4 46 35 1 7.43 55 29 1.22 9.6 50 35 1.1 8.3 43 38 0.96 6.69 50 33 1.1 8.2 46 38 1 7.2 40 41 0.88 5.815 45 37 0.97 7 41 41 0.92 6.2 36 44 0.8 5

-3 50 21 0.61 3.4 45 26 0.56 2.9 39 29 0.48 2.333 45 25 0.55 2.83 41 29 0.5 2.42 36 32 0.44 2.079 40 28 0.49 2.37 37 32 0.45 2.06 32 35 0.39 1.7215 35 32 0.43 1.93 33 36 0.4 1.71 28 38 0.35 1.45

-3 32 12 0.39 1.66 29 15 0.35 1.39 25 17 0.3 1.143 27 16 0.33 1.28 25 19 0.3 1.10 21 20 0.26 0.929 22 20 0.27 0.94 20 22 0.24 0.78 17 23 0.21 0.6615 17 23 0.2 0.59 15 24 0.19 0.54 14 26 0.16 0.43

ECOSMART BOXER Size 5 2 ROW Air Volume Flow rate (m3/s) 2.1 1.8 1.4Water Heat Air Off Water flow Water dp Heat Air Off Water flow Water dp Heat Air Off Water flow Water dpon/off Air On Output C rate Output C rate Output C rate C C (kW) C (l/s) (kPa) (kW) C (l/s) (kPa) (kW) C (l/s) (kPa)

-3 94 34 2.1 12.9 86 36 1.9 11 72 39 1.6 8.23 87 37 1.9 11.3 79 39 1.77 9.7 67 42 1.48 7.39 80 40 1.78 9.8 73 42 1.63 8.5 61 45 1.36 6.415 73 43 1.62 8.4 67 45 1.48 7.3 56 48 1.24 5.5

-3 81 29 0.99 3.9 74 31 0.91 3.4 62 34 0.76 2.593 74 32 0.91 3.4 68 34 0.83 3.05 57 37 0.69 2.239 67 35 0.82 3.00 61 37 0.75 2.60 51 39 0.63 1.9315 60 38 0.73 2.51 55 40 0.67 2.19 46 42 0.56 1.61

-3 54 18 0.66 2.15 49 19 0.6 1.84 41 21 0.5 1.353 47 21 0.57 1.71 43 22 0.52 1.48 36 24 0.43 1.079 39 24 0.48 1.31 36 25 0.43 1.10 30 26 0.36 0.8115 32 27 0.38 0.91 29 28 0.35 0.80 24 29 0.29 0.58

ECOSMART BOXER Size 6 2 ROW Air Volume Flow rate (m3/s) 3.9 3 2Water Heat Air Off Water flow Water dp Heat Air Off Water flow Water dp Heat Air Off Water flow Water dpon/off Air On Output C rate Output C rate Output C rate C C (kW) C (l/s) (kPa) (kW) C (l/s) (kPa) (kW) C (l/s) (kPa)

-3 157 30 3.5 11.8 139 35 3.1 9.9 106 40 2.35 6.63 144 34 3.2 10.4 128 38 2.85 8.8 98 43 2.17 5.99 132 37 2.9 9.1 117 41 2.61 7.7 90 46 1.99 5.315 119 40 2.6 7.9 106 44 2.36 6.7 81 48 1.8 4.6

-3 131 25 1.6 3.9 116 29 1.42 3.3 89 33 1.1 2.283 118 28 1.44 3.4 105 32 1.28 2.87 81 36 0.99 1.979 106 31 1.29 2.92 94 35 1.15 2.47 72 38 0.88 1.6715 93 35 1.13 2.42 83 38 1 2.03 64 41 0.78 1.41

-3 83 14 1 2.04 73 17 0.89 1.73 56 20 0.67 1.143 70 18 0.85 1.63 62 20 0.75 1.36 47 22 0.57 0.919 56 21 0.68 1.19 50 23 0.61 1.02 37 24 0.45 0.6515 42 24 0.51 0.80 37 25 0.45 0.66 25 25 0.31 0.39

ECOSMART BOXER Size 7 2 ROWAir Volume Flow rate (m3/s) 4.8 4.2 3.2Water Heat Air Off Water flow Water dp Heat Air Off Water flow Water dp Heat Air Off Water flow Water dpon/off Air On Output C rate Output C rate Output C rate C C (kW) C (l/s) (kPa) (kW) C (l/s) (kPa) (kW) C (l/s) (kPa)

-3 201 31 4.5 13 189 34 4.2 11.7 166 40 3.7 9.63 184 35 4.1 11.2 174 37 3.9 10.3 153 42 3.4 8.59 168 38 3.7 9.8 158 40 3.5 9 139 45 3.1 7.515 151 41 3.4 8.4 143 43 3.2 7.7 125 47 2.8 6.4

-3 161 25 1.97 4 152 27 1.86 3.8 134 32 1.64 3.23 145 28 1.77 3.5 137 30 1.67 3.3 121 34 1.48 2.669 128 31 1.56 2.95 121 33 1.48 2.72 107 37 1.31 2.24 15 111 34 1.36 2.43 106 36 1.29 2.24 93 39 1.14 1.85

-3 96 13 1.16 1.95 91 15 1.1 1.79 80 18 0.97 1.473 79 16 0.96 1.49 75 18 0.91 1.37 66 20 0.8 1.129 61 19 0.74 1.04 58 20 0.7 0.95 50 22 0.61 0.7715 39 22 0.48 0.57 36 22 0.43 0.48 29 23 0.35 0.35

For further assistanceplease call Nuaire. Note:dp figures do not include 3 port valve. Approximately doublethese figures when valvesare included.


Example of horizontal unit with weather kit.

Example of stacked unit with weather kit.

WEATHER ROOF FOR ECOSMART BOXER

For further information please contact Nuaire.



ECOSMART BOXER ANCILLARIES


80mm

A B

C

B A

C

SILENCER MODULESSplitters are faced with perforated sheet lined to prevent particle migration and filled withhigh density mineral wool.

MOTORISED DAMPERSOpposed blade design with quick fit flanges.240V Open/Shut model (B) for efficient backdraught protection and 24V modulatingversion (M) for balancing and control.

Unit Code A B C Weight (Kg)

ESBSIL1 900 954 530 70

ESBSIL2 900 954 670 90

ESBSIL3 900 800 800 95

ESBSIL4 900 1000 800 96

ESBSIL5 900 1000 1000 124

ESBSIL6 900 1300 1000 150

ESBSIL7 900 1300 1300 192

Unit A Weight (Kg)

ESBD1 165 12

ESBD2 165 14

ESBD3 165 19

ESBD4 165 23

ESBD5 165 28

ESBD6 165 30

ESBD7 165 34

Note: Dimensions B & C are to suit unit supplied.

Also available: motor open/spring return option.Code: ESBD* MO/SR.

DYNAMIC ATTENUATION VALUES (at maximum velocity)

Length 125 250 500 1K 2K 4K 8K

900 6 8 18 22 20 16 15

1200 7 11 26 31 30 23 20

Note: silencer cross sectional area matches theEcosmart Boxer unit.

BASE FRAME(Please contact Nuaire for further details).Provided as standard on sizes 3 - 7. Optional extras on sizes 1 and 2.

Z FACTORS FOR ANCILLARIES

Casing Module 1 2 3 4 5 6 7

Silencer 102 41 20 11 8 3.1 2

Damper 61 25 12 6.8 4.8 1.9 1.2

Frost coil LPHW 122 50 23 14 9.6 3.8 2.4

Frost coil electric 122 50 23 14 9.6 3.8 2.4

Weather cowl 61 25 12 6.8 4.8 1.9 1.2

Plate heat exchanger 612 148 117 68 48 1.9 12

For further ancillaries please refer to Ducting and Ancillaries section or call Nuaire.

FROST COIL = LPHW & ELECTRIC600mm long section to suit unit size selected.For details contact Nuaire.

A B

C

VERTICAL HEAT EXCHANGERA plate exchanger core assembly providingefficient heat transfer between supply andextract air streams. An integral drip tray isincorporated with a 22mm drain connection.The tray is insulated to prevent secondarycondensation.

Length Width Height

Unit A B C Weight (Kg)

ESBHX1 1000 954 1060 150

ESBHX2 1130 954 1340 180

ESBHX3 1200 800 1600 210

ESBHX4 1400 1000 1600 263

ESBHX5 2200 1000 2000 360

ESBHX6 2200 1300 2000 440

ESBHX7 2500 1300 2600 594

HORIZONTAL HEAT EXCHANGERHeat exchanger complete with integral droptray with a 22mm drain connection.

Length Width Height


ESBHX1H 1750 2000 530 150

ESBHX2H 1425 2000 670 180

ESBHX3H 1200 1600 800 200

ESBHX4H 1625 2000 800 280

ESBHX5H 2000 2000 1000 360

ESBHX6H 2200 2600 1000 600

ESBHX7H 2200 2600 1300 594

ESBBF2* - Available in a variety of lengths to suit unit sizes 1 - 7.

A

BC

029 2085 8200106


ECOSMART BOXER WIRING


WIRING - ECOSMART BOXER SIZES 1 AND 2

ESBHS1, ESBHS2, ESBHEX1 and ESBHEX2

WIRING - ECOSMART BOXER SIZES 1 AND 2

ESBHS1-L, ESBHS2-L, ESBHS1-LD and ESBHS-2LD

ESBHS1-E and ESBHS2-E


FAU

LT

RUN

N

L

SL

DP

CL

N

RET


Min Max SL run on

Trickle Test

0 1

Pw r

Standby

Fan 1

Fan 2

Heatin g

Coolin g

Fault

Frost

Tx

Rx

Ecosmart

Heat demand signal

L

N

E Earth

Speed Controller

Run signal

Fault signal

HEA

T

D

AM

PER

DEM

AN

D

230V 50Hz 1ph mains

0V

0-10VBMS signal

Remove this link wire if: 1. a switched live signal is connected.2. an ES-PIR, ES-TC or BMS signal is connected.

Speed Controller

ON

OFF

AU

TOH

EATE

R/C

OO

L

Cooling demand

signal

Frost alarm

signal

Signal for

DX1 coil if fitted

Signal for

DX2 coil if fitted

25

30

25

Set air off temperature

of LPHW coil

L3

L2

L1

N

E

400V 50Hz 3ph +N mainssupply for fan and heater

Earth

Speed Controller

Adjustment for air off temperature.

Do not set temperature above 30 C

O



FAU

LT

RUN

N

L

SL

DP

CL

N

RET


Min Max SL run on

Trickle Test

0 1

Pw r

Standby

Fan 1

Fan 2

Heating

Cooling

Fault

Frost

Tx

Rx

Ecosmart

Heat demand signal

L

N

E

230V 50Hz

1ph mainsEarth

Run signal

Fault signal

HEA

T

D

AM

PER

DEM

AN

D

0V

0-10VBMS signal



FAU

LT

RUN

N

L

SL

DP

CL

N

RET


Min Max SL run on

Trickle Test

0 1

Pw r

Standby

Fan 1

Fan 2

Heating

Cooling

Fault

Frost

Tx

Rx

Ecosmart

Heat demand signal

L

N

E

230V 50Hz

1ph mainsEarth

Run signal

Fault signal

HEA

T

D

AM

PER

DEM

AN

D

0V

0-10VBMS signal


BMS MODES 3 TO 7

LNE Earth

Speed

Controller

230V 50Hz

1ph mains

Brown 24 Vac

Green 0 - 10 Vac

Whi ite Common

Actuator head, type Honeywell model M7410E1028

Actuator


FAU

LT

RUN

NL

SL

DPCLN

RET


Min Max SL run on

Trickle Test

0 1

PwrStandbyFan 1Fan 2HeatingCoolingFaultFrostTxRx

Ecosmart

This contact is not applicable

to BMS modelsRun signal

Fault signal

HEA

T

D

AM

PER

DEM

AN

D

0V

0-10V

BMS signal for fan speedNote: Do not reverse thepolarity as it may causedamage to the circuit

Remove this link wire

Earth L3

L2

L1

N

E


1 3 5

2 4 6(U) (V) (W)

L1 L2 L3 E

(U) (V) (W)

L3

L2

L1

12 13 14 15

5 6 7 8 9 10 11

12 13 14 15

CO

NTA

CTE

R

A1

A2

Actuator head, type Belimo model SM24-SR

24 Vac Warning: connect via safety isolating transformer

T

T

~

~

Y1 0...10V DCY2 0...20V phase cutU 2...10V DC

Y1 Y2 U SM24-SR

1 2 3 4 5


FAU

LT

RUN

NL

SL

DPCLN

RET


Min Max SL run on

Trickle Test

0 1


Ecosmart

This contact is not applicable

to BMS modelsRun signal

Fault signal

HEA

T

D

AM

PER

DEM

AN

D

0V

0-10V

BMS signal for fan speedNote: Do not reverse thepolarity as it may causedamage to the circuit

Remove this link wire

WIRING - ECOSMART BOXER SIZES 3 - 7 BMS MODES 1 AND 2





WIRING - ECOSMART BOXER SIZES 3 - 7 ESBHS3-L,ESBHS4-L, ESBHS5-L, ESBHS6-L AND ESBHS7, ESBHS3-LD, ESBHS4-LD, ESBHS5-LD, ESBHS6-LD AND ESBHS7-LD

WIRING - ECOSMART BOXER SIZES 3 - 7 ESBHS3-LC, ESBHS4-LC, ESBHS5-LC, ESBHS6-LCAND ESBHS7-LC

ESBHS3-E, ESBHS4-E, ESBHS5-E, ESBHS6-E AND ESBHS7-E


FAU

LT

RU

N

N

L

SL

DP

CL

N

RET


Min Max SL run on

Trickle Test

0 1

Pwr

Standby

Fan 1

Fan 2

Heatin g

Coolin g

Faul t

Frost

Tx

Rx

Ecosmart

Heat demand signal

Earth

Run signal

Fault signal

HEA

T

D

AM

PER

DEM

AN

D

L3

L2

L1

N

E


1 3 5

2 4 6(U) (V) (W )

L1 L2 L3 E

(U) (V) (W )

L3

L2

L1

12 13 14 15

5 6 7 8 9 10 11

12 13 14 15

CO

NTA

CTE

R

A1

A2

0V

0-10VBMS signal

Remove this link wire if: 1. a switched live signal is connected2. an ES-PIR, ES-TC or BMS signal is connected.


FAU

LT

RUN

N

L

SL

DP

CL

N

RET


Min Max SL run on

Trickle Test

0 1

Pw r

Standby

Fan 1

Fan 2

Heating

Coolin g

Fault

Frost

Tx

Rx

Ecosmart

Heat demandsignal

Run signal

Fault signal

HEA

T

D

AM

PER

DEM

AN

D

L3

L2

L1

N

E


1 3 5

2 4 6(U) (V) (W)

L1 L2 L3 E

(U) (V) (W)

L3

L2

L1

12 13 14 15

5 6 7 8 9 10 11

12 13 14 15

CO

NTA

CTE

R

A1

A2

1 2


Adjustment for air off temperature. Do not set temperature above 30 CO

LINE 1 LINE 2 LINE 3 Earth

L1 L2 L3 E

400V 50Hz 3ph supply for heater

Note: these controls are located

in the electric heater section

Heater over-temperature stat

Make connection after the unit has been assembled0V

0-10VBMS signal

Make connection after the unit has been assembled

R T

Sens

or

HEA

TSE

NS

B

A

B

Remove this link wire if: 1. a switched live signal is connected HTR 2. an ES-PIR, ES-TC or BMS signal is connected.

ESBHEX3, ESBHEX4, ESBHEX6 AND ESBHEX7


FAU

LT

RU

NN

L

SL

DP

CL

N

RET


Min Max SL run on

Trickle Test

0 1

Pw r

Standby

Fan 1

Fan 2

Heatin g

Coolin g

Faul t

Frost

Tx

Rx

Ecosmart

Heat demand signal

Earth

Run signal

Fault signal

HEA

T

D

AM

PER

DEM

AN

D

L3

L2

L1

N

E

400V 50Hz

3ph +N mains

1 3 5

2 4 6(U) (V) (W)

L1 L2 L3 E

(U) (V) (W)

L3

L2

L1

12 13 14 15

5 6 7 8 9 10 11

12 13 14 15

CO

NTA

CTE

R

A1

A2

ON

OFF

AU

TOH

EATE

R/C

OO

L


Frost alarm signal

Signal for DX1 coil if fitted


25

30

25Set air off

temperature

of LPHW coil


Outletsensor

Inletsensor

3

2

1

GREEN

BROWN

WHITE

Connect to LPHW actuator motor

SM24 motor set at

position A

0V

0-10VBMS signal

A

A

Remove this link wire if:1. a switched live signal is connected.2. an ES-PIR, ES-TC or BMS signal is connected.


FAU

LT

RU

N

N

L

SL

DP

CL

N

RET

Min Max SL run on

Trickle Test

0 1

Pw r

Standby

Fan 1

Fan 2

Heatin g

Coolin g

Faul t

Frost

Tx

Rx

Ecosmart

Heat demand signal

Earth

Run signal

Fault signal

HEA

T

D

AM

PER

DEM

AN

D

L3

L2

L1

N

E


1 3 5

2 4 6(U) (V) (W)

L1 L2 L3 E

(U) (V) (W)

L3

L2

L1

12 13 14 15

5 6 7 8 9 10 11

12 13 14 15

CO

NTA

CTE

R

A1

A2

ON

OFF

AU

TOH

EATE

R/C

OO

L


Frost alarm signal




Outletsensor

Inletsensor

3

2

1

25

30

25Set outlet air temperature of CW cooling coil

25

30

25Set outlet air temperature of LPHW coil

3

2

1

0V

0-10VBMS signal

A

A

A

GREEN

BROWN

WHITE

Connect to LPHW actuator motor SM24 motor set at position A

GREEN

BROWN

WHITE

Connect to CW coil actuator motor SM24 motor set at position A

Remove this link wire if:1. a switched live signal is connected.2. an ES-PIR, ES-TC or BMS signal is connected.


029 2085 8200108




ECOSMART BOXER WITH CONSTANT PRESSURE CONTROLS

SUPPLY FANS SIZE 3 AND ABOVE

Con

nect

or

Min Max SL run on

Trickle Test

0 1

Pwr

Standby

Fan 1

Fan 2

Heating

Cooling

Fault

Frost

Tx

Rx

Ecosmart

Pressure setting pot

Main control PCB

Pre-wired in factory to main control PCB via connector labelled 'P in'

Low High

To fan outlet; connectionto be made on site

To atmosphere throughfan casing

Pressure Sensor

Inverter

Set differential Pressure

EXTRACT FANS SIZE 3 AND ABOVE

Con

nect

or

Min Max SL run on

Trickle Test

0 1

Pwr

Standby

Fan 1

Fan 2

Heating

Cooling

Fault

Frost

Tx

Rx

Ecosmart


Main control PCB


Low High

To atmosphere throughcontrol casing

To fan inlet chamber

Pressure Sensor

Inverter


Airflow

D

Locate Pressure Tapping here

Silencer Fan Heater Filter

Control

2D min

SUPPLY FANS SIZE 1 AND 2

Con

nect

or

Min Max SL run on

Trickle Test

0 1

Pwr

Standby

Fan 1

Fan 2

Heating

Cooling

Fault

Frost

Tx

Rx

Ecosmart


Main control PCB

Pressure Sensor


High Low

To fan outlet, connection to be madeon site

To atmosphere through fan casing


PVC Tubing (supplied)

EXTRACT FANS SIZE 1 AND 2

Con

nect

or

Min Max SL run on

Trickle Test

0 1

Pwr

Standby

Fan 1

Fan 2

Heating

Cooling

Fault

Frost

Tx

Rx

Ecosmart


Main control PCB

Pressure Sensor


High Low

To atmosphere throughfan casing

To fan inlet chamber







FAU

LT

RUN

N

L

SL

DP

CL

N

RET



Min Max SL run on

Trickle Test

0 1

Pwr

Standby

Fan 1

Fan 2

Heating

Cooling

Fault

Frost

Tx

Rx

Ecosmart

Heat demand signal

L

N

E Earth

Speed Controller

Run signal

Fault signalH

EAT

DA

MPE

RD

EMA

ND

230V 50Hz 1ph mains

0V

0-10VBMS signal

SIZES 1 AND 2 Note: Inter connections between circuit boards are made in the factory.


FAU

LT

RUN

N

L

SL

DP

CL

N

RET



Min Max SL run on

Trickle Test

0 1

Pwr

Standby

Fan 1

Fan 2

Heating

Cooling

Fault

Frost

Tx

Rx

Ecosmart

Heat demand signal

Earth

Run signal

Fault signal

HEA

T

D

AM

PER

DEM

AN

D

L3

L2

L1

N

E


1 3 5

2 4 6(U) (V) (W)

L1 L2 L3 E

(U) (V) (W)

L3

L2

L1

12 13 14 15

5 6 7 8 9 10 11

12 13 14 15

CO

NTA

CTE

R

A1

A2

0V

0-10VBMS signal

Note: (1) Sizes 1 and 2 fans are rated at 230V ac, 50Hz single phase. All other

sizes are rated at 400V ac 50 Hz 3 phase.

(2) All electric heaters are rated at 400V ac 50 Hz 3 phase.

E

L1

L2

L3

Bus bar clamp

400V 50Hz3 phase

Connect over temperaturetrip to control circuit

TYPICAL ELECTRIC HEATER WIRING

ECOSMART BOXER FAN CONTROL ONLY

SIZES 3 TO 7 Note: Inter connections between circuit boards and inverter/contactor are made in the factory.

i There are no inrush starting currents quoted because the Ecosmart control

incorporates a soft starting speed control feature.

ii. The inverters are preset to match the fan requirements. Under normal

circumstances it should not be necessary to adjust them.

iii. Pay particular attention to the model type, recorded on the product rating

plate and connect as follows.

Power requirements

Model Flc fan Electric heater Flc only (1) max Kw heater (2)

BHSEX1FC, BHS1FC-L 4.8A

BHS1FC-E 4.8A 18 25A

BHSEX2FC, 7.3A











BHS7FC-E 11.4A 54 75A

029 2085 8200110


ECOSMART BOXER


ECOSMART BOXER UNITS SIZE 3 TO 7

AIR HANDLING UNIT SPECIFICATIONThe Air Handling Unit shall be configured and arranged as detailed on the

drawings and in accordance with the schedule of equipment. The units shall be

manufactured from a highly rigid pentapost framework with 25mm double

skinned infill panels. The panels shall contain inert high density infill.

Panel materials are heavy gauge Aluzinc corrosion resistant steel. The units shall

provide exceptional thermal and acoustic insertion. The general construction is

to class A leakage.

The fan impeller and motor shall be selected to provide the most energy

efficient solution conforming to part L regulations and shall be direct or belt

drive with IE2 high efficiency motors to BS5000 as standard. The fan impeller

shall be a high efficiency forward or backward curved centrifugal design,

manufactured in galvanised steel.

The Fan unit shall have a 5 year warranty.

The unit and ancillaries shall be of the Ecosmart Boxer type as manufactured by

Nuaire Ltd.

All other components shall be in accordance with the manufacturer’s

specification.

CONTROL SPECIFICATIONThe Air Handling Unit shall be supplied with one of the following control

options:-

1. ECOSMART CONTROLS - The compact Ecosmart control system complete with all necessary controls to

facilitate the operation of the ventilation system. It shall be come complete with

an integral factory fitted Ecosmart PCB which will control the fan unit within the

desired design parameters and provide the interface between all external control

devices and the unit itself.

The Air Handling Unit shall have the following energy saving components

integrally mounted, pre-wired to interface with the purpose made PCB, all

components pre-wired, configured and factory fitted by the manufacturer: -




• Integral BMS interfaces – summer/winter switching, heating control,


• Volt free failure and status indication.

• Integral air off temperature adjustment.

• Facility for remote temperature control.


• Multiple IDC sockets for interconnection of sensors or fans using pre-plugged

4-core low voltage cable.

• Volt free frost alarm/heat demand interface.

• Frost protection/hold off stat.

ECOSMART SYSTEM OPERATIONThe Ecosmart controls will enable the unit to automatically vary its speed as it

receives signals from one of the interconnected sensors. When the signal is

received the fan shall either increase speed gradually until the required level is

achieved or it will work on a trickle and boost principle. This will then and move

the fan duty point from trickle/background ventilation rate to the required boost

ventilation rate. Both the trickle and boost rates are infinitely variable, easy to

adjust and remove the need of a main balancing damper.

2. BMS INTERFACES The fan unit shall be provided with the following integrated BMS interfaces


following functions:-

Switch the unit on/off.

Switch from low speed to high speed.

Full speed control facility.

Switch the heating function on/off.

Switch the cooling function on/off.


system status.

• An integrated commissioning/speed control to accurately commission the

system, with minimum and maximum speeds easily adjusted via a miniature

dial, as recommended in Part L. This will enable the unit to be configured to

run between set parameters thus saving motor power and limiting noise.

• Commissioning set up - The fan unit shall be provided with an integrated

commissioning/speed control to accurately commission the system, as

recommended in Part L, minimum and maximum speeds easily adjusted

via miniature dial. The commissioning set up facility directly controls the

integrated speed control/frequency inverter.

3. NO CONTROL IS AVAILABLE (Example code BHS7NC-E).

COIL TYPES, HX AND CONTROLS The control for the coils shall be fully integrated and shall maintain a constant


temperatures below 4 degrees C, fully open the 3-port valve and only start

the fan when the temperature at the filter has risen above the designated set

point. Unit to have contacts which will act as frost alarm and/or signal boiler

to switch on.


111nuaire.co.uk


ECOSMART BOXER




HEATING COILS - LOW PRESSURE HOT WATER The Low Pressure Hot Water heating coil shall be manufactured from copper

tubing with high efficiency aluminium fins contained within a galvanised steel

frame, shall be factory fitted with a 3-port motorised diverting valve assembly

comprising the 3-port valve, double regulating valve, drain cocks aactuator

controlling the 3-port valve shall be control via the on-board PCB by the off coil

temperature sensor. All components pre-piped, assembled and tested by the

manufacturers.

HEATING COILS - ELECTRIC The Electric Heater Battery shall be factory fitted and pre-wired to an integral

closed loop thyristor control. The heat output can be configured on site to suit

the specific requirements.

COOLING COILS - CHILLED WATER The Chilled Water Coil shall be manufactured from copper tubing with high

efficiency aluminium fins contained within a galvanised steel frame, it shall be

factory fitted with a 3-port motorised diverting valve assembly comprising the

3-port valve, drain cocks and air vents. The actuator controlling the 3-port valve

shall be control via the on-board PCB by the off coil temperature sensor.

Coil supplied complete with an insulated condensate tray and moisture

eliminator. All components pre-piped, assembled and tested by the

manufacturer.

COOLING COILS – DX COILSThe DX Coil shall be manufactured from copper tubing with high efficiency

aluminium fins and droplet eliminator contained within a galvanised steel frame.

The coil shall be filled with dry nitrogen with the pipe connections capped.

It shall be factory fitted and tested by the AHU manufacturer.

Note: Fan control only example code is BHS7FC-LD.

HEAT EXCHANGERThe cross flow heat exchanger shall be complete with a motorised summer

bypass; this will be activated when the heating, cooling or ventilation switch

on the user control is switched to the ventilation position.

The Ecosmart controlled fan unit shall have a 5 year warranty.

Non Ecosmart fan controlled units will have a 3 year warranty.

All equipment shall be as manufactured by Nuaire Ltd.

*Suitable for 95% RH non condensing.

029 2085 8200112

UNDERBENCH CLASSROOM UNIT

INNOVATIVE MECHANICAL HEAT RECOVERY

AND VENTILATION SYSTEM

CHRIST’S COLLEGE SCHOOL, GUILDFORD CLIENT: SURREY COUNTY COUNCILCONSULTANT: DSDHA & ATELIER TENCONTRACTOR: WATES

The school was commissioned to replace the existing

1970’s facility that had serious physical problems,

while the school struggled with bullying and anti-

social behaviour.

DSDHA along with its support consultants won a

place on the Surrey County Council’s framework.

The 700 pupil Christ’s College was completed in

February 2009.

The building is designed to promote the feel of “one

big house” with its single entrance opening into an

atrium space used for assembly and group activities.

The building is not BREEAM certified but the design

was assessed as BREEAM Very Good and features a

concrete frame and floor slabs for thermal mass.

DIMENSIONS (mm)



UNDERBENCH CLASSROOM UNIT


Nuaire worked closely with Atelier Ten to design an

innovative mechanical heat recovery and ventilation

system. The building has thick cavity walls, intake and

outlet vents set in the brickwork underneath each

window, and a Nuaire XBOXER heat recovery unit

and fan unit in each classroom. Until the room comes

up to temperature, a damper cuts off the fresh air

supply and the unit works in re-circulation mode with

an electric heater battery to heat the air.

The classrooms have no additional heating source,

although the atrium and communal areas have under

floor heating. The system means that there is no need

for a boiler, pipes or associated costs.

The XBOXER heat recovery and ventilation system

integrated into the façade, the system had only ever

been used before in Germany. Although the

technology was straight forward the way the system

was put together was not. The contractor had to

construct a frame before the façade was built. A mock

up was constructed to test the air movement, the

acoustics and the reverberation.

School: Hélène Binet, classroom DSDHA.

XBOXER THERMAL WHEEL HEAT RECOVERY UNITS

HIGH EFFICIENCY ROTARY WHEEL - HELPING TO SAVE ENERGY AND

REDUCE CARBON EMISSIONS.

029 2085 8200114

115


XBOXER THERMAL WHEEL


nuaire.co.uk

HIGH EFFICIENCYUp to 85% efficient wheel combined with high

efficiency motors and backward curved impellers.

OPTIONAL ENERGY EFFICIENTCONTROLS Full Ecosmart control compatibility provides a



DUAL FANS/MOTORS Lower profile units with more uniform air

distribution over heater batteries/ exchangers.

NO CONTROL OPTION For control integration by others.

SPACE SAVING SOLUTIONStacked configuration reduces overall space

requirements and is ideal for plant room, or roof

top applications.

QUIETEST SOLUTIONThe range has 25mm double skinned infill panels,

helping to keep breakout noise to the lowest

possible levels.

HIGH PERFORMANCE RANGE6 case options available as standard with

performance up to 10m3/s. Contact Nuaire for

other duties or refer to AHU catalogue.

QUICK COMMISSIONING*Integrated supply and extract fan control allows

precise system duty adjustment and can be quickly

and accurately set *Ecosmart models only.

EASY MAINTENANCEThe unit provides access to both right and left sides.

It is recommended that clear space left be the full

width of the stacked unit.

INTEGRATED REGENERATION CONTROLOperates automatically by shutting the wheel

rotation down.

WEATHERPROOF DETAILCan be factory fitted or fitted on site, please refer

to page 128 for details.


available or as a duct mounted ancillary.


CONSTANT PRESSURE CONTROLAVAILABLEFor further information contact Nuaire.

DX COIL & CHILLED WATER COOLING OPTIONSPlease refer to page 134.

FLEXIBLE RANGEModels 4, 5 and 6 include LPHW or no heater.

Models 1, 2 and 3 include LPHW, no heater and

electric heater options.




and traps.


WARRANTYModels with Ecosmart control have a 5 year

warranty.

No control models have a 2 year warranty*.

*Contact Nuaire for further details.

Note: Thermal wheels have specific

maintenance requirements.

Refer to installation and maintenance manual.

BENEFITS

FEATURES INCLUDE:

With LPHW. Constant Pressure control option. Pressure independent Filter options. Frost coil option. (See page 00).balancing control(T1 & T2 LPHW models only).

029 2085 8200116




Fan

Stat

ic P

ress

ure

(Pa)

200

400

600

800

1000


0 0.5 1.0 1.5 2.0 2.5

1200

0

1

VType D


ISO 5801 2007AMCA 300

3

2

PERFORMANCE - XBOXER THERMAL WHEEL

Xboxer Thermal wheel sizes 1, 2 and 3

Casing

Code description (Example)

T1NC - TWB - L L 2 WP| | | | | | |1 2 3 4 5 6 7

1. = Type/Curve Ref. 2. = Ecosmart control as standard

NC = No control3. = Thermal wheel box4. = Component layout

L = Left handR = Right hand (Handings in direction of supply air)

5. = Type of heaterL = LPHW, N = No heater, E = Electric

6. = 2 row coil 7. = Optional Weather Roof



Motor Start Full load LPHW Breakout

Speed power current current Heater Induct Sound Power Levels dB re 1pW dBA Weight

Curve Code Phase (RPM) (kW) (amps) (amps) (kW) 63 125 250 500 1K 2K 4K 8K @3m Kg***

1 T1-TWB-** 1 1710 1.8 11.6 11.6 * Intake 75 74 76 72 73 71 66 69 45 395

Supply 79 79 81 78 79 77 73 66

Discharge 79 79 81 78 79 77 73 66

Extract 75 74 76 72 73 71 66 69

Breakout 72 68 71 61 57 55 56 50

2 T2-TWB-** 3 2140 2.1 3.5 3.5 * Intake 84 84 78 71 69 65 57 60 46 395

Supply 88 89 83 77 75 71 64 57

Discharge 88 89 83 77 75 71 64 57

Extract 84 84 78 71 69 65 57 60

Breakout 81 78 73 60 53 49 47 41

3 T3-TWB-** 3 2412 0.8 2.7 2.7 * Intake 60 69 72 72 66 65 60 69 47 847

Supply 69 78 82 82 82 80 77 66

Discharge 68 75 78 79 74 73 69 66

Extract 64 73 78 76 77 74 68 69

Units are supplied c/w with 2 No. G4 filters as standard. (F5 & F7 filters are available as integrated options on supply). Motor power and current loads are the total for both fans running together. Ecosmart models have a soft start function therefore the starting current is identical to the full load. ** Add relevant code for heater type. * For details on coils, codes refer to page 130.***Weights of units are for guidance and include control and no weather roof.

117nuaire.co.uk







A

B

C

D

E

DIMENSIONS (mm)

Code A B C Duct size D X E

T1-TWB 1470 1070 1163 949 X 494

T2-TWB 1470 1070 1163 949 X 494

T3-TWB 2000 1200 1676 1440 X 740

Model shown: T1-3-TWB-E (Electric heater). Includes Ecosmart control.Model shown: T1-3NC-TWB-E (Electric heater). No Ecosmart control.

Model shown: T1-3NC-TWB-DX (With DX coil). No Ecosmart control.

Note: Control box is integral.

Model shown: T1-3-TWB-DX (With DX coil). Includes Ecosmart control.

Model shown: T1-3NC-TWB-N (No heater). No Ecosmart control. Model shown: T1-3-TWB-N (No heater). Includes Ecosmart control.

Model shown: T1-3-TWB-L (LPHW). Includes Ecosmart control.Model shown: T1-3NC-TWB-L (LPHW). No Ecosmart control.

Supply

ExtractExhaust

Intake

029 2085 8200118




Fan

Stat

ic P

ress

ure

(Pa)

100

200

300

400

500

600


0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0

700

0

4

VType D


ISO 5801 2007AMCA 300

800

900

1000

1100

6

5



Casing






4 T4-TWB-** 3 1440 8.8 18 18 * Intake 83 93 89 82 77 80 80 61 53 1185

T4NC-TWB-** 1440 8.8 108 18 Supply 87 90 89 90 84 85 85 71

Discharge 88 90 90 91 83 85 86 58

Extract 86 92 92 85 80 83 83 74

Breakout 80 79 81 67 53 54 63 43

5 T5-TWB-** 3 1440 16 37 37 * Intake 87 88 85 83 83 82 81 79 52 2335

T5NC-TWB-** 1440 16 222 37 Supply 88 96 84 83 90 90 85 84

Discharge 90 98 86 85 92 92 87 86

Extract 89 90 87 85 85 84 83 81

Breakout 82 84 76 61 61 61 64 61

6 T6-TWB-** 3 960 22 45.6 45.6 * Intake 83 95 86 75 79 81 78 64 50 3565

T6NC-TWB-** 960 22 274 45.6 Supply 88 92 87 83 86 86 83 64

Discharge 88 92 87 83 86 86 83 64

Extract 84 96 87 76 80 82 79 65

Breakout 80 82 76 59 55 55 60 40

Units are supplied c/w with 2 No. G4 filters as standard. (F5 & F7 filters are available as integrated options on supply). Motor power and current loads are the total for both fans running together. Ecosmart models have a soft start function therefore the starting current is identical to the full load. ** Add relevant code for heater type. * For details on coils, codes refer to page 130.***Weights of units are for guidance and include control and no weather roof. Please contact Nuaire for further details.


T4NC - TWB - L L 2 WP| | | | | | |1 2 3 4 5 6 7


NC = No control3. = Thermal wheel box4. = Component layout

L = Left handR = Right hand (Handings in direction of supply air)

5. = Type of heaterL = LPHW, N = No heater, E = Electric

6. = 2 row coil 7. = Optional Weather Roof

119nuaire.co.uk







DIMENSIONS (mm)


T4-TWB 2800 1600 1600 1540 X 740

T5-TWB 3200 2000 2000 1940 X 940

T6-TWB 3800 2600 2600 2540 X 1240

N.B If CW or DX modules are included add 600mm to overall length.

Model shown: T4-6-TWB-N (No heater). Includes Ecosmart control.Model shown: T4-6-TWB-L (LPHW). Includes Ecosmart control.

Model shown: T4-6NC-TWB-L (LPHW). No Ecosmart control. Model shown: T4-6NC-TWB-N (No heater). No Ecosmart control.

A

B

C

D

E

Note: Access is from either side.

029 2085 8200120

XBOXER RUN AROUND COIL HEAT RECOVERY

NO CROSS CONTAMINATION, MAKES UNITS IDEAL FOR HYGIENE

SPECIFIC APPLICATIONS.

Note: for detailed

drawings contact Nuaire.

FEATURES INCLUDE:

121


XBOXER RUN AROUND COIL


nuaire.co.uk

ENERGY SAVINGSNuaire’s high-performance, run-around energy

exchanger can provide heat recovery efficiencies

typically up to 60%.

IDEAL FOR NEW BUILDING DESIGN ANDREFURBISHMENT The run-around coil as part of a system can help

reduce peak heating and cooling loads as well as

total heating and cooling loads.

SYSTEM EFFECTIVENESSA system's overall effectiveness can be much higher

than in the past (heat recovery efficiencies typically

up to 60%) using run-around-coil-tube heat

exchanger systems that are accurately designed for

maximum cost-effective performance.

SEPARATION ADVANTAGEThere is no possibility of cross contamination with

this type of heat recovery. Ideal for hygiene specific

applications.

OPTIONAL ENERGY EFFICIENTCONTROLSFull Ecosmart control compatibility provides a


interface and trickle and boost as standard

NO CONTROL OPTIONFor control integration by others.

SPACE SAVING SOLUTIONStacked configuration reduces overall space

requirements and is ideal for plant room, or roof

top applications.

QUIETEST SOLUTIONUnits have 25mm double skinned infill panels

helping to keep breakout noise to the lowest

possible levels. (See page 144 for 50mm double

skinned infill panels on the custom made units).

HIGH PERFORMANCE RANGE3 case options available as standard with

performance up to 10m3/s.

Contact Nuaire for other duties.

QUICK COMMISSIONING*Integrated supply and extract fan control allows

precise system duty adjustment and can be quickly

and accurately set.

*Ecosmart models only.

EASY INSTALLATIONAll RAC models are supplied in sections for delivery,

ready for site assembly.

RAC = Run around coil.

EASY MAINTENANCEThe unit provides access to both right and left sides.

It is recommended that clear space left be the full

width of the stacked unit.

INTEGRATED RAC CONTROL OUTPUTRAC control output can interface with RAC pump

system (by others) to minimise energy usage.

WEATHERPROOF PROTECTIONCan be factory fitted or fitted on site, please refer

to page 128 for further details.


available or as a duct mounted ancillary. Contact

Nuaire for details.

DX COIL & CHILLED WATER COOLING OPTIONSPlease refer to pages 134-137.

FLEXIBLE RANGERange includes LPHW or no heater.

Constant pressure control is available*.

*Contact Nuaire.



and traps.


WARRANTYModels with Ecosmart control have a 5 year

warranty.

No control models have a 2 year warranty*.

*Contact Nuaire for further details.

BENEFITS

With LPHW. Without heater. Run around energy exchanger. Constant Pressure control option. Frost coil option. (See page 132).

029 2085 8200122




Fan

Stat

ic P

ress

ure

(Pa)

100

200

300

400

500

600


0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0

700

0

4

VType D


ISO 5801 2007AMCA 300

800

900

1000

1100

6

5

PERFORMANCE - XBOXER RUN AROUND COIL

Xboxer Run around coil sizes 4, 5 and 6

Casing


R4NC - RAC - L 2 WP| | | | | |1 2 3 4 5 6


NC = No control3. = Run around coil4. = Unit type

L = LPHW, N = No heater5. = 2 row coil or 3 = 3 row coil6. = Optional Weather Roof

PERFORMANCE - XBOXER RUN AROUND COIL





4 R4-RAC-** 3 1440 8.8 18 18 * Intake 83 93 89 82 77 80 80 61 53 1020

R4NC-RAC-** 1440 8.8 108 18 Supply 87 90 89 90 84 85 85 71

Discharge 88 90 90 91 83 85 86 58

Extract 86 92 92 85 80 83 83 74

Breakout 80 79 81 67 53 54 63 43

5 R5-RAC-** 3 1440 16 37 37 * Intake 87 88 85 83 83 82 81 79 52 2335

R5NC-RAC-** 1440 16 222 37 Supply 88 96 84 83 90 90 85 84

Discharge 90 98 86 85 92 92 87 86

Extract 89 90 87 85 85 84 83 81

Breakout 82 84 76 61 61 61 64 61

6 R6-RAC-** 3 960 22 45.6 45.6 * Intake 83 95 86 75 79 81 78 64 50 3565

R6NC-RAC-** 960 22 274 45.6 Supply 88 92 87 83 86 86 83 64

Discharge 88 92 87 83 86 86 83 64

Extract 84 96 87 76 80 82 79 65

Breakout 80 82 76 59 55 55 60 40

Units are supplied c/w with 2 No. G4 filters as standard. (F5 & F7 filters are available as integrated options on supply). Motor power and current loads are the total for both fans running together. Ecosmart models have a soft start function therefore the starting current is identical to the full load. ** Add relevant code for heater type. * For details on coils, codes refer to page 130.***Weights of units are for guidance and include control and no weather roof. Please contact Nuaire for further details.

123nuaire.co.uk


Xboxer Run around coil sizes 4, 5 and 6





DIMENSIONS (mm)


R4-RAC 2800 1600 1600 1540 X 740

R5-RAC 3200 2000 2000 1940 X 940

R6-RAC 3800 2600 2600 2540 X 1240

N.B If CW or DX modules are included add 600mm to overall length.

Model shown: R4-6-RAC-N (No heater). Includes Ecosmart control.Model shown: R4-6-RAC-L (LPHW). Includes Ecosmart control.

Model shown: R4-6NC-RAC-L (LPHW). No Ecosmart control. Model shown: R4-6NC-RAC-N (No heater). No Ecosmart control.

A

B

C

D

E

Note: Access is from either side.

029 2085 8200124


XBOXER ANCILLARIES


XBOXER ANCILLARIES

ATTENUATOR MODULES

height

A B

C

B A

C

Attenuators are faced with perforated sheet lined to prevent particle migration and filled with high density mineral wool. Suitable for internal/external use.

Opposed blade design with quick fit flanges. 240V Open/Shut model for efficient back draught protection.(24V modulating version for balancing and controlavailable on request).


MD-TR-1 165 760 395 15

MD-TR-2 165 960 494 20

MD-TR-3 165 1200 590 40

MD-TR-4 165 800 800 19

MD-TR-5 165 1000 1000 28

MD-TR-6 165 1300 1300 34

Note: Dimensions B & C are to suit unit supplied.

DYNAMIC INSERTION LOSS (dB)

Length 125 250 500 1K 2K 4K 8K

900 6 8 18 22 20 16 15

BASE FRAME

MOTORISED DAMPER

Base Frame is included.

TWB & RAC WEATHER PROTECTION

DIMENSIONS (mm)

Unit Code A B C Weight (Kg*)

T/1 -TWB-*WP 1070 1470 112 40

T/2-TWB-*WP 1070 1470 112 50

T/3-TWB-*WP 1200 2000 100 60

T/R4-RAC/T4 TWB-*WP 1600 2800 160 56

T/R5-RAC/T5 TWB-*WP 2000 3200 195 91

T/R6-RAC/T5 TWB-*WP 2600 3800 248 138

*Weight of weather roof only.

WEATHER PROTECTION ROOF FOR XBOXER THERMAL WHEEL & RUN AROUND COIL

UNITS - SIZES 4, 5 AND 6*

*Note: Weather protection is also available for other stacked and horizontal units in the XBOXER range.For further information contact Nuaire. An example of a stacked unit with weather roof is shown below. Note: These roofs do not provide frost protection.

For Weather Protection add ‘WP’ to end of unit code i.e. R4-RAC-L WP.

CONDENSATE PUMP

Unit Code L x W x H Weight (Kg)

XB-CON-DR 267 x 51 x 64 1

DIMENSIONS (mm)

DIMENSIONS (mm)

DIMENSIONS (mm)

AB

C

Unit Code A B C Weight (Kg)

SIL-TR-4 900 1600 800 190

SIL-TR-5 1200 2000 1000 350

SIL-TR-6 1200 2600 1300 384

*Please contact Nuaire for further details and foroptions for T1-3.

Please contact Nuaire for manometers, guages,sensors, traps and drains, condensate pumps,access panels, view ports and bulkhead lights.

Unit Code Height of base frame

T1, T2 and T3 100

T4 80

T5 and T6 125

DIMENSIONS (mm)NON MOTORISED DAMPER

Non motorised dampers are available, contact Nuaire.

125


XBOXER COIL PERFORMANCE


nuaire.co.ukDownload specification from www.nuaire.co.uk/specifications

RUN AROUND COIL PERFORMANCE

Run around coil 20% ethylene glycolSupply air Power transferred Flow Coil dp

Intake Air temp. -3 deg C Q effy temp* kW rate kPaReturn Air temp. 22 deg C m3/s % C l/s Ex/Sup

R6-RAC 7.5 51 9.9 117 2 31 / 38

R6-RAC 5 58 11.5 88 2 31 / 38

R5-RAC 5 51 9.8 78 3 40 / 50

R5-RAC 3 54 10.6 49 2 20 / 25

R4-RAC 3 48 9 44 3.5 30 / 37

R4-RAC 2 55 10.8 34 2.5 22 / 26

* before main heating coil.

This table gives example values for a Run around Coil heat recovery system based on the overall airwaydimensions for the units listed.

This type of system has many variables that may be selected to match the required result, and therefore other output conditions may readily be achieved.

An example of this is where a run-around coil arrangement is selected to provide frost protection, giving a systemeffectively independent of the building's main heating provision.

Thermal WheelSupply air Power

Intake Air temp. -3 deg C Q effy temp* transferredReturn Air temp. 22 deg C m3/s % C kW

T6-TWB 10.1 63 15.8 228

T6-TWB 7.5 69 16.7 184

T6-TWB 5 76 17.8 129

T5-TWB 6.6 56 14.5 131

T5-TWB 4.5 64 15.9 102

T5-TWB 3 71 17.1 74

T4-TWB 4 54 14.2 77

T4-TWB 3 61 15.3 65

T4-TWB 2 69 16.7 49

T3-TWB 1.9 66 13.6 55

T3-TWB 1.4 71 14.9 43

T3-TWB 0.9 77 16.3 30

T2-TWB 1.2 67 13.8 35

T2-TWB 0.9 72 14.9 28

T2-TWB 0.6 77 16.3 20

T1-TWB 0.8 64 13.1 22

T1-TWB 0.5 72 15.1 16

T1-TWB 0.2 82 17.5 6.8

STANDARD THERMAL WHEEL PERFORMANCE

* before main heating coil.

This table gives a range of performance values for the standard thermal wheel models offered.

The principal variable in the thermal wheel performance is the airflow velocity, but wheels having alternative physical properties may be selected in some cases if necessary.

The values in the table above have been calculated using the following air conditions: Intake Air Temperature -3 Deg / 80% Relative Humidity; Return Air 22 Deg / 30% Relative Humidity.

029 2085 8200126

STANDARD COIL PERFORMANCE




Size 1 Air Volume Flow rate (m3/s) 0.72 0.36

Heat Air Off Water Flow Water Heat Air Off Water Flow WaterLPHWater Flow & Entering Air Output temp rate dp Output temp rate dp Flow & ReturnReturn Temp. (C) Temp (C) (kW) (C) (l/s) (kPa) (kW) (C) (l/s) (kPa) Connection size

82/71 -3 23 24 0.52 9.2 17 37 0.38 5.4 0.75" / 22mm3 21 28 0.48 8 16 39 0.35 4.6 0.75" / 22mm10 19 32 0.43 6.6 14 43 0.32 3.9 0.75" / 22mm15 18 35 0.4 5.7 13 45 0.3 3.4 0.75" / 22mm

80/60 � -3 20 20 0.24 3 15 31 0.18 3 0.75" / 22mm3 18 24 0.22 3 13 34 0.165 3 0.75" / 22mm10 16 28 0.2 3 12 37 0.15 3 0.75" / 22mm15 14 31 0.18 3 11 40 0.13 3 0.75" / 22mm

60/40 � -3 13 12 0.16 3 10 20 0.12 3 0.75" / 22mm3 11 15 0.14 3 8.5 22 0.1 3 0.75" / 22mm10 9 20 0.11 3 7 26 0.09 3 0.75" / 22mm15 7 24 0.09 3 6 28 0.07 3 0.75" / 22mm

Size 2 Air Volume Flow rate (m3/s) 1.1 0.75 0.5

Heat Air Off Water Flow Water Heat Air Off Water Flow Water Heat Air Off Water Flow WaterLPHWater Flow & Entering Air Output temp rate dp Output temp rate dp Output temp rate dp Flow & ReturnReturn Temp. (C) Temp (C) (kW) (C) (l/s) (kPa) (kW) (C) (l/s) (kPa) (kW) (C) (l/s) (kPa) Connection size

82/71 � -3 32.52 21.5 0.724 23.2 28.97 26.4 0.645 18.9 24.25 33.9 0.54 31.7 0.75" / 22mm3 29.9 25.9 0.665 20 26.55 30.5 0.591 16.1 22.2 37.5 0.494 11.7 0.75" / 22mm10 26.86 30.9 0.598 16.4 23.76 35.2 0.529 13.2 19.84 41.6 0.442 9.6 0.75" / 22mm15 24.7 34.4 0.55 14.1 21.79 38.5 0.485 11.3 18.18 44.5 0.405 12 0.75" / 22mm

80/60 � -3 28.57 18.3 0.349 6.4 25.43 22.8 0.31 5.2 21.39 29.5 0.261 3.8 0.75" / 22mm3 25.96 22.6 0.317 5.4 23.04 26.9 0.281 4.4 19.37 33.1 0.236 3.2 0.75" / 22mm10 22.93 27.6 0.28 4.3 20.27 31.5 0.247 3.5 17.04 37.1 0.208 3 0.75" / 22mm15 20.77 31,2 0.253 3.7 18.32 34.8 0.224 3 15.39 40 0.188 3 0.75" / 22mm

60/40 � -3 19.69 11.3 0.238 3.4 17.41 14.6 0.211 3 14.69 19.3 0.178 3 0.75" / 22mm3 17.07 15.6 0.207 3 15.05 18.6 0.182 3 12.7 22.7 0.154 3 0.75" / 22mm10 14.02 20.5 0.17 3 12.32 23.1 0.149 3 10.4 26.6 0.126 3 0.75" / 22mm15 11.82 24 0.143 3 10.38 26.2 0.126 3 8.76 29.2 0.106 3 0.75" / 22mm

Size 3 Air Volume Flow rate (m3/s) 1.8 0.9

Heat Air Off Water Flow Water Heat Air Off Water Flow WaterLPHWater Flow & Entering Air Output temp rate dp Output temp rate dp Flow & ReturnReturn Temp. (C) Temp (C) (kW) (C) (l/s) (kPa) (kW) (C) (l/s) (kPa) Connection size

82/71 � -3 81 34 1.81 8.7 56 49 1.26 4.9 1.25" / 35mm3 75 37 1.66 7.5 52 51 1.15 4.3 1.25" / 35mm10 67 41 1.49 6.3 46 53 1.04 3.6 1.25" / 35mm15 61 43 1.36 5.5 43 54 0.95 3.2 1.25" / 35mm

80/60 � -3 65 27 0.8 3 46 39 0.56 3 1.25" / 35mm3 59 30 0.72 3 42 41 0.51 3 1.25" / 35mm10 51 33 0.62 3 36 43 0.44 3 1.25" / 35mm15 45 36 0.55 3 32 44 0.39 3 1.25" / 35mm

60/40 � -3 37 15 0.47 3 27 22 0.33 3 1.25" / 35mm3 32 17 0.38 3 22 23 0.26 3 1.25" / 35mm10 22 20 0.27 3 11 20 0.13 3 1.25" / 35mm15 10 20 0.12 3 9 23 0.11 3 1.25" / 35mm

The thermal outputs in these tables represent the results that may be achieved with the range of standardised coils offered in this range of equipment.

Heating coils may of course be individually selected to meet project specific requirements.


*Please note that the pressure drops shown are for the bare coil only. Please contact Nuaire for further information.

127nuaire.co.uk

STANDARD COIL PERFORMANCE





Size 4 Air Volume Flow rate (m3/s) 4 3 2


82/71 -3 119 21.6 2.7 6.9 108 26.7 2.4 5.9 90.3 34.3 2 4.4 2" / 54mm3 110 25.6 2.5 6 99.5 30.3 2.2 5.1 81 38.4 1.8 3.7 2" / 54mm10 96 30 2.14 4.8 87 35.8 1.92 4.1 75 40.9 1.7 3.3 2" / 54mm15 90 33.6 2 4.4 89 34.6 2 4.3 69 43.4 1.53 3 2" / 54mm

80/60 � -3 98.5 17.3 1.3 3 89.3 21.7 1.1 3 74 28.5 0.91 3 2" / 54mm3 89 21.4 1.09 3 80.5 25.5 0.98 3 67 31.7 0.82 3 2" / 54mm10 77 26.2 0.95 3 70 29.8 0.86 3 58 35.3 0.71 3 2" / 54mm15 69 29.7 0.84 3 62 33 0.76 3 52 38 0.64 3 2" / 54mm

60/40 � -3 63 9.5 0.77 3 57 12.2 0.69 3 48 16.4 0.58 3 2" / 54mm3 52.4 13.6 0.64 3 48 15.9 0.58 3 40 19.4 0.49 3 2" / 54mm10 40.4 18.3 0.49 3 37 20.1 0.45 3 31 22.8 0.37 3 2" / 54mm15 31 21.5 0.38 3 28.5 22.9 0.35 3 23 25 0.28 3 2" / 54mm

Size 5 Air Volume Flow rate (m3/s) 6.6 4.5 3


82/71 � -3 287 30 6.4 11.1 249 39.1 5.5 8.9 180 51.9 4 5.4 2.5" / 67mm3 267 34.4 5.94 9.9 227 42.2 5.06 7.7 166 53.8 3.7 4.7 2.5" / 67mm10 238 38.7 5.29 8.2 202 45.8 4.5 6.4 149 55.9 3.3 4 2.5" / 67mm15 217 41.7 4.84 7.2 185 48.2 4.1 5.6 137 57.4 3.04 3.5 2.5" / 67mm

80/60 � -3 239 27.6 2.92 3.4 213 32.9 2.6 3 173 40.8 2.1 3 2.5" / 67mm3 216 31 2.64 3 191 36 2.34 3 156 43.3 1.9 3 2.5" / 67mm10 189 34.8 2.31 3 167 39.5 2.04 3 136 46 1.65 3 2.5" / 67mm15 174 36.4 2.13 3 149 41.9 1.83 3 121 47.8 1.48 3 2.5" / 67mm

60/40 � -3 162 15.7 1.97 3 140 20.6 1.7 3 114 25.9 1.38 3 2.5" / 67mm3 138 19.2 1.7 3 119 23.5 1.44 3 97 28.1 1.17 3 2.5" / 67mm10 109 23.3 1.33 3 94 26.6 1.14 3 77 30.4 0.93 3 2.5" / 67mm15 89 25.9 1.08 3 76 28.7 0.93 3 62 31.8 0.75 3 2.5" / 67mm

Size 6 Air Volume Flow rate (m3/s) 10.1 7.5 5


82/71 � -3 443 30.3 9.86 33.8 392 36.7 8.7 27.7 319 45.4 7.09 19.8 2.5" / 67mm3 405 34.1 9 29.2 358 40.1 8 23.9 291 48.1 6.5 17.1 2.5" / 67mm10 361 38.5 8.1 24.2 319 43.9 7.1 19.8 259 51.2 5.75 14.2 2.5" / 67mm15 330 41.5 7.35 20.9 291 46.5 6.48 17.2 236 53.3 5.25 12.3 2.5" / 67mm

80/60 � -3 378 25.5 4.62 10.2 337 31.1 4.1 8.6 276 38.9 3.37 6.4 2.5" / 67mm3 341 29.1 4.2 8.7 303 34.4 3.7 7.3 248 41.6 3.03 5.5 2.5" / 67mm10 298 33.5 3.64 7.2 265 38.1 3.2 6 217 44.6 2.65 4.5 2.5" / 67mm15 268 36.5 3.27 6.1 238 40.7 2.9 5.1 195 46.6 2.38 3.9 2.5" / 67mm

60/40 � -3 251 15.9 3.1 5.7 224 19.7 2.71 4.8 185 25 2.24 3.6 2.5" / 67mm3 215 19.5 2.6 4.5 191 22.8 2.32 3.8 158 27.5 1.91 3 2.5" / 67mm10 172 23.6 2.1 3.3 154 26.3 1.86 3 127 30.2 1.54 3 2.5" / 67mm15 142 26.4 1.72 3 127 28.7 1.54 3 105 32 1.27 3 2.5" / 67mm

The thermal outputs in these tables represent the results that may be achieved with the range of standardised coils offered in this range of equipment.

Heating coils may of course be individually selected to meet project specific requirements.



(2 row as standard)

(3 row as standard)

(2 row as standard)

029 2085 8200128

FROST COIL PERFORMANCE




Code descriptions

1. = Frost coil 2. = Suitable for Thermal wheel (TWB) &

(RAC) Run around coil units 3. = Unit size4. = Flow temperature5. = Return temperature6. = Maximum volume

flow rate (m3/s)

FC TR 1 - 82/71 - 4| | | | | |1 2 3 4 5 6

Size 3 Maximum Air Volume Flow rate (m3/s) 10.1 7.5 5

Entering Heat Air Off Water Flow Water Heat Air Off Water Flow Water Heat Air Off Water Flow WaterLPHWater Flow & Air Temp Output temp rate dp Output temp rate dp Output temp rate dpReturn Temp. (C) (C) (kW) (C) (l/s) (kPa) (kW) (C) (l/s) (kPa) (kW) (C) (l/s) (kPa) Connection size

82/71 � -3 443 30.3 9.86 33.8 392 36.7 8.7 27.7 319 45.4 7.09 19.8 *0"/00mm **00"/00mm

80/60 � -3 378 25.5 4.62 10.2 337 31.1 4.1 8.6 276 38.9 3.37 6.4 *00"/00mm **00"/00mm

60/40 � -3 251 15.9 3.1 5.7 224 19.7 2.71 4.8 185 25 2.74 3.6 *00"/00mm **00"/00mm

The thermal outputs in these tables represent the performance of coils selected to achieve our recommended operational specifications for a frost protection coil.

Alternative coil specifications may be provided on request.





82/71 � -3 287 30 6.4 11.1 249 39.1 5.5 8.9 180 51.9 4 5.4 *0"/00mm **00"/00mm

***00"/00mm

80/60 � -3 239 27.6 2.92 3.4 213 32.9 2.6 3 173 40.8 2.1 3 *00"/00mm ** 00"/00mm

60/40 � -3 162 15.7 1.97 3 140 20.6 1.7 3 114 25.9 1.38 3 *00"/00mm ** 00"/00mm

Size 1 Maximum Air VolumeFlow rate (m3/s) 4 3 2


82/71 � -3 119 21.6 2.7 6.9 108 26.7 2.4 5.9 90.3 34.3 2 4.4 00"/00mm

80/60 � -3 98.5* 17.3 1.3 3 89.3** 21.7 1.1 3 74** 28.5 0.91 3 *00"/35mm **0"/00mm

60/40 � -3 63* 9.5 0.77 3 57** 12.2 0.69 3 48** 16.4 0.58 3 *00"/35mm **0"/00mm

129







82/71 � -5 134* 5 2.98 7.8 99* 5 2.21 11.7 66** 5 1.48 6.6 *2"/54mm **1.5"/42mm

80/60 � -5 133* 5 1.63 9.9 99* 5 1.21 12.9 66** 5 0.81 14.9 *1.5"/42mm **1.25"/35mm

60/40 � -5 134* 5 1.62 12.4 99* 5 1.2 13.7 66** 5 0.8 8.3 *1.5"/42mm **1.25"/35mm

The thermal outputs in these tables represent the performance of coils selected to achieve our recommended operational specifications for a frost protection coil.

Alternative coil specifications may be provided on request.





82/71 � -5 87.5* 5 1.95 12.3 60** 5 1.33 8 40** 5 0.89 4.4 *2"/54mm **1.5"/42mm

***1.25"/35mm

80/60 � -5 87.5* 5 1.07 7.4 60* 5 0.73 13.6 40** 5 0.49 14.5 *1.25"/35mm ** 1"/28mm

60/40 � -5 87.5* 5 1.06 9.2 60* 5 0.73 14.2 40** 5 0.48 8.2 *1.25"/35mm ** 1"/28mm

Size 4 Maximum Air VolumeFlow rate (m3/s) 4 3 2


82/71 � -5 53 5 1.18 9.2 40 5 0.89 12.3 26.5 5 0.59 11.8 1.25"/35mm

80/60 � -5 53* 5 0.65 14.2 40** 5 0.49 9.5 26.5** 5 0.33 12.2 *1.25"/35mm **1"/28mm

60/40 � -5 53* 5 0.64 10.4 40** 5 0.48 13.6 26.5** 5 0.32 12.8 *1.25"/35mm **1"/28mm

FROST COIL PERFORMANCE

029 2085 8200130




CWater Flow and Return Temp. (C)

6 / 12

Cooling OutputkW

total / sensible

4.9 / 3.5**

Air Off Condition

db (deg C) / Rh (%)

17 / 72

Water flowratel/s

0.193

Water dpkPa

10.6

0.722 18 Pa 0.36 26 Pa

Size T1

Max Air Volume Flow Rate (m3/s)

Connection size 3/4” / 22mm Connection size 3/4” / 22mm

COOLING COIL AND CHILLED WATER PERFORMANCE

Cooling OutputkW

total / sensible

9.5 / 7*

Air Off Condition

db (deg C) / Rh (%)

17 / 72.5

Water flowratel/s

0.38

Water dpkPa

16.3

Entering AirConditions db (deg C) /Rh (%)

25 / 50


6 / 12

Cooling OutputkW

total / sensible

10.1 / 7.3

Air Off Condition

db (deg C) / Rh (%)

17.02 / 72.2

Water flowratel/s

0.399

Water dpkPa

12.1

1.1 0.75

Size T2



Cooling OutputkW

total / sensible

13.6 / 9.8

Air Off Condition

db (deg C) / Rh (%)

17.61 / 70.3

Water flowratel/s

0.541

Water dpkPa

20.3


25 / 50


6 / 12

Cooling OutputkW

total / sensible

12.1 / 8.7

Air Off Condition

db (deg C) / Rh (%)

17 / 72

Water flowratel/s

0.48

Water dpkPa

19

1.8 0.9

Size T3



Cooling OutputkW

total / sensible

23 / 17

Air Off Condition

db (deg C) / Rh (%)

17 / 73

Water flowratel/s

0.93

Water dpkPa

12


25 / 50

Cooling OutputkW

total / sensible

3.5

Air Off Condition

db (deg C) / Rh (%)

17 / 82

Mass flowratekg / h

82

Coil dp

bar / k

0.04 / 0

0.72 0.36

Size T1


Connection size (mm) twin coil interlaced 2 x 12.7 2 x 15.9 Gas 5 m/s 2 x 12.7 2 x 15.9 Gas 2.5 m/s

DX COIL PERFORMANCE

Cooling OutputkW

total / sensible

7

Air Off Condition

db (deg C) / Rh (%)

17 / 82

Mass flowratekg / h

163

Coil dp

bar / k

0.19 / 0.9


25 / 50

R407CLiq. Temp. before TEV oC 45.0Average Evap. Temp. oC 10.0Superheat oK 5.0

Cooling OutputkW

total / sensible

10.2 / 8.1

Air Off Condition

db (deg C) / Rh (%)

16 / 80

Mass flowratekg / h

240

Coil dp

bar / k

0.55 / 2.6

1.1 0.75

Size T2


Connection size (mm) twin coil interlaced 1 x 12.7mm Liquid line and 1 x 28 Gas line

Cooling OutputkW

total / sensible

12.4 / 10.9

Air Off Condition

db (deg C) / Rh (%)

16.8 / 80

Mass flowratekg / h

293

Coil dp

bar / k

0.82 / 3.9


25 / 50


Cooling OutputkW

total / sensible

8.7

Air Off Condition

db (deg C) / Rh (%)

17 / 82

Mass flowratekg / h

204

Coil dp

bar / k

0.06 / 0

7.4 5.4

Size T3


Connection size (mm) twin coil interlaced 2 x 12.7 2 x 22 Gas 6 m/s 2 x 12.7 2 x 15.9 Gas 6.2 m/s

Cooling OutputkW

total / sensible

17.4

Air Off Condition

db (deg C) / Rh (%)

17 / 82

Mass flowratekg / h

408

Coil dp

bar / k

0.12 / 0.5


25 / 50



131





Cooling OutputkW

total / sensible

3.8 / 2.8

Air Off Condition

db (deg C) / Rh (%)

15.85 / 76.8

Water flowratel/s

0.151

Water dpkPa

3

0.5 0.25

Size T2 continued


Cooling OutputkW

total / sensible

7.1 / 5.1

Air Off Condition

db (deg C) / Rh (%)

16.52 / 73.9

Water flowratel/s

0.283

Water dpkPa

6.8

Cooling OutputkW

total / sensible

4.1 / 3.9

Air Off Condition

db (deg C) / Rh (%)

17 / 80

Mass flowratekg / h

97

Coil dp

bar / k

0.07 / 0

0.5 0.4

Size T2 continued

1 x 12.7mm Liquid line and 1 x 28 Gas line

Cooling OutputkW

total / sensible

7.7 / 5.8

Air Off Condition

db (deg C) / Rh (%)

15.4 / 80

Mass flowratekg / h

182

Coil dp

bar / k

0.31 / 1.5

Code description for Chilled Water or Cooling Coils

1. = Chilled water or(CC) = Cooling coil

2. = Suitable for Thermal wheel (TWB) & (RAC) Run around coil units

3. = Unit size4. = Flow and return temperature5. = Return temperature6. = Maximum air flow rate (m3/s)

CW TR 1 - 6/12 - 2.6 | | | | |1 2 3 4 5

Code description for DX Coil

1. = Type of coil2. = Suitable for Thermal wheel (TWB) 3. = Unit size4. = Maximum air flow rate (m3/s)

DX TR 1 - 2.6 | | | |1 2 3 4

029 2085 8200132





6 / 12

Cooling OutputkW

total / sensible

44 / 28**

Air Off Condition

db (deg C) / Rh (%)

16 / 80.4

Water flowratel/s

1.75

Water dpkPa

23.8

2.6 1.9

Size T4


Connection size *2” / 54mm Connection size **1.5” / 42mm

COOLING COIL AND CHILLED WATER PERFORMANCE

Cooling OutputkW

total / sensible

58 / 38*

Air Off Condition

db (deg C) / Rh (%)

16 / 82.5

Water flowratel/s

2.32

Water dpkPa

14


28 / 50


6 / 12

Cooling OutputkW

total / sensible

78 / 49**

Air Off Condition

db (deg C) / Rh (%)

16 / 81

Water flowratel/s

3.1

Water dpkPa

18.5

4.7 3.4

Size T5


Connection size *2.5” / 67mm Connection size **2” / 54mm

Cooling OutputkW

total / sensible

108 / 68*

Air Off Condition

db (deg C) / Rh (%)

16 / 81.3

Water flowratel/s

4.27

Water dpkPa

26.7


28 / 50


6 / 12

Cooling OutputkW

total / sensible

125 / 78.5**

Air Off Condition

db (deg C) / Rh (%)

16 / 80.4

Water flowratel/s

5

Water dpkPa

27

7.4 5.4

Size T6


Connection size *3” / 76mm Connection size **2.5” / 67mm

Cooling OutputkW

total / sensible

167 / 108*

Air Off Condition

db (deg C) / Rh (%)

16 / 82

Water flowratel/s

6.64

Water dpkPa

22.4


28 / 50

Cooling OutputkW

total / sensible

36.6 / 28

Air Off Condition

db (deg C) / Rh (%)

16 / 91

Mass flowratekg / h

858

Coil dp

bar / k

0.25/1.1

2.6 1.9

Size T4


Connection size (mm) twin coil interlaced 2 x 15.9 2 x 35 Gas 6.7 m/s 2 x 12.7 2 x 28 Gas 7.5 m/s

DX COIL PERFORMANCE

Cooling OutputkW

total / sensible

48.4 / 37.8

Air Off Condition

db (deg C) / Rh (%)

16 / 93

Mass flowratekg / h

1134

Coil dp

bar / k

0.16 / 0.7


28 / 50


Cooling OutputkW

total / sensible

66.1 / 49.4

Air Off Condition

db (deg C) / Rh (%)

16 / 91

Mass flowratekg / h

1548

Coil dp

bar / k

0.28/1.2

4.7 3.4

Size T5


Connection size (mm) twin coil interlaced 2 x 22 2 x 42 Gas 8.0 m/s 2 x 15.9 2 x 35 Gas 9.1 m/s

Cooling OutputkW

total / sensible

86.3 / 68.3

Air Off Condition

db (deg C) / Rh (%)

16 / 94

Mass flowratekg / h

2020

Coil dp

bar / k

0.12 / 0.5


28 / 50


Cooling OutputkW

total / sensible

104.7 / 78.5

Air Off Condition

db (deg C) / Rh (%)

16 / 91

Mass flowratekg / h

2449

Coil dp

bar / k

0.16/0.7

7.4 5.4

Size T6


Connection size (mm) twin coil interlaced 2 x 22 2 x 54 Gas 7.9 m/s 2 x 22 2 x 42 Gas 9.7 m/s

Cooling OutputkW

total / sensible

139.6 / 108

Air Off Condition

db (deg C) / Rh (%)

16 / 93

Mass flowratekg / h

3267

Coil dp

bar / k

0.3 / 1.4


28 / 50



133





Cooling OutputkW

total / sensible

23 / 14.5***

Air Off Condition

db (deg C) / Rh (%)

16 / 80.3

Water flowratel/s

0.92

Water dpkPa

14

1.6 1

Size T4 continued

Connection size **1.5” / 42mm Connection size ***1.25” / 35mm

Cooling OutputkW

total / sensible

37 / 23**

Air Off Condition

db (deg C) / Rh (%)

16 / 80.2

Water flowratel/s

1.48

Water dpkPa

27.2

Cooling OutputkW

total / sensible

33 / 20.4***

Air Off Condition

db (deg C) / Rh (%)

16 / 79.3

Water flowratel/s

1.31

Water dpkPa

19

2.8 1.4

Size T5 continued

Connection size **2” / 54mm Connection size ***1.5” / 42mm

Cooling OutputkW

total / sensible

64.5 / 41**

Air Off Condition

db (deg C) / Rh (%)

16 / 80.7

Water flowratel/s

2.56

Water dpkPa

21

Cooling OutputkW

total / sensible

70 / 44***

Air Off Condition

db (deg C) / Rh (%)

16 / 80.2

Water flowratel/s

2.77

Water dpkPa

19

4.7 3

Size T5 continued

Connection size **2.5” / 67mm Connection size ***2” / 54mm

Cooling OutputkW

total / sensible

109 / 68**

Air Off Condition

db (deg C) / Rh (%)

16 / 80.1

Water flowratel/s

4.34

Water dpkPa

22

Cooling OutputkW

total / sensible

20 / 14.5

Air Off Condition

db (deg C) / Rh (%)

16 / 90

Mass flowratekg / h

467

Coil dp

bar / k

0.19 / 0.9

1.6 1

Size T4 continued

2 x 12.7 2 x 28 Gas 6.4 m/s 2 x 12.7 2 x 22 Gas 6.9 m/s

Cooling OutputkW

total / sensible

31.1 / 23.3

Air Off Condition

db (deg C) / Rh (%)

16 / 91

Mass flowratekg / h

734

Coil dp

bar / k

0.18 / 0.8

Cooling OutputkW

total / sensible

28.6 / 20.4

Air Off Condition

db (deg C) / Rh (%)

16 / 88

Mass flowratekg / h

670

Coil dp

bar / k

0.27 / 1.2

2.8 1.4

Size T5 continued

2 x 15.9 2 x 35 Gas 7.5 m/s 2 x 12.7 2 x 28 Gas 5.9 m/s

Cooling OutputkW

total / sensible

54.2 / 41

Air Off Condition

db (deg C) / Rh (%)

16 / 91

Mass flowratekg / h

1268

Coil dp

bar / k

0.29 / 1.3

Cooling OutputkW

total / sensible

60.2 / 44

Air Off Condition

db (deg C) / Rh (%)

16 / 89

Mass flowratekg / h

1408

Coil dp

bar / k

0.19 / 0.9

4.7 3

Size T6 continued

2 x 22 2 x 42 Gas 8.4 m/s 2 x 22 2 x 35 Gas 8.3 m/s

Cooling OutputkW

total / sensible

98 / 68.3

Air Off Condition

db (deg C) / Rh (%)

16 / 91

Mass flowratekg / h

2130

Coil dp

bar / k

0.2 / 0.9

Code description forChilled Water or Cooling Coils

1. = Chilled water or(CC) = Cooling coil

2. = Suitable for Thermal wheel (TWB) & (RAC) Run around coil units

3. = Unit size4. = Flow and return temperature5. = Return temperature6. = Maximum air flow rate (m3/s)

CW TR 4 - 6/12 - 2.6 | | | | |1 2 3 4 5

Code description forDX Coil

1. = Type of coil2. = Suitable for Thermal wheel (TWB)

& (RAC) Run around coil units 3. = Unit size4. = Maximum air flow rate (m3/s)

DX TR 4 - 2.6 | | | |1 2 3 4

029 2085 8200134


XBOXER WIRING


WIRING FOR UNITS WITH ECOSMART CONTROL - T1 - TWB ‘L’ (LPHW)


N

L

SL

DP

CL

N

RET



Min Max SL run on

Trickle Test

0 1


Ecosmart

Heat demand signal

L1

L2

L3

N

E

Earth

Bypass Controller

Run signal

Fault signal

400V 50Hz 3ph mains

0V

0-10VBMS signal


FAU

LT

RU

N

N

L

SL

DP

CL

N

RET



Min Max SL run on

Trickle Test

0 1


Ecosmart

Heat demand signal

Earth

Run signal

Fault signal

HEA

T

D

AM

PER

DEM

AN

D

ON

OFF

AU

TOH

EATE

R/C

OO

L


Frostalarm signal



25

30

25

Set air off temperature of LPHW coil 0V

0-10VBMS signal

FAU

LT

RU

NH

EAT

DA

MPE

RD

EMA

ND

WIRING FOR UNITS WITH ECOSMART CONTROL - T2 - TWB ‘L’ (LPHW)


N

L

SL

DP

CL

N

RET



Min Max SL run on

Trickle Test

0 1


Ecosmart

Heat demand signal

L

N

E Earth

Bypass Controller

Run signal

Fault signal

230V 50Hz 1ph mains

0V

0-10VBMS signal


FAU

LT

RU

N

N

L

SL

DP

CL

N

RET



Min Max SL run on

Trickle Test

0 1


Ecosmart

Heat demand signal

Earth

Run signal

Fault signal

HEA

T

D

AM

PER

DEM

AN

D

ON

OFF

AU

TOH

EATE

R/C

OO

L


Frostalarm signal



25

30

25

Set air off temperature of LPHW coil 0V

0-10VBMS signal

FAU

LT

RU

NH

EAT

DA

MPE

RD

EMA

ND

135


XBOXER WIRING



Nuaire Ecosmart Heating Controller

(not included with this range) may be suitable for

control of third party valve actuators.


WIRING FOR UNITS WITH ECOSMART CONTROL - T4, 5 & 6 TWB R4, 5 & 6 RAC ‘N’ (NO HEATER) EXTRACT

WIRING FOR UNITS WITH ECOSMART CONTROL - T4, 5 & 6 TWB R4, 5 & 6 RAC ‘N’ (NO HEATER) SUPPLY

029 2085 8200136


XBOXER WIRING


WIRING FOR UNITS WITH ECOSMART CONTROL - T4, 5 & 6 TWB R4, 5 AND 6 RAC ‘L’ (LPHW) EXTRACT

WIRING FOR UNITS WITH ECOSMART CONTROL - T4, 5 & 6 TWB R4, 5 AND 6 RAC ‘L’ (LPHW) SUPPLY

Nuaire Ecosmart Heating Controller (not included with this range) may be suitablefor control of third party valve actuators. Contact Nuaire for details.

137


XBOXER WIRING


nuaire.co.uk

WIRING FOR UNITS WITHOUT ECOSMART CONTROL

T4NC, T5NC & T6NC TWB - 3 PHASE AND R4NC, 5NC & 6NC RAC - 3 PHASE

THREE PHASE

* Note: by special order. Refers only to Inverters supplied by Nuaire.Each standard unit uses two motors for both supply and extract operation. (4 in total)

L1 L2 L3

U1

V1

W1

W2

U2

V2

3 phase for connection to a STAR /DELTA STARTER (4kW and above)

400V 3 phase 50Hz supply

STAR

L1 - U1L2 - V1L3 - W1Link W2, U2, V2

DELTA

L1 - U1 - W2L2 - V1 - U2 L3 - W1 - V2

L1 L/L2 N/L3 PE/ W V U


3 Phase onlyINVERTER SPEED CONTROL

Connectionsto motor

3 Phase input

Motor3 phase

Notes:Total length of motor leads should not exceed 50 metres.If a screened motor cable is used, maximum length should be 25 metres. Consult our Technical Department if you wish to use longer leads.Inverters are configured to suit specific fans and controlapplications as described on the Customer Orderfree of charge.

* Matched Frequency Inverter

Note: For all D.O.L. (Direct On Line)operation or Inverter type Speed Controlwire in DELTA

3 phase for DOL STARTING(4kW and above)


U1

V1

W1

W2

U2

V2

L1

L2

L3


029 2085 8200138


XBOXER



XBOXER THERMAL WHEEL & RUN AROUND COIL


shall be in accordance with the particular fan schedule

in the specification. Supply air to the room shall be pre-heated by the extract air

via the integrated thermal wheel or run around coil.

Where fitted an integrated heater battery shall raise the temperature of the

supply air to the design room temperature after the air has passed through the

thermal wheel or run around coil.

The Ecosmart ventilation unit shall automatically vary the ventilation rate, as it

receives signals from one of the optional interconnected sensors.

When signals are received, the fan shall either vary its speed proportionally or

on a trickle and boost principle.




RANGE TYPE -THERMAL WHEEL UNITThe vertically stacked unit shall be manufactured from aluzinc corrosion

resistant steel, with 25mm double skinned infill panels and extruded aluminium

frame giving extremely low noise levels. The unit shall include the following

items:- Thermal wheel, supply & extract fans, supply and extract filters, G4

grade bag as standard (upgrade to F7 bag if required) and LPHW heating coil

(L model). The unit shall be constructed with removable panels allowing

maintenance access from either side. Note: T1, T2 & T3 have chosen side access.

RUN AROUND COIL UNITThe vertically stacked unit shall be manufactured from aluzinc corrosion

resistant steel, with 25mm double skinned infill panels and extruded aluminium

frame giving extremely low noise levels. The unit shall include the following

items:- Run around coil pair, supply & extract fans, condensate drip tray and

22mm drain connection (alternatively a condensate pump shall be provided if

specified), supply and extract filters, G4 grade bag as standard (upgrade to F7

bag if required) and LPHW heating coil (L models).


access from either side.

CONTROL TYPES -ECOSMART - (OPTIONAL) The Ecosmart control option provides the facility for energy saving via an

intelligent stand-alone AHU function, or for convenient integration with client

BMS with a minimal coordination requirement.

The factory fitted control includes:- integral infinitely variable (inverter) speed /

duty control for the supply and extract fans, with independent minimum and

maximum adjustment for accurate commissioning.

A run on timer and “background” ventilation function and is provided as is unit

status indication, run / fail relays, and interface connection for Ecosmart

sensors/enablers and system dampers.

The unit heat recovery function is facilitated by a dedicated controller and

associated sensors. An output signal is provided to control thermal wheel drive or

plate heat exchanger bypass operation (included), For Run Around Coil units, the

output signal may be used to control the circulation pump system (by others).

BMS. The Ecosmart control module can additionally be pre-configured to provide

the following integrated BMS interfaces.


following functions:-

Switch the unit ON/OFF.

Variable speed / duty control Switch from low speed to high

speed - trickle and boost principle.


system status.

Please note Ecosmart is fan only control.

NO CONTROL - (OPTIONAL) Unit provides side access to direct supply and extract fan motor wiring (terminal

boxes) for interface to custom built control panels by others. For this option, no

sensors are fitted to the unit, but note that in the case of plate heat exchanger

units, the bypass damper actuator is included, and for thermal wheel units, the

wheel motor and drive unit is included.

ELECTRIC HEATER BATTERY The electric heater battery shall be factory fitted and pre-wired to an integral

closed loop thyristor control. When the unit is switched off, the fan shall

continue to run to dissipate heat from the electric heater battery before

stopping.

COIL TYPES - LOW PRESSURE HOT WATER COIL & RUN AROUND COILS (OPTIONAL)The coil casing shall be formed from heavy gauge galvanised sheet steel to

BS 2989 to make a rigid assembly. Tube end plates shall have die formed collared

holes to allow expansion and contraction of the tubes without damage.

All coils are pressure tested to 16 bar with dry compressed air under water.

Standard or duty specific coils are selected to suit customer requirement using

specific computer software to give optimum performance with lowest pressure

drop.

The coils shall be factory fitted with drain cocks and air vents.

Standard specification coils have copper tubes and aluminium fins.

Coil connections shall be BSP terminated at the exterior of the unit casing.

T1, T2 & T3 will have push fit connections.

139


XBOXER


nuaire.co.uk




COOLING COILS - CHILLED WATER (OPTIONAL)The coil casing shall be formed from heavy gauge galvanised sheet steel to





specific computer software to give optimum performance with lowest pressure

drop. The chilled water coils shall be factory fitted with drain cocks and air vents.

Standard specification coils shall have copper tubes and aluminium fins, and shall

be supplied complete with an insulated condensate tray with drain connection,

and moisture eliminator. Coil connections shall be BSP terminated at the exterior

of the unit casing. T1, T2 & T3 will have push fit connections.

COOLING COILS – DX COIL (OPTIONAL)The coil casing shall be formed from heavy gauge galvanised sheet steel to





specific computer software to give optimum performance with the chosen

refrigerant.

The DX coils shall be of twin coil interlaced type unless otherwise stated (c/w

two pairs of connections). Standard specification coils shall have copper tubes

and aluminium fins, and shall be supplied complete with an insulated

condensate tray with drain connection, and moisture eliminator.

Coil connections shall be BSP terminated at the exterior of the unit casing.

ANCILLARIES FOR RAC & TWB - ATTENUATORSAttenuator splitters is shall be manufactured from using chemically inert, non-

combustible, non-hydroscopic and vermin resistant sound absorbing material,

with fibre-retaining facing Attenuator casing shall be manufactured from aluzinc

corrosion resistant steel, with 25mm double skinned infill panels and extruded

aluminium frame.

Attenuator shall be tested in accordance with BSI 4718: 1971 ASTME 477 and

shall be suitable for external/internal use.

CODE FOR ATTENUATORSSIL-TR-1 (to fit thermal wheel unit).

SIL-TR-2 (to fit thermal wheel unit).

SIL-TR-3 (to fit thermal wheel unit).

SIL-TR-4 (to fit both thermal wheel and run around coil unit).



MOTORISED DAMPERSMotorised damper shall be of opposed blade type and come complete with

quick fit flanges as standard. Damper is 240V open/shut type designed for

efficient back draft protection.

CODE FOR DAMPERSMD-TR1 (to fit size 1-TWB**

MD-TR2 (to fit size 2-TWB**

MD-TR3 (to fit size 3-TWB**

MD-TR4 (to fit size 4-TWB/RAC**



Note: above are suitable for both Thermal wheel and run around coil ranges.

WEATHER KIT Manufactured from Aluzinc the weather proof enclosure is designed for Nuaire

thermal wheel and run around coil ranges. Kit’s can be factory fitted or installed

on site. Note: enclosure does not provide frost protection.


CODE (FOR THERMAL WHEEL MODELS)T1-TWB-L L 2 WP

T2-TWB-R L 2 WP

T3-TWB-L N WP

T1-TWB-R N WP

T2-TWB-L E WP

T3-TWB-R E WP

T4-TWB-L*WP

T5-TWB-L*WP

T6-TWB-L*WP

T4-TWB-NWP

T5-TWB-NWP

T6-TWB-NWP

CODE (FOR RUN AROUND COIL MODELS)R4-RAC-L*WP

R5-RAC-L*WP

R6-RAC-L*WP

R4-RAC-NWP

R5-RAC-NWP

R6-RAC-NWP

* Denotes handing, ‘L’ = left, ‘R’ = right.

Models with Ecosmart control will have a 5 year warranty.

Models with no control will have a 2 year warranty.

For further details contact Nuaire.

Note: Thermal wheels have specific maintenance requirements,

contact Nuaire for details.

029 2085 8200140

XBOXER CUSTOM MADE AHU SOLUTIONS

OPTIMISING AIR QUALITY AND ENERGY CONSUMPTION.

141nuaire.co.uk


XBOXER CUSTOM MADE AHU’S


The XBOXER custom-made solution is customised

and covers functions for applications with special

demands: energy efficiency, high performance and

fast commissioning are some of the qualities

applied on both ranges.

CUSTOMER DEFINEDCustomers now have the flexibility to combine

modules to build tailor-made AHUs up to 20m³/s.

SPECIAL DEMANDSFor installations that demand functionality XBOXER

can always offer a solution. For instance, the

installation might require a humidifier in order to

achieve a specific humidity level. The application

environment might also require components in a

specific finish, XBOXER can meet this requirement.

FLEXIBILITYThe possibility to combine single and double deck

units has been increased in combinations and sizes

within this range. Installations with high demands

might need one or a few functions outside the

standard range.

The pre-configured and tailored solution ranges can

be combined to offer the best solution. The unit

platform could be standardised, whereas a selection

of the functions are customised making XBOXER

the most flexible AHU range available.

PROJECT SPECIFIC CONTROLAHUs are sent to site control free allowing them to

be integrated with control systems supplied by

others.

ENERGY SOLUTIONSNuaire also offers a number of world class solutions

for energy efficiency.

BENEFITS

XBOXER CUSTOM-MADE

The XBOXER custom-made range offers highly-efficient

solutions purpose-built to meet the exacting demands of

even the most specialised application.

CUSTOMER-ADAPTED

For installations with more specialised needs, for example in

terms of hygiene or material, XBOXER enables customer

adaptation of the air handling unit as a whole or of its

constituent parts. Custom-made units offer a far wider range

of components than the “pre-configured” range leading to

significant advantages in terms of functionality and flexibility.

SPECIALISED DEMANDS

For installations where functionality is the prime concern,

the solution will most frequently be found here, for

example if the installation requires a humidifier to achieve

a specific humidity level. Alternatively, the environment the

application is designed for might require components in a

specific material, such as casing in stainless steel.

The range provides the capability to combine single and

double deck units in many different combinations and sizes.

Installations with specialised demands might also require

one or several functions that lie outside the standard range.

In an instance such as this, the ranges can be combined to

provide the optimum solution. For example, the unit

platform can be a standard component with some of the

functions customized.

CUSTOMER-ADAPTED CONTROL

Customer-adapted control solutions are available for every

conceivable application.

ENERGY SOLUTIONS

Nuaire also offers a range of world class energy efficiency

solutions, such as constant pressure, which can be

incorporated into its AHU ventilation systems.

029 2085 8200142




CUSTOM-MADE SOLUTIONS

THE XBOXER RANGE

The pre-configured range, covering the most common applications, is standardised enabling shorter delivery times. In

addition to a pre-configured range, XBOXER also offers the complete flexibility of custom-made solutions.

For even greater flexibility, it’s possible to add customised features to pre-configured units, making XBOXER the most flexible

AHU range on the market today. Energy efficiency, high performance, easy to commission and low noise levels are some of

the features common to both ranges.

PUTTING CUSTOM SOLUTIONS INTO CIRCULATION: THE MOST FLEXIBLE AHU RANGE ON THE MARKET TODAY

The XBOXER range offers a solution for every conceivable application

and environment, whether inside a plant room or on a roof. There are

XBOXER solutions for applications in industrial premises and public

buildings as well as domestic dwellings, schools, offices, leisure

complexes and shops.





VENTILATION FOR SCHOOLS

As the market leader in the design and manufacture of commercial and domestic energy efficient ventilation systems,

Nuaire now offers a wide selection of products that have been specifically designed for schools and are suitable for a variety

of applications throughout.

NUAIRE – PROVIDING CLEAN AIR SOLUTIONS FOR UK SCHOOLS

Building on its reputation of delivering a varied range of quality,

innovative ventilation systems, Nuaire products have been specified

for a wide variety of schools projects across the UK.

Whether an existing educational establishment is being

refurbished or a brand new school is being built, the

importance of creating a fresh, healthy and comfortable

learning environment for the teachers and pupils cannot

be underestimated. The quality of the air inside the

school plays a key role in creating such an environment

and so specifying the correct ventilation systems for

school buildings is critical.

The demanding specification requirements expected for

the new wave of classrooms has resulted in Nuaire

adapting one of its existing specialist schools systems into

a brand new product, the XBOXER 55. This unit had to

provide increased levels of ventilation with a reduction in

depth, whilst maintaining low noise levels. Nuaire worked

closely with consultants and clients on a number of school

projects in order to produce a unit that met their

requirements, and conducted exhaustive tests both on an

actual school site and at Nuaire’s renowned test laboratory.

As AHU Sales Manager, Stuart Freeman, explains “Issues

concerning indoor air quality within schools are becoming

increasingly important,” he said. “As well as constructing

school buildings that are environmentally sustainable,

energy efficient and aesthetically pleasing, local education

authorities are also looking to create fresh, healthy and

comfortable learning environments for their pupils, and

our systems have been designed to do just that.”

“Compared to most other types of building, schools are

extreme environments as they have high and sporadic

occupancy levels. For example, due to the irregular

occupancy of areas such as classrooms, we have

incorporated Ecosmart controls into the XBOXER unit

which automatically adjust the systems to allow varying

fan speeds, matching the output of the systems to the

demand, to minimise energy usage. Also, controls can be

linked to business management systems, providing on-

demand ventilation, minimising carbon emissions and

also prolonging the life of the equipment.”

Nuaire, which manufactures all its products out of its

South Wales base and was the first UK ventilation

company to achieve the Carbon Trust Standard, boasts

its own in-house Applications Engineering team which

works in close partnership with its clients to ensure the

best possible solution for their project.

The company has even built a 30-seat mock classroom

at its UK headquarters.

Designed to display and test its range of innovative

school ventilation systems, the classroom is the only one

of its kind among UK ventilation manufacturers and is to

be used as a testing and demonstration facility for

customers who wish to test Nuaire’s products.

For more information on Nuaire’s range of school

ventilation products, visit www.nuaire.co.uk/schools

or to arrange a visit to the facility contact

[email protected]

029 2085 8200144




TYPICAL AIR HANDLING UNIT

KEY FEATURES AND BENEFITS

GREAT HARDWARE, GREAT SOFTWARE

It’s not just Nuaire’s hardware that sets it apart from its competitors.

The software we use is tailor-made to facilitate the specification,

design and build of the units through creating detailed drawings and

technical specifications within a very short time frame.

AIR HANDLING SYSTEM

Variable and optimised adjustment

for all system-specific applications:

Very latest production technology

delivering highest product quality

Unit design optimised for lowest

possible energy consumption

Design and calculations supported

by the most advanced selection

program and software available

Efficiency and economy:

By optimising air flow through

AHU components thereby

reducing energy consumption and

minimises internal pressure loss

XBOXER uses all conventional

heat recovery systems: Thermal

wheel, run around coil and high

efficiency plate heat exchanger

Optional EC motors - (EC)

Electronically commutated motors

are brushless DC motors. They can

be speed controlled with a 0-10V

input, removing the need for

additional speed control devices.

This combined with lower running

temperatures and brushless

commutation results in longer

motor life of up 70,000 hours

(L/10) and higher efficiencies

Optional IE2 motors.

IE2 motors are ideal for

applications where the ventilation

equipment is expected to run

continuously or for long periods of

time. The higher efficiencies result

in greater savings over the life of

the motor and an overall

reduction in C02 emissions during

operation

DESIGN EXPERIENCE THAT IMPROVES THE CUSTOMER EXPERIENCE

At Nuaire, our wealth of design experience is harnessed to deliver unique

design features that will significantly enhance the customer experience:

Maximum corrosion protection by galvanised and optional powder-coated

casing panels

50mm construction providing high standards of heat and noise insulation

Building material class A1 mineral wool heat and noise insulation

Thermal transmittance minimised by optimised casing covers

Unit construction can be dismantled into component sections

Class B leakage classification

The quality of the units is due to a combination of in-house technical expertise, high quality production facilities and

an experienced workforce dedicated to delivering a quality product. With the emphasis on quality and efficiency, a wide

range of both single and modular section construction units are available. These units can be supplied with any

combination of standard components including filtration, heating, cooling and heat recovery.





NEW UNIT, NEW STANDARDS

The casing and energy-efficient components make the range uniquely cost-effective, while the fact that units can be

manufactured up to 50mm panel construction makes them extremely flexible.

QUALITY FEATURES: ALL THE INS AND OUTS

At Nuaire, quality is the key component of all our products,

whatever the application:

Suitable for all installations, internally and externally

A choice of materials

A choice of heat recovery options (including

plate HX, thermal wheel and run-around coil)

Nuaire’s flexible air handling unit range.

OPTIONAL

NON-PENETRATING

MOUNTING SYSTEM

TYPICAL AIR HANDLING UNIT

KEY FEATURES AND BENEFITS

029 2085 8200146




UNIT CHARACTERISTICS

FILTER

CHARACTERISTICSCOIL CHARACTERISTICS

0 5 10 15 20 25

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

AIRFLOW m3/s

UN

IT S

IZE

PRODUCT SPECIFICATION

AIRFLOW (m3/s) AIRFLOW (m3/s) AIRFLOW (m3/s) AIRFLOW (m3/s)MODEL NUMBER 25mm 50mm BASED ON 2.5m/s BASED ON 3m/s BASED ON 3.5m/s BASED ON 3m/s

CONSTRUCTION CONSTRUCTION THROUGH COIL THROUGH COIL THROUGH COIL THROUGH FILTERS

CONSTRUCTION WIDTH HEIGHT WIDTH HEIGHT 25mm 50mm 25mm 50mm 25mm 50mm 25mm 50mm

NA-01-*-080/080 755 775 805 825 0.66 0.69 0.80 0.83 0.93 0.96 0.80 0.83

NA-02-*-090/080 1060 775 1110 825 1.06 1.10 1.28 1.32 1.49 1.54 1.28 1.32

NA-03-*-090/090 755 1080 805 1130 1.05 1.08 1.26 1.30 1.47 1.51 1.26 1.30

NA-04-*-100/080 1360 775 1410 825 1.46 1.50 1.75 1.80 2.04 2.10 1.75 1.80

NA-05-*-100/090 1665 775 1715 825 1.86 1.91 2.23 2.29 2.60 2.67 2.23 2.29

NA-06-*-120/080 1360 1080 1410 1130 2.30 2.35 2.76 2.82 3.22 3.29 2.76 2.82

NA-07-*-100/100 1360 1380 1410 1430 3.14 3.19 3.76 3.83 4.39 4.47 3.76 3.83

NA-08-*-130/080 1965 1080 2015 1130 3.56 3.62 4.27 4.35 4.98 5.07 4.27 4.35

NA-09-*-130/100 1965 1380 2015 1430 4.84 4.92 5.81 5.90 6.78 6.88 5.81 5.90

NA-10-*-160/080 2270 1380 2320 1430 5.71 5.79 6.85 6.94 7.99 8.10 6.85 6.94

NA-11-*-130/130 1965 1685 2015 1735 6.15 6.23 7.38 7.48 8.61 8.72 7.38 7.48

NA-12-*-160/100 1965 1985 2015 2035 7.44 7.53 8.93 9.03 10.41 10.54 8.93 9.03

NA-13-*-180/090 2270 1985 2320 2035 8.76 8.86 10.51 10.63 12.27 12.40 10.51 10.63

NA-14-*-190/100 1965 2290 2015 2340 8.75 8.84 10.50 10.61 12.25 12.38 10.50 10.61

NA-15-*-160/130 2570 1985 2620 2035 10.06 10.16 12.08 12.20 14.09 14.23 12.08 12.20

NA-16-*-160/160 2875 1985 2925 2035 11.39 11.50 13.66 13.79 15.94 16.09 13.66 13.79

NA-17-*-220/130 2570 2290 2620 2340 11.83 11.94 14.20 14.33 16.56 16.72 14.20 14.33

NA-18-*-220/160 2570 2590 2620 2640 13.57 13.69 16.29 16.43 19.00 19.16 16.29 16.43

NA-19-*-250/160 2875 2590 2925 2640 15.36 15.48 18.43 18.58 21.50 21.67 18.43 18.58

NA-20-*-250/190 2570 2895 2620 2945 15.34 15.47 18.41 18.56 21.48 21.65 18.41 18.56

NA-21-*-250/250 2875 2895 2925 2945 17.36 17.49 20.83 20.99 24.30 24.49 20.83 20.99

* = FOR 25MM CONSTRUCTION INSERT 30/25 * = FOR 50MM CONSTRUCTION INSERT 50/45 EXAMPLE NA-15-50/45-160/130





This graph is to be used as a guide only – Nuaire will be happy to size your unit for you based on your

projects individual requirements. This graph should be read in conjunction with either of the tables below.

Coils 2.5m/s face velocity

Generally when cooling is required in the AHU

Little or no condensate is expected and no

eliminators are going to be used

Results in lower SFPs

Coils 3m/s face velocity

Generally when cooling is required in the AHU

Little or no condensate is expected, or eliminators

will be fitted to the coil to catch airborne

condensate droplets

Coils 3.5m/s face velocity

No cooling is required and only LPHW coils are

being used

Low grade filtration is being used - typically G3 or less

Results in higher SFPs

Filters 3m/s face velocity

G4 or higher filters should be limited to 3m/s face

velocity to ensure good particulate capture

AIR HANDLING UNIT "FOOTPRINT" INDICATOR

Below is a table of typical components and their lengths that can be used to

build up your AHU and provide you with an indicative footprint for you

plantroom/plant space requirements.

Having established your required air volume identify the corresponding module

size on the facing page. (Please take care when identifying the air velocity

through the unit and that the correct velocity is used for the components making

up your system). This provides the cross sectional area of the unit i.e. width and

height. Please note that if a double deck unit is required then the height should

be doubled (a minimum of 100mm to be added to allow for the baseframe).

The length of the unit is finalised by arranging the relevant components into the

desired format and the lengths totalled. (See typical example below).

Please note that the system pressure should be kept to below 500Pa, however to

maintain low Specific Fan Power's we recommend that the system pressure drop

is designed to be below 300Pa. The above dimensions are indicative we

recommend that before finalising you plant space requirements you contact

Nuaire to verify the selection parameters.


200 350 600 600 350 600 900 2000 600 600 600 1200 950 1200 1500 900 200

200 350 600 600 350 600 900 2000 600 600 600 1200 950 1200 1500 900 200

200 350 600 600 350 600 900 2000 600 600 600 1200 950 1200 1500 900 200

200 350 600 600 350 600 900 2000 600 600 600 1200 950 1200 1500 900 200

200 350 600 600 350 600 900 2000 600 600 600 1200 950 1200 1500 900 200

200 350 600 600 350 600 900 2000 600 600 600 1200 950 1200 1500 900 200

200 350 600 600 350 600 900 2000 600 600 600 1200 950 1200 1500 900 200

200 350 600 600 350 600 900 2000 600 600 600 1200 950 1200 1500 900 200

200 350 600 600 350 600 900 2000 600 600 600 1200 950 1200 1500 900 200

200 350 600 600 350 600 900 2000 600 600 600 1200 950 1200 1500 900 200

200 350 600 600 350 600 900 2000 600 600 600 1200 950 1200 1500 900 200

200 350 600 600 350 600 900 2000 600 600 600 1200 950 1200 1500 900 200

200 350 600 600 350 600 900 2000 600 600 600 1200 950 1200 1500 900 200

200 350 600 600 350 600 900 2000 600 600 600 1200 950 1200 1500 900 200

200 350 600 600 350 600 900 2000 600 600 600 1200 950 1200 1500 900 200

200 350 600 600 350 600 900 2000 600 600 600 1200 950 1200 1500 900 200

200 350 600 600 350 600 900 2000 600 600 600 1200 950 1200 1500 900 200

200 350 600 600 350 600 900 2000 600 600 600 1200 950 1200 1500 900 200

200 350 600 600 350 600 900 2000 600 600 600 1200 950 1200 1500 900 200

200 350 600 600 350 600 900 2000 600 600 600 1200 950 1200 1500 900 200

200 350 600 600 350 600 900 2000 600 600 600 1200 950 1200 1500 900 200

DAMPE

R

PANEL

FILTER

SW

BAG

FILTER

SW

MIXIN

G

BOX

FROST

COIL

ACCES

S/SP

ACER

THER

MAL

WHEE

L

PLATE

HX

RUN-

ARO

UND

COIL

HEA

TING

COIL

COOLING

COIL

IN-D

IREC

TGAS HEA

TER

PLUG FAN

(DIREC

TDRIVE)

BELT DRIVE

FAN

HUMIDIFIER

SILENCER

DAMPE

R

029 2085 8200148





GENERAL SPECIFICATION

The Nuaire range of Air Handling Units are designed to meet

all the ventilation requirements for commercial and industrial

buildings meeting with current standards for construction

and operation.

BASE FRAME CONSTRUCTION

The base frame is constructed from hot dip galvanised steel

section with longitudinal and cross members, the base frame

incorporates lifting points.

MATERIALS

The frame is a pentapost rigid closed section aluminium alloy. The

panels have perimeter inner seals with the unit panels seals

seating onto the pentapost section ensuring that there is no air

leakage into the AHU. All modules, panels and sections with the

AHU are manufactured to air leakage classification 2A. The closed

section framework provides air gap insulation within the cavity.

The unit panels are nominal 25mm or 50mm double skin

insulated panels. The panel insulation is high density mineral wool

slab which provides good thermal or acoustic properties. Special

finishes can be incorporated to meet specific requirements.

EXTERNAL AIR HANDLING UNITS

Full weatherproof facilities are available for externally mounted

units. The units have a rigid weatherproof roof complete with

gutter profile allowing clear drainage with all sections fully sealed

to prevent the ingress of water through any panels.

INLET SECTIONS

All units can be provided with grilles or louvres to suit the

application. This can be in the form of a weatherproof louvre, inlet

grille or bird/insect mesh. Dampers will be opposed blade multi

leaf type manufactured in silver anodised aluminium extruded

section with low pressure drop characteristics when open.

Opposed or parallel blade dampers will have an interlocking gear

drive on each blade. Damper blades can be provided in steel with

special paint finishes or stainless steel in accordance with

particular specification requirements. Sealing edge strips are

provided for low air leakage operation. The mixing box will have a

single compartment for re circulation and fresh air mode of

operation and a twin compartment for recirculation, exhaust and

fresh air.

FILTRATION

The filter section will incorporate bag and/or panel filters suitable

for front or side withdrawal. The panel type filters will be disposable

or washable in accordance with specification requirements.

Filter panels are held in rigid galvanised steel holding frames

complete with seals to prevent leakage. Magnahelic gauges can be

provided if required. Each filter section will be provided with a full

access section to allow ease of filter replacement.

HEAT RECOVERY

All types of heat recovery options can be incorporated into the

air handling unit and generally comprise the following:

Thermal Wheel Exchangers have a rotating wheel that will

recover both sensible and latent heat with efficiencies up to 85%.

Plate Heat Exchangers Cross flow type heat recovery will provide

up to 70% efficiency. Summer bypass facilities are available.

Run Around Coils Waste heat recovery is available with liquid

coupled run around coils, the construction is to the same

specification as the heating coils, a water/glycol medium is

pumped through the coupled coil circuit to provide up to 65%

heat recovery.

The pump set to be provided by others.

COIL TYPES

Nuaire provide coils for all types of heating and cooling

applications:

The coils are constructed from a rigid galvanised framework

section with a copper header that the finned, coil tubes are brazed

to. Each has flow and return screwed or flanged connections. Coils

are fabricated from copper tube with aluminium collars with fins

spaced at pitches set to meet specific design performance

requirements, providing excellent heat transfer characteristics.

Special materials and finishes can be provided such as copper fins

and electro tinning to meet particular specification requirements.

All pipe and drain connections are fitted with flexible bushes to

ensure an airtight seal and good vibration isolation.

All coils are fitted with an air vent and drain plug as standard.

HEATING TYPES

Nuaire can provide the following heating mediums:

Hot water coils are available for low, medium and high pressure

hot water and steam applications and are manufactured as

described in coil types above.

Electric The electric heater elements are designed for black heat

operation with 80/20 nickel chrome resistance wire centred in a

protected metal tube packed with magnesium oxide. The element

tubes are copper coated mild steel tubular or finned to meet the

particular application. The units are complete with safety cut outs

with manual reset. The control system operation is from remote

thermostat or step control with pre wired switching and overheat

protection. Thyristor/SCR control can be provided.





Indirect Gas and Oil Indirect fired heat modules are suitable for

natural gas, LPG or oil. Gas-fired modules are CE marked and

comply with all relevant standards. A heavy gauge, high quality

stainless steel (316 grade) combustion chamber / heat exchanger

is available. Heater efficiencies will be in excess of 85% across the

output range, condensing heater modules are also available to

provide higher combustion efficiencies. For large output units, up

to 890kW, a forced draught burner is supplied, installed with all

controls to meet the particular specification requirements.

Heaters are provided with full safety controls including gas

pressure proving, flame detection, airflow proving and high

temperature cut-out. Burner control can be provided as on/off,

high/low/off or modulating as appropriate.

COOLING

A choice of chilled water or direct expansion heat exchangers are

available and are manufactured as described in coil types on page

00 with the exception that the DX Coils have interlaced tubes

staggered in the direction of airflow.

FANS

This section incorporates a fan and motor assembly to meet the

specific air volume and pressure requirements for the application.

A comprehensive range of fan types are available including

centrifugal forward and backward curved fans, plug type, axial or

mixed flow type fans. Special fan finishes can be incorporated to

meet the particular specification and application requirements.

The fan and motor assembly is mounted onto an independent

sub frame with anti vibration mount isolation from the main unit

frame and a flexible connection on the fan discharge preventing

noise and vibration transmission. If direct drive fans are installed

then anti vibration mounts would only be fitted as required

dependant upon the fan selection and application.

Motors will be cage rotor type with an aluminium or steel frame

construction and will comply with current British and European

standards. Motor sizes up to and including 5.5 kW shall be suitable

for D.O.L starting, above 7.5 kW motors shall be suitable for Star-

Delta starting. Various methods of speed control are available as

an option. Motors shall have Class ̀ F` insulation to BS 2757 and

shall be provided as standard with an IP54, TEFV enclosure.

Thermistor protection can be provided and shall be set to operate

at not more than 120ºC and shall comply with BS 4999: part 72.

The fan motor drive will be a pulley belt drive with taper lock

pulleys used on motor ratings up to and including 30kW. Drives

above 30kW shall have key secured pulleys. A minimum of two

belts shall be used on each drive and shall be endless V belts

manufactured in accordance with BS 3790 utilising `A, `B` or

`C` sections.

PLUG CENTRIFUGAL FAN

Direct drive axial-centrifugal fans providing maximum performance

with optimum efficiency. The fans are single-entry air intake with

backward-curved blades. The impeller directly coupled to the motor

shaft providing a space saving solution for simplifying installation

and maintenance. Complete fan and motor assembly is supported

by compressed anti-vibration mounting system.

Wiring All AHUs be supplied non-wired. This maintains the

integrity of the air handling unit as cable entries and connections

can be properly protected and sealed. A full range of control

accessories including damper actuators, pressure switches, valves,

transmitters and signal conditioners can be fitted.

ACCESSORIES

Attenuation Sound absorbent elements are arranged within the

unit casing providing a series of vertical splitters to suit the

acoustic requirements. The splitter frames contain a faced fibrous

infill that is non shredding, non combustible with a class 1 rating,

non-hygroscopic and chemically inert. Perforated and melanex

facings can be provided on request.

Steam Humidification The steam humidifier has injection tubes

with a steam jacket and condensate separator providing efficient

operation and maintenance. The system provides clean sterile

humidification without wetting and corrosion.


029 2085 8200150

BOXER MODULAR SUPPLY SYSTEMS

MODULAR COMPONENTS WHICH CAN BE ARRANGED IN

COMBINATION TO SUPPLY FRESH AIR, RECIRCULATED AIR OR A

MIXTURE OF BOTH WITHIN A BUILDING.

151nuaire.co.uk


BOXER MODULAR SUPPLY


Nuaire Modular Supply Equipment is a range of

components in modular form, which can be

arranged in combination to supply fresh air,

recirculated air or a mixture of both within a

building. The air can be heated or unheated,

filtered or unfiltered as required.

CHOICE OF MODULESModules are mainly of aluminium alloy and

externally flanged for connection together.

VERTICAL OR HORIZONTALARRANGEMENTSThe units can be arranged vertically or horizontally

and include include mixed flow fans, heaters, filters,

silencers, discharge heads, inlet bend, extensions

and recirculation sections.

COMPATIBLE ANCILLARIESLouvred wall terminals, prefabricated curbs and

soaker sheets are available.

AIR HEATED OR FILTEREDHeaters can be electric, hot water or steam types.

Recirculation modules can be operated directly, by

cord, electrically or pneumatically.

COMPATIBLE ROOF TERMINALSRoof terminals can be filtered or unfiltered.

Filter packs may be of a washable or disposable

type. This also applies to those fitted into filter

modules.

HIGH PERFORMANCEHigh performance mixed flow impeller.

WARRANTYBOXER Modular Supply systems have a

00 year warranty.

BENEFITS

INSTALLATION OPTIONS: TYPICAL ROOF TERMINAL INSTALLATION:

Terminal

Inlet section securing screwslocated into curb capping

Roof Terminal skirt fixing screws

Prefabricated Curb

Terminalmountingskirt

Bend Module

Angular Modular Supply system. Straight Modular Supply system with

high velocity discharge.

Aluminium Low Profile Terminal GRP Low Profile Terminal.(available with filters).

Typical assembly of a low profile roof terminal.

Roof terminal(GRP type)

Wall terminal

Code descriptions

1. = BOXER Module 2. = Size 650 sq 3. = Filter module4. = Washable

BM 6 - F W | | | |1 2 3 4

029 2085 8200152

A-Z AIR HANDLING UNITS INDEX

PRODUCT PAGE

A

BOXER Modular Supply 150

E

Ecosmart BOXER 94

Ecosmart Squrbo 90

O

OpusXBOX 34

U

Underbench Heat Recovery 112

X

XBOXER 55 56

XBOXER Custom AHU’S 140

XBOXER Heat Exchange 40

XBOXER Heat Exchange Twin Fans 64

XBOXER Run-around Coil 120

XBOXER Thermal Wheel 114

153nuaire.co.uk

NOTES

NUAIRE LIMITED

Western Industrial Estate | Caerphilly | CF83 1NA

t +44 (0)29 2085 8200 | f +44 (0)29 2085 8300 | e [email protected]

www.nuaire.co.uk

As part of our policy of continuous product development Nuaire reserves the right to alter specifications without prior notice.Telephone calls may be recorded for quality and training purposes.

Part Number 671554 Sept 2014

FOR MORE INFORMATIONwww.nuaire.co.uk

FAN SELECTORwww.nuaire.co.uk/fanselector

COMMERCIALwww.nuaire.co.uk/commercial

SMOKE SYSTEMSwww.nuaire.co.uk/smoke

NATURAL VENTILATIONwww.nuaire.co.uk/naturalventilation

RESIDENTIALwww.nuaire.co.uk/residential

Air handlings units catalogue

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Transcript of Air handlings units catalogue