C L A S S M A S T E R C H R 2 6 0 - Dunham-Bushdunham-bush.co.uk/brochures/heat_recovery_and...VHR...

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C L A S S M A S T E R

A masterclass in low energy ventilation for classrooms

V H R 5 0 - 6 0 0

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VHR Void Mounted Heat Recovery Units

General: Units shall be manufactured from high quality galvanized sheet steel with stainless steel drain trays, acoustic, non-hygroscopic class 'O' CFC & HFC-free, open cell expanded foam for thermal and acoustic insulation, fully compliant with London Boroughs and CAA flammability & toxicity requirements. Fans: Non-overloading, 100,000 hour life expectancy, low energy IP54 motor protection class, (maximum ambient 60°C), EC fans with sealed-for-life bearings individually mounted for ease of removal shall be fitted. S.F.P. The SFP on VHR recovery units will not exceed 0.9 w/l/s with an external static resistor of 50 Pa. Operation: VHR units shall incorporate 'variable mass' heat exchanger arrangement, (UK patent) that offers low noise, high heat recovery efficiency, very low energy input, very low maintenance and low dimensional profile while maintaining a full summer bypass facility and the ability to allow 50% turn-down of airflow while retaining up to 92% temperature efficiency. Optional integral recirculation damper shall be available for rapid warm up when used for space heating with ancillary LPHW coil. Filters: Low energy G4 filters shall be fitted as standard to reduce maintenance requirement, in typical situations, 1-2 years. Filter access shall be via removable panels and an F7 or F9 filter option shall be available on supply-air side for inner-city locations. Standard Space Heating Option: LPHW Coil option available. Configurations: Units shall offer eight 'installer interchangeable' spigot configurations as standard to suit site ductwork layouts. Control: ECO-PRO 3 controller shall be fitted as standard, offering: automated summer bypass, frost protection, night cooling, individual supply & extract fan speed adjustment. Dirty filter warning indication from optional integral pressure differential sensors and fan fault output.

• Fully compliant with non-domestic building services

directive 2013

• 89% efficient energy reclaim (Typical)

• 100,000 hour long life EC fans

• Adaptable ultra low profile design

• Void or surface mounted

• Summer bypass

• Night cooling

• 'Variable mass' heat exchanger - Patented

• BB101 & BB93 compliant

• Ultra low noise

• Simple installation

• Ultra low profile

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VHR Sound Data & Attenuators

Case Radiated Sound

Pressure Levels

VHR SERIES IN DUCT SOUND POWER DATA (dB ref. 10-12

W)

Model Air

Nominal

Airflow

(l/s)

63Hz 125Hz 250Hz 500Hz 1kHz 2kHz 4kHz 8kHz

*dBA

@3m

VHR50 Supply 50 38 57 51 47 47 51 42 36 18

Return 50 35 54 48 44 44 48 39 33

VHR100 Supply 100 29 55 52 50 49 52 41 37 19

Return 100 26 52 49 47 46 49 38 34

VHR150 Supply 150 42 59 56 51 51 50 40 35 21

Return 150 39 56 53 48 48 47 37 32

VHR200 Supply 200 43 62 59 53 53 52 42 37 24

Return 200 40 59 56 50 50 49 39 34

VHR260 Supply 260 41 58 56 52 50 49 38 33 22

Return 260 38 55 53 49 47 46 35 30

VHR300 Supply 300 36 64 58 52 50 50 40 33 23

Return 300 33 61 55 49 47 47 37 30

VHR400 Supply 400 38 65 59 55 53 52 43 36 25

Return 400 35 62 56 52 50 49 40 33

VHR500

Supply 500 38 58 55 53 52 51 39 32 24

Return 500 35 55 52 50 49 48 36 29

VHR600 Supply 600 40 60 57 55 54 53 41 34 26

Return 600 37 57 54 52 51 50 38 31

*Case radiated noise are A-weighted sound pressure levels measured at 3m (dB ref. 2x10-5 Pa)

LPHW Insulated Coil Modules

VHR LPHW Coil Size (single row - single circuit) Performance Data OUTPUT DATA:

Frost Coil Reheat Coil

Size W FH H (kW) (kW)

50 345 145 200 0.6 1.1

100 445 195 260 0.9 2.2

150 445 195 300 1.8 3.6

200 555 245 300 1.8 4.8

260 695 245 300 3.0 6.2

300 660 300 360 3.6 7

400 745 355 420 4.8 8.7

500 750 490 520 6.0 11.7

600 750 490 520 7.7 12.7

Note: Frost Coil outputs based on air on temperature of -5°C. Heater Coil outputs based on air on temperature of 20°C. All outputs based on LPHW 80/60°C

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VHR Airflow Performance

Model Nominal (l/s)

Max. Current(Amps)

Max. Power

(W)

Total SFP (W/l/s

@50Pa)

Total SFP (W/l/s

@100Pa)

Total SFP (W/l/s

@150Pa)

Thermal Efficiency

(%)*

Maximum condensate

(l/hr)

VHR50 50 0.4 45 0.8 0.9 1.1 87 0.8

VHR100 100 0.8 90 0.9 1.0 1.2 92 1.5

VHR150 150 1.1 135 0.9 0.95 1.1 91 2.3

VHR200 200 1.5 180 0.9 1.0 1.1 90 3.0

VHR260 260 1.8 233 0.75 0.9 1.1 87 3.8

VHR300 300 2.2 270 0.85 0.9 1.0 87 4.5

VHR400 400 2.6 360 0.75 0.8 0.9 88 6.0

VHR500 500 2.0 450 0.7 0.8 0.9 87 7.5

VHR600 600 2.0 540 0.6 0.75 0.9 88 9.0

*At nominal airflow: COLD SIDE E.A.T. -4°C/98% R.H. HOT SIDE E.A.T. 22°C /60% R.H.

Model Air Volume (l/s) @ External Resistance (Pa)

0 50 100 150 200

VHR 50 64 60 56 50 42

VHR 100 125 119 108 100 89

VHR 150 194 178 167 150 130

VHR 200 240 225 216 200 180

VHR 260 330 300 265 223 170

VHR 300 385 360 330 300 260

VHR 400 500 470 436 400 360

VHR 500 666 620 570 515 450

VHR 600 760 720 665 600 555

VHR Electrical & Technical Data 230V/1ph/50Hz

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VHR Heat Recovery Units - 50/100/150

Airflow Performance

Note: Allow additional 30Pa. for F7 filter (where fitted).

VHR50 Airflow Performance

(Pa) 0 50 100 150 200

(l/s) 64 60 56 50 42


(Pa) 0 50 100 150 200

(l/s) 125 119 108 100 89


(Pa) 0 50 100 150 200

(l/s) 194 178 167 150 130

Note: Do not select duties within shaded area - please refer to Dunham-Bush Technical Department for assistance with

selections

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(Pa) 0 50 100 150 200

(l/s) 235 222 208 192 167


Airflow Performance



(Pa) 0 50 100 150 200

(l/s) 330 300 265 223 170


(Pa) 0 50 100 150 200

(l/s) 385 360 330 300 260


selections

7


(Pa) 0 50 100 150 200

(l/s) 500 470 436 400 360


(Pa) 0 50 100 150 200

(l/s) 666 620 570 515 450


Airflow Performance



(Pa) 0 50 100 150 200

(l/s) 760 720 665 600 555


selections

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VHR Heat Recovery Units - VHR50/100

Dimensions & Weights:

VHR50

VHR100

9



VHR150

VHR200

10



VHR300

VHR260

11

VHR Heat Recovery Units - VHR400/500/600


VHR400

VHR500/600

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Eco-Pro3

Standard VHR Controller Options

Factory fitted and tested controller offers 'plug and play' functionality and is ideal where stand alone control is required. Unit can be activated via volt free contact (VFC) from time-switch or BMS signal (enable/disable signal) and also has the facility to give fault output to Eco-Fault panel or BMS. Individual adjustable fan speed settings on trickle and boost settings, with frost protection/automatic summer bypass/night cooling options included as standard.

ECO - Boost manual s/steel boost switch

EA-C02 wall mounted CO2 sensor

EA-PIR ceiling/wall mounted movement sensor

ECO - Fault LED s/steel fault panels

Other control options are available including duct mounted sensors. Please contact us for details

BMS Controller

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Optional Duct Configurations: VHR Range

View From Underneath

View From Underneath

L/A L/B

R/A R/B

L/C L/D

LEFT

HANDED

R/C R/D

RIGHT

HANDED

Dunham-Bush Ltd Downley Road, Havant, Hampshire, PO9 2JD Tel. 023 9247 7700 Fax. 023 9245 3601 Email: [email protected] www.dunham-bush.co.uk

323-000-000-A

June 2021

Service Support Dunham-Bush offers a range of services from

installation and commissioning to aftercare and

routine maintenance to suit all your needs. Our

Service Team has a wide range of experience and

knowledge of all refrigeration equipment, which

includes split A/C VRV or VRF air and water cooled

chillers and heat pumps. Continued support and

regular maintenance will help prevent any down time

of your equipment. All our engineers are fully trained

and hold current Skill Cards and F-Gas qualifications.

Dunham-Bush reserves the right to change any specification without notice.

Made in GB

P R O D U C T S T H A T P E R F O R M . . . B Y P E O P L E W H O C A R E

C L A S S M A S T E R C H R 2 6 0 - Dunham-Bushdunham-bush.co.uk/brochures/heat_recovery_and...VHR...

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