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nLight® & Sunoptics® Applications Guide

ASHRAE 90.1

www.acuitycontrols.com

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www.acuitycontrols.com • 800-535-2465

Intro

ACUITY CONTROLS

It’s not just smarter. It’s easier.

Acuity Controls is advanced lighting controls

technology, service and support from a single

expert source. We offer one of the industry’s

most extensive product portfolios for indoor and

outdoor applications; single rooms to campuses

to municipalities. Our product solutions include

occupancy and photosensors, centralized and

distributed systems, panels, fixture-integrated,

wired and wireless controls that simply work.

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ASHRAE 90.1: nLight Applications Guide

Table of Contents

Code Requirements for Common Building Spaces

How to Use This Guide

Private Office Solutions

Open Office Solutions

Conference Room Solutions

Classroom Solutions

Stairwell Solutions

Lobby Solutions

Restroom Solutions

Corridor Solutions

Network Control

Sunoptics® Daylighting Application Guide

About Daylighting

Daylighting Solutions

Appendix A – nLight Enabled Fixtures

Appendix B – Requirements Overview

04

05

06

10

12

14

17

18

20

24

26

27

28

32

35

36

TABLE OF CONTENTS

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Title 24 Lighting Control

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About

About ASHRAE 90.1ASHRAE 90.1 is an energy code designed to reduce

energy consumption. The ASHRAE 90.1 2010 energy

code has specific requirements for lighting controls.

The use of advanced lighting controls to synchronize

light levels with daylight, occupancy, and multi-level

control capability are required in order to be compliant.

About this GuideAcuity Controls offers the nLight® Applications Guide to

facilitate quicker and easier lighting controls solutions

to aid in complying with the requirements of ASHRAE

90.1. Use this guide as a quick reference of typical

nLight layouts that can help get your project on the

path towards compliance. The Acuity Controls Design

Services Team is also available to support engineers

and contractors with detailed design, submittal, and

installation. For additional information, please contact

your Acuity Brands® Sales Representative.

About nLightThe nLight networked digital lighting control system

is easy-to-use, easy-to-install and saves energy. Using

only standard CAT5e cable, nLight networks together

occupancy sensors, wall stations, and digital LED

luminaires to create a digital lighting system with

unmatched flexibility! nLight easily scales from one

room to an entire campus. Create a lighting control

solution that’s perfect for your space and need.

ABOUT

4 5


Code Requirements for Common Building Spaces

* Note: This summary is for general information purposes only and is provided without any warranty as to accuracy, completeness, or otherwise. The user should read the applicable code sections for more complete and detailed descriptions of code requirements and exceptions and should consult with a professional engineering or other competent advisor before making any decision or taking any action based on this summary.

**Requirement is for computer classrooms only.

The chart below is an overview of the Code Requirements for Common Building Spaces. Please use this information as a guide. For specific ASHRAE code requirements please refer to the ASHRAE 90.1 code.

Control Requirement*

Code Provision

Code Summary*

Space Type

Private Office Open Office

Conference, Meeting,

Multipurpose Room

Classroom, Lecture Hall,

Training RoomLobby Corridor Restroom Stairwell

Manual-On or Partial-On 9.4.1

Automatically controlled spaces must be either

manual-on by a local switch or auto-on to not more than 50%.

Full Automatic-On 9.4.1 Automatically controlled spaces

are allowed to turn on to full.

Programmable Timeclock 9.4.1.1a

Interior lighting shall be controlled with a time-of-day schedule

control that turns lighting off at specific programmed times.

Note: Occupancy sensors or another building control/alarm system that

indicate vacancy also comply.

Automatic Full-Off via Occupancy

Sensor

9.4.1.2b

Lights must be turned off within 30 minutes of vacancy by use of an occupancy sensor

or timer switch.

Automatic Partial-Off via

Occupancy Sensor

9.4.1.6gLighting should automatically reduce power by at least 50% within 30 minutes of vacancy.

Space (i.e. Local Switch) Control

9.4.1.2

Each space enclosed by ceiling-height partitions

shall have at least one readily accessible control device to

independently control the general lighting within the space.

Multi-Level / Dimming

Control9.4.1.2a

Controlled lighting shall have at least one control step between

30% and 70%, in additional to full on and full off.

Multi-Level Daylight Control

9.4.1.4, 9.4.1.5

The general lighting in primary sidelit areas (250ft2 or larger)

or daylight areas under skylights (900ft2 or larger) shall be

separately controlled by at least one multilevel photocontrol,

which can be continuous dimming.

Automatic Receptacle

(i.e. Plug Load) Control

8.4.2

50% of all receptacles, including those installed in modular

partitions, shall be automatically turned off by a control device.

**

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How to Use This Guide

8 9


nPODM DXnPP20 PL

nCM PDT 9 (RJB)

nCM ADCX (RJB)

PRIVATE OFFICE: Windows, nLight Enabled Fixtures

CAT-5e Cable

Line Voltage Wires

Line Power Feed

0-10V Wires

OPERATION DETAILS: ADDITIONAL OPTIONS:

Lights:

¡ All lights are dimmable

¡ All fixtures controlled together or independently

¡ Maximum level can be limited to 80%

¡ Optional automatic lumen compensation

Occupancy Control:

¡ Lights must be turned on manually (or optionally can be configured to come on automatically to 50%)

¡ Plug load turns on automatically

¡ Lights & plug load turn off when room becomes vacant

Daylight Control:

¡ Smooth continuous dimming

¡ Custom grouping of fixtures into separate daylight zones (max. number zones = number of fixtures)

¡ Not required in spaces without side lit areas > 250 ft.2

Manual Control:

¡ On/off & raise/lower control of lights

¡ Surface or recessed mount sensors also available

¡ Room can be connected to nLight backbone to enable network control including time based controls and integration with building management systems (see pg. 26)

¡ For emergency lighting control, order fixtures with -n80EMG or -n100EMG option

Supports the Following Requirements:

¡ Local Switch (Section 9.4.1.2)

¡ Multi-Level / Dimming Control (Section 9.4.1.2a)

¡ Automatic Full-Off via Occupancy Sensor (Section 9.4.1.2b)

¡ Multi-Level Daylight Control (Section 9.4.1.4/5)

¡ Plug-Load Control (Section 8.4.2)

Bill of Materials

Symbol Qty Product # Description

4 See Appendix A nLight Enabled Fixture

1 nPP20 PL Plug Load Relay Pack

1 nPODM DX On/Off & Raise/Lower WallPod

1 nCM PDT 9 (RJB) Dual Technology Occupancy Sensor

Options

1 nCM ADCX (RJB)Automatic Dimming Photocell — If area from sidelighting is >250 ft.2

Operational details describe the functionality provided by the equipment specified in the solution

Room description Room layout with devices & locations

Room layout diagram with control, fixture,and wiring type detail

Required list ofdevices in order to implement room layout design above

Additional options that add control capacity beyond code requirements

Quick summary of applicable code sections

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PRIVATE OFFICE: No Windows, nLight Enabled Fixtures

Note: For a wall mount switch and occupancy sensor, substitute the nPODM DX with a nWSX PDT LV DX and remove the nCM PDT 9 (RJB)

CAT-5e Cable

Line Voltage Wires

Line Power Feed

0-10V Wires

¡ Recessed mount sensors also available



Lights:





Occupancy Control:


¡ Plug-load turns on automatically

¡ Lights and plug-load turn off when room becomes vacant

Manual Control:



nPP20 PL nPODM DX

nCM PDT 9 (RJB)

Bill of Materials





1 nCM PDT 9 (RJB)Dual Technology Occupancy Sensor (Small Motion)






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Note: For a wall mount switch and occupancy sensor, substitute the nPODM DX with a nWSX PDT LV DX and remove the nCM PDT 9 (RJB)

PRIVATE OFFICE: No Windows, 0-10V Dimming Fixtures

CAT-5e Cable

Line Voltage Wires

Line Power Feed

0-10V Wires


¡ Substitute relay pack model nPP16 D SA for default manual-on configuration or nPP16 D PA for default auto-on to 50% configuration


¡ For emergency lighting control add model nPP16 D ER

Lights:


¡ All fixtures controlled together


Occupancy Control:




Manual Control:



nPODM DX

nCM PDT 9 (RJB)

nPP16 D

nPP20 PL

Bill of Materials


1 nPP16 D Relay Pack with 0-10V Dimming Output



1 nCM PDT 9 (RJB)Dual Technology Occupancy Sensor (Small Motion)






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nPODM DXnPP20 PL

nCM PDT 9 (RJB)

nCM ADCX (RJB)

PRIVATE OFFICE: Windows, nLight Enabled Fixtures

CAT-5e Cable

Line Voltage Wires

Line Power Feed

0-10V Wires


Lights:





Occupancy Control:




Daylight Control:




Manual Control:











Bill of Materials






Options


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nPODM DXnPP20 PL

nCM PDT 9 (RJB)

nCM ADCX (RJB)

nPP16 D

CAT-5e Cable

Line Voltage Wires

Line Power Feed

0-10V Wires

PRIVATE OFFICE: Windows, 0-10V Dimming Fixtures


Lights:


¡ All fixtures are controlled together


Occupancy Control:




Daylight Control:



Manual Control:



¡ Substitute model nPP16 D SA for default manual on functionality or nPP16 D PA for default auto-on to 50% functionality









Bill of Materials


1 nPP16 D Relay Module with 0-10V Dimming Output




Options


*If daylighting is required, additional relay pack(s) may also be required.

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OPEN OFFICE with nLight Enabled Fixtures

nCM PDT 9 (RJB)

EMGEMG

nCM PDT 9 (RJB)

nCM PDT 9 (RJB)

nCM PDT 9 (RJB)

nCM ADCX (RJB)

nPODM DX

nPP20 PL

nPP20 PL

nPODM DX

CAT-5e Cable

Line Voltage Wires

Line Power Feed

EM Power Feed

0-10V Wires

Note: Not all emergency nLight enabled fixtures require a normal monitoring feed. Refer to data sheet for additional information.


¡ Add model nPODM 4S DX for four scene with manual dimming control

¡ Add Graphic WallPod (model nPOD GFX) for individual row and up to 16 scene control


Lights:





Occupancy Control:




Daylight Control:



Manual Control:


¡ Optional individual row control (add nPODM 4P DX)

ADDITIONAL OPTIONS: OPERATION DETAILS:

Bill of Materials



2 See Appendix A nLight Enabled Fixture with the EMG Option




1 nCM ADCX (RJB) Automatic Dimming Control Photocell







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nCM PDT 9 (RJB)

nCM PDT 9 (RJB)

nCM PDT 9 (RJB)

nCM PDT 9 (RJB)

nCM ADCX (RJB)

nPODM DX

nPP20 PL

nPP20 PL

nPODM DX

nPP16 D

nPP16 D ER

nPP16 D

nPP16 D

nPP16 D

OPEN OFFICE with 0-10V Dimming Fixtures

CAT-5e Cable

Line Voltage Wires

Line Power Feed

EM Power Feed

0-10V Wires


¡ Add additional relay pack (model nPP16 D) if a white board lighting zone also required



Lights:


¡ Each row controlled independently


Occupancy Control:




Daylight Control:


¡ Daylight zones defined by rows


Manual Control:




Bill of Materials



1 nPP16 D ER Emergency Relay Module with 0-10V Dimming Output





nPP16 D ER







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CONFERENCE ROOM with nLight Enabled Fixtures

nCM ADCX (RJB)

nCM PDT 9 (RJB) nPODM DX

CAT-5e Cable Line Voltage Wires Line Power Feed 0-10V Wires

OPERATION DETAILS:


¡ Add nPODM 4S for four scene or nPOD GFX for touch screen control



Lights:





Occupancy Control:


¡ Lights automatically turn off when room becomes vacant

Daylight Control:


¡ Custom grouping of fixtures into separate daylight zones (max. number of zones = number of fixtures)


Manual Control:


ADDITIONAL OPTIONS:

Bill of Materials





Options







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nCM ADCX (RJB)

nCM PDT 9 (RJB)nPODM DX

nPP16 D

CONFERENCE ROOM with 0-10V Dimming Fixtures

*If daylighting is required, additional relay pack(s) may also be required.

OPERATION DETAILS:


¡ Model nPP16 D PA for default auto-on to 50%



Lights:





Occupancy Control:



Daylight Control:


¡ Daylight zones defined by rows


Manual Control:


ADDITIONAL OPTIONS:

Bill of Materials





Options







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CLASSROOM* with nLight Enabled Fixtures

*Apply this design to classrooms, lecture halls or training rooms.

Note: Not all emergency nLight enabled fixtures require a normal monitoring feed. Refer to data sheet for additional information.

CAT-5e Cable

Line Voltage Wires

Line Power Feed

EM Power Feed

0-10V Wires

nPODM 4S DXnWV PDT 16

EMGEMG

nPODM DX

nCM ADCX (RJB)

OPERATION DETAILS:




¡ Add plug load control for computer classrooms as required per code provision 8.4.2

Lights:


¡ Each row/fixture controlled independently



Occupancy Control:



Daylight Control:




Manual Control:


¡ Optional 4 scene control

ADDITIONAL OPTIONS:

Bill of Materials



2 See Appendix A nLight Enabled Fixture with the EMG Option


1 nWV PDT 16 Dual Technology Wide View Occupancy Sensor

Options

1 nPODM 4S DXTeacher Station — 4 Scene Control Master On/Off & Raise/Lower







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CAT-5e Cable

Line Voltage Wires

Line Power Feed

EM Power Feed

0-10V Wires

nPODM 4S DX nPODM DXnWV PDT 16

nPP16 D

nPP16 D

nPP16 D ER

nPP16 D

nCM ADCX (RJB)

CLASSROOM* with 0-10V Dimming Fixtures (Distributed Relays)

OPERATION DETAILS:


¡ Add additional relay pack (model nPP16 D) if a white board lighting zone also required




Lights:




Occupancy Control:



Daylight Control:


¡ Provides up to three daylight zones, each controlled independently


Manual Control:



ADDITIONAL OPTIONS:

Bill of Materials



1 nPP16 D ER Emergency Relay Module with 0-10V Dimming Output



Options








nPP16 D ER

16 17


nPODM DXnPODM 4S DX

nCM ADCX (RJB)

nWV PDT 16

nPANEL 4

CLASSROOM* with 0-10V Dimming Fixtures (Panel Alternative)



OPERATION DETAILS:

Lights:




Occupancy Control:



Daylight Control:


¡ Provides up to three daylight zones, each controlled independently


Manual Control:




¡ 4th relay available in panel for connection to additional lighting zone (e.g., white board)



¡ For emergency lighting control add barrier to nPANEL

¡ Add plug load control for computer classrooms, as required per code provision 8.4.2

ADDITIONAL OPTIONS:

Bill of Materials


1 nPANEL 4Four Relay Module with 0-10V Dimming Output and EM Options




Options







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nPODM DX

nCM 10 (RJB)nPP16 D

STAIRWELL with 0-10V Dimming Fixtures

CAT-5e Cable

Line Voltage Wires

Line Power Feed

0-10V Wires

OPERATION DETAILS:




¡ For sidelit areas >250ft2 or skylit areas >900ft2, add nCM ADCX (RJB) for daylight control

Lights:



Occupancy Control:

¡ Lights automatically drop to 50% (or lower) when space becomes vacant

Auto-Off Control:

¡ Lights automatically turn off when the space becomes vacant or can be shut-off via timeclock (see pg. 26 for programmable timeclock)

Manual Control:


ADDITIONAL OPTIONS:

Bill of Materials




1 nCM 10 (RJB) PIR Extended Range Occupancy Sensor




¡ Automatic Partial or Full-Off via Occupancy Sensor (Section 9.4.1.6g/2b)

¡ Automatic Off via Programmable Timeclock (see pg. 26) (Section 9.4.1.1a)

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LOBBY with nLight Enabled Fixtures

nCM PDT 10 ADCX (RJB)

nPODM DX


Bill of Materials




1 nCM PDT 10 ADCXDual Technology Extended Range Occupancy Sensor With Automatic Dimming Photocell

Lights:





Occupancy Control:

¡ Lights automatically go to full bright when occupied

¡ Lights automatically turn off when space becomes vacant

Daylight Control:



¡ Not required for spaces without side lit areas > 250 ft.2

Manual Control:




¡ Space/zone can be connected to nLight backbone to enable network control including time based controls and integration with building management systems (see pg. 26)

¡ For emergency lighting control, order fixture with -n80EMG or -n100EMG option





18 19


nCM PDT 10 ADCX (RJB)

nPODM DX

nPP16 D


LOBBY with 0-10V Dimming Fixtures

Bill of Materials




1 nCM PDT 10 ADCX (RJB)Dual Technology Extended Range Occupancy Sensor With Automatic Dimming Photocell

Lights:




Occupancy Control:



Daylight Control:


¡ Not required for spaces without side lit areas > 250 ft.2

Manual Control:




¡ Model nPP16 D PA for default auto-on to 50%







20 21


PRIVATE / SINGLE RESTROOM with nLight Enabled Fixture

nWSX PDT LV DX


Lights:




Occupancy Control:



Manual Control:

¡ On/off & raise/lower control of light




¡ For emergency lighting control add -n80EMG or -n100EMG to fixture option

Bill of Materials



1 nWSX PDT LV DX On/Off & Raise/Lower Dual Tech Occupancy Switch




20 21


nWSX PDT LV DX nPP16 D


Bill of Materials



1 nWSX PDT LV DX On/Off & Raise/Lower Dual Tech Occupancy Switch

PRIVATE / SINGLE RESTROOM with 0-10V Dimming Fixtures

Lights:



Occupancy Control:



Manual Control:

¡ On/off & raise/lower control of light








22 23


PUBLIC RESTROOM with nLight Enabled Fixtures

nCM PDT 9 (RJB) nCM PDT 9 (RJB)

nCM PDT 9 (RJB) nCM PDT 9 (RJB)

nPODM DX nPODM DX


Bill of Materials (Each Restroom)





Lights:


¡ All fixtures are controlled together or independently



Occupancy Control:



Manual Control:





¡ For emergency lighting control add -n80EMG or -n100EMG to fixture option




22 23




nCM PDT 9 (RJB)nCM PDT 9 (RJB)

nPP16 D nPP16 D


PUBLIC RESTROOM with 0-10V Dimming Fixtures

Bill of Materials (Each Restroom)





Lights:


¡ All fixtures are controlled together (per room)


Occupancy Control:



Manual Control:




¡ Substitute model nPP16 D PA for default auto-on to 50% functionality






24 25


CORRIDOR with nLight Enabled Fixtures

nCM 10 (RJB) nCM 10 (RJB)

nCM 10 (RJB)

nCM 10 (RJB)

nPODM DX

nPODM DX


Bill of Materials





Lights:





Occupancy Control:



Manual Control:





¡ For emergency lighting control use -n80EMG or -n100EMG to fixture option





24 25


nCM 10 (RJB) nCM 10 (RJB)

nCM 10 (RJB)

nCM 10 (RJB)

nPODM DX

nPP16 D nPODM DX


CORRIDOR with 0-10 Dimming Fixtures

Lights:




Occupancy Control:



Manual Control:

¡ On/off & raise /lower control of lights



¡ Space/zone can be connected to nLight backbone to enable network control including time based controls and integration with building management systems (see pg.26)



Bill of Materials








26 27


nLight Networked Lighting Control: Programmable Timeclock

1 2 3

Bridge Gateway2

nPODM DXnPP20 PL

nCM PDT 9 (RJB)

nCM ADCX (RJB) nCM ADCX (RJB)

nCM PDT 9 (RJB) nPODM DX


Programmable Timeclock Control:Although not pictured within each of

the individual room design guides,

each nLight Control Zone can be

connected via an nLight backbone

to create a networked nLight lighting

control system capable of meeting

the requirements of the ASHRAE 90.1

programmable timeclock provision

(Section 9.4.1.1a). A networked

system also enables astronomical

time clock control.

For additional information regarding

building management integration or

demand response features, please

contact your Acuity Brands Sales

Representative.

Bill of Materials


1 nBRG 8 KIT 8-Port Backbone Bridge

1 nGWY2 KIT Network Gateway Controller

26 27


nLight Networked Lighting Control: Programmable Timeclock

Daylighting Application

Guide

28 29


About Daylighting

Daylighting or Daylight Harvesting is the intentional

utilization of daylight to illuminate rooms and allowing

partial dimming or full shut-off of electrical light sources.

Modern Daylighting consists of skylights, LED lighting and

lighting controls in order to harvest the daylight in a way

that will optimize the efficiencies of electric and natural

lighting through the lighting control system.

In order to utilize the daylight in a room there has be a

digital photosensor installed in the space. The sensor

can be embedded in the fixture or separate. The

photosensor will detect the daylight in the room and

automatically adjusts the artificial lighting to maintain

the pre-determined light level.

ABOUT DAYLIGHTING

Components of a Daylighting System

• Types of Daylight Harvesting:

∙ Toplighting - Daylight entering the space via

skylights, monitors, clerestories, active and

passive light tubes

∙ Sidelighting - Daylight entering the space

from windows and light shelves

• Lighting:

There are many types of lighting used in

a daylighting system. The most popular are

fluorescent or LED luminaires. LED luminaires

have gained in popularity due to their inherent

energy efficiency, long-life and easy of control

relative to other light sources.

• Photosensor for Lighting Controls – there are

three types of lighting controls:

∙ Closed Loop - The photocontrol receives

feedback regarding the amount of natural

light in the room and adjusts the light levels

according to the pre-determined set-point.

∙ Open Loop - The photocontrol is provided

only from external sources, therefore the

light levels are determined; for example,

full-on, 50% dim level or off.

∙ Luminaire Mounted - The photocontrol is

embedded in the luminaire.

28 29


About Daylighting About Daylighting

Code Compliance

Daylighting is a great way to conserve energy by

using the natural light from the sun. Daylighting

in a building encompasses the natural light from a

window or skylight. Ashrae 90.1 has incorporated

daylighting into the code requirements.

There are two types of daylighting that are

mandated from the Ashrae code, Toplighting

and Sidelighting; toplighting refers to the use

of skylights in a space and Sidelighting is light

coming from the windows in a space. Each type

of daylighting has code requirements dependent

on the building type and lighting controls. Below

is a quick overview of the code requirements.

ASHRAE 90.1 Codes and Daylighting Requirements for Skylights/Top Lighting

ASHRAE 90.1 -2010 ASHRAE 90.1 -2013 additions or changes

Buildings less than 4 stories

Minimum Skylights fenestration area in enclosed space directly under roof - spaces over 15’ height and 2500 sq.ft. with daylight responsive controls

Spaces over 15 ft. high and 5000 ft² floor space with daylight responsive controls

• Minimum skylight area to daylight area under skylights of 3% with a skylight VT of at least 0.40 • Haze value of >90%

When the total daylight area under skylights and rooftop monitors is more than 900 sq.ft., lamps in area must be separately controlled by at least one multi-level photocontrols with the following:

• Light sensor for the photocontrols shall be remote from where calibration adjustments are made

• Calibration adjustments shall be readily accessible

• Multi-level photocontrol at least 2 steps – between 0 - 35% and 50 - 70%

• Or continuous dimming

Spaces where combined input power for all general lighting with a combined input power of 150W or greater for general lighting completely or partially within the daylight areas under skylights and roof monitors.

• Required characteristics: ∙ Adjustments readily accessible ∙ Lighting in overlapping sidelighted and top lighted areas shall be controlled together ∙ Multi-level set points: OFF/20-40%/50-70%/ON

• Exceptions: ∙ Certain external obstructions ∙ Skylight VT < 0.4 ∙ Spaces in climate zone 8 where general lighting is < 200W

30 31


About Daylighting

Daylighting Calculations for Code Compliance

Daylighting is very powerful and saves energy but there is a bit of brain power to achieve. To properly assess whether the

daylighting design is code compliant in a space there are a few calculations necessary. There are two standard methods

for calculating the energy performance for code compliance in a space; Prescriptive and Performance Approach.

TABLE 5.5 Non-Residential Building Envelope Requirements for Plastic SkylightsZone Zone 1 Zone 2 Zone 3 Zone 4 Zone 5 Zone 6 Zone 7 Zone 8

Roof CoverageMax.

U Factor SH

GC Max.

U Factor SH

GC Max.

U Factor SH

GC Max.

U Factor SH

GC Max. U

Factor SHG

C Max. U

Factor SHG

C Max. U

Factor SHG

C Max. U

Factor SHG

C

0% to 2% 1.90 0.34 1.90 0.39 1.30 0.65 1.30 0.65 1.10 0.77 0.87 0.71 0.87 0.77 0.61 NR

2.1% to 5% 1.90 0.27 1.90 0.34 1.30 0.34 1.30 0.34 1.10 0.62 0.87 0.58 0.87 0.71 0.61 NR

Performance - The performance path measures the

performance of the whole building. This path is more

complicated but can result in substantial savings. There

are materials/components in the building envelope that

are much more efficient than required so the performance

of components that do not quite meet the prescriptive

requirements can be offset with the performance of more

efficient materials. This can help save thousands if not tens

of thousands of dollars in construction and material cost.

Prescriptive - The most common approach used is the

prescriptive approach because of the ease of which the

information at component level can be obtained. It is

intended to measure the performance of each component.

For example, a skylight with a U factor of at least 0.70. One

major drawback of this approach for daylighting is that

it does not consider the system wide benefits achieved

through the interaction of the skylights with other parts of

the building design.

Solar Heat Gain Coefficient (SHGC)

Another important element in Daylighting is the Solar Heat Gain Coefficient, which measures the amount of heat transferred into

the space through the skylight. The tradeoff is that the most common methods to reduce SGHC also reduce the amount of light

provided by skylight as measured by Visual Transmittance (VT). The loss of light means less energy savings since it will require

the electrical lighting to be on for more hours during the day. Calculations can be done through a program called SkyCalc™ to

optimize the use of skylights with an HVAC system to maximize energy savings.

The ASHRAE code has requirements regarding SHGC when the skylight is not utilized in a daylighting system with lighting

controls. From a design perspective, lighting controls should always be considered to control the use of electric light when free

natural light is available.

30 31


About Daylighting About Daylighting

Calculating Daylighting Area Overview

The following is a quick overview of how to calculate a daylight area which is required to understand the controls

requirements for daylight harvesting.

H x 70%

H=20 ft35° 35°

20’ x 70% = 14’

4 ft x 8 ftTop Lighting

Use the smallest out of the following:

• Skylight dimensions + 70% ceiling height

(in each direction) or

• Half the distance to the next skylight

• Distance to any primary side lighted area

• Or the distance to the front face of any obstruction

For example: a 4ft x 8ft skylight would have a daylighting area of 396 ft². (4ft + 14ft)*(8ft + 14ft) = 396 ft². Reference ASHRAE 90.1 Standards for calculating daylighting area. This is required to understand the daylighting harvesting controls for daylighting spaces.

32 33


CLASSROOM with Skylights

Note: Automatic receptacle control required in computer classrooms.

CAT-5e Cable

Line Voltage Wires

Line Power Feed

nPODM 4S DXnWV PDT 16

nPODM DX

nCM ADCX

OPERATION DETAILS:





Lights:





Occupancy Control:



Daylight Control:



¡ Not required in spaces without side lit areas < 250 ft.2

Manual Control:

¡ Master on/off & raise/lower control of entire room


ADDITIONAL OPTIONS:

Bill of Materials



8 SLFT Lightflex Tubular Skylights



Options


1 nCM ADCX Automatic Dimming Control Photocell






32 33


OPEN OFFICE with Skylights

nCM PDT 9 (RJB)

nCM PDT 9 (RJB)

nCM PDT 9 (RJB)

nCM PDT 9 (RJB)

nCM ADCX (RJB)

nPODM DX

nPP20 PL

nPP20 PL

nPODM DX

CAT-5e Cable

Line Voltage Wires

Line Power Feed


¡ Add model nPODM 4S DX for four scene with manual dimming control




Lights:


¡ Each row/fixture controlled independently


¡ Optional automatic lumen maintenance

Occupancy Control:

¡ Lights automatically turn on when occupant enters the space (or optionally can be configured to come on to 50%)

¡ Lights turn off when room becomes vacant

¡ Plug load is auto on/off

Daylight Control:



¡ Not required in spaces without side lit areas < 250 ft.2

Manual Control:

¡ Master on/off & raise/lower control of entire room



Bill of Materials














34 35


PRIVATE OFFICE with Skylight

CAT-5e Cable

Line Voltage Wires

Line Power Feed




Lights:





Occupancy Control:




Manual Control:



nPP20 PL nPODM DX

nCM PDT 9

Bill of Materials


2 2FSL2 40L EZ1 LP835 N80 nLight Enabled Fixture




1 nCM PDT 9 Dual Technology Occupancy Sensor






34 35


APPENDIX A: nLight Enabled Fixtures

Product Family Fixture Series Notes

Lithonia Lighting AC Series LED Recessed

Lithonia Lighting AL SeriesLED High Performance Architectural Recessed

Lithonia Lighting ALLS LED Surface Mount

Lithonia Lighting AVLED Avante® LED Recessed - Direct/Indirect

Lithonia Lighting BZL Series LED Recessed Indirect

Lithonia Lighting FSL Series LED Recessed

Lithonia Lighting RT Series LED Recessed Volumetric

Lithonia Lighting T Series LED Recessed Troffer

Lithonia Lighting VT Series LED Recessed Volumetric

Lithonia Lighting GT Series General Recessed Troffer

Lithonia Lighting SBS Series LED Shadow Box Square

Lithonia Lighting WL Series LED Wall Bracket Surface Mount

Lithonia Lighting RTLX LED Surface Volumetric

Lithonia Lighting ST LED LED Surface Volumetric

Lithonia Lighting IBL / IBH LED Highbay

Lithonia Lighting PTN LED Highbay - Proteon

Lithonia Lighting LDN Downlight

Lithonia Lighting ACLX AC Series Surface Mount

Lithonia Lighting RTLR LED Relight Volumetric Recessed Mount

Lithonia Lighting RTLEDRT Relight Volumetric for Lensed Troffers

Lithonia Lighting SBS LX LED Relight Shadow Box Square

Lithonia Lighting T LX LED Relight Surface Mount

Lithonia Lighting VTL RT LED LED Relight Lensed Troffers

Lithonia Lighting VTLR LED LED Relight Parabolic Lensed

Lithonia Lighting VTLX LED Relight Volumetric Surface Mount

Gotham EVO LED Downlight

Gotham Incito LED Downlight

Product Family Fixture Series Notes

Mark Architectural Lighting Slot 4 LEDPendant, Wall, Surface, Recessed

Mark Architectural Lighting Slot 6 LED Recessed

Mark Architectural Lighting Fin LED Recessed

Mark Architectural Lighting Whisper LED Recessed

Mark Architectural Lighting Nol LED Recessed

Mark Architectural Lighting SPR LED Perimeter

Peerless Vellum LED Suspended, Recessed

Peerless Mino LED Recessed

Peerless Round 2/4 LED Suspended, Wall

Peerless Square LED Suspended, Wall

Peerless Origami LED Suspended, Wall

Peerless Bruno LED Suspended, Wall

Peerless Staple Suspended, Wall

Peerless Lightline, Indirect Suspended

Peerless Lightedge Suspended

Peerless Icetray Suspended

Peerless Cerra Suspended

Peerless Prima Suspended

Peerless Naro Suspended

Peerless Tulip Suspended

Peerless Envision Suspended

Peerless Aero Suspended

Peerless Enzo Suspended

Note: New nLight enabled fixtures added regularly. Please reference fixture spec sheets for nLight enabled options.

36 37


APPENDIX B: Requirements Overview

Control Requirement

Code Provision Code Summary* Recommendations for

Compliance nLight Solution Details

Space (i.e. Local Switch) Control

9.4.1.2

Each space enclosed by ceiling-height partitions shall have at least one readily accessible control device to independently control the general lighting within the space.

Include manual control device(s) in all room control system designs

nLight WallPod devices provide a user with local control of lighting within an nLight controlled space (i.e. nLight zone). WallPods are available in multiple styles — each with varying features and user experience.

Push-Button WallPod Graphic WallPod

Traditional tactile buttons and LED user feedback.

Full color touch screen provides a sophisticated look and feel.

Programmable Timeclock 9.4.1.1a

Interior lighting shall be controlled with a time-of-day schedule control that turns lighting off at specific programmed times. Note: Occupancy sensors or another building control/alarm system that indicate vacancy also comply.

Utilizing controls capable of being networked across an entire building enables simple compliance via a single central programmable time clock.

Individual nLight Control Zones (ie rooms) can be easily networked together across an entire building simply by connecting them into a “backbone” made up of one or more nLight Bridge devices and an nLight Gateway. The Gateway provides programmable time clock functionality for an nLight network as well as interfaces to the SensorView Suite of web-based software applications (via an Ethernet LAN / WAN connection).

Network Gateway

Additional benefits of installing an nLight backbone include remote status monitoring, iOS smartphone app control, and BMS interface capability

Automatic Full-Off via Occupancy Sensor

9.4.1.2b

Lights must be turned off within 30 minutes of vacancy by use of an occupancy sensor or timer switch.

Always include occupancy sensors in all control system designs regardless of lighting type.

nLight occupancy sensors utilize 100% digital passive infrared (PIR) detection, come in several mounting styles, and offer multiple coverage pattern options. Additionally, nLight sensors are available with patented MicrophonicsTM dual technology detection for rooms with obstructions. Configuring for full off vs partial off control is done with system programming.

Automatic Partial-Off via Occupancy Sensor

9.4.1.6gLighting should automatically reduce power by at least 50% within 30 minutes of vacancy.

Always include occupancy sensors in all control system designs.

Reducing the level of dimmable fixtures to 50% is easiest method of compliance, however turning off 50% of lighting via circuit switching is also an option.

360° Occupancy Sensor 120° WideView Corner Sensor

Surface or recessed mounts to ceiling tiles or sheetrock/plaster.

Directly mounts in corner or to ceiling via repositionable ceiling bracket.

Shut

-Off

Cont

rol


36 37


APPENDIX B: Requirements Overview

Automatic Receptacle (i.e. Plug Load) Control

8.4.2

50% of all receptacles, including those installed in modular partitions, shall be automatically turned off by a control device.

Since the same automatic shut-off requirements apply to receptacles and lighting, utilizing the same occupancy sensors for both is the simplest method of compliance.

The nLight Plug-Load relay pack is capable of switching an entire 20A receptacle load. Simply add into an nLight Control Zone (room) with an occupancy sensor and the unit will automatically switch off when the room is vacant. Local manual switch control of receptacles is not required and therefore is disabled by default.

Plug Load / Receptacle Relay Pack

Control Requirement

Code Provision Code Summary* Recommendation for

Compliance nLight Solution Details

Multi-Level /Dimming Controls

9.4.1.2a

Controlled lighting shall have at least one control step between 30% and 70%, in additional to full on and full off. Not required for spaces with one luminaire rated <100 W or for spaces with lighting power allowance of <0.6 W/ft2.

Continuously dimmable LED (or fluorescent) fixtures and manual dimming controls are the easiest method of compliance.

nLight provides multiple options for controlling continuous dimming luminaires. This allows spaces with several lighting types and technologies to be controlled together and with a common user experience.

nLight enabled Acuity Brands Fixtures Dimming Relay Packs / Panels

Acuity offers a wide variety of LED fixtures with factory installed integrated nLight controls that provide smooth continuous dimming, and optional automatic lumen maintenance or manual task tuning.

nLight dimming relay packs / panels enable control of any 0-10VDC dimmable LED (or fluorescent) luminaire. Manual task tuning control can also be used.

Multi-Level Daylight Controls

9.4.1.4,9.4.1.5

The general lighting in primary sidelit areas (250ft2 or larger) or daylight areas under skylights (900ft2 or larger) shall be separately controlled by at least one multilevel photocontrol, which can be continuous dimming.

Automatic daylight harvesting photocells that continuously adjust the level of dimming fixtures according to daylight levels provide the most effective and least distracting control.

nLight offers standalone daylight harvesting sensors as well as occupancy sensors with integrated daylight harvesting. Sensors are available in four different housings and provide continuous dimming control of any/all networked nLight enabled fixtures or dimming relay packs, each capable of being its own daylight zone.

Ceiling Mount Dimming Photocell Recessed Mount Dimming Photocell

Light

Leve

l Con

trol

Addi

tiona

l Con

trols


One Lithonia Way | Conyers, Georgia 30012 | Phone: 800.535.2465©2015 Acuity Brands Lighting, Inc. All rights reserved. | 04/15 | SSI_1832One Lithonia Way | Conyers, Georgia 30012 | Phone: 800.535.2465©2015 Acuity Brands Lighting, Inc. All rights reserved. | 11/15 | SSI_2405

Additional Resources:

Acuity Controls Typical Layout Drawingshttp://www.acuitybrands.com/typicals

ASHRAEhttps://www.ashrae.org/

Use the Following Sections of the ASHRAE 90.1 2010 Code as Reference:Section 8.4.2 – Automatic Receptacle Control

Section 9.4.1 – Lighting Control

Section 9.4.1.1 – Automatic Lighting Shutoff

Section 9.4.1.2 – Space Control

Section 9.4.1.3 – Parking Garage Lighting Control

Sections 9.4.1.4/5 – Automatic Daylighting Controls

Section 9.4.1.6 – Additional Control

Section 9.4.1.7 – Exterior Lighting Control

Section 9.4.4 – Functional Testing

ASHRAE 90 - Sunopticssunoptics.acuitybrands.com/-/media/files/sunoptics/resources... · The nLight...

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