title24 residential lighting design guide 2008

8/8/2019 Title24 Residential Lighting Design Guide 2008

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TiTle 24ResidenTial lighTing design guide

DevelopeD by the California lighting teChnology Center

B t ctic i ti i t b i c mit C i i 2008 T t e 24 Bu d ng Ene gy Eff c ency St nd ds
http://cltc.ucdavis.edu/http://cltc.ucdavis.edu/


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Message froM sponsorsThe changes to Cali ornias 2008 Title 24 Buildi g E erg E cie c St d rds represent a signi cant opportunity or increased energy savings and reducedmaintenance. However, these changes also present new challenges or buildersand installation pro essionals with demands or improved technology and higher

energy e ciency.

The 2008 Title 24, P rt 6 revisions were developed through a consensus process,incorporating changes that require minimal disruption to current practice.Considering this collaborative approach and the potential or implementationchallenges, a consortium representing broad interests developed this designguide or the builder community.

The Reside ti l Lig ti g Desig Guide provides a practical approach to lightingcode compliance and design, including a broad array o example designs aswell as technical and compliance in ormation organized in a step-by-step ormat.The guide aims to assist in the process o developing compliant, high-qualitylighting designs.

This guide will greatly help the building community deliver high-per ormance,energy-e cient lighting systems to homeowners in a cost-e ective manner.

SponSorS:

Cali ornia Energy Commission Public Interest Energy Research (PIER) Sacramento Municipal Utility DistrictWattStopper

Special ThankS:

The Reside ti l Lig ti g Desig Guide was developed by the Cali ornia LightingTechnology Center, with special thanks to Erik Jensen and Gary Flamm rom theCali ornia Energy Commission and Connie Samla rom Sacramento MunicipalUtility District or their contributions.
http://www.energy.ca.gov/http://www.energy.ca.gov/research/index.htmlhttp://www.smud.org/http://wattstopper.com/http://cltc.ucdavis.edu/http://wattstopper.com/http://www.energy.ca.gov/research/index.htmlhttp://www.smud.org/http://wattstopper.com/http://www.smud.org/http://www.energy.ca.gov/research/index.htmlhttp://www.energy.ca.gov/http://www.energy.ca.gov/


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inTroducTion2008 Title 24 Buildi g E erg E cie c St d rds 4About this Guide 5

Technology overviewCerti cation to the Energy Commission 8Two Key Strategies 9Luminaires 10Switching Controls 15Vacancy Sensors 16Dimmers 18Other Control Devices 20Purchase & Selection 21

lighTing deSign guide

Title 24, P rt 6 Changes 24Introduction to Lighting Design 26Kitchens 27Bathrooms, Garages, Closets, Laundry Rooms, & Utility Rooms 30Other Rooms 33Outdoor Lighting 37Multi- amily Common Areas 41Parking Lots & Garages 42

appendixCompliance Checklist 44

Glossary 49Resources & In ormation 53

TaBle of ConTenTs


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reSidenTial lighTing deSign guide 2008

2008 TiTlE 24, ParT 6

2


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3inTroducTion


InTroduCTIon

2008 T t e 24 B E e E f e St s 4

a t t s g 5


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4

The Cali ornia Energy Commission adopted the 2008 Title 24 Buildi g E erg E cie c St d rds on April 23, 2008, and the Building StandardsCommission approved them or publication on September 11, 2008.The 2008 Reside ti l C mpli ce M u l was adopted by the Energy

Commission on December 17, 2008. I an application or a building permit issubmitted on or a ter January 1, 2010, the 2008 standards must be met.

The Energy Commission adopted the changes to the 2008 standards or anumber o reasons:

To provide Cali ornia with an adequate, reasonably priced, and1.

environmentally sound supply o energy.

To respond to Assembly Bill 32, the Global Warming Solutions Act o 200 6,2.which mandates that Cali ornia reduce its greenhouse gas emissions to1990 levels by 2020.

To pursue Cali ornia energy policy that promotes energy e ciency as the3.resource o rst choice or meeting Cali ornias energy needs.

To act on the ndings o Cali ornias Integrated Energy Policy Report4.

that standards are the most cost-e ective means to achieve energye ciency. The 2008 Title 24 Buildi g E erg E cie c St d rds areexpected to continue to be upgraded over time to reduce electricity andpeak demand, while recognizing the role o the standards in reducingenergy related to meeting Cali ornias water needs and in reducinggreenhouse gas emissions.

To meet the West Coast Governors Global Warming Initiative commitment5.

to include aggressive energy-e ciency measures into updates o state

building codes.To meet the Executive Order in the Green Building Initiative to6.improve the energy e ciency o nonresidential buildings throughaggressive standards.

2008TITle 24 BuIldIngenergy effICIenCy sTandards


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5inTroducTion


aBouT ThIs guIdeThe Title 24 Reside ti l Lig ti g Desig Guide was sponsored by the Cali ornia Energy Commission and developed by the Cali ornia Lighting Technology Center at UC Davis .

This guide is intended to be used as a supplement or the 2008 Reside ti l C mpli ce M u l . It is a resource to help contractors, designers, andbuilders understand the 2008 Title 24 Buildi g E erg E cie c St d rds andhow to integrate these changes into new home plans. This guide consists otwo key sections: the Technology Overview and the Lighting Design Guide.

Technology overview

The Technology Overview describes the technologies that are essential orcompliance with 2008 Title 24, P rt 6 , as well as suggestions on how to usethem throughout a residential building. This section includes speci cations ormanu acturing Title 24, P rt 6 -compliant technologies.

lighTing deSign guide

The Lighting Design Guide demonstrates ways to meet the new coderequirement with high-e cacy lighting design plans or rooms speci ed inTitle 24, P rt 6 . It also indicates the lighting standards or each room and o ershelp ul tips and explanations or each lighting design depicted.

Note: T is uide is not intended to be used in lieu o t e Title 24, Part 6 code.Please visit . . . /t t 24to download the o cial 2008 Title 24Buildi g E erg E cie c St d rds as well as the Reside ti l C mpli ce M u l . To obtain a hard copy o the standards, contact the Cali ornia EnergyCommissions publications unit at (916) 654-5200.

clTc TiTlE 24, ParT 6 reSourceScltc.ucdavis.edu/title24
http://energy.ca.gov/http://energy.ca.gov/http://cltc.ucdavis.edu/http://cltc.ucdavis.edu/http://energy.ca.gov/title24http://cltc.ucdavis.edu/title24http://cltc.ucdavis.edu/title24http://cltc.ucdavis.edu/title24http://cltc.ucdavis.edu/title24http://cltc.ucdavis.edu/title24http://cltc.ucdavis.edu/title24http://energy.ca.gov/title24http://cltc.ucdavis.edu/http://cltc.ucdavis.edu/http://energy.ca.gov/http://energy.ca.gov/


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6


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Technology overview


7

TeChnology overvIew

c t f t t t e c ss

T k St t s 9

l s 10

S t c t s 15

v S s s 16

d s 18ot c t d s 20

p s & S t 21


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8

CerTIfICaTIon To Theenergy CoMMIssIonLight emitting diode (LED) luminaires must be certi ed by the manu acturer to theEnergy Commission to receive a high-e cacy classi cation. LED luminaires notcerti ed to the Energy Commission shall be classi ed as low e cacy. Lightingcontrols used to achieve Title 24, P rt 6 compliance also must be certi ed by the

manu acturer to the Energy Commission.

Finding a cerTiFied device

For a current list o lighting devices approved by the Energy Commission, visitthe online Appliance E ciency Database at . s. . ..This database is maintained by the Energy Commission and includes allappliances, devices, and controls that have been certi ed to the EnergyCommission. Appliances listed in the database either meet ederal e ciencystandards or, where there are no ederal e ciency standards, meet Cali orniasappliance e ciency standards.

cerTiFying a producT To The energy commiSSion

Manu acturers o devices regulated by Title 24, P rt 6 must certi y the devicesby completing the appropriate certi cation orms rom the Energy Commission.The orms or lighting devices regulated by Title 24, P rt 6 can be ound at

. . . / s/ t s / s_ st t s_ t/ t.

Residential lighting devices that must be certi ed to the Energy Commissioninclude ballasts or residential recessed luminaires, compact fuorescent lamps(CFLs), fuorescent lamp ballasts, high-e cacy LED luminaires, certain lightingcontrol devices, metal halide luminaires, and undercabinet luminaires.

applianceeFFiciency daTabaSewww.appliances.energy.ca.gov
http://www.appliances.energy.ca.gov/http://www.energy.ca.gov/appliances/database/forms_instructions_cert/lightinghttp://www.appliances.energy.ca.gov/http://www.appliances.energy.ca.gov/http://www.appliances.energy.ca.gov/http://www.appliances.energy.ca.gov/http://www.energy.ca.gov/appliances/database/forms_instructions_cert/lightinghttp://www.appliances.energy.ca.gov/http://energy.ca.gov/


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Technology overview


9

Two Key sTraTegIesA combination o energy-e cient luminaires and lighting controls allow buildersand designers to create building plans that comply with the 2008 Title 24Buildi g E erg E cie c St d rds :

high-eFFicacy luminarieS1.High-e cacy luminaires are designed and built to operate only energy-e cientlight sources, such as LED lighting systems, fuorescent T8 or T5 lamps,CFLs, and some high intensity discharge (HID) lamps. For residentialbuildings, the use o high-e cacy luminaires is pre erred over low-e cacyluminaires paired with lighting controls.

low-eFFicacy luminaireS2. + lighTing conTrolS

Low-e cacy luminaires are allowed throughout Title 24, P rt 6 i they arepaired with appropriate lighting controls. Among the most common lightingcontrols allowed in the code are vacancy sensors and dimmers.

Occupancy sensors, vacancy sensors, and motion sensors are devicesthat automatically switch the lights in response to the presence orabsence o motion in a space. Dimmer switches allow occupants tomanually lower the room lighting, and thus the power used, as desired.These controls are allowed as an alternative to high-e cacy luminaires orsome Title 24, P rt 6 applications.

This section will explain how these technologies work, what eatures to lookor when purchasing or speci ying them, and which applications are most

appropriate or each technology. A solid understanding o these technologies iskey to Title 24, P rt 6 -compliant lighting designs and speci cations.


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10

luminaireA luminaire is the lightingindustrys term or a light ixture. Aluminaire consists o the housing,lamp (light bulb), power supply(ballast or trans ormer), re lector,and, in some cases, a lens.

eFFicacyE icacy = ated lumens / ated wattsE icacy is a measure o howmuch light is produced by a lampor lighting system per unit oelectrical power consumed.

permanenTly inSTalled

luminaireSLighting attached to walls,

ceilings, and columns.Track and lexible lighting systems.

Lighting inside permanently

installed cabinets.Lighting attached to the top

or bottom o permanentlyinstalled cabinets.Lighting attached to ceiling ans.

Lighting integral to exhaust ans.

Lighting integral to garage door

openers i designed to be usedas general lighting, switchedindependently rom the door opener,

and does not automatically turn o .Permanently installed luminairesdo not include portable luminaires(table lamps and loor lamps), lightingin appliances, or lighting in garagedoor openers consisting o twoor ewer screw-base sockets.

luMInaIres

high-eFFicacy luminaireS

The Title 24, P rt 6 standards require all pe manently installed luminai es tobe high e cacy. A lamp or lighting system must meet e cacy requirements

listed in Table 1 and Table 2 to be classi ed as high e cacy. Additionally, LEDlighting source systems must be certi ed to the Energy Commission to beconsidered high e cacy. Luminaires that do not meet the requirements areconsidered low e cacy.

Table 1: high-eFFicacy non-led lampS

lamp power minimum lamp eFFicacy

5 W 30 lm / W

> 5 W 15 W 40 lm / W

> 15 W 40 W 50 lm / W

> 40 W 60 lm / W

Non-LED lamps include line-voltage incandescent, low-voltage incandescent,fuorescent, HID, and induction lamps. Ballast wattage is not included in thecalculation or lamp e cacy, with the exception o kitchen wattage calculations.The rated watts and lumens usually can be ound on the lamp packaging or inthe manu acturers catalog.

Table 2: high-eFFicacy led lighTing SySTemS

SySTem power minimum SySTem eFFicacy

5 W 30 lm / W

> 5 W 15 W 40 lm / W> 15 W 40 W 50 lm / W

> 40 W 60 lm / W

LED lighting systems include an LED light engine, heat sink, trans ormers, andpower supply devices, most o which consume power. The wattage or the entiresystem must be taken into account when calculating e cacy. Rated wattage orLED luminaires can be ound on the permanent actory-installed label.


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Technology overview


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low-eFFicacy luminaireS

Any luminaire that does not meet the e cacy standards in Tables 1 and 2 areconsidered low-e cacy luminaires. In addition, the ollowing conditions de nea low-e cacy luminaire:

Incandescent lighting, both low voltage and line voltage.1.

Fixtures that contain a medium screw-base socket or line-voltage socket2.or line-voltage lamp holder capable o accepting a low-e cacy lamp.

Track lighting or lighting systems allowing the addition or relocation o3.luminaires without altering the wiring o the system.

Lighting systems with modular components that allow conversion4.

between screw-base and pin-base sockets.

Electrical boxes where no electrical equipment has been installed, but5.

which can be used or a luminaire or sur ace-mounted ceiling an.

LED lighting not certi ed to the Energy Commission.6.

Low-e cacy luminaires may be used in conjunction with lighting controlsspeci ed or each residential space to comply with Title 24, P rt 6 .

Table 3: luminaire TypeS

high-eFFicacy luminaireS low-eFFicacy luminaireS

Luminaires generallyconsidered high e icacy:

Fluorescent lamps with1.electronic ballasts

High intensity2.discharge (HID)

Induction lighting3.

Certi ed LED systems4.

Certi ed LED trim5.

Certi ed hybrid LED6.

Certi ed GU-24 base7.

Luminaires generallyconsidered low e icacy:

Incandescent sockets1.

Screw-base CFL2.

Interchangeable3.screw-base / pin-base sockets

Uncerti ed LED4.

Uncerti ed GU-24 base5.

Mercury vapor (HID)6.

I c desce t = l w e c c

CaLI oRnIa LIGhTInG TEChnoLoGy CEnTER

Screw-b se C Ls = l w e c c


Screw-b se s cket = l w e c c



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12

led lighTing SySTemS

LED li tin systems are a new, high-e cacy option or Title 24, P rt 6 .To be considered a high-e cacy luminaire, an LED lighting system must meetthe e cacy requirements provided in Table 1 on page 10 , in addition to beingcerti ed to the Energy Commission. LED lighting systems that are not certi edto the Energy Commission are considered low-e cacy lighting.

led T c r tsAn LED t im is a one-piece integral unit containing the power supply,trans ormer, heat sink, and LED circuit board. To quali y an LED trim as highe cacy, the LED trim and housing must meet the ollowing conditions:

The trim must be certi ed to the Energy Commission according to the1.high-e cacy standards on page 10 .

The trim must be hardwired directly into the luminaire housing. Wiring2.may include any kind o midline connector between LED trim and wireends, but must not include a screw-base socket con guration.

The housing must not contain a screw-base socket.3.

No screw-base adaptors may be used.4.The screw-base attached to a pig tail must be cut o and discarded5.

be ore hardwiring.

h led l

A yb id LED luminai e is a complete lighting unit consisting o an LED lightingsystem and another type o light source (incandescent or fuorescent).

For a hybrid LED luminaire to quali y as high e cacy, the LED lighting systemmust be high e cacy and be certi ed to the Energy Commission, and the othernon-LED light source also must be high e cacy.

I a high-e cacy LED lighting system is combined with a low-e cacy lightingsystem, the two must be considered separate in residential applications.

LED trim d usi g

a ig -e c c brid LED lumi ire

CooPER LIGhTInG


led liFe SpanLED li e span is signi icantly longerthan other light sources withan average o 25,000 50,000hours, thus requiring lessmaintenance or the luminaire.
http://www.haloltg.com/http://www.haloltg.com/


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Technology overview


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elecTronic ballaSTS

Electronic ballasts are commonly used with fuorescent, HID, and inductionluminaires. Title 24, P rt 6 speci es that ballasts or fuorescent lamps rated13 W or higher must be electronic (not magnetic) and must have an output

requency o no less than 20 kHz.

gu-24 baSe and SockeT

The GU-24 base is a newly developed line- olta e lamp holder and socketcon guration. Typically, a luminaire with a line-voltage socket is classi edas a low-e cacy luminaire. GU-24 bases and sockets are the only type oline-voltage socket and holder that may be classi ed as high e cacy.

gu-24 c r ts

The GU-24 luminaire is rated or use only with high-e cacy lamps or1.

certi ed LED lighting systems.

The luminaire is not a recessed downlight to be used with a CFL.2.

The luminaire does not contain any other type o line-voltage socket or3.lamp holder.

The manu acturer does not make adaptors or modular components to4.convert the GU-24 socket to any other type o socket or lamp holder.

nighT-lighTS and lighTing inTegral To exhauST FanS

Permanently installed night-lights, night-lights integral to permanently installedluminaires, and lighting integral to exhaust ans must meet either o the

ollowing conditions:

Must contain only one high-e cacy lamp, and must not contain a1.

line-voltage socket or lamp holder.

Must be rated to consume no more than 5 W, and must not contain a2.

medium screw-base socket.

The lighting that is integral to exhaust ans must be controlled separately romthe exhaust an.

line-volTage SockeTSLine-voltage sockets pair with a varietyo screw, pin, and bayonet bases (alsocalled holders). Line-voltage socketsdo not include a trans ormer, ballast,or power supply between the wiresconnected to the luminaire and thesocket. GU-24 line voltage luminaires

are the only type o line-voltageluminaire that may be classi ied ashigh e icacy under Title 24, P rt 6 .

GU-24 b se C L


C L wit det c ble GU-24 b se



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Technology overview


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swITChIng ConTrolsSwitching controls, also called lighting controls, are an important component oTitle 24, P rt 6 . A combination o low-e cacy luminaires and speci c lightingcontrols can be used as an alternative to high-e cacy luminaires.

These switching devices and controls include occupancy / vacancy sensorsand dimmers as well as Energy Management Control Systems that overseethe control unctions. All sensors and dimmers must be certi ed to the EnergyCommission or compliance with Title 24, P rt 6 .

SwiTching conTrol requiremenTS

Title 24, P rt 6 speci es the ollowing requirements or switching controls usedwith permanently installed luminaires:

S t s t :1. All high-e cacy luminaires must be switchedseparately rom low-e cacy luminaires.

r ss t s:2. All luminaires must be switched with

readily accessible manual on / o controls.

m t s st t s:3. All lighting controls must be installed inaccordance with the manu acturers instructions.

m t s t s:4. Lighting circuits controlled by more than one switch,where a certi ed dimmer or vacancy sensor has been installed, must nothave controls that bypass the dimmer or vacancy sensor unction.

l t ss t t st s:5. Must be either: switched separatelyrom the exhaust an, OR i the lighting is integral to the an, it must be

capable o being manually turned on / o while allowing the an to continueoperation or an extended period o time.

i t ts:6. Indicator lights integral to lighting control devices mustconsume no more than 1 W per indicator light.

Multiple switc es di gr m s wi g wiri g si gle switc (t p)

d 3-w switc (b tt m).

21

34

Single Pole1. Line (Hot)2. Neutral3. Ground

4. Load

21

345

3-Way1. Line or Load2. Neutral3. Ground4. First Traveler (note color)5. Second Traveler (note color)

LEvITon


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vaCanCy sensorsVacancy sensors are manual-on / automatic-o occupant sensors thatautomatically turn lights o a ter a room is unoccupied or a period o time,but must be turned on manually. Vacancy sensors used in a building must becerti ed to the Energy Commission to be Title 24, P rt 6 -compliant.

applicaTionS

Vacancy sensors may be used as an alternative to high-e cacy luminaires in allapplications throughout the house, with the exception o kitchens, which haveadditional requirements.

vacancy SenSor compliance SpeciFicaTionS

Vacancy sensors must meet the ollowing requirements to be certi ed to theEnergy Commission:

a t t - :1. Must be capable o automatically turning o the lights

within 30 minutes a ter the room has been vacated.m - :2. Must allow the occupant to turn the lights on / o manually.

v s st t s s :3. Must have a status signal that indicates i the deviceis operating properly or has mal unctioned or ailed. The visible signal mayhave an override switch that turns o the signal.

a t t - :4. Must not turn on the lighting automatically;however, the sensor must have a grace period o 15 30 seconds to turnthe lighting on automatically a ter the sensor has timed out.

n s :5. Must not have an override switch to disable thevacancy sensor.

n t t - :6. Must not have an override switch that convertsthe sensor to an automatic-on system.

vacancy SenSor:A vacancy sensor is an occupantsensor or which the lights mustbe turned on manually, and thesensor automatically turns lights

o within 30 minutes a ter an areais vacated. Also re erred to as amanual-on occupant sensor.

W ttSt pper CS-50 P ssi e I r red (PIR) W ll Switc v c c Se s r pr ides

ut m tic s ut .


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W ttSt pper RD-250 PIR Dimmi g Multi-w C ertible occup c Se s r

dIMMers

applicaTionS

Dimmers may only be used as an alternative to high-e cacy luminaires orvacancy sensors in bedrooms, hallways, dining rooms, amily rooms, home

o ces, and attics. In Title 24, P rt 6 , these are classi ed as other rooms.

dimmer compliance SpeciFicaTionS

Dimmers must meet the ollowing requirements to be certi ed to theEnergy Commission:

65% t :1. Must reduce power consumption by at least 65%at its lowest light level.

e t t ts t s:2. Must provide electrical outputs to lamps icontrolling an incandescent or fuorescent lamp to reduce visual fickerthrough the dimming range.

ul- t:3. Must be listed as compliant with the UL Standards by arating lab recognized by the International Code Council.

m t - ts t - s t s:4. Wall bo dimme sdesigned or a system with three or more circuits with non-dimmableswitches must not allow the switches to override the dimmer level.The dimmer and all switches in the circuit must be able to turn the lightingon / o . When turning on, the dimmer and all switches must return thelighting to the level set by the dimmer when last turned o . The dimmermay be controlled by an emergency override system.

o s t :5. I the device is a stepped dimme , it must include an oposition to turn the lights completely o .

Lutr Di dimmer switc wit l rge p ddle switc d sm ll slider t ll w lig t t be tur ed d t desired lig t le el

Le it Dec r Dimm ble C L d I c desce t Sureslide Dimmer

il ble i si gle p le d 3-w

oTher roomSOther rooms include any room or areathat is not a kitchen, bathroom, garage,closet larger t han 70 t 2, laundry room,or utility room (e.g., hallway, diningroom, amily room, home o ice,bedroom, attic space, wine cellar).
http://www.wattstopper.com/products/details.html?id=308http://www.wattstopper.com/products/details.html?id=308http://www.lutron.com/Products/StandAloneControls/Dimmers-Switches/DivaDimmerSwitch/Pages/Overview.aspxhttp://www.lutron.com/Products/StandAloneControls/Dimmers-Switches/DivaDimmerSwitch/Pages/Overview.aspxhttp://www.lutron.com/Products/StandAloneControls/Dimmers-Switches/DivaDimmerSwitch/Pages/Overview.aspxhttp://www.leviton.com/OA_HTML/ibeCCtpItmDspRte.jsp?item=577336&section=10856&minisite=10026http://www.leviton.com/OA_HTML/ibeCCtpItmDspRte.jsp?item=577336&section=10856&minisite=10026http://www.leviton.com/OA_HTML/ibeCCtpItmDspRte.jsp?item=577336&section=10856&minisite=10026http://www.leviton.com/OA_HTML/ibeCCtpItmDspRte.jsp?item=577336&section=10856&minisite=10026http://www.lutron.com/Products/StandAloneControls/Dimmers-Switches/DivaDimmerSwitch/Pages/Overview.aspxhttp://www.wattstopper.com/products/details.html?id=308


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Technology overview


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W ttSt pper WD dimmers w rk witfu resce t xtures usi g b ll sts witli e lt ge p se c tr l i put r ad ce M rk X electr ic dimm ble b ll sts.

mulTi-way dimming circuiTS

Multi-way dimming controls are three-way, our-way, and other multiplelocation dimming circuit combinations where a single multi-way dimmer maybe combined with other multi-way dimmers or multi-way toggle switches.Regular toggle switches may be combined with dimmers provided that thetoggle switches do not override the dimmer control.

dimmer uSage recommendaTionS

S s:Use a multi-way toggle switch with a multi-way dimmer.

l s, s, st s:Use multi-way dimmers throughoutthe space so that lights can be dimmed rom all locations.

l t :Failure to correctly match the dimmer with the electricallighting load may result in early equipment ailure.

F s t s:Dimmers may be used with fuorescent lamps.However, many fuorescent lamps cannot be properly dimmed with thetypical wallbox devices used with incandescent lamps. A special controland dimming ballast must be used. CFLs o ten cannot be dimmed at all;

check the packaging to see i they are dimmable.

TypeS oF incandeScenT dimmerS

l t (120 t):Line voltage incandescent lamps are easily dimmedover their ull range o output with voltage control or phase control(electronic) dimmers. Tungsten-halogen lamps can be dimmed withconventional incandescent dimmers.

l - t t t t s s: Magnetic trans ormers step down120 V AC line voltage to 12 V AC or 24 V AC. Magnetic trans ormers usecopper wound around a steel core, storing energy in the orm o a magnetic

eld. Magnetic trans ormers are relatively large and o ten heavy.

l - t t t t s s: Electronic trans ormers alsostep down 120 V AC line voltage to 12 V AC or 24 V AC. This is done withelectronic circuitry, which stores an electric charge. Electronic trans ormersare compact and lightweight.

T pic l wiri g r dimmer wit m g etic tr s rmer (t p) d electr ic tr s rmer (b tt m)

120V

60Hz

BLACK

LAMPS

NEUTRAL

BLACK OR RED

LOW-VOLTAGEDIMMER

MAGNETICTRANSFORMER

HOT

120V

60Hz

LAMPS

NEUTRAL

WHITEELECTRONIC

TRANSFORMER

BLACK YELLOWHOT

ELECTRONIC LOW-VOLTAGE DIMMER

ELECTRONIC

MAGNETIC

LUTRon
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W ttSt pper LMIo-301 p t cell i put m dule r Digit l Lig ti g M geme t (DLM) s stem. M be used t c tr l i teri r d exteri r lig ti g.

oTher ConTrol devICes

energy managemenT conTrol SySTemS

An Ene y Mana ement Cont ol System (EMCS) is a computerizedcontrol system designed to regulate the energy consumption o a building by

controlling the operation o energy-consuming systems, such as lighting.

phoToconTrol

A p otocont ol is a device that switches or controls lighting loads based onambient light levels.

aSTronomical Time clock

Automatic time-switch control devices such as an ast onomical time clock are capable o automatically switching or controlling lighting loads based ontime schedules. According to the 2008 Title 24 Buildi g E erg E cie c St d rds , outdoor astronomical time-switch controls must:

Contain at least two separately programmable steps per unction area.1.

Have the ability to independently o set the on / o times or each channel2.by 0 99 minutes be ore or a ter sunrise or sunset.

Have sunrise and sunset prediction accuracy within3. + /- 15 minutes, andtimekeeping accuracy within ve minutes per year.

Display date, time, sunrise, and sunset.4.

Have an automatic adjustment or daylight saving time.5.

Include the option to program di erent schedules or weekdays6.and weekends.

Have program backups to prevent loss o schedules or at least seven7.

days, and time and date or at least 72 hours i power is interrupted.

Store astronomical time parameters (used to develop longitude, latitude,8.

time zone) or at least seven days i power is interrupted.Le it vizi + 24- ur Timer wit str mic l cl ck, timer setti gs, d gree LED l c t r
http://www.wattstopper.com/products/details.html?id=345http://www.wattstopper.com/products/details.html?id=345http://www.wattstopper.com/products/details.html?id=345http://www.wattstopper.com/products/details.html?id=345http://www.leviton.com/OA_HTML/ibeCCtpSctDspRte.jsp?section=17138&minisite=10022http://www.leviton.com/OA_HTML/ibeCCtpSctDspRte.jsp?section=17138&minisite=10022http://www.leviton.com/OA_HTML/ibeCCtpSctDspRte.jsp?section=17138&minisite=10022http://www.wattstopper.com/products/details.html?id=345


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Technology overview


21

EnERGy STaR L bel

purChase & seleCTIon

FixTure labelS For compliance and qualiTy

The ollowing labels may be help ul in speci ying high-quality and compliantxtures. However, not every compliant product is identi ed by a label.

It is important to ensure that controls used with low-e cacy lighting andhigh-e cacy LED luminaires are certi ed to the Energy Commission; checkthe Appliance E ciency Database or compliance. All other luminaires used ashigh-e cacy lighting must meet the e cacy requirements provided in Table 1.

energy STar l

The ENERGY STAR label guarantees a minimum standard o quality as wellas energy per ormance. Many ENERGY STAR brand products will meetTitle 24, P rt 6 code; however, not all products are guaranteed to be Title 24,P rt 6 -compliant. ENERGY STAR is a national brand, and Title 24 is aCali ornia regulation.

a t t F t l

Title 24, P rt 6 requires that recessed xtures installed in an insulated ceilingbe certi ed airtight in accordance with ASTM E283. I the xture label doesnot speci y ASTM E283 certi cation, additional documentation will be requiredto indicate the xture has been tested and certi ed in accordance withASTM E283. For complete airtight compliance, the installation also must beairtight with respect to the seal between the ceiling and xture. This can beaccomplished with either sealed gasket(s) or caulking. For more in ormation,see the Reside ti l C mpli ce M u l , Chapter 6.10.

aIR-TIGhT L bel
http://www.energystar.gov/http://www.energystar.gov/


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22


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23lighTing deSign guide


lIghTIng desIgn guIde

T t e 24, P t 6 c s 24

i t t t l t d s 2

k t s 27

b t s, g s, l r s, & ut t r s 30

ot r s 33

o t l t 37m t - c a s 41

p l ts & g s 42


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24

TITle 24, parT 6 ChangeskiTchen baThroomS, garageS, cloSeTS,

laundry roomS, & uTiliTy roomSoTher inTerior roomS

2 0 0 8

At least 50% o lighting watts mustbe rom high-e cacy luminaires.

Low-E cacyT ade-o Option

Under certain circumstances,i installed low-e cacy lightingwattage in a kitchen is less thanthe installed high-e cacy wattagein the kitchen, the ollowingadditional low-e cacy wattagemay be installed. See page 27 .

Size o Unit Additional low-e cacywatta e in kitc en

2,500 t 2 Up to 50 additional watts

> 2,500 t 2 Up to 100 additional watts

All li tin must be high e cacy.

Or

Low-e cacy lighting controlledby a acancy senso .


Or

Low-e cacy lighting controlledby a acancy senso .

OrLow-e cacy lighting controlledby a dimme switc .

2 0 0 5

High e cacy.

OR

Up to 50% o the total wattage can below e cacy.

All high-e cacy and low-e cacy lightingmust be controlled separately.

High e cacy.

OR

Manual-on occupancy sensor.

High e cacy.

OR

Manual-on occupancy sensor.

OR

Dimmer.

2 0 0 1

High e cacy.

AND

Controlled by the primary switch at thekitchen entrance.

Additional luminaires used or decorativee ects need not meetthis requirement.

Each bathroom containing a showeror bathtub must have at least onefuorescent luminaire.

OR

Fluorescent lighting may be installed ina utility room, laundry room, or garageinstead o a bathroom.

AND

All other lighting must be fuorescent orequipped with a motion sensor.

I using the alternative option, eachadditional bathroom must have at leastone fuorescent luminaire.

No requirements.


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25lighTing deSign guide


ouTdoor lighTing common areaS oFmulTi-Family buildingS

parking loTSand garageS


Or

Low-e cacy lighting controlledby a manual on / o switc AND a motion senso AND one ot e ollowin t ee met ods toautomatically turn lights o duringdaytime, without an override or bypassswitch:

Inte al P otocont ol1.

Ast onomical Time Clock2.

Ene y Mana ement Cont ol3.System


Or

Low-e cacy lighting controlledby occupancy senso s .

Pa kin lots and ca po ts or sevenor ewer cars must meet Title 24,Part 6 Outdoo residential Li tinStanda ds .

Pa kin a a es , either attachedor detached rom the dwelling unit,

or seven or ewer cars per sitemust meet Title 24, Part 6 Indooresidential Li tin Standa ds .

Pa kin lots and a a es or eightor more vehicles per site mustmeet Title 24, Part 6 OutdooNon esidential Li tin Standa ds .

High e cacy.

OR

Controlled by motion sensor andintegral photocontrol.

High e cacy.

OR

Occupancy sensor.

Must meet Title 24, P rt 6 NonresidentialLighting Standards.

No requirements. No requirements. No requirements.


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26

InTroduCTIon TolIghTIng desIgnIn the Lighting Design section, each space regulated by the 2008 Title 24Buildi g E erg E cie c St d rds is eatured along with correspondinglighting standards, de nitions o spaces, lighting plans, lighting legends, anddesign tips.

lighTing planS

The luminaires, lamps, and controls used in these lighting plans quali y ashigh e cacy, and many o the technologies can be ound in the EnergyCommissions Appliance E ciency Database. Most o the plans included in thissection use high-e cacy lighting that not only meets the code, but exceedscode requirements.

lighTing legendS

Each plan is accompanied by a lighting legend, which includes descriptionso luminaires and lamps used in each plan, lamp wattage, and lamp e cacy.All high-e cacy lighting symbols are marked either by an L or LED lightingor an FL or fuorescent lighting. R e er to Tables 1 and 2 on page 10 or therequirements or a luminaire or lamp to be considered high e cacy.

lighTing TipS

Each plan includes extra considerations to take into account when designinglighting or each space. Also included are recommendations or added energysavings, beyond the 2008 Title 24 Buildi g E erg E cie c St d rds .

Note: Watta e only matte s in kitc ens. Ballast wattage is included ine cacy calculations or kitchens, but not or other rooms.

applianceeFFiciency daTabaSewww.appliances.energy.ca.gov
http://www.appliances.energy.ca.gov/http://www.appliances.energy.ca.gov/http://www.appliances.energy.ca.gov/http://www.appliances.energy.ca.gov/


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lIghTIng desIgn guIde | kiTchenS


27

kiTchen:A room or area used or ood storageand preparation, and washing dishes.

Includes associated countertops

and cabinets, re rigerator,stove, oven, and loor areas.Includes dining and nook areas

i they use the same switchesas the kitchen lighting.Does not include lighting internal

to cabinets that illuminate onlythe inside o the cabinet.

calculaTion exampleA contractor plans to install six 26 WCFL downlights and our linear

luorescent undercabinet luminaireswith electronic ballasts that are ratedby the ballast manu acturer as 25 W.

How many watts o low-e icacylighting can be installed?

26 6 = 156 W25 4 = 100 WTotal = 256 WThe maximum watts o low-e icacylighting that can be inst alled is 256 W.

A 1,700 t 2 house meeting theconditions or the low-e icacy trade-ooption would be allowed an additional50 W o low-e icacy lighting, or a totalo 306 W o low-e icacy lighting.

KITChensLIghTINg STANDArDS

At least 50% o lighting watts must be rom high-e cacy luminaires.

Low-E cacy T ade-o Option

Additional low-e cacy wattage may be installed under theollowing conditions:

All permanently installed luminaires in garages, closets greater1.than 70 t 2, laundry rooms, and utility rooms must be highe cacy AND controlled by a vacancy sensor.

All low-e cacy lighting in the kitchen must be controlled by2.

a manual-on / automatic-o occupancy sensor, a dimmer,an EMCS, or a multi-scene programmable control system.

Size o Unit Additional low-e cacy wat ta e in kitc en

2,500 t 2 Up to 50 additional watts

> 2,500 t 2 Up to 100 additional watts

kiTchen lighTing TipS

When calculating the wattage ratio o high-e cacy luminaires to

low-e cacy luminaires or a kitchen, determine the rated input watts o thelighting system, including any additional wattage used by the ballasts.

LED luminaires that have not been certi ed to the Energy Commission

as high e cacy shall be classi ed as low-e cacy lighting. The installedLED system wattage must include trans ormers, power supplies, and anyother power-consuming components.

SaGE aRChITECTURE InC. DavE aDaMS PhoToGRaPhy
http://www.sagearchitecture.com/projects/breezeway/index.jsphttp://www.sagearchitecture.com/projects/breezeway/index.jsphttp://www.sagearchitecture.com/projects/breezeway/index.jsp


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28

StanDarD KitChen lighting plan148 square eet

kiTchen lighTing TipSLight the countertops more1.than the walkway.

Provide lighting where it will2.support speci ic tasks and

overall unction o the space.

Provide a recessed can above3.the sink on a separate switch.

Supplement recessed can lighting4.with high-e icacy undercabinetlight ixtures on separate switches.

The Illuminating Engineering5.Society recommends kitchendesigns to achieve at least30 ootcandles on most kitchencounters and work sur aces.

ref. DW

S D S

S

l l ll

l

l

llll

l l

l

ll

STANDArD KITChEN LIghTINg FIxTUrE LEgEND

Symbol Desc iption Lamp Type Qty. Watts TotalWattsE cacy(lm / W)

l Recessed downlight GU-24 base LED 5 12 60 56

l 1-lightundercabinet xture LED * 3 4 12 32

l 3-lightundercabinet xture LED * 7 9 63 40

S SwitchSD Dimmer switch

LED watts: 135 At least 50% i -e cacy watts? Yes

* Note: To be Title 24, P rt 6 -compliant, the LED luminaires (or at least hal the wattageused by the LED luminaires) would need to be certi ed to the Energy Commission.


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30

baThroomA room or area containing asink used or personal hygiene,toilet, shower, or tub.

garageA non-habitable building or portion oa building, attached to or detached

rom a residential dwelling unit, inwhich motor vehicles are parked.

cloSeTA non-habitable room used tostore linens, household supplies,clothing, non-perishable ood, orsimilar uses, which is not a hallwayor passageway. Title 24, P rt 6 onlyapplies to closets larger t han 70 t 2.

laundry roomA non-habitable room or spacethat contains plumbing andelectrical connections or a washingmachine and / or clothes dryer.

uTiliTy roomA non-habitable room or buildingthat contains only HVAC, plumbing,or electrical controls or equipment,and which is not a bathroom,closet, garage, or laundry room.

BaThrooMs,garages, CloseTs,laundry rooMs, &

uTIlITy rooMsLIghTINg STANDArDS


Or low-e cacy lighting controlled by a acancy senso .

baThroom lighTing TipS

I a sink used or personal hygiene is in a room other than a bathroom

and includes lighting switched separately rom the room area lighting,only the sink area luminaire(s) must comply with Title 24, P rt 6 BathroomLighting Standards.

More than one luminaire may be attached to the same vacancy sensor.

Regarding bathroom vacancy sensors, at least one high-e cacy luminaire

not controlled by a sensor is recommended to ensure that one luminaireremains on when little movement is detected (e.g., someone taking a bath).

garage lighTing TipS

Garage work areas normally arthest rom the door to the house can be

switched separately rom the rest o the space with high- e cacy luminairesor task lighting.

cloSeT lighTing TipS

Closets less than 70 t 2 are exempt rom Title 24, P rt 6 requirements.

Hallways with storage shelves are considered hallways and must comply

with Title 24, P rt 6 Other Rooms Residential Lighting Standards .


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lIghTIng desIgn guIde | baThroomS, garageS, cloSeTS, laundry roomS, & uTiliTy roomS


31

high-eFFicacy and vacancy SenSor opTion ForaddiTional low-eFFicacy kiTchen lighTing

Additional low-e cacy lighting may be used in the kitchen i both high-e cacylighting and vacancy sensors are included in the garage, closets larger than 70 t 2,laundry room, and utility rooms. Although not required, high-e cacy luminairesmay be used with vacancy sensors to achieve the lowest possible energy use.

StanDarD bathrooM lighting plan45 square eet

S S

l

fl

baThroom lighTing TipSUse a decorative CFL bath1.bar ixture over the mirror.

Provide separate switches2.or versatility in the

lighting environment.

Vacancy sensors and dimmers3.will allow or maximumenergy saving potential.

STANDArD BAThrOOM LIghTINg FIxTUrE LEgEND

Symbol Desc iption Lamp Type Qty. Watts TotalWatts E cacy


fl 3-light bath barPin-base or GU-24base CFLs withelectronic ballasts

3 13 39 69

S Switch


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32

l

S

S

S

S v S

SD

WalK-in CloSet

l

l

fl

l

fl fl

MaSter bathrooM lighting plan228 square eet

baThroom lighTing TipSUse luorescent sur ace-mounted1.

ixtures in closets to provide aneven spread o light on shelvingand throughout space.

Using multiple ixture2.types on separate switchesprovides a speci ic sourceo light or each unction inthe space and versatility inthe lighting environment.

Use a decorative CFL bath3.bar ixture over the mirror.

MASTEr BAThrOOM LIghTINg FIxTUrE LEgEND



fl 5-light bath barPin-base or GU-24base CFLs withelectronic ballasts

5 13 65 69

fl Sur ace-mountedxture

Pin-base or GU-24base CFLs withelectronic ballasts

2 13 26 69

S Switch

SD Dimmer switch

SvS Vacancy sensor switch


35/56

lIghTIng desIgn guIde | oTher roomS


33

oTher roomSOther rooms include any room or areathat is not a kitchen, bathroom, garage,closet larger than 70 t 2, laundry room,

or utility room (e.g., hallway, diningroom, amily room, home o ice,bedroom, attic space, wine cellar).

oTher rooMsLIghTINg STANDArDS


Or low-e cacy lighting controlled by a acancy senso .

Or low-e cacy lighting controlled by a dimme switc .

oTher roomS lighTing TipS

Use several luminaires throughout a room to allow variations o light and

reduced shadows, minimizing the need or residents to add portable lightingto the room.

Provide separate switches or each luminaire to allow residents control over

the appearance o their rooms while also reducing energy use.Concealed lighting such as linear fuorescent or LED cove lighting can

increase the marketability o a residence.

Lights attached to a vacancy sensor may turn o prematurely when people

are still in the room but not enough motion is seen by the sensor. An optionto address this issue is to install a high-e cacy luminaire, which can becontrolled by a manual on / o switch.

Detached residential storage buildings less than 1,000 t 2 are exempt romTitle 24, P rt 6 .


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34

S S

S S

S

S D 3

S S D 3

K i t C h e n

foyer

ll

fl

l

l

fl

l

l l

fl fl flfl

fl

fl

l S D

living rooM & Dining rooM289 square eet

LIvINg rOOM AND DININg rOOM LIghTINg FIxTUrE LEgEND


fl Wall sconcePin-base or GU-24base CFLs withelectronic ballast

6 13 78 69

fl

Ceiling an with lampand an motor onseparate switches

Pin-base or GU-24 baseCFLs with dimmingelectronic ballast

1 26 26 60

fl

Pendant ondimmer switch


1 13 13 69

lRecessed wallwasher GU-24 base LED 7 12 84 56


S Switch

SD Dimmer switch

SD3 3-way dimmer switch


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36

S D

S D

S D

S

l

fl

l

beDrooM lighting plan144 square eet

bedroom lighTing TipSUse high-e icacy luorescent1.

ixtures with one or moreon / o switches.

When using ceiling ans with2.

luorescent light kits, provideone on / o switch or the anand one on / o switch or thelight. A dimmer switch is shownin this example or versatilityin the lighting environment.

Use separate switches or the3.LED sconces to accommodatemultiple occupants.

BEDrOOM LIghTINg FIxTUrE LEgEND


l Wall sconce Dimmable LED lamp 2 8 16 54

fl

Ceiling an with lampand an motor onseparate switches


1 26 26 60

SD Dimmer switch


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lIghTIng desIgn guIde | ouTdoor lighTing


37

ouTdoor lighTingPermanently installed luminairesattached to a residential building thatprovide lighting or private patios,

entrances, balconies, and porches.

ouTdoor lIghTIngLIghTINg STANDArDS


Or low-e cacy lighting controlled by a manual on / o switcAND a motion senso AND one o the ollowing three devices toautomatically turn lights o during daytime:

P otocont ol1. without an override or bypass switch.

Ast onomical Time Clock2. without an override orbypass switch.

Ene y Mana ement Cont ol System (EMCS)3.without an override or bypass switch that would allowthe luminaire to always be on.

Temporary override oF moTion SenSor opTion

For occasions that require residential outdoor lighting to be on or more than30 minutes a ter the sensor has stopped sensing activities, low-e cacy outdoorluminaires controlled by a motion sensor may have a temporar y override switchto bypass the motion-sensing unction. The motion sensor must be automaticallyreactivated within six hours.

addreSS SignS

Internally illuminated address signs must:

Comply with the1. Title 24, P rt 6 Sign Standards, Or

Not contain a screw- base socket, and consume no more than 5 W.2.


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38

ouTdoor lighTing TipS

CFLs used in spaces with very hot or very cold temperatures should be

speci ed accordingly. Amalgam CFLs per orm better at both very high andvery low temperatures than non-amalgam versions, so are appropriate oroutdoor lighting, although they can take a ew minutes to reach ull output.An incandescent source may be used as a low-e cacy alternative or thesetemperatures, or an LED source as a high-e cacy alternative to CFLs incold temperatures.

Control devices must have an indicator that visibly or audibly in orms the user

that the controls are operating correctly, or have ailed or mal unctioned.

Decorative landscape lighting not permanently attached to residential

buildings is not regulated by Title 24, P rt 6 .

Although not required by Title 24, P rt 6 , a time clock or photocontrol onoutdoor lighting not permanently attached to a residential building, such aslandscape lighting, can help save energy by automatically turning lights oduring the day.

Permanently installed luminaires in or around swimming pools, spas,

hot tubs, or ountains subject to Article 680 o the Cali ornia Electrical Codedo not need to be high e cacy.

SaGE aRChITECTURE InC. DavE aDaMS PhoToGRaPhy
http://www.sagearchitecture.com/projects/spa/index.jsphttp://www.sagearchitecture.com/projects/spa/index.jsphttp://www.sagearchitecture.com/projects/spa/index.jsp


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lIghTIng desIgn guIde | ouTdoor lighTing


39

l

l S

front porCh lighting plan

FronT porch lighTing TipSLEDs are ideal or colder1.outdoor environments, asCFLs o ten are not compatiblewith lower temperatures.

Including a motion sensor2.will provide light to occupantsupon entering the spacewhen no immediate accessto a switch is available.

For outdoor areas near3.bedroom windows, high-e icacyluminaires are pre erred overlow-e icacy luminaires withmotion sensors that maybe triggered at night.

Using an Astronomical Time4.Switch to control outdoorlights will ensure that lights

are on when desired or sa etyand security reasons, butare not le t on all night.

FrONT POrCh LIghTINg FIxTUrE LEgEND

Symbol Desc iption Lamp Type Qty. WattsTotalWatts

E cacy(lm / W)

lExterior wall sconce LED 2 5 10 35

S Switch


42/56


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lIghTIng desIgn guIde | mulTiFamily common areaS


41

MulTI-faMIly CoMMon areasLIghTINg STANDArDS


Or low-e cacy lighting controlled by occupant senso s .

mulTi-Family common area lighTing TipS

For common areas accommodating elderly or visually impaired residents,

the quality o light must be particularly high to allow them to nd their waysa ely through spaces that contain unexpected obstacles.

Staircases and stairwells are best lit with directional light rom above to

maximize contrast between treads and risers. CFL luminaires with refectors

are a high-e cacy way to provide this lighting.Fixture integrated sensors can maximize energy savings, ensuring lights are

o when the space is vacant and o ering high / low options when the spaceis occupied.

low-riSereSidenTial buildingLow-rise buildings consist o three or

ewer habitable stories. Residential

buildings with more than threehabitable stories are consideredhigh-rise buildings and must ollowthe Title 24, P rt 6 High-RiseResidential Lighting Standards.

mulTi-Family buildingA multi- amily building consists o

our or more dwelling units thatshare common walls, and also mayshare common loors or ceilings.Multi- amily buildings includeapartments and dormitories.

common areaSCommon areas include interiorhallways, pool houses, readingrooms, and laundry rooms.


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42

parKIng loTs & garagesLIghTINg STANDArDS

Pa kin lots and ca po ts or seven or ewer cars per site must

meet Title 24, Part 6 Outdoo residential Li tin Standa ds .

Pa kin a a es , either attached or detached rom thedwelling unit, or seven or ewer cars per site must meetTitle 24, Part 6 Indoo residential Li tin Standa ds .

Pa kin lots and a a es or eight or more vehicles per site mustmeet Title 24, Part 6 Outdoo Non esidential Li tin Standa ds .

parking loT lighTing TipS

Residential parking lots should be lit uni ormly to provide a sense o sa ety.

Lighting should ll in shadows and dark corners. Two or more less power ulluminaires in di erent places are pre erable to a single luminaire.

Fixture integrated sensors can maximize energy savings, ensuring lights are

o when the space is unoccupied and o ering high / low options when thespace is occupied.

reSidenTial parkingloTS & garageSA parking garage is a covered buildingor structure or the purpose o parking

vehicles, and consists o at least a rooover the parking area enclosed withwalls on all sides. Parking garagesmay have ences, rails, partial walls,or other barriers in place o one ormore walls. I the roo o a park ingstructure also is used or parking,the section without an overheadroo is considered a parking lot.



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44

CoMplIanCe CheCKlIsT

o De ices andComponents

Ce ti ed to t eCali o nia Ene y

Commission

Any o t e ollowin installed de ices and componentsmust a e been ce ti ed to t e Ene y Commission:

LED lighting systems classi ed as high e cacy, ballasts used in

recessed luminaires, vacancy sensors, dimmers, track lighting,integral current limiters, and outdoor motion sensors.

o y s o n/a

o Li tin Cont ols Low-e cacy, i -e cacy sepa ate switc inAll permanently installed low-e cacy luminaires arecontrolled by switches separate rom those controllinghigh-e cacy luminaires.

o y s o n/a

E aust ans wit inte al li tin systemsExhaust ans with integral lighting systems must be switchedseparately rom lighting systems Or have a lighting system thatcan be manually turned on / o while allowing the an to continueoperation or an extended period o time.

o y s o n/a

readily accessible manual cont olsAll permanently installed luminaires are switched with readilyaccessible controls that permit the luminaires to be manuallyswitched on and o .

o y s o n/a

Manu actu e s inst uctionsAll lighting controls must be installed in accordance with

the manu acturers instructions.

o y s o n/a

No bypassin cont olsNo controls may bypass a dimmer or vacancy sensor unction

or all lighting circuits controlled by more than one switch with adimmer or vacancy sensor installed.

o y s o n/a


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appendIx | compliance checkliST


45

o Luminai es hi e cacy s. low e cacyHigh-e cacy and low-e cacy luminaire classi cation has beendetermined or each luminaire.

o y s o n/a

Elect onic ballasts o fuo escent lamps 13 W o eateFluorescent lamps rated 13 W or greater must use electronicballasts with an output requency o no less than 20 kHz.

o y s o n/a

Ni t-li ts and li tin inte al to e aust ansPermanently installed night-lights and night-lights integral topermanently installed luminaires or exhaust ans must containonly high-e cacy lamps, and must not contain a line-voltagesocket or line-voltage lamp holder, Or the night-light must berated to consume no more than 5 W and must not contain amedium screw-base socket.

Lighting integral to exhaust ans must be controlled separatelyrom the exhaust ans.

o y s o n/a

Elect ical bo esAn electrical box nished with a blank cover, or with noelectrical equipment installed, that can be used or a luminaireor sur ace- mounted ceiling an, must be considered alow-e cacy luminaire.

o y s o n/a

recessed luminai es in insulated ceilin s

Luminaires that are recessed into insulated ceilings must meet allo the ollowing conditions:

Must be listed or zero clearance insulation contact by UL or1.other nationally recognized testing / rating laboratory

Must have a label certi ying the luminaire as airtight with2.

air leakage less than 2.0 CFM at 75 Pascals when tested inaccordance with ASTM E283.

Must be sealed with a gasket or caulk between the luminaire3.

housing and ceiling. All air leak paths between conditionedand unconditioned space must be sealed with a gasket orcaulk, including exhaust an housings.

Must allow readily accessible ballast maintenance and4.replacement rom below the ceiling without having to cutholes through the ceiling.

o y s o n/a


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46

o Kitc ens Watta e calculationsAll high-e cacy luminaires, Or at least 50% o total wattagemust be used by high-e cacy luminaires.

Table a: high-eFFicacy waTTage in kiTchen

hi -e cacyLuminai e Type Watts Qty. =

hi -e cacyWatts

1. =

2. =

3. =

4. =

5. =

Total A. hi -e cacy Watta e:

Table b: low-eFFicacy waTTage in kiTchen

Low-e cacyLuminai e Type Watts Qty. =

Low-e cacyWatts

1. =

2. =

3. =

4. =

5. =

Total A. Low-e cacy Watta e:

Note: Low-e cacy wattage or electrical boxes nished with ablank cover, or with no electrical equipment installed, to be usedas a luminaire or sur ace-mounted ceiling an, are calculated as180 W o low-e cacy lighting per blank electr ical box.

Code-compliant i Total A Total B(high-e icacy wattage is more than low-e icacy wattage).

o y s o n/a


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appendIx | compliance checkliST


47

Additional kitc en low-e cacy li tinTo quali y or additional kitchen low-e cacy lighting, all three othe ollowing conditions must be met.

All low-e cacy luminaires in the kitchen are controlled1.

by a vacancy sensor, dimmer, Energy ManagementControl Systems (EMCS), or multi-scene programmablecontrol system.

Permanently installed luminaires in garages, closets larger2.than 70 t 2, laundry rooms, and utility rooms are high e cacyAND controlled by a vacancy sensor.

The total kitchen wattage or low-e cacy luminaires (Table B)3.

does not exceed the total wattage or high-e cacyluminaires (Table A) and the additional wattage orlow-e cacy luminaires (Table C) combined.

Total B (Total A + Total C)

Table c: addiTional low-eFFicacy waTTage allowed in kiTchen

Dwellin unit sizeAdditionallow-e cacywatta e

Total C(select one)

2,500 t 2 50 W

2,500 t 2 100 W

o y s o n/a

Li tin inte nal to cabinets

Permanently installed lighting internal to cabinetsuses 20 W per linear oot o illuminated cabinet.

o y s o n/a

o Bat ooms,ga a es,

Closets > 70 t 2,Laund y rooms, &

Utility rooms

Permanently installed luminaires in bathrooms, garages,closets larger than 70 t 2, laundry rooms, and utility rooms must behigh-e cacy luminaires Or controlled by a vacancy sensor.

o y s o n/a

o Ot e rooms(e.g., hallways, diningrooms, amily rooms,

home o ces, bedrooms,attic spaces, wine cellars)

Permanently installed luminaires in rooms or areas other thankitchens, bathrooms, garages, closets larger than 70 t 2, laundryrooms, and utility rooms must be high-e cacy luminaires Or controlled by a dimmer switch Or controlled by a vacancy sensor.

o y s o n/a


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a acceSSible: Having access to, possibly requiringremoval or opening o access panels, doors, orsimilar obstructions.

approval by The commiSSion: Approval underSection 25402.1 o the Public Resources Code.

aSTronomical Time SwiTch: A lighting controldevice that switches lights on or o at dusk ordawn, or at speci ed times o the day.

b baThroom: A room or area containing a sink usedor personal hygiene, toilet, shower, or tub.

C carporT: A covered, open-sided structure usedsolely or the purpose o parking vehicles, consistingo a roo over the parking area. Carports typically

are ree standing or projected rom the side o thebuilding and are two or ewer car lengths deep.

chandelier: A ceiling-mounted, close-to-ceiling, orsuspended decorative luminaire that uses glass,crystal, ornamental metals, or other decorativematerials. Typically used as a signi cant elemento interior architecture.

cloSeT: A non-habitable room used to store linens,household supplies, clothing, non-perishable

ood, or similar uses, which is not a hallway orpassageway. Title 24, P rt 6 applies only to closetslarger than 70 t 2.

caliFornia energy commiSSion: The Cali orniaState Energy Resources Conservation andDevelopment Commission.

D dimming, conTinuouS: A lighting control methodthat is capable o varying the light output o lampsover a gradual range rom ull light output to o .

dimming, STepped: A lighting control method thatvaries the light output o lamps in one or morepredetermined discrete levels between ull lightoutput and o .

dining area: An area or room where meals areeaten. May be attached to the kitchen or in aseparate space.

e elecTrical box: A plastic or metal container orelectrical circuits where the main electricalservice rom the grid is distributed throughout thebuilding. Also called a junction box or electricaljunction box.

eFFicacy, lamp: The quotient o rated initiallamp output (lumens) divided by the rated lamp

power (watts), without including auxiliaries suchas ballasts, trans ormers, and power supplies.E cacy indicates how much light is produced by alamp or lighting system or the amount o electricalpower consumed.

energy managemenT conTrol SySTem (emcS): A computerized control system designed toregulate the energy consumption o a building bycontrolling the operation o an energy-consumingsystem. The EMCS is capable o monitoringenvironmental and system loads, adjusting

operations to optimize energy usage, andresponding to demand response signals.

exhauST Fan: A an in a wall or ceiling that movesair rom within a building to outside the building.

Commonly located in bathrooms and kitchens.

glossary


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f FluoreScenT: A low-pressure mercury electric-discharge lamp in which a phosphor coatingtrans orms some o the UV energy generated intovisible light.

g garage: A non-habitable building or portion o abuilding, attached to or detached rom a residentialdwelling unit, in which motor vehicles are parked.

general lighTing: Lighting designed to providea substantially uni orm level o illuminationthroughout an area, exclusive o any provision

or special visual tasks or decorative e ect.When designed or a lower-than-task illuminanceused in conjunction with other speci c tasklighting systems, general lighting may be calledambient lighting.

gu-24: A lamp holder and socket con guration,based on a coding system by the InternationalEnergy Consortium, where G stands or thebroad type o two or more projecting contacts(such as pins or posts), U distinguishesbetween lamp and holder designs o similar butnot interchangeable types, and 24 indicates24 millimeters center to center spacing o theelectrical contact posts.

h hid: High intensity discharge lamp such as metalhalide or high pressure sodium.

high-eFFicacy luminaireS: A luminaire meetingthe wattage and minimum lumen requirementsin Tables 1 and 2 on page 10 . High-e cacyluminaires contain only high-e cacy lamps orhigh-e cacy LED lighting, and must not contain asocket that allows any low-e cacy lighting systemto be used.

high-riSe reSidenTial building: A building, otherthan a hotel / motel, o Occupancy Group R,Division 1, with our or more habitable stories.

i incandeScenT lamp: An electric lamp in whicha lament gives o light when heated by anelectric current.

K kiTchen: A room or area with cooking acilitiesand / or an area where ood is prepared.

l lamp: The lighting industrys term or a light bulb.

laundry room: A non-habitable room or space thatcontains plumbing and electrical connections or awashing machine and/or clothes dr yer.

lighT emiTTing diode (led): A PN junctionsemiconductor device that emits incoherentoptical radiation when biased in the orwarddirection. The acronym LED typically re ers to anLED component, device, or package.

hybrid led luminaire: A complete lighting unitconsisting o both an LED light source and anon-LED light source.

led lamp: An LED component, device, or package,and other optical, thermal, mechanical, andelectrical (control circuitry) components with

an integrated LED driver (power source) and astandardized base that is designed to connectto the branch circuit via standardized base, lampholder, or socket.

led luminaire: A complete LED lighting unitconsisting o a light source and driver togetherwith parts to distribute light, to position andprotect the light source, and to connect the lightsource to a branch circuit. The light source itselmay be an LED component, package, device,array, module, source system, or lamp. The LED

luminaire is intended to be connected directly to abranch circuit.

line-volTage: Line-voltage sockets pair with avariety o screw, pin, and bayonet bases (alsocalled holders). Line-voltage sockets do notinclude a trans ormer, ballast, or power supplybetween the wires connected to the luminaire andthe lamp. Only GU-24 line voltage luminaires canquali y as high e cacy under Title 24, P rt 6 .

low eFFicacy: A low-e cacy luminaire is one that

does not meet the quali cations or high e cacy,or contain any type o line-voltage socket or lampholder capable o accepting a low-e cacy lamp,track lighting, incandescent lighting, conversionsbetween screw-base and pin-base sockets,electrical boxes used or a luminaire or ceiling an,or uncerti ed LED light source or GU-24 base.


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low-riSe reSidenTial building: A building, otherthan a hotel / motel, that is o Occupancy Group R,Division 1, and is multi- amily with three habitablestories or less; or a single- amily residence oOccupancy Group R, Division 3; or an OccupancyGroup U building located on a residential site.

lumen: The unit o measurement o the amount olight, also known as luminous fux, produced by alight source.

luminaire: A complete lighting unit consisting o alamp and the parts designed to distribute the light(lens, refector), to position and protect the lamp(housing), and to connect the lamp to the powersupply (ballast, trans ormer). Also re erred to as alighting xture or light xture.

M moTion SenSor: A device that automatically turnslights o soon a ter an area is vacated. Motionsensor applies to a device that controls outdoorlighting systems. When the device is used tocontrol indoor lighting systems, it is called anoccupant sensor. The device o ten also is calledan occupancy sensor, occupant-sensing device, orvacancy sensor.

mulTi-level lighTing conTrol: A lighting controlthat reduces lighting power in multiple stepswhile maintaining a reasonably uni orm level oilluminance throughout the area controlled.

mulTi-Family building: A building containingmultiple dwelling units that share common wallsand also may share common foors or ceilings(apartments and dorms).

mulTi-Scene programmable SwiTch: A lightingcontrol device that has the capability o settinglight levels throughout a continuous range, andhas pre-established settings within the range.

n nook: An area adjacent to the kitchen not on thesame switch. Falls under Title 24, P rt 6 OtherSpaces Residential Lighting Standards, not underwattage requirements or kitchens.

o occupanT SenSor: A device that automaticallyturns lights o soon a ter an area is vacated.The term occupant sensor applies to a devicethat controls indoor lighting systems. Whenused to control outdoor lighting systems, it iscalled a motion sensor. Also may be called an

occupancy-sensing device, occupancy sensor, orvacancy sensor.

oTher roomS: Includes any room or area that is nota kitchen, bathroom, garage, closet larger than70 t 2, laundry room, or utility room (e.g., hallway,dining room, amily room, home o ce, bedroom,attic space, wine cellar).

ouTdoor lighTing, reSidenTial: Permanentlyinstalled luminaires that provide lighting orprivate patios, entrances, balconies, and porches.

Permanently installed luminaires in or aroundswimming pools, water eatures, or other locationssubject to Article 680 o the Cali ornia ElectricalCode do not need to be high e cacy.

p parking area: The area o a parking garage usedor parking and maneuvering vehicles on a single

foor, and which is not the roo o a parkingstructure.

parking garage: A covered building or structureor the purpose o parking vehicles. Consists

o at least a roo over the parking area enclosedwith walls on all sides. May have ences, rails,partial walls, or other barriers in the place o walls.Parking garages have entrances and exits, andinclude space or vehicle maneuvering to reach theparking spaces. I the roo o a parking structurealso is used or parking, the section without anoverhead roo is considered a parking lot insteado a parking garage.

parking loT: An uncovered area or the purpose oparking vehicles.

pendanT: A device in which the luminaire issuspended rom above.


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permanenTly inSTalled lighTing: All luminairesattached to the inside or outside o a buildingsite, including track and fexible lighting systems;lighting attached to walls, ceilings, columns, insideor outside o permanently installed cabinets,internally illuminated case work, mounted on

poles, in trees, or in the ground; attached toceiling ans and integral to exhaust ans that areother than exhaust hoods or cooking equipment.Does not include portable lighting or lighting thatis installed by the manu acturer in appliances.

phoToconTrol: An electric device that detectschanges in illumination levels, then controlslighting load at predetermined illumination levels.For example, automatically turning xtures on atdusk and turning them o at dawn.

pin-baSe FixTure: A xture that accepts lamps witha pin base, which per orms the same unction asthe screw base, but with higher e ciency. GU-24pin-base xtures are meant to prevent the use olow-e cacy lamps.

porTable lighTing: Lighting with plug-inconnections or electric power that is table and

reestanding foor lamps, attached to modularurniture, workstation task lights, lights attached

to workstation panels, movable displays, and other

luminaires that are not permanently installed.

r readily acceSSible: Capable o being reachedquickly or operation, repair, or inspection, withoutclimbing or removing obstacles, or resorting tousing portable access equipment.

rESidEnTial comPliancE manual : The Reside ti l C mpli ce M u l was developed by theCali ornia Energy Commission, under section25402.1 o the Public Resources Code, to aiddesigners, builders, and contractors in meetingthe 2008 Title 24 Buildi g E erg E cie c St d rds or low-rise residential buildings.

reSTroom: A room or suite o rooms providingpersonal acilities such as toilets and sinks.

S Screw-baSe FixTure: A xture that accepts lampswith a screw base, e.g., incandescent lamps andCFL lamps. Screw-base xtures are treated aslow e cacy under Title 24, P rt 6 .

Sconce: A wall-mounted ornamental luminaire.

STairS: A series o steps providing passage romone level o a building to another.

STorage building: A non-habitable detachedbuilding used to store tools, garden equipment, ormiscellaneous items.

t TaSk lighTing: Lighting that is designed speci callyto illuminate a task location, and that is generallycon ned to the task location.

u uTiliTy room: A non-habitable room or building

that contains only HVAC, plumbing, or electricalcontrols or equipment; not a bathroom, closet,garage, or laundry room.

v vacancy SenSor: An occupant sensor orwhich the lights must be manually turned on,which automatically turns the lights o soona ter an area is vacated. The device also maybe called a manual-on occupant sensor, ormanual-on / automatic o sensor.

W waTT: The unit o measure or the electric powerused by a lamp or xture.


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For more inFormaTion abouT TiTlE 24, ParT 6 ,viSiT The clTc webSiTe aTc tc. c i . /tit 24
http://cltc.ucdavis.edu/title24http://cltc.ucdavis.edu/title24http://cltc.ucdavis.edu/title24http://cltc.ucdavis.edu/title24http://cltc.ucdavis.edu/title24http://cltc.ucdavis.edu/title24

title24 residential lighting design guide 2008

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