CA Title 24 2013 Lighting and Receptacle Control Requirements for Commercial Buildings

CA Title 24 2013 Lighting and Receptacle Control Requirements for Commercial Buildings
CA Title 24 2013 Lighting and
Receptacle Control Requirements
for Commercial Buildings
Michael Jouaneh, CEM, LEED AP
July 1, 2014
CA Title 24 2013 Lighting and Receptacle Control
Requirements for Commercial Buildings
This document summarizes the mandatory lighting
control requirements and optional control credits
for commercial buildings according to California’s
2013 Building Energy Efficiency Standards. It is
for information purposes only. It is not meant to
replace the California Energy Commission’s (CEC)
Title 24 Part 6 Standards/Regulations. Please refer
to those standards for precise interpretation. The
complete standards and compliance manuals
are available on the CEC website at:
http://www.energy.ca.gov/title24/.
For application examples that highlight
Lutron Title 24 solutions, please visit
http://www.lutron.com/appguides
What is Title 24?
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Title 24 Part 6 is California’s energy efficiency code
Recently revised to decrease energy consumption
Effective July 1, 2014
Effects all newly constructed or altered
commercial buildings
What’s new?
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Robust building commissioning and functional
testing requirements
Continuous dimming (or multiple light levels)
required for most spaces
Partial-OFF and Partial-ON occupant
sensing controls in stairwells and corridors
Increased daylight control requirements
Demand responsive lighting control in new
construction buildings greater than 10,000 sq. ft.
Energy metering of loads 50 VA or greater
Controlled receptacles in open office, private office
and conference rooms
More stringent control requirements for existing
building lighting alterations
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2 Lutron
Lutron is not liable for reliance on this document toward
interpreting or complying with your energy code requirements.
CA Title 24 2013 Lighting and Receptacle Control
Requirements for Commercial Buildings
What are the mandatory requirements for lighting and receptacle controls
in commercial buildings?
1)Area Controls
[section 130.1(a)]
Each area enclosed by ceiling-height partitions
must have an independent, manual switching or
control device that:
• is readily accessible to occupants
• is located in the space (with some exceptions)
• must provide ON and OFF functionality
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Exceptions:
Classrooms with a lighting load of 0.7 W/sq. ft.
or less need only one control step between
30%–70% of full lighting power (except in
daylit zones)
Spaces with only one luminaire and no more than
two lamps
Lutron Solution:
All Lutron dimming solutions that include
fluorescent dimming ballasts and dimmable
LED drivers
Exceptions:
Up to 0.2 W/sq. ft. of lighting for security or egress
Display lighting must be separately switched
on circuits that are 20 amps or less
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Lutron Solution:
All Lutron solutions that include manual lighting
controls (e.g. switches, dimmers, keypads, or
multi-scene controls)
3)Shut-off Controls [section 130.1(c)]
All indoor lighting needs to have the following:
• Automatic lighting shut-off controls (timeclock or
occupancy sensor) for all lighting on every floor
• Override of automatic shut-off allowed for not more
than 2 hours
• At least one control is required for every
5,000 square feet
• Separate controls for general, display, ornamental,
and display case lighting
2)Multi-level Lighting Controls
[section 130.1(b)]
The general lighting of an enclosed space
100 square feet or larger, with a connected lighting
load that exceeds 0.5 W/sq. ft., shall have multilevel lighting controls.
• Lighting shall have the required number of control
steps or be continuously dimmable
(see Table 130.1-A on page 8)
• Each luminaire shall be controlled by one of the
following methods:
1. Manual dimming
2. Lumen maintenance
3. Tuning
4. Automatic daylight controls
5. Demand responsive lighting controls
Lutron is not liable for reliance on this document toward
interpreting or complying with your energy code requirements.
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Exceptions:
Lighting for 24-hour operation
Office buildings may have up to 0.05 W/sq. ft. of
lighting continuously illuminated for any area that
must be lit for security or emergency egress
Electrical equipment rooms
Note: Offices 250 square feet or smaller,
multipurpose rooms of less than 1000 square feet,
and classrooms and conference rooms of any size,
shall be equipped with occupancy sensor(s) to
shut off the lighting. In addition, controls shall be
provided that allow the lights to be manually shut
off regardless of the sensor status.
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CA Title 24 2013 Lighting and Receptacle Control
Requirements for Commercial Buildings
What are the mandatory requirements for lighting and receptacle controls
in commercial buildings?
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Partial-OFF occupancy sensors
Lighting in these spaces must be automatically
reduced by at least 50% when they are unoccupied:
Stairwells
Corridors
Warehouse aisles and open areas
Library book stack aisles
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Note: A timeclock is required to turn off the lights
during unoccupied hours. The following buildings
are exempt from this requirement:
Buildings with more than 10 occupants during
unoccupied hours
Buildings open to the public
Buildings opened for general occupancy
Partial-OFF control in parking garages,
parking areas, and loading areas
Requirements in these areas include:
Occupant sensing controls that have at least one
control step between 20%–50% of lighting power
No more than 500 W of rated lighting power can
be controlled together in a single zone
Controls shall be capable of automatically turning
lighting full ON and be activated from all paths
of egress
Hotel guestrooms
All lighting in hotel/motel guest rooms must be
automatically turned OFF within 30 minutes of
occupants leaving
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Lutron Solution:
All Lutron solutions that include occupancy
sensors and timeclock capable devices, such as:
Radio Powr Savr®
GRAFIK Eye® QS
Energi Savr NodeTM
XPS
LCP128
Quantum®
4)Automatic Daylight Controls
[section 130.1 (d)]
Automatic daylight controls are required in primary
and secondary sidelit daylight areas, and skylit
daylight areas. (To learn what qualifies as primary
and secondary zones, see pages 11 and 12.)
The lighting must be continuously dimmable or
meet the required number of control steps from
Table 130.1-A (see page 8).
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Exceptions:
Spaces using less than 0.3 W/sq. ft.
Rooms where the total lighting power in the
daylight zones is less than 120 W
Rooms with a total glazing area less than
24 square feet
Lutron Solution:
All Lutron solutions that include fluorescent
dimming ballasts and dimmable LED drivers
controlled by daylight sensors
Exception:
One high efficacy luminaire separately controlled
within 6 feet of room entry
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4 Lutron
Lutron is not liable for reliance on this document toward
interpreting or complying with your energy code requirements.
CA Title 24 2013 Lighting and Receptacle Control
Requirements for Commercial Buildings
What are the mandatory requirements for lighting and receptacle controls
in commercial buildings?
5)Demand Responsive Controls
[section 130.1 (e)]
Demand responsive automatic lighting controls
that uniformly reduce lighting power consumption
by a minimum of 15% below total installed lighting
power upon receipt of a demand response signal
shall be installed.
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Exceptions:
Buildings less than 10,000 square feet
Spaces using less than 0.5 W/sq. ft. of
lighting power
Building retrofits that do not increase the lighting
power density above allowable levels
Lutron Solution:
Energi Savr NodeTM
Quantum®
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6)Controls for Outdoor Lighting
[section 130.2 (c)]
Outdoor lighting controls need to meet the
following requirements:
• Outdoor incandescent lighting rated over 100 W
shall be controlled with a motion sensor
• Outdoor lighting must be controlled with either
a photocontrol or astronomical timeclock that
automatically turns lights OFF when daylight
is available
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Outdoor sales frontage, lots, or canopies
shall use:
part-night lighting controls; or
motion sensor that reduces lighting power
by 40%–80% when the area is vacant and
provides auto-ON functionality
Building facades, ornamental hardscape,
and outdoor dining shall use:
part-night lighting controls; or
motion sensor that reduces lighting power
by 40%–80% when the area is vacant and
provides auto-ON functionality; or
timeclock control that reduces lighting power
by at least 50%
Exceptions:
Lighting required per health or life safety statute,
ordinance, or regulation
Lighting in tunnels required to be illuminated 24/7
Lutron Solution:
GRAFIK Eye®
Energi Savr NodeTM
XPS
LCP128TM
Quantum®
Additional exterior lighting control
requirements
Luminaires that are 24 ft or less from the ground
must have controls that automatically reduce
lighting power by 40%–80% when the area
is vacant
The controls must provide auto-ON when area
is occupied
Lutron is not liable for reliance on this document toward
interpreting or complying with your energy code requirements.
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Lutron 5
CA Title 24 2013 Lighting and Receptacle Control
Requirements for Commercial Buildings
What are the mandatory requirements for lighting and receptacle controls
in commercial buildings?
7) Sign Lighting Controls
[section 130.3]
These controls need to meet the following
requirements:
• All indoor signs shall be controlled with an
automatic or astronomical time switch control
• All outdoor signs shall be controlled with a
photocontrol and automatic time switch,
or an astronomical time switch
• Outdoor signs on both day and night shall be
controlled with a dimmer that provides the
ability to automatically reduce sign power by
a minimum of 65% during nighttime hours
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Lutron Solution:
GRAFIK Eye®
Energi Savr NodeTM
XPS
LCP128TM
Quantum®
8) Lighting Control Acceptance Testing
[section 130.4]
The following lighting controls must be
functionally tested by a Certified Lighting Control
Acceptance Test Technician (CLCATT):
• Automatic daylight controls
• Lighting shut-off controls (occupancy sensors
and timeclocks)
• Demand responsive lighting controls
• Outdoor lighting controls
Lutron Solution:
Lutron field service has CLCATTs on staff that
can perform the acceptance testing
9) Energy Metering
[section 130.5(b)]
Whole-building electrical energy metering is
required for all buildings.
• For buildings that are rated for 50 kVA or more,
lighting loads must be disaggregated to allow for
future metering of lighting separately if desired
• Buildings that are rated for 250 kVA or more must
separate lighting by floor, area, or type
Lutron Solution:
Quantum energy metering provides real-time,
actual energy measurement of lighting, HVAC,
and plug loads
10)Automatic Receptacle Control
[Section 130.5(d)]
Controlled receptacles that automatically
shut-off are required in private offices, open
offices, lobbies, copy rooms, kitchenettes, and
conference rooms.
• At least one controlled receptacle must be within
6 feet of an uncontrolled receptacle; this can
be accomplished by switching one of the two
outlets in each receptacle
• Controlled receptacles need to be marked to
differentiate them from uncontrolled receptacles
Note: Plug-in strips and other plug-in devices
that incorporate an occupancy sensor can’t be
used to comply with this requirement.
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6 Lutron
Lutron Solution:
20 A PowPak® relay module
20 A Energi Savr Node with SoftSwitch®
XP switching module
Lutron is not liable for reliance on this document toward
interpreting or complying with your energy code requirements.
CA Title 24 2013 Lighting and Receptacle Control
Requirements for Commercial Buildings
What are the lighting control credits?
The following table contains the lighting power adjustment factors (lighting control credits) which allow for
more watts per square foot to be used in the building when using the appropriate lighting controls. For
instance, a factor of 0.20 allows an additional 20% of the controlled wattage to be used in the building.
TABLE 140.6-A LIGHTING POWER DENSITY ADJUSTMENT FACTORS (PAF)
a. To qualify for any of the Power Adjustment Factors in this table, the installation shall comply with the applicable
requirements in Section 140.6(a)2.
b. Only one PAF may be used for each qualifying luminaire unless combined below.
c. Lighting controls that are required for compliance with Part 6 shall not be eligible for a PAF.
Type of control
1. Partial-ON Occupancy Sensing Control
2. Occupancy Sensing Controls in Large Open
Plan Offices
Type of area
Any area < 250 square feet enclosed by
floor‑to‑ceiling partitions; any size classroom,
conference room, or waiting room
In open plan offices
> 250 square feet:
One sensor controlling
an area that is:
0.20
No larger than
125 square feet
0.40
From 126 to
250 square feet
0.30
From 251 to
500 square feet
0.20
Manual Dimming
3. Dimming System
Factor
0.10
Hotels, motels, restaurants, auditoriums, theaters
Multi-scene Programmable
0.20
4. Demand Responsive Control
All building types less than 10,000 square feet.
Luminaires that qualify for other PAFs in this
table may also qualify for this demand response
control PAF
0.05
5. Combined Manual Dimming plus Partial-ON
Occupancy Sensing Control
Any area < 250 square feet enclosed by
floor‑to‑ceiling partitions; any size classroom,
conference, or waiting room
0.25
Lutron is not liable for reliance on this document toward
interpreting or complying with your energy code requirements.
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CA Title 24 2013 Lighting and Receptacle Control
Requirements for Commercial Buildings
What is the minimum number of lighting control steps required to meet the
multi-level lighting controls requirement?
TABLE 130.1-A MULTI-LEVEL LIGHTING CONTROLS AND UNIFORMITY REQUIREMENTS
Luminaire Type
Minimum Required Control Steps Uniform Level of Illuminance
(percent of full rated power1)
Shall Be Achieved By:
Line-voltage socket except GU‑24
Low-voltage incandescent systems
Continuous dimming 10%–100%
LED luminaires and LED source systems
GU-24 rated for LED
GU-24 sockets rated for fluorescent > 20 W
Continuous dimming 20%–100%
Pin-based compact fluorescent > 20 W 2
GU-24 sockets rated for fluorescent < 20 W
Pin-based compact fluorescent < 20 W
Maximum one step between
30%–70%
Linear fluorescent and U-bent fluorescent < 13 W
Minimum one step in each range:
Linear fluorescent and U-bent fluorescent > 13 W
Track lighting
20%–
40%
50%–
70%
80%–
85%
100%
Stepped dimming, continuous
dimming, or switching
alternate lamps in a luminaire,
having a minimum of 4 lamps
per luminaire, illuminating
the same area in the
same manner
Minimum one step between
30%–70%
Stepped dimming,
continuous dimming, or
separately switching circuits
in a multi‑circuit track with a
minimum of two circuits
Minimum one step between
50%–70%
Stepped dimming, continuous
dimming, or switching
alternate lamps in each
luminaire, having a minimum
of 2 lamps per luminaire,
illuminating the same area in
the same manner
HID > 20 W
Induction is > 25 W
Stepped dimming, continuous
dimming, or switching
alternate lamps in a luminaire
Other light sources
Full rated input power of ballast and lamp, corresponding to maximum ballast factor
Includes only pin-based lamps: twin tube, multiple twin tube, and spiral lamps
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8 Lutron
Lutron is not liable for reliance on this document toward
interpreting or complying with your energy code requirements.
CA Title 24 2013 Lighting and Receptacle Control
Requirements for Commercial Buildings
What are the lighting control requirements for existing building
lighting renovation?
Answering the questions in the following flowchart will help determine the control requirements for
lighting renovations.
TITLE 24 2013 LIGHTING CONTROL REQUIREMENTS FOR INTERIOR LIGHTING RETROFITS
[Section 141.0(b)2I]
START
1. Are you changing the size or type of the enclosed
space or increasing the lighting power density?
YES
Control Requirements:
– Area controls [130.1(a)]
– Multi-level control (only
for modified light fixtures)
[130.1(b)]
– Shut-off controls [130.1(c)]
– Automatic daylight controls
(only for modified light
fixtures) [130.1(d)]
– Demand responsive
controls [130.1(e)]
NO
2. Are you removing, re-wiring, or altering
the electrical wiring in the luminaires?
YES
3. Are you altering less
than 10% of the
existing luminaires
NO
4. Are you modifying less than 40
luminaires on the (a) floor, or (b)
entire tenant space, or (c) entire
common space?
YES
No control requirements
YES
NO
5. Is the new lighting power density greater
than 85% of 2013 code allowance?
YES
NO
NO
Control Requirements:
Control Requirements:
– Area controls [130.1(a)]
– Area controls [130.1(a)]
– Two-level control (only for
– Multi-level control (only
modified light fixtures)
for modified light fixtures)
– Shut-off controls
[130.1(c)]
[130.1(c)]
– Shut-off controls [130.1(c)]
– Automatic daylight controls
(only for modified light
Lutronfixtures)
is not liable
for reliance on this documentLutron
towardis not liable for reliance on this document toward
[130.1(d)]
interpreting or complying with your energy code interpreting
requirements.
or complying with your energy code requirements.
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CA Title 24 2013 Lighting and Receptacle Control
Requirements for Commercial Buildings
Commonly used terms
Automatic daylight control uses one or more
photosensors to detect changes in daylight
illumination and then automatically adjusts the
luminous flux of the electric lighting system
in response.
Demand response is short-term changes in
electricity usage by end-use customers, from their
normal consumption patterns. Demand response
may be in response to:
a. changes in the price of electricity
b. participation in programs or services designed
to modify electricity use:
i. in response to wholesale market prices or
ii.when system reliability is jeopardized.
Demand response period is a period of time
during which electricity loads are modified in
response to a demand response signal.
Demand response signal is a signal sent by
the local utility, Independent System Operator
(ISO), or designated curtailment service provider
or aggregator, to a customer, indicating a price or
a request to modify electricity consumption, for a
limited time period.
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Demand responsive control is a kind of
lighting control that is capable of receiving
and automatically responding to a demand
response signal.
Lumen maintenance is a strategy used to
provide a precise, constant level of lighting from a
lighting system regardless of the age of the lamps
or the maintenance of the luminaires.
Part-night outdoor lighting control is a time- or
occupancy-based lighting control device or system
that is programmed to reduce or turn off the
lighting power to an outdoor luminaire for a portion
of the night.
Partial-OFF occupancy/motion sensor
automatically turns OFF part of the lighting load
after occupants have left an area and is capable of
automatically turning ON the lighting load when an
area is occupied.
Partial-ON occupancy/motion sensor
automatically turns lights OFF after occupants
have left an area and is capable of automatically or
manually turning ON part of the lighting load when
an area is occupied.
Lutron is not liable for reliance on this document toward
interpreting or complying with your energy code requirements.
CA Title 24 2013 Lighting and Receptacle Control
Requirements for Commercial Buildings
Window daylight zone requirements
Window Daylight Zones
WINDOW
HEAD
HEIGHT (H)
Section View
NOT TO SCALE
W=0.5 x H
W=0.5 x H
PRIMARY ZONE
D1=1.0 x H
SECONDARY ZONE
D2=2.0 x H
Plan View
NOT TO SCALE
NOTE: Fixtures in both zones must be controlled by a daylight sensor. Fixtures in the
primary zone must be controlled separately from fixtures in the secondary zone.
Lutron is not liable for reliance on this document toward
interpreting or complying with your energy code requirements.
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CA Title 24 2013 Lighting and Receptacle Control
Requirements for Commercial Buildings
Skylight daylight zone requirements
Skylight Daylight Zone
SKYLIGHT
AVERAGE
CEILING
HEIGHT (H)
Section View
NOT TO SCALE
W
W=0.7 x H
SKYLIGHT ZONE
Plan View
NOT TO SCALE
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12 Lutron
Lutron is not liable for reliance on this document toward
interpreting or complying with your energy code requirements.
CA Title 24 2013 Lighting and Receptacle Control Requirements
for Commercial Buildings
For additional information
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Code requirements:
Call the California Energy Commission (CEC):
Inside California 1.800.772.3300
Outside California 916.654.5106
http://www.energy.ca.gov/title24
Questions/Comments:
Michael Jouaneh, CEM, LEED AP
610.282.5350
mjouaneh@lutron.com
Telephone: 610.282.3800
International: +1 610.282.3800
World Headquarters
Lutron Electronics Co., Inc.
7200 Suter Road
Coopersburg, PA 18036-1299
USA
www.lutron.com
©2014 Lutron Electronics Co. Inc. P/N 368-3647 REV A
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