The mandatory features and devices are required for all sign lighting projects as applicable. The mandatory measures require that lighting controls are certified by the manufacturers to the Energy Commission, and that sign lighting systems have controls for efficient operation. Mandatory features also set requirements for how lighting systems are classified according to technology, and how to calculate installed wattage.
Mandatory measures for signs are specified in §110.9, §130.0, and §130.3. These mandatory measures for signs are similar to the mandatory measures for the other indoor and outdoor lighting Standards.
For projects that involve building plans, the person with overall responsibility must ensure that the Mandatory Measures that apply to the project are 'listed on the plans. The format of the list is left to the discretion of the Principal Designer.
The Standards limit the installation of lighting control devices and systems as follows:
A. For all lighting control devices that are regulated by the Title 20 Appliance Efficiency Regulations, installation shall be limited to those that have been certified to the Energy Commission by their manufacturer, pursuant to the provisions of Title 20 Cal. Code of Regulations, §1606, to meet or exceed minimum specifications or efficiencies adopted by the Commission.
B. For lighting control devices required to be Certified to the Energy Commission according to Title 24, which are not regulated by Title 20, installation shall be limited to those certified by the manufacturer in a declaration, executed under penalty of perjury under the laws of the State of California, that all the information provided pursuant to the certification is true, complete, accurate and in compliance with all applicable provisions of The Standards; and if applicable that the equipment, product, or device was tested under the applicable test method specified in the Standards
See chapter 5.2 of the 2013 Nonresidential Compliance Manual for additional information about the requirements for lighting control devices, and lighting control systems.
A. Any lighting control device regulated by the Appliance Efficiency Regulations, Title 20 California Code of Regulations, §1601 et seq., may be installed only if the appliance fully complies with those regulations. The Title 20 regulations apply to appliances that are sold or offered for sale in California, except those sold wholesale in California for final retail sale outside the state and those designed and sold exclusively for use in recreational vehicles or other mobile equipment.
B. Once a device is certified, it will be 'listed in the Directory of Lighting Control Devices, which is available from the link below:
Call the Energy Hotline at 1-800-772-3300 to obtain more information.
C. Self-contained lighting control devices are defined by the Title 24 Building Energy Efficiency Standards, and by the title 20 Appliance Efficiency Regulations, as unitary lighting control modules that require no additional components to be fully functional lighting controls.
Self-contained lighting controls required for compliance with the Title 24 Standards are required to be certified by the manufacturer according to the Title 20 Appliance Efficiency Regulations. Following are types of lighting controls that are required to be certified to the Energy Commission in accordance with Title 20:
1. Time-Switch Lighting Controls
•Automatic Time-Switch Controls
•Astronomical Time-Switch Controls
•Multi-Level Astronomical Time-Switch Controls
•Outdoor Astronomical Time-Switch Controls
2. Daylighting Controls
•Automatic Daylight Controls
•Photo Controls
3. Dimmers
•Occupant Sensors
•Motion Sensors
•Vacancy Sensors
D. Demand Responsive Lighting Controls. The following information is for Electronic Message Centers when they are required to have demand responsive controls according to §130.3(a)3
1. Definitions - Following are definitions in §100.1:
a. 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:
•Changes in the price of electricity; or
•Participation in programs or services designed to modify electricity use
•In response to wholesale market prices or
When system reliability is jeopardized.
b. DEMAND RESPONSE PERIOD is a period of time during which electricity loads are modified in response to a demand response signal.
c. 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.
d. DEMAND RESPONSIVE CONTROL is a kind of control that is capable of receiving and automatically responding to a demand response signal.
2. Demand Responsive Controls and Equipment.
Demand responsive controls and equipment shall be capable of receiving and automatically responding to at least one standards’ based messaging protocol which enables demand response after receiving a demand response signal.
A. Lighting Control Systems are defined by the Title 24 Building Energy Efficiency Standards as requiring two or more components to be installed in the building to provide all of the functionality required to make up a fully functional and compliant lighting control. Lighting control systems may be installed for compliance with lighting control requirements in the Standards providing they meet all of the applicable requirements,
B. A lighting control system shall comply with all requirements 'listed below; and all components of the system considered together as installed shall meet all applicable requirements for the lighting control application for which they are installed as required in the Standards.
C. Before a Lighting Control System (including an EMCS) can be recognized for compliance with the lighting control requirements in Part 6 of Title 24, the person who is eligible under Division 3 of the Business and Professions Code to accept responsibility for the construction or installation of features, materials, components, or manufactured devices shall sign and submit an Installation Certificate (§130.4(b)1 and 2; §130.5(f)).
D. If any of the requirements in the Installation Certificate fail the installation tests, the Lighting Control System (or EMCS) shall not be recognized for compliance with Title 24
E. If there are indicator lights that are integral to a lighting control system, they shall consume no more than one watt of power per indicator light.
F. A lighting control system shall meet all of the requirements in the Title 20 Appliance Efficiency Regulations for each of the identical self-contained lighting control devices that it is installed to function as.
Following are the Title 20 requirements for lighting control devices, which lighting control systems installed to comply with Title 24 must meet:
1. Automatic Time-Switch Controls. Commercial automatic time-switch controls labeled for use with lighting shall:
a. Have program backup capabilities that prevent the loss of the device’s schedule for at least 7 days, and the device’s date and time for at least 72 hours if power is interrupted;
b. Be capable of providing manual override to each connected load and shall resume normally scheduled operation after manual override is initiated within 2 hours for each connected load; and
c. Incorporate an automatic holiday shutoff feature that turns off all connected loads for at least 24 hours and then resumes normally scheduled operation.
2. Astronomical Time-Switch Controls. Astronomical time-switch controls shall:
a. Meet the requirements of an automatic time-switch control;
b. Have sunrise and sunset prediction accuracy within plus-or-minus 15 minutes and timekeeping accuracy within 5 minutes per year;
c. Be capable of displaying date, current time, sunrise time, sunset time, and switching times for each step during programming;
d. Have an automatic daylight savings time adjustment; and
e. Have the ability to independently offset the on and off for each channel by at least 99 minutes before and after sunrise or sunset.
3. Automatic Daylight Controls. Automatic daylight controls shall:
a. Be capable of reducing the power consumption in response to measured daylight either directly or by sending and receiving signals;
b. Comply with §1605.3(l)(2)(F) of Title 20 if the day lighting control is capable of directly dimming lamps;
c. Automatically return to its most recent time delay settings within 60 minutes when put in calibration mode;
d. Have a set point control that easily distinguishes settings to within 10 percent of full scale adjustment;
e. Have a light sensor that has a linear response within 5 percent accuracy over the range of illuminance measured by the light sensor;
f. Have a light sensor that is physically separated from where the calibration adjustments are made, or is capable of being calibrated in a manner that the person initiating the calibration is remote from the sensor during calibration to avoid influencing calibration accuracy; and
g. Comply with §1605.3(l)(2)(E) of Title 20 if the device contains a photo control component.
4. Photo Controls. Photo controls shall not have a mechanical device that permits disabling of the control.
5. Dimmer Controls. All dimmer controls shall:
a. Be capable of reducing power consumption by a minimum of 65 percent when the dimmer is at its lowest level;
b. Include an off position which produces a zero lumen output; and
c. Not consume more than 1 watt per lighting dimmer switch leg when in the off position.
d. Dimmer controls that can directly control lamps shall provide electrical outputs to lamps for reduced flicker operation through the dimming range so that the light output has an amplitude modulation of less than 30 percent for frequencies less than 200 Hz without causing premature lamp failure.
e. Wall box dimmers and associated switches designed for use in three way circuits shall be capable of turning lights off, and to the level set by the dimmer if the lights are off.
The lighting wattage of signs shall be determined in accordance with the applicable provisions of §130.0(c). Note that the installed wattage of sign lighting is not considered for compliance when using the Alternate Lighting Source compliance option in §140.8(b). See section 7.4 of this chapter for more information about sign lighting energy requirements.
Following are the most common sign lighting requirements for determining luminaire classification and power:
A. The wattage of luminaires with line voltage lamp holders not containing permanently installed ballasts or transformers shall be the maximum relamping rated wattage of the luminaire;
B. Screw-based adaptors shall not be used to convert an incandescent luminaire to any type of non-incandescent technology. Screw-based adaptors, including screw-base adaptors classified as permanent by the manufacturer, shall not be recognized for compliance with Part 6.
C. The wattage of luminaires with permanently installed or remotely installed ballasts shall be the operating input wattage of the rated lamp/ballast combination published in ballast manufacturer’s catalogs based on independent testing lab reports as specified by UL 1598.
D. The wattage of luminaires and lighting systems with permanently installed or remotely installed transformers shall be the rated wattage of the lamp/transformer combination.
E. The wattage of light emitting diode (LED) luminaires, and LED light engines shall be the maximum rated input wattage of the system when tested in accordance with IES LM-79-08.
An LED lamp, integrated or non-integrated type in accordance with the definition in ANSI/IES RP-16-2010, shall not be classified as a LED lighting system for compliance with Part 6. LED modules having screw-bases including screw based pig-tails, screw-based sockets, or screw-based adaptors shall not be recognized as a LED lighting system for compliance with Part 6.
The rules for determining lighting wattage are discussed in greater detail in Chapter 5 of the Nonresidential Compliance Manual.