Lighting Controls

a. Refer to Specifications Section 16515 for technical requirements.

Provide a Central Lighting Control System for on-off inputs to lighting in the following areas:

1. Corridors and Stairs.

2. Locker Rooms.

3. Gymnasium.

4. Auditoria and Multi-Purpose Rooms.

5. Cafeteria/ Kitchen.

6. Laboratories and Shops with controls similar to classrooms.

7. Restrooms lights and exhaust fans (fans interlocked with lights).

8. Main Office, attendance office, and other offices where clerks are always present. (Provide non-locking local switching for manual operation. In addition, use light-intensity sensing units to reduce electric light levels in areas where daylighting contribution is significant.)

9. Private Offices and conference rooms. Provide also a wall-mounted occupancy sensor with automatic on-off switch as well as manual switches. Provide a daylight sensor in larger windowed offices to switch off half the lamps.

10. Custodial and Equipment Rooms, and unsupervised rooms.

Provide occupancy sensor with automatic on-off switch.

11. Covered walks.

12. Building exterior, parking lot, and parking garage lights. (Inputs to perimeter and parking lot lighting shall have astronomic clock capabilities.) Controls for these areas shall be equipped with key operated override switches to turn lights either on or off for non-recurring events.

13. Attic lights, roof lights, and remotely controlled equipment:

provide local switches with pilot lights, and capability for 2hrs override.

14. Provide lock-type and vandal-resistant switches for local manual operation.

15. Lighting control panels shall be equipped with control relays for normal and if required emergency circuits.

16. The lighting control system shall “sweep off” all controlled interior lights and selected exterior lights at pre-determined programmable intervals during unoccupied times.

17. Time-clock programs shall allow seven-day programming functions, summer and holiday schedules and special events.

18. All the clocks for lighting controls shall be of the astronomic type.

19. Lighting control equipment shall be locked, located, or otherwise made secure against vandalism.

b. Classroom Lighting Controls

1. Provide low-voltage lighting controls for each classroom as prescribed in the Southern California Edison “Classroom Lighting Guidelines.” Include the teaching wall switch and dimming or selective-switching controls.

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2. Provide dual technology occupancy sensors (infrared and passive sonic) with auto-on-off capability. Motion sensor(s) shall turn off all lights in the room after a pre-set but programmable interval with no motion.

3. Light fixtures shall have wall-mounted dimmer switching devices for manual light reduction when daylighting is adequate or for darkening of the room for AV presentations. Provide dimmer switches adjacent to the classroom entrance door and at the teaching wall, easily accessible to the teacher.

4. Light fixtures within 15'-0" of windows shall be separately dimmed and shall also be controlled by a ceiling-mounted daylight photo sensor to adjust the light intensity in the classroom to a uniform level.

5. Provide for classroom lighting controls to be connected to the Central Lighting Control System in the future (or initially if specifically authorized by the District).

6. The lights may be manually turned on or off at any time by the wall switches, and at pre-determined times by the lighting control system.

7. The lighting control system shall cause the lights to “blink” at pre-determined but programmable intervals prior to sweeping the lights off.

8. Provide a separate switch to control the white board light. Locate switch together with other switches on teaching wall.

c. Corridor lighting

1. Corridor lighting shall be controlled by dual technology occupancy sensors. Emergency lighting in corridors shall be switched together with normal lighting via appropriate relays in the lighting control panel. Upon failure of normal power, emergency lighting fixtures shall automatically operate from the emergency power source.

2. Strategically located occupancy sensors shall turn off the lights after preset but programmable intervals with no motion in the area.

3. A switch under staff control may override the motion sensors for preset but programmable intervals (if specifically authorized by the District)

4. Emergency lights shall turn-on in case of power failure. Upon return of normal power all emergency fixtures shall return to their prior state.

d. Emergency Lighting

1. Emergency lighting controls shall be equipped with by pass circuitry that will bypass all manually operated switches, lighting control systems, dimmers and occupancy sensors during power failure situations, design shall comply with applicable codes and regulations. Each area of luminaries or groups of luminaries shall be equipped with and controlled by a UL924 listed emergency lighting control unit such as the Legrand/Watt Stopper Model No.

ELCU-100 to allow the detection of localized power failures.

2. LED exit sign luminaries shall operate continuously. All other emergency lighting luminaries shall either be switched with its associated general lighting luminaries or be normally off and only operate during a power failure. Continuously operating luminaries other than LED exit luminaries is not permitted.

3. All emergency lights shall be powered by the emergency power source, and may be controlled by the lighting control panel.

4. Emergency lights shall be switched together with the general lighting for the same area, but shall turn on (at full brightness for dimmable fixtures) upon loss of general power.

5. Areas such as Gymnasiums that utilize HID lighting and also require emergency lighting shall be equipped with normally off emergency luminaries. These luminaries shall remain on after the restoration of utility power for a period long enough to allow a majority of the HID luminaries to cool down and restrike (20 to 30 minutes). The use of the quartz restrike option within the HID luminaries shall not be specified or used.

6. All emergency system luminaries shall be labeled as being part of the emergency lighting system with labeling similar to that required for fire alarm devices located above ceilings. The labels shall be placed directly onto or adjacent to the luminaries and be visible from the floor. The labels shall read “EMERGENCY LIGHTING FIXTURE”.

7. Provide connection details for each style of control for the emergency lighting on the drawings. Also indicate on the drawings adjacent to the luminaries or groups of luminaries the style of control that is required for the luminary.

e. Security Lighting

1. Use a separate lock-type switch to control security lighting.

Security lighting shall be a separate zone in the lighting control system.

2. Security lighting shall operate from dusk until dawn, seven days per week.

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3. All lights designated for security shall be labeled “SL”.

4. Night lights shall operate from dusk until pre-determined but programmable time to accommodate night staff and special school functions.

5. All lights designated for night lighting shall be labeled “NL”.

6. Provide local override switch(es) in a location available only to staff. Override switch(es) shall force lights on or off when required for non recurring events.