26 09 23 – LIGHTING CONTROL DEVICES

PART 1  GENERAL

A. Context:

1. The intent of this section is to provide guidelines for lighting control performance, products and application on CSU’s campuses.

2. Residential dwelling and sleeping units, private offices, open office areas, conference rooms, laboratories, commercial kitchens, restrooms, classrooms, break rooms, custodial closets, storage rooms, electric rooms and mechanical rooms shall be controlled by stand–alone Systems.

B. Codes and Mandates:

1. All CSU projects shall have a lighting control design conforming to the current OSA adopted edition of the IECC and the guidelines outlined in this section.

2. Where requirements are not equal, the stricter requirement shall be used.

3. Projects pursuing LEED certification shall still conform to the guidelines of this section. If control technologies are being considered that are not referenced in this section, consult with FM Electrical Engineer for approval.

C. Network Compatibility:

1. In general, Lighting Control Systems shall not be networked to the Building Automation System (BAS). However, specified Manufacturers and their products shall be able to communicate using native BACnet for future connectivity.

2. Each panel shall be able to connect to the BAS network and shall allow programming of groups and viewing of status via the BAS software.

a.  Small site lighting panels shall not be required to be BACnet compatible.

D. Document Requirements:

1. Electrical lighting plans shall include the following:

a. Distinct symbology to distinguish between different types of occupancy sensors.

i. Technology:

a) Infra–red vs ultrasonic vs. dual technology

ii. Application:

a) Corridor vs. large room vs. small room sensors

iii. Wiring:

a) Line voltage vs. low voltage vs wireless

iv. Location and orientation of each product

b. Typical wiring diagrams of lighting control devices in different applications.

c. Interconnection diagrams per major Subsystem showing proper wiring.

d. A lighting control matrix to indicate lighting control performance.

e. A switch schedule for all low voltage switches identifying what each switch controls.

2. Closeout Documents shall include:

a. Lighting Controls Manual included in the O&M Manual.

b. As–Built Record Drawings showing final installed condition.

c.  Any Lighting Control Drawings produced by the Lighting Controls Manufacturer or Vendor.

d. A record of the schedules/settings programmed into the Lighting Controls System.

E. Quality Assurance:

1. On new construction Projects, a lighting commissioning agent shall be utilized to ensure that the Lighting Control System is fully programmed and operating at its peak performance level.

PART 2  PRODUCTS

A. Performance Specifications:

1. In general, automatic lighting controls shall be vacancy sensor type, “Manual On, Auto Off”.

a. Typical auto off time is after 20 minutes of non–activity.

2. Automatic time switch control devices (typically used in common public areas such as lobbies and vestibules) shall include a manual override switching device in a readily accessible location, near the lights being controlled.

3. In general, automatic daylight harvesting controls shall utilize continuous dimming (versus stepped dimming) in normally occupied areas.

B. Terms:

1. Building Control System:

a. A central Control System controlling a large number of lighting zones through the inputs such as occupancy sensors, time clock programming, manual wall stations, etc.

b. May consist of either one lighting control panel or a group of networked control panels.

2. Manual Control:

a. Control method requiring human intervention to regulate electric lighting, typically through a wall switch.

3. Occupancy Sensor:

a. A control device that detects the presence or absence of people and causes lighting to be regulated either on or off.

4. Photo Sensor:

a. A control device that detects the presence of visible light and causes lighting to be regulated either on, off or dimmed.

5. Relay Control Panel:

a. Central time–based controller program using relays and schedules.

6. Stand Alone Devices:

a. Wall or ceiling mounted occupancy sensor wired directly to lighting fixtures (through a power pack, as required), with no connectivity to devices outside of this room.

C. Products:

1. Lighting Control Network Cable:

a. Cable shall be plenum rated, violet in color with pre–terminated jacks tested by the factory.

2. Occupancy Sensors:

a. Occupancy sensors shall be capable of being converted to vacancy sensors. Auto on shall only be allowed per the IECC allowable exceptions.

b. Dual technology sensors shall be provided for all offices, conference rooms and other occupied workspaces.

c. Passive infrared sensors may be used in common and storage areas, high–bay and exterior applications.

d. Ultrasonic–only sensors may be used in corridors, restrooms and private offices where coverage requirements are met.

e. Wall box sensors shall be installed in smaller rooms, so that the majority of the sensor coverage is confined to the room and shall provide 100% coverage of the room with minimal coverage of any adjacent corridor.

f. Minimize the number of devices required in a room for ease of maintenance.

g. All components shall be UL listed offer a five–year warranty and meet all state and local applicable code requirements.

h. Ceiling sensors shall be located a minimum of 4’–0” from mechanical vents.

i. Ceiling sensors shall be located a minimum of 2’–0” from walls.

j. Sensor timeout shall be set to 20 minutes, typical.

3. Photocells:

a. Exterior photocells shall be outdoor–rated and operate within temperature ranges from –20 °F to 90 °F and be sealed against humidity.

b. Twist lock photocells on pole lighting shall conform to ANSI C136.41 standards.

4. Room Controllers:

a. Acceptable Products:

 i. Acuity Brands: nLight – Cat 5 wiring

ii. Wattstopper Digital Lighting Management – Cat 5 wiring

iii. Crestron (Athletics only)

5. Wireless Systems:

a. Acceptable Products:

i. Acuity Brands: nLight Air

ii. Crestron

iii. Audacy

6. Panel–based Time Control Processor (brain of the Relay Panel):

a. The clock module shall provide astronomic capabilities, time delays, blink warning, daylight savings and holiday functions and shall include a back–up for the clock function and EEPROM for program retention.

b. Lighting control panels shall have remote monitoring and programming capabilities via BacNet IP protocol.

c. Provide data outlet at each lighting control panel for connection to CSU Utilities Server.

d. Acceptable Products:

i. Acuity Brands: LC&D GR 2400

ii. Wattstopper: Digital Lighting Management

iii. Crestron

7. Small Site Lighting Control Panel (Astronomic Time Clock/ Photocell):

a. Acceptable Products:

i. Intermatic

ii. Tork

iii. Or approved equal

8. Site Lighting Control Panel with Wireless Dimming:

a. Acceptable Products:

i. Hubbell WiScape

ii. Acuity Brands: nLight

iii. Or approved equal

9. Relay Panels:

a. Acceptable Products:

i. Acuity Brands: LC&D GR2400 & Blue Box

ii. Wattstopper: Digital Lighting Management

iii. Crestron

10. Daylighting Controls:

a. Provide daylight controls to control lighting as indicated on plans.

i. Daylight zones shall be designed such that lights in the daylight zone are controlled independently of general lighting

b. Maintain a specified foot candle level based on the contribution of natural and artificial light.

c. Daylight zones under skylights shall be controlled separately of daylight zones adjacent to vertical fenestrations.

d. Any tools or software required to adjust the System shall be provided as part of the System package.

i. This excludes foot–candle meters.

11. Dimming Panels (for use in large classrooms and conference rooms, auditoriums, etc.):

a. Dimming panels shall be compatible with the lamp source they are dimming. LEDs are especially sensitive to incompatibilities.

i. LED fixtures with integral dimmers shall not be dimmed from a dimming panel.

b. All dimmers shall be de–rated to no more than 80% of rated capacity.

c. Rooms with indication of preset stations shall be provided with engraved presets, to be approved by the Project Representative, or touch screens with the ability to create and label presets.

i. Preset creation shall be limited to select users and password protected.

d. Conference rooms and classrooms over 500 square feet shall include the ability to communicate with the Audio Visual System.

e. Acceptable Products:

i. Acuity Brands: Fresco

ii. Crestron

iii. Philips Strand

PART 3  EXECUTION

A. Lighting Control Method by Room Application – In general, the following room types shall be controlled as follows:

1. Private Office:

a. Manual dimming and control by the entrance.

b. Standalone vacancy sensor (Manual On, Auto Off), typically dual technology, located at the switch or preferably within the light fixture itself for improved functionality.

2. Open Office:

a. Manual control by the entrances, grouping the lights into separate zones.

b. Ceiling or fixture–embedded vacancy sensors to turn lights off, typically dual technology.

3. Public Restrooms:

a. Standalone occupancy sensor (Auto On, Auto Off), typically ultrasonic

4. Conference Rooms:

a. Manual dimming and control by entrance, with control zones for presentation purposes, as necessary.

b. Ceiling or fixture–embedded vacancy sensors to turn lights off, typically dual technology.

5. Classrooms:

a. Manual dimming and control by entrance.

b. AV pedestal manual dimming and control with scene selection, as necessary.

c. Minimum two lighting control zones – one at the teaching wall, one at the student seating area.

d. Ceiling or fixture–embedded vacancy sensors to turn lights off, typically dual technology.

6. Lobbies, Foyers and Entryways:

a. Ceiling or fixture–embedded occupancy sensor (Auto On, Auto Off)

b. Time schedule operated lighting as required by end user.

7. Breakrooms:

a. Manual control by the entrance

b. Ceiling vacancy sensor to turn lights off, typically dual technology. 

8. Dining Halls:

a. Consider scheduled programmable On–times with required Manual control to initiate program (this would prevent lights from coming on during a Holiday Break when Dining Hall is not in use.) 

b. Consider separating Food Prep, Serving, and dining areas for more control. 

c. Locate manual wall stations at convenient entry points to easily initiate the programmed On–times, and manually override the Off time if the cleaning crew were to finish early. 

9. Commercial Kitchens:

a. Manual On, Manual Off 

10. Corridors

a. Ceiling or fixture–embedded occupancy sensor (Auto On, Auto Off)

b. Use of night lights shall be limited. Not every emergency light shall be a night light.

11. Stairwells

a. Ceiling or fixture–embedded occupancy sensor that will dim down to 10% when unoccupied.

b. Upon loss of power, light fixtures shall turn on to full bright.

12. Laboratories:

a. Manual On, Manual Off, Dimming permissible

13. Mechanical/Electrical Rooms:

a. Manual On, Manual Off

14. Custodial Closets:

a. Vacancy sensor (Manual On, Auto Off)

15. Storage Rooms:

a. Vacancy sensor (Manual On, Auto Off)

16. Library Stacks and Warehouse Storage Areas:

a. Fixture embedded occupancy sensors for Auto On, Auto Off.

17. Residential Sleep and Dwelling Units

a. Manual on, Manual off with dimming capabilities

18. Study Room

a. Standalone vacancy sensor (Manual On, Auto Off), typically dual technology

b. If the switch is not readily accessible by the entrance, an occupancy sensor is acceptable.

19. Parking Garages:

a. Garage lighting shall be reduced to 30% when no activity is detected for 20 minutes. Fixtures with integral occupancy sensors are recommended.

b. Daylight transition zone lighting shall be controlled separately by time clock such that these lights are on during the day and off at night.

c. Light fixtures adjacent to the perimeter of an open structure garage may be controlled with automatic daylight harvesting controls.

20. Exterior Site Lighting:

a. See Section 26 56 00 Exterior Lighting for Exterior Lighting Control section.

PART 4  TESTING AND COMMISSIONING

A. Projects shall include a Manufacturer Authorized Service Technician to meet the Contractor on–site prior to installation of the System.

1. The Manufacturer authorized technician shall provide a full set of Lighting Control Drawings and review device placement, switch locations, wiring requirements and any other information critical to the installation of the System.

B. Functional testing shall be commissioned by the Manufacturer’s factory Authorized Technician or an Independent Consultant authorized by Manufacturer to work on Lighting Control System.

1. Project Representative from Operations and Maintenance shall be present at Contractor functional testing.

C. Documentation shall be provided to the Project Representative certifying that the installed lighting controls perform in accordance with the design.

D. Provide documentation for all daylight harvesting zones including desk top readings with lights off, lights at full and lights under daylight harvesting control.

1. Include time, date and general weather conditions (e.g. full sun, cloudy) include information on the testing device, foot–candle meter, etc. used.

2. All testing and verification shall be conducted by Factory Trained Technician.

a. Test reports shall be signed by the Technician.

E. The following shall be verified:

1. Occupancy and daylight sensors are located, installed and adjusted as intended by the factory and the Construction Documents.

2. The sensors and relay panels interact as a complete and operational System to meet the design intent.

3. Programmable schedule controls have been programmed to the building representative’s satisfaction.

4. Placement and sensitivity of adjustments for photo sensor controls reduce electric light based on the amount of usable daylight in the space.

5. The Manufacturer shall provide a factory authorized technician to train Project Representative’s personnel with the operation, use, adjustment and problem–solving diagnosis of the occupancy sensing devices and Systems.

F. Provide an additional follow–up programming session within three months after the initial programming.

G. Provide accurate As–Built Drawings reflecting the latest programming requirements.