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PDFWAC 51-11C-40803

Section C408.3Lighting system commissioning.

C408.3 Electrical power and lighting systems commissioning. Electrical power and lighting systems subject to Section C405 shall be included in the commissioning process required by Section C408.1. The commissioning process shall minimally include all energy code requirements for which the code requires specific daylight responsive controls, "control functions," and where the code states that equipment shall be "configured to" perform specific functions.
Lighting control systems are exempt from the commissioning process in buildings where:
1. The total installed lighting load is less than 20 kW.
2. Where the lighting load controlled by occupancy sensors or automatic daylighting controls is less than 10 kW.
C408.3.1 Functional testing. Prior to passing final inspection, the certified commissioning professional shall provide evidence that the lighting control systems have been tested to ensure that control hardware and software are calibrated, adjusted, programmed and in proper working condition in accordance with the construction documents and manufacturer's instructions. Written procedures which clearly describe the individual systematic test procedures, the expected systems' response or acceptance criteria for each procedure, the actual response or findings, and any pertinent discussion shall be followed. Functional testing shall comply with Section C408.3.1.1 through C408.3.1.3 for the applicable control type.
C408.3.1.1 Occupant sensor controls. Where occupancy sensors are provided, the following procedures shall be performed:
1. Certify that the occupancy sensor has been located and aimed in accordance with manufacturer recommendations.
2. For projects with seven or fewer occupancy sensors, each sensor shall be tested. For projects with more than seven occupancy sensors, testing shall be done for each unique combination of sensor type and space geometry. Where multiples of each unique combination of sensor type and space geometry are provided, no fewer than the greater of one or 10 percent of each combination shall be tested unless the code official or design professional requires a higher percentage to be tested. Where 30 percent or more of the tested controls fail, all remaining identical combinations shall be tested.
3. For each occupancy sensor to be tested, verify the following:
3.1. Where occupancy sensors include status indicators, verify correct operation.
3.2. The controlled lights turn off or down to the permitted level within the required time.
3.3. For auto-on occupancy sensors, the lights turn on to the permitted level within the required time.
3.4. For manual on sensors, the lights turn on only when manually activated.
3.5. The lights are not incorrectly turned on by movement in adjacent areas or by HVAC operation.
C408.3.1.2 Time switch controls. Where automatic time switches are provided, the following procedures shall be performed:
1. Confirm that the automatic time switch control is programmed with accurate weekday, weekend and holiday schedules, and set-up and preference program settings.
2. Provide documentation to the owner of automatic time switch programming, including weekday, weekend, holiday schedules and set-up and preference program settings.
3. Verify the correct time and date in the time switch.
4. Verify that any battery backup is installed and energized.
5. Verify that the override time limit is set to not more than two hours.
6. Simulate occupied conditions. Verify and document the following:
6.1. All lights can be turned on and off by their respective area control switch.
6.2. The switch only operates lighting in the enclosed space in which the switch is located.
7. Simulate unoccupied condition. Verify the following:
7.1. All nonexempt lighting turns off.
7.2. Manual override switch allows only the lights in the enclosed space where the override switch is located to turn on or remain on until the next scheduled shut off occurs.
8. Additional testing as specified by the certified commissioning professional.
C408.3.1.3 Daylight responsive controls. Where daylight responsive controls are provided, the following procedures shall be performed:
1. All control devices have been properly located, field-calibrated and set for accurate setpoints and threshold light levels.
2. Daylight controlled lighting loads adjusted to light level setpoints in response to available daylight.
3. The locations of calibration adjustment equipment are readily accessible only to authorized personnel.
C408.3.2 Documentation requirements. The construction documents shall specify that documents certifying that the installed lighting controls meet documented performance criteria of Section C405 be provided to the building owner within 90 days from the date of receipt of the certificate of occupancy.
[Statutory Authority: RCW 19.27A.025, 19.27A.160, and 19.27.074. WSR 16-03-072, § 51-11C-40803, filed 1/19/16, effective 7/1/16. Statutory Authority: RCW 19.27A.025, 19.27A.045, and 19.27.074. WSR 13-23-096, § 51-11C-40803, filed 11/20/13, effective 4/1/14. Statutory Authority: RCW 19.27A.020, 19.27A.025 and chapters 19.27 and 34.05 RCW. WSR 13-04-056, § 51-11C-40803, filed 2/1/13, effective 7/1/13.]
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