9.6.3 Additional Interior Lighting Power Using Nonmandatory Controls
An additional lighting power allowance shall be permitted for space types with nonmandatory controls installed as identified in Table 9.6.3 when all mandatory controls are used according to Section 9.4. This allowance is added to the interior lighting power allowance and is calculated as follows:
|Lighting Power Under Control||=||the total input watts of all lamps being controlled using the control method indicated|
|Control Factor||=||the value given in Table 9.6.3 for the corresponding space type and control method|
|Additional Control Method (in Addition to Mandatory Requirements)||Space Type|
|Open Office||Private Office||Conference Room, Meeting Room, Classroom (Lecture/Training)||Retail Sales Area||Lobby, Atrium, Dining Area, Corridors/Stairways, Gym/Pool, Mall Concourse, Parking Garage|
|Manual, continuous dimming control or programmable multilevel dimming control||0.05||0.05||0.10||0.10||0|
|Programmable multilevel dimming control using programmable time scheduling||0.05||0.05||0.10||0.10||0.10|
|Occupancy sensors controlling the downlight component of workstation specific luminaires with continuous dimming to off capabilities||0.25a||0||0||0||0|
|Occupancy sensors controlling the downlight component of workstation specific luminaires with continuous dimming to off operation, in combination with personal continuous dimming control of downlight illumination by workstation occupant||0.30a,b||0||0||0||0|
|Automatic continuous daylight dimming in secondary sidelighted areas||0.10c||0.10c||0.10c||0.10c||0.10c|
- Control factor is limited to workstation-specific luminaires in partitioned single occupant work spaces contained within an open office environment (i.e. direct-indirect luminaires with separately controlled downlight and uplight components, with the downward component providing illumination to a single occupant in an open plan workstation). Within 30 minutes of the occupant leaving the space, the downward component shall continuously dim to off over a minimum of two minutes. Upon the occupant entering the space, the downward component shall turn on at the minimum level and continuously raise the illumination to a preset level over a minimum of 30 seconds. The uplight component of workstation specific luminaire shall comply with Section 126.96.36.199(h) (automatic full off).
- In addition to the requirements described in footnote (a), the control shall allow the occupant to select their preferred light level via a personal computer, handheld device, or similarly accessible device located within the workstation.
- Control factors may not be used if controls are used to satisfy exceptions to Section 188.8.131.52.3