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// CODE SNIPPET

A5.209.1.8 Multilevel Astronomical Time-Switch Controls

California Green Building Standards Code 2019 > A6.1 — Voluntary Standards for Health Facilities [OSHPD 1, 2 & 4] > A5.209 [OSHPD 1, 2 & 4] Lighting > A5.209.1 Lighting Control Devices, > A5.209.1.8 Multilevel Astronomical Time-Switch Controls
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Multilevel astronomical time-switch controls used to control lighting in daylit zones shall:
  1. Contain at least two separately programmable steps per zone that reduces illuminance in a relatively uniform manner as specified in Section A5.209.2.2; and
  2. Have a separate offset control for each step of 1 to 240 minutes; and
  3. Have sunrise and sunset prediction accuracy within +/- 15 minutes and timekeeping accuracy within 5 minutes per year; and
  4. Store astronomical time parameters (used to develop longitude, latitude, time zone) for at least 7 days if power is interrupted; and
  5. Display date/time, sunrise and sunset and switching times for each step; and
  6. Have an automatic daylight savings time adjustment; and
  7. Have automatic time switch capabilities specified in Section A5.209.1.3.

Related Code Sections


A5.209.1.8 — Voluntary Standards for Health Facilities [OSHPD 1, 2 & 4], Multilevel Astronomical Time-Switch Controls
Multilevel astronomical time-switch controls used to control lighting in daylit zones shall: Contain at least two separately programmable steps per ...
California Green Building Standards Code 2016 > A6.1 — Voluntary Standards for Health Facilities [OSHPD 1, 2 & 4] > A5.209 [OSHPD 1, 2 & 4] Lighting > A5.209.1 Lighting Control Devices, > A5.209.1.8 Multilevel Astronomical Time-Switch Controls
A5.209.1.8 — Voluntary Standards for Health Facilities [OSHPD 1, 2 & 4], Multilevel Astronomical Time-Switch Controls
Multilevel astronomical time-switch controls used to control lighting in daylit zones shall: Contain at least two separately programmable steps per ...
California Green Building Standards Code 2019 > A6.1 — Voluntary Standards for Health Facilities [OSHPD 1, 2 & 4] > A5.209 [OSHPD 1, 2 & 4] Lighting > A5.209.1 Lighting Control Devices, > A5.209.1.8 Multilevel Astronomical Time-Switch Controls
Section 110.9 All Occupancies—Mandatory Requirements for the Manufacture, Construction and Installation of Systems, Equipment and Building Components, Mandatory Requirements for Lighting Control Devices and Systems, Ballasts and Luminaires
requirements for astronomical time-switch control devices in the Title 20 Appliance Efficiency Regulations. Multilevel astronomical time-switch ...
California Energy Code 2016 > 2 All Occupancies—Mandatory Requirements for the Manufacture, Construction and Installation of Systems, Equipment and Building Components > 110.9 Mandatory Requirements for Lighting Control Devices and Systems, Ballasts and Luminaires
A5.209.2.3.2.2 — Voluntary Standards for Health Facilities [OSHPD 1, 2 & 4],
and all general lighting in the skylit area is controlled by a multilevel astronomical time switch that meets the requirements of Section A5.209.1.8 ...
California Green Building Standards Code 2019 > A6.1 — Voluntary Standards for Health Facilities [OSHPD 1, 2 & 4] > A5.209 [OSHPD 1, 2 & 4] Lighting > A5.209.2 Indoor Lighting Controls > A5.209.2.3 Daylight Areas > A5.209.2.3.2 > A5.209.2.3.2.2
Section A5.505 — Voluntary Standards for Health Facilities [OSHPD 1, 2 & 4], [OSHPD 1, 2 & 4] Indoor Moisture Control
Interior Photosensors. □ □    A5.209.1.8 Multilevel astronomical time-switch controls. □ □    A5.209.1.9 Outdoor ...
California Green Building Standards Code 2016 > A6.1 — Voluntary Standards for Health Facilities [OSHPD 1, 2 & 4] > A5.505 [OSHPD 1, 2 & 4] Indoor Moisture Control
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