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ASHRAE Elevator Ventilation and Cab Lighting

2016 Title 24 CASE Topics

Measure Overview

This measure covers Elevator Lighting and Ventilation requirements for both residential and nonresidential buildings. The proposed Elevator Ventilation and Cab Lighting measure would update Title 24 so the California standards are at least as stringent as the standards in ASHRAE 90.1-2013 Section 10.4.3. According to ASHRAE, the lighting in the cab (not including signals and displays) shall not have an efficacy less than 35 lumens per watt (lpw). Cab ventilation fans for elevators without air conditioning shall not consume over 0.33 watts (W) per cubic feet per minute (cfm) at maximum speed. After being unoccupied at rest with the elevator doors shut for over 15 minutes, cab interior lighting and ventilation shall be de-energized until required for operation. In order to promote the use of more efficient lighting, the Statewide CASE Team is proposing that elevators achieve a lighting power density (LPD) of 0.6 watts per square foot (W/SF).

Stakeholder Meeting

Several stakeholder meetings and CEC staff workshops were held regarding the Nonresidential HVAC Economizer Modifications building energy efficiency topic. The list of past meetings and hearings can be found here. If you would like to receive email updates on this CASE topic, click the link below.


  1. Final CASE Report