Demand-control ventilation in occupied zones often modulates minimum outdoor air based most directly on which common proxy when approved by the code path?
Choices
- (A) Sump level
- (B) Drywall screw spacing
- (C) CO2 (or other occupancy sensors) in the return/zone, subject to minimum rates and coda
- (D) Panelboard ampacity of lighting
Correct answer: (C)
CO2 (or other occupancy sensors) in the return/zone, subject to minimum rates and coda
Explanation
DCV/IEQ: 62.1+90.1 allowed approaches with CO2-based reset, minimum OA floors.