Does that mean a dedicated VAV box hooked with any one of the following meets the requirement:
1. Thermostat control
2. Occupancy sensor
3. CO2 sensor
If the answer for option 1 or 2 is yes, then how is it going to modulate HVAC system as per space demand ? because thermostat only senses the temperature and occupancy sensor will only shut off/on the VAV and pump in fresh air as designed. However it will not help in pumping more fresh air if the occupancy increases (I assume that is what the space demand is)
I hope my interpretation is correct ?
Marcus Sheffer
LEED Fellow7group / Energy Opportunities
LEEDuser Expert
5867 thumbs up
February 12, 2013 - 10:42 am
The Bird's Eye View FAQ section above summarizes Interpretations around this issue. Looks like just thermostats do not cut it.
Lavanya Veerappa
MsLEAD Consultancy & Engineering services
7 thumbs up
February 18, 2013 - 1:41 am
When themrostat can meet the space demand by modulating the VAV is there any requriement for other any active control components like occupancy sensor ?
Marcus Sheffer
LEED Fellow7group / Energy Opportunities
LEEDuser Expert
5867 thumbs up
February 18, 2013 - 9:42 am
Suggest you read the interpretations mentioned above (10242 and 5273) then request clarification if necessary. I can't tell if your system meets the criteria outlined in the interpretations based on what you have provided.