For free running mode occupied timesteps:
- CO2 maximum daily average (<1500ppm)
Average CO2 all occupied timesteps per day Jan-Dec inclusive.
Find max average day.
Test max average day against threshold.
- Peak (<2000ppm consecutive 20 mins/day*)
Peak CO2 all occupied 20 min chunks Jan-Dec inclusive.
Find max peak.
Test max peak against relevant threshold.
- And achieve for the majority of the time:
New build 1200 PPM (800 ppm above OA)
Refurb 1750 PPM (1350ppm above OA)
Average CO2 all occupied timesteps Jan-Dec inclusive.
Test average against relevant threshold.
For mechanically ventilated / cooling mode occupied timesteps:
- CO2 maximum daily average (<1000ppm)
Average CO2 all occupied timesteps per day Jan-Dec inclusive.
Find max average day.
Test max average day against threshold.
- Peak (<1500ppm consecutive 20 mins/day*)
Peak CO2 all occupied 20 min chunks Jan-Dec inclusive.
Find max peak.
Test max peak against relevant threshold.
*The max 20 mins test requires Apachesim to be set with a 10-minute simulation timestep.