Hi, I am modeling a building that uses an energy recovery wheel for energy savings.
1)For the Proposed Building:
- The device has two fans, one for the injection of outdoor air into the building and which power I modeled in the Proposed Building as the ventilation fan of the DOAS.
- It also has the exhaust fan for bathroom exhaust, which I modeled as the ventilation reclaim fan power.
2) How do I have to model this two fans in the Baseline?, the corresponding systeme is System 4.
thank you,
Paula
Tyler Thumma
7GroupLEEDuser Expert
60 thumbs up
February 11, 2021 - 2:53 pm
The Baseline would not be modeled with a separate DOAS at all. You would model exhaust fans, but the exhaust fan power is already accounted for in the Baseline fan power allowance from Section G3.1.2.9, so you would need to reduce the supply fan power to account for this to keep the total supply + exhaust power equal to the allowance.
Paula Hernandez
MRS.MPH&H
84 thumbs up
February 12, 2021 - 8:04 am
Thank you Tyler