Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
Anna,
The formula eQuest uses is the following:
EER to EIR =(1/(EER)-0.012167)/((1/3.413)+0.012167) COP to HEIR =(1/(COP3.413)-0.012167)/(1/3.413 + 0.012167) HSPF to HEIR = (1/((HSPF0.28+1.13)*3.413)-0.012167)/((1/3.413)-0.012167)
This is an estimation the software makes in order to subtract the % of the EER that it assumes includes the fan power in the efficiency of just the condenser.
