Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
look at your electrical end-uses on a timestep basis, particularly the refrigeration equipment. What refrigeration equipment setup are you using? I have had issues mixing ZoneHVAC:RefrigerationChillerSet with the simplified system available in Refrigeration:CompressorRack. This was EPlus version 8.4. I have not had the chance to create an error report for it yet.
Also, I've experienced negative electricity use in the past with the water to air heat pump model if my refrigeration curve coefficients were not set up properly. I suspect that you have a refrigeration curve in the wrong place, or one of your coefficients is not correct.
