Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
Assuming you're using a Chiller:Electric:EIR object, are you specifying a Condenser Fan Power Ratio? If so, the condenser fan energy is being added to the total cooling electricity. If the Condenser Fan Power Ratio is zero, the evaporator energy divided by COP should equal the cooling electricity. Try outputting chiller COP and and see if that matches your manual calculation.
I would also suggest using energy variables [J], rather than power variables [W]. The power variables are averaged over your timestep, whereas the energy variables are the total energy accumulated over the timestep.
Output:Variable,*,Chiller Evaporator Cooling Energy,hourly; !- HVAC Sum [J]
Output:Variable,*,Chiller COP,hourly; !- HVAC Average [W/W]
Output:Variable,*,Chiller Part Load Ratio,hourly; !- HVAC Average []
Output:Meter,Cooling:Electricity,hourly;
