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Not sure whether this is all water under the bridge but I've found the reported cop to be 1 / ( 1/COPref * EIRfT * EIRfPLR / PLR). I would have thought it would just be 1 / (1/COPref * EIRfT * EIRfPLR). Wish the manual had better definitions of the output variables. Eventually found this answer on the E+ website which straightened me out.
http://energyplus.helpserve.com/Knowledgebase/Article/View/61/25/eir-chiller-power-calculation
Not sure whether this is all water under the bridge but I've found the reported cop to be 1 / ( 1/COPref * EIRfT * EIRfPLR / PLR). I would have thought it would just be 1 / (1/COPref * EIRfT * EIRfPLR). Wish the manual had better definitions of the output variables. Eventually found this answer on the E+ website which straightened me out.variables.
http://energyplus.helpserve.com/Knowledgebase/Article/View/61/25/eir-chiller-power-calculation
Not sure whether this is all water under the bridge but I've found the reported cop to be 1 / ( 1/COPref COP ref * EIRfT * EIRfPLR / PLR). PLR. I would have thought it would just be 1 / (1/COPref COP ref * EIRfT * EIRfPLR). EIRfPLR. Wish the manual had better definitions of the output variables.