Performance Factor of the Baseline Early Replacement: EDC Unit Data Gathering 20 Default = 6.9 HSPFe , Heating Seasonal AEPS Application; Performance Factor of the unit being EDC Data Gathering Data EDC’s installed Gathering HSPFm , Heating Seasonal Performance Factor of the unit 6.9 20 receiving maintenance Coefficient of Performance. AEPS Application; COPg , This is a measure of the efficiency of a None EDC Data Gathering Data EDC’s heat pump Gathering 19 (Engineering Estimate - See , Ground Source Heat Pump GSHPDF None 0.885 System De-rate Factor Performance of Ground Source Heat Pumps) COPsys , Ground Source Heat Pump Variable Calculated Calculated effective system COP GSOP , Factor to determine the HSPF None 3.412 8 of a GSHP based on its COPg GSPK , Factor to convert EERg to the equivalent EER of an air conditioner to None 0.8416 9 enable comparisons to the baseline unit EFDSH , Energy Factor per None 0.17 10, 11 desuperheater EDSH , Fixed savings per kWh/yr Calculated desuperheater 567 EFbase , Energy Factor of Electric None 0.904 Table 241 Water Heater HW , Daily Hot Water Use 50 Table 241 Th , Hot Water Temperature °F 119 Table 241 Tc , Cold Water Temperature °F 55 Table 241 ETDF , Fixed to Demand None 0.00008294 “Energy Table 241 Factor per desuperheater PDSH , Assumed peak-demand kW 0.05 Calculated savings per desuperheater HFS , Assumed heating season kWh 311 16 savings per furnace high efficiency fan CFS , Assumed cooling season kWh 135 17 savings per furnace high efficiency fan PDFS , Assumed peak-demand kW 0.105 18 savings per furnace high efficiency fan
Performance Factor of the Baseline Unit Early Replacement: EDC Data Gathering Default = 6.9 20 HSPFe , Heating Seasonal Performance Factor of the unit being installed EDC Data Gathering AEPS Application; EDC’s Data Gathering HSPFm , Heating Seasonal Performance Factor of the unit receiving maintenance 6.9 20 COPg , Coefficient of Performance. This is a measure of the efficiency of a heat pump None EDC Data Gathering AEPS Application; EDC’s Data Gathering GSHPDF , Ground Source Heat Pump De-rate Factor None 0.885 19 (Engineering Estimate - See System Performance of Ground Source Heat Pumps) COPsys , Ground Source Heat Pump effective system COP Variable Calculated Calculated GSOP , Factor to determine the HSPF of a GSHP based on its COPg None 3.412 8 GSPK , Factor to convert EERg to the equivalent EER of an air conditioner to enable comparisons to the baseline unit None 0.8416 9 EFDSH , Energy Factor per desuperheater None 0.17 10, 11 EDSH , Fixed savings per desuperheater kWh/yr 567 Calculated EFbase , Energy Factor of Electric Water Heater None 0.904 Table 241 HW , Daily Hot Water Use 50 Table 241 Th , Hot Water Temperature °F 119 Table 241 Tc , Cold Water Temperature °F 55 Table 241 ETDF , Fixed “Energy to Demand Factor per desuperheater None 0.00008294 Table 241 PDSH , Assumed peak-demand savings per desuperheater kW 0.05 Calculated HFS , Assumed heating season savings per furnace high efficiency fan kWh 311 16 CFS , Assumed cooling season savings per furnace high efficiency fan kWh 135 17 PDFS , Assumed peak-demand savings per furnace high efficiency fan kW 0.105 18
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