Multi-Zone kWh = kWhcool + kWhheat kWhheat = [CAPY/1000 X (1/HSPFb - 1/HSPFe ) X EFLH X LF]ZONE1 + [CAPY/1000 X (1/HSPFb - 1/HSPFe ) X EFLH X LF]ZONE2 + [CAPY/1000 X (1/HSPFb - 1/HSPFe ) X EFLH X LF]ZONEn kWhcool = [CAPY/1000 X (1/SEERb 1/SEERe ) X EFLH X LF]ZONE1 + – [CAPY/1000 X (1/SEERb 1/SEERe ) X EFLH X LF]ZONE2 + – [CAPY/1000 X (1/SEERb 1/SEERe ) X EFLH X LF]ZONEn – Note, that if the customer did not have a cooling system installed prior, there may be a negative cooling energy impact. kWpeak = [CAPY/1000 X (1/EERb 1/EERe ) X CF]ZONE1 + – [CAPY/1000 X (1/EERb 1/EERe ) X CF]ZONE2 + [CAPY/1000 – X (1/EERb 1/EERe ) X CF]ZONEn – Definition of Terms CAPY = The capacity of the indoor unit is given in BTUH EFLH = Equivalent Full Load Hours If the unit is installed as the – primary heating system; that is, in a living room or large room of the house, the EFLH will be equivalent to those for a central heating system. If the unit is installed as a secondary heating system, the EFLH will be equivalent to a room unit (ie. for cooling, equivalent to a room AC system). HSPFb = Heating efficiency of baseline unit HSPBe = Efficiency of the installed DHP SEERb = Cooling efficiency of baseline unit SEERe = Efficiency of the installed DHP EERb = The Energy Efficiency Ratio of the baseline unit EERe = The Energy Efficiency Ratio of the efficient unit LF = Load factor
Multi-Zone kWh = kWhcool + kWhheat kWhheat = [CAPY/1000 X (1/HSPFb - 1/HSPFe ) X EFLH X LF]ZONE1 + [CAPY/1000 X (1/HSPFb - 1/HSPFe ) X EFLH X LF]ZONE2 + [CAPY/1000 X (1/HSPFb - 1/HSPFe ) X EFLH X LF]ZONEn kWhcool = [CAPY/1000 X (1/SEERb – 1/SEERe ) X EFLH X LF]ZONE1 + [CAPY/1000 X (1/SEERb – 1/SEERe ) X EFLH X LF]ZONE2 + [CAPY/1000 X (1/SEERb – 1/SEERe ) X EFLH X LF]ZONEn Note, that if the customer did not have a cooling system installed prior, there may be a negative cooling energy impact. kWpeak = [CAPY/1000 X (1/EERb – 1/EERe ) X CF]ZONE1 + [CAPY/1000 X (1/EERb – 1/EERe ) X CF]ZONE2 + [CAPY/1000 X (1/EERb – 1/EERe ) X CF]ZONEn Definition of Terms CAPY = The capacity of the indoor unit is given in BTUH EFLH = Equivalent Full Load Hours – If the unit is installed as the primary heating system; that is, in a living room or large room of the house, the EFLH will be equivalent to those for a central heating system. If the unit is installed as a secondary heating system, the EFLH will be equivalent to a room unit (ie. for cooling, equivalent to a room AC system). HSPFb = Heating efficiency of baseline unit HSPBe = Efficiency of the installed DHP SEERb = Cooling efficiency of baseline unit SEERe = Efficiency of the installed DHP EERb = The Energy Efficiency Ratio of the baseline unit EERe = The Energy Efficiency Ratio of the efficient unit LF = Load factor
Proposed_2011_TRM_Update.docx