Capcool = Capacity of Air Cooling System (Btuh) Capheat = Capacity of heating system (Btuh) EFLHcool = Cooling equivalent full load hours SEER = Efficiency of cooling equipment EFLHheat = Heating equivalent full load hours TCFM = Conversion from tons of cooling to CFM COP = Efficiency of Heating Equipment DEafter = Distribution energy after duct sealing DEbefore = Distribution energy before duct sealing Table 298: Duct Sealing Values and References – Term Type Value Source CF Fixed 0.70 Table 2-1 CFM50Whole House Variable EDC Data Gathering EDC Data Gathering CFM50Envelope Variable EDC Data Gathering EDC Data Gathering Only 5, 8 SCF Variable Variable 2 Conv Fixed 0.64 3, EDC Data Gathering SLF Variable Default 0.5 or EDC Data Gathering 4, EDC Data Gathering RLF Variable Default 0.25 or EDC Data Gathering EDC Data Gathering Cap Variable EDC Data Gathering 5 TCFM Fixed 400 6, EDC Data Gathering SEER Variable Default 10 SEER or EDC Data Gathering 6, EDC Data Gathering COP Variable Default 2.0 COP or EDC Data Gathering Allentown Cooling = 487 Hours Erie Cooling = 389 Hours Harrisburg Cooling = 551 EFLHcool Default Hours Table 21 Philadelphia Cooling = 591 Hours Pittsburgh Cooling = 432 Hours
Capcool = Capacity of Air Cooling System (Btuh) Capheat = Capacity of heating system (Btuh) EFLHcool = Cooling equivalent full load hours SEER = Efficiency of cooling equipment EFLHheat = Heating equivalent full load hours TCFM = Conversion from tons of cooling to CFM COP = Efficiency of Heating Equipment DEafter = Distribution energy after duct sealing DEbefore = Distribution energy before duct sealing Table 298: Duct Sealing – Values and References Term Type Value Source CF Fixed 0.70 Table 2-1 CFM50Whole House Variable EDC Data Gathering EDC Data Gathering CFM50Envelope Only Variable EDC Data Gathering EDC Data Gathering SCF Variable Variable 5, 8 Conv Fixed 0.64 2 SLF Variable Default 0.5 or EDC Data Gathering 3, EDC Data Gathering RLF Variable Default 0.25 or EDC Data Gathering 4, EDC Data Gathering Cap Variable EDC Data Gathering EDC Data Gathering TCFM Fixed 400 5 SEER Variable Default 10 SEER or EDC Data Gathering 6, EDC Data Gathering COP Variable Default 2.0 COP or EDC Data Gathering 6, EDC Data Gathering EFLHcool Default Allentown Cooling = 487 Hours Erie Cooling = 389 Hours Harrisburg Cooling = 551 Hours Philadelphia Cooling = 591 Hours Pittsburgh Cooling = 432 Hours Table 21
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