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Ll <br />• <br />Table 406.2 <br />Energy Credits (2015 Code) <br />OPTION <br />DESCRIPTION <br />CREDIT(S) <br />Estimated Cost <br />2c <br />AIR LEAKAGE CONTROL AND EFFICIENT VENTILATION 2c: <br />1.5 <br />Compliance based on Section R402.4.1.2: Reduce the tested air leakage to 1.5 air <br />changes per hour maximum <br />and <br />All whole house ventilation requirements as determined by Section M1507.3 of the <br />International Residential Code shall be met with a heat recovery ventilation system <br />with minimum sensible heat recovery efficiency of 0.85. <br />To qualify to claim this credit, the building permit drawings shall specify the option <br />being selected and shall specify the maximum tested building air leakage and shall <br />show the heat recovery ventilations stem. <br />3a <br />HIGH EFFICIENCY HVAC EQUIPMENT 3a: <br />1.0 <br />Gas, propane or oil -fired furnace with minimum AFUE of 94%, or <br />Gas, propane or oiled -fired boiler with minimum AFUE of 92% <br />To qualify to claim this credit, the building permit drawings shall specify the option <br />being selected and shall specify the heating equipment type and the minimum <br />equipment efficiency. <br />3b <br />HIGH EFFICIENCY HVAC EQUIPMENT 3b: <br />1.0 <br />Air -source heat pump with minimum HSPF of 9.0 <br />To qualify to claim this credit, the building permit drawings shall specify the option <br />being selected and shall specify the heating equipment type and the minimum <br />equipment efficiency. <br />3c <br />HIGH EFFICIENCY HVAC EQUIPMENT 3c: <br />1.5 <br />Closed -loop ground source heat pump; with a minimum COP of 3.3 <br />or <br />Open loop water source heat pump with a maximum pumping hydraulic head of 150 <br />feet and minimum COP of 3.6 <br />To qualify to claim this credit, the building permit drawings shall specify the option <br />being selected and shall specify the heating equipment type and the minimum <br />equipment efficiency. <br />3d <br />HIGH EFFICIENCY HVAC EQUIPMENT 3d: <br />1.0 <br />Ductless Split System Heat Pumps, Zonal Control: In homes where the primary space <br />heating system is zonal electric heating, a ductless heat pump system shall be installed <br />and provide heating to the largest zone of the housing unit. <br />To qualify to claim this credit, the building permit drawings shall specify the option <br />being selected and shall specify the heating equipment type and the minimum <br />equipment efficiency. <br />4 <br />HIGH EFFICIENCY HVAC DISTRIBUTION SYSTEM: <br />1.0 <br />All heating and cooling system components installed inside the conditioned space. <br />This includes all equipment and distribution system components such as forced air <br />ducts, hydronic piping, hydronic floor heating loop, convectors and radiators. All <br />combustion equipment shall be direct vent or sealed combustion. <br />For forced air ducts: A maximum of 10 linear feet of return ducts and 5 linear feet of <br />supply ducts may be located outside the conditioned space. All metallic ducts located <br />outside the conditioned space must have both transverse and longitudinal joints sealed <br />with mastic. If flex ducts are used, they cannot contain splices. Flex duct connections <br />must be made with nylon straps and installed using a plastic strapping tensioning tool. <br />Ducts located outside the conditioned space must be insulated to a minimum of R-8. <br />Locating system components in conditioned crawl spaces is not permitted under this <br />option. <br />Electric resistance heat and ductless heat pumps are not permitted under this option. <br />Direct combustion heating equipment with AFUE less than 80% is not permitted <br />under this option. <br />To qualify to claim this credit, the building permit drawings shall specify the option <br />being selected and shall specify the heating equipment type and shall show the <br />location of the heating and cooling equipment and all the ductwork. <br />