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• <br /> TABLE 406.3(continued) <br /> ENERGY CREDITS <br /> CREDIT(S) <br /> OPTION DESCRIPTION <br /> All Other Group R-2 <br /> 2..2 Compliance based on Section R402.4.1.2: 7 15 <br /> NXo Reduce the tested air leakage to 2.0 air changes per hour maximum at 50 <br /> Pascals <br /> or <br /> For R-2 Occupancies.optional compliance based on Section R402.4.1.2: <br /> Reduce the tested air leakage to 0.25 cfmlft2 maximum at 50 Pascals <br /> and <br /> All whole house ventilation requirements as determined by Section <br /> M1507.3 of the International Residential Code or Section 403.8 of the <br /> International Mechanical Code shall be met with a heat recovery ventilation <br /> system with minimum sensible heat recovery efficiency of 0.65. <br /> To qualify to claim this credit,the building permit drawings chat specify the <br /> option being selected and shall specify the maximum tested building air <br /> • leakage and shall show the heat recovery ventilation system. <br /> 2.3 Compliance based on Section R402.4.1.2: 1.5 2.0 <br /> Reduce the tested air leakage to 1.5 air changes per hour maximum at 50 <br /> Pascals <br /> or <br /> For R-2 Occupancies,optional compliance based on Section R402.4.1.2: <br /> Reduce the tested air leakage to 0.25 cfmlft2 maximum at 50 Pascals <br /> and <br /> All whole house ventilation requirements as determined by Section <br /> M1507.3 of the International Residential Code or Section 403.8 of the <br /> international Mechanical Code shall be met with a heat recovery ventilation <br /> system with minimum sensible heat recovery efficiency of 0.75. <br /> To qualify to claim this credit,the building permit drawings shall specify the <br /> option being selected and shall specify the maximum tested building air <br /> leakage and shall show the heat recovery ventilation system. <br /> 2.4 Compliance based on Section R402.4.1.2: 2.0 2.5 <br /> Reduce the tested air leakage to 0.6 air changes per hour maximum at 50 <br /> Pascals <br /> or <br /> For R-2 Occupancies,optional compliance based on Section R402.4.1.2: <br /> Reduce the tested air leakage to 0.15 cfmtft2 maximum at 50 Pascals <br /> and <br /> All whole house ventilation requirements as determined by Section <br /> M1507 3 of the Intern:Sonai Residential Code or Section 403.8 of the <br /> International Mechanical Code shall be met with a heat recovery ventilation <br /> system with minimum sensible heat recovery efficiency of 0.80.Duct <br /> installation shall comply with Section R403.3.7. <br /> To qualify to claim this credit,the building permit drawings shall specify the <br /> option being selected and shall specify the maximum tested building air <br /> leakage and shall show the heat recovery ventilation system. <br /> RE-44 2016 Waehingten State Ene y Code <br />