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CHAPTER9 <br />ADDITIONAL SINGLE-FAMILY RESIDENTIAL <br />ENERGY EFFICIENCY REQUIREMENTS <br />2009 Edition <br />C(l03-0)-� <br />901 Additional Residential Energy Efficiency Requirements. Dwelling nails permitted under this Code shall col IPly will, all <br />provisions of Chapter 5 of tllis Code and develop one credit fronl'I'able 9-1. <br />EXCEPTION: Buildings complying using Chnpter 4 lluiidiug Ucsign by Systems Analysis slmll elect this Provision of this section by <br />demonstrating tint the proposed building energy use is 16 percent less than the large( building energy use. <br />TABLE 9-1 <br />ENERGY CREDITS (DEBITS) <br />OPTION <br />DESCRIPTION <br />CREDIT(S) <br />to <br />HIGH EFFICIENCY IIVAC HQUIPMLWl' 1: <br />1.0 <br />Gas, propane or oil -fired funlace or boiler will minimum AFUE of <br />92%, <br />or <br />Air-sollrco llcal )hint) With laillllillllll I ISPI' Of 8.5. <br />lb <br />111011 EFFICIENCY IIVAC EQUIPMENT 2: <br />2.0 <br />Closed -loop ground source heat plant); <br />with a ❑liniloo n COP of 3.3. <br />I <br />IlIG1I EFFICIENCY IIVAC EQUIP MEN I' 3: <br />1.0 <br />DUCI'LHSS SPLIT SYSTEM ITHA'1' PUMPS, ZONAL, <br />CONTROL: <br />In [ionic where the primary space beatblg system is venal electric <br />heating, a ductless heal pump system shall be installed and provide <br />llcatln , to at icasl on 7onc of the h0lislll llllit. <br />2 <br />I.IIGI I EFPICIIiNCY (IVAC DISI'RIBITI'ION SYSTEM:t <br />1.0 <br />All healing and cooling s)'sIc111 COIIlpOnelts Installed inside the <br />conditioned space. All combustion equipment shall be direct vent <br />or scaled combustion. <br />Laediag system conlponenls in conditioned crawl spaces is not <br />Permitted under this option. <br />Electric resistance kcal is not permitted under (his option. <br />Direct combustion heading equipment with AFUE less than 80% is <br />not permitted under this o llicn. <br />3a <br />EPPICII:NI' BUILDING ENVELOPE l: <br />0.5 <br />Prescriptive compliance is based on Table 6.1, Option III will, Idle <br />following modifications: Window U = 0.28 Boor R-38, slab on <br />grade R-10 full, below grade slab R-10 full. <br />nr <br />Component performance compliance: Reduce Iho To et UA from <br />'fable 5-1 by 5%, as determined msiu li UA'1110N I. <br />3b <br />EI7PICI1iNT BUILDING ENVELOPE 2: <br />1.0 <br />Prescriptive, coulplimnce is based on Tahlc 6-1, Option IT with the <br />following modifications: Window U = 0.25 and wall R-21 plus R- <br />4 and R-38 floor, slab on grade IW O fill), below grade slab R-i0 <br />lidd, and R-21 plus R-5 bellow grade basemen( walls. <br />or <br />Coulponcat performance coolpli:mce: Reduce the Target UA from <br />Table S.I b • 15%. as determined using EQUATION I.' <br />41 <br />Effective July 1, 2010 <br />