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<br />-
<br />
<br />SUMMER POINT MULTIPJ,.IERS (SPM)
<br />
<br />. "
<br />CLIMATE ZONES 4 5 6
<br />
<br />6A-1 SUMMER OVERHANG FACTORS ISO =l FOR SINGLE AND DOUBLE PANE GLASS.
<br />~r OH RATIO ,00-,11 ,12-,17 ,18-,26 ,27-,35 ,36-,46 .47-,57 ,58- .70 ,71-,83 ,84-1.18 1.19.1.72 1,73-2.73 2,74+
<br />N 1.00 ,94 ,91 ,87 ,83 ,79 ,75 .72 ,69 ,62 ,56 ,50
<br />NE/NW 1.00 ,94 ,91 ,85 ,79 ,72 ,68 ,63 ,58 ,50 ,40 ,36
<br />I-a: EfIN 1,00 ,95 ,92 ,85 ,78 ,70 ,64 ,58 ,52 ,42 ,33 ,26
<br />~o
<br />Bil SElSW 1.00 .93 ,90 .81 .72 ,62 ,55 ,49 .42 ,33 ,27 ,22
<br />S 1.00 ,91 .87 ,77 ,67 ,57 ,50 .45 ,39 ,32 ,28 ,25
<br />('II-! I ~M~TI-!. nft 1 ft 11j,ft 2ft 'HI ':1'/, ft .1V,ft "'J,ft f;1J,ft Q1j,ft Uft ?nft..
<br /> 'To select bv Overhana Lenath no Dart of Dlass shall be more than 8 It, below the Dverhann.
<br />
<br />6A.2 WALL SUMMER POINT MULTIPLIERS SPM
<br />
<br />FRAME
<br />
<br />WOOD
<br />EXT ADJ
<br />6.4 2,2
<br />2,3 ,8
<br />1.9 ,7
<br />1.7 .6
<br />1.0 ,3
<br />,6 .2
<br />
<br />R.VALUE
<br />0-6,9
<br />7-10,9
<br />11-12,9
<br />13-18,9
<br />19-25,9
<br />26&U
<br />
<br />STEEL
<br />EXT ADJ
<br />8,9 2,9
<br />4,1 1,3
<br />3,0 1.0
<br />2,8 0,9
<br />2.4 0,8
<br />1.3 0.4
<br />
<br />
<br />CONCRETE BLOCK'
<br />INT. INSULATION
<br />NORMAL wr.
<br />EXT ADJ
<br />2,5 ,9
<br />1.4 .7
<br />1,0 ,6
<br />,8 .4
<br />,4 ,3
<br />,2 ,2
<br />.1 ,1
<br />
<br />
<br />6A.3 DOOR SUMMER POINT MULTIPLIERS
<br />DOOR TYPE EXTERIOR ADJACENT
<br />WOOD 7.2 2.4
<br />INSULATED 4.8 1,6
<br />
<br />SPM)
<br />
<br />6A-4 CEILING SUMMER POINT MULTIPLIERS lSPMI
<br />UNDER ATTIC SINGLE ASSEMBLY CONCRETE DECK ROOF
<br />R-V ALUE SPM R-VALUE SPM CEILING TYPE
<br />19-21.9 1.1 10-10,9 3.0 R.VALUE DROPPED EXPOSED
<br />22-25,9 .9 11-12.9 2,7 10-13,9 3,0 3,3
<br />26-29.9 ,7 13-18,9 2.4 14-20,9 2,0 2,1
<br />30-37,9 .6 19-25,9 1,8 21 &Uo 1.4 1.3
<br />38 & Uo .4 26-29,9 1.1
<br /> ':In Rolin nQ
<br />
<br />
<br />RAISED WOOQ2
<br />POST OR PIER STEM WALL wI UNDER
<br />CONSTRUCTION FLOOR INSULATION
<br />SPM SPM
<br />0,9 -li8
<br />-1.1 -:2,8
<br />-1.0 -:2,2
<br />
<br />ADJ~CENT
<br />
<br />SPM
<br />5,3
<br />2,1
<br />1.8
<br />
<br />6A-6 INFILTRATION SUMMER POINT MULTIPLIERS (SPM)
<br />INFILTRATION PRACTICE SPM
<br />SEE TABLE 6A.21
<br />PRACTICE #1 13,8
<br />PRACTICE #2 10.9
<br />
<br />6A.7 DUCT MULTIPLIERS DM
<br />
<br />SUPPLY DUCTS IN
<br />CONDITIONED SPACE'
<br />
<br />
<br />RETURN DUCTS
<br />IN UNCONDITIONED SPACE
<br />1,14
<br />1,10
<br />1.09
<br />1.10
<br />1.07
<br />
<br />RETURN DUCTS
<br />IN CONDITIONED SPACE
<br />1,10
<br />1,07
<br />1.06
<br />1.00
<br />1.00
<br />
<br />SUPPLY DUCTS IN
<br />UNCONDITIONED SPACE
<br />
<br />6A-8 COOLING SYSTEM MULTIPLIERS lCSMl
<br />SYSTEM TYPE COOLING SYSTEM MULTIPLIERS ICSMI
<br />Central Units (SEER) Ratina 7.5-7,9 8,0-8.4 8,5-8,8 8,9-9.4 9.5-9,9 10,0-10.4 10,5-10.9 11.0-11.4 11,5-11,9 12,0-12,4
<br />CSM .45 .43 ,40 .38 .36 ,34 ,32 .31 ,30 ,28
<br />PTAC & Room Units (EER) Ratina 12,5-12,9 13,0-13.4 13.5-13.9 14,0-14,4 14,5-14,9 15,0-15,4 15,5-15,9 16,0-16.4 16,5-16,9 17,0-17.4 17.5 & Uo
<br />CSM ,27 ,26 .25 ,24 ,24 .23 ,22 ,21 .21 ,20 .19
<br />MINIMUMS: CENTRAL UNITS-AIR COOLED SPLIT SYSTEM 10.0 SEER. SINGLE PKG. 9.7 SEER, GROUND WATER HEAT PUMP 11.0 EER. PTAG--SEE TABLE 6-2
<br />
<br />6A-9 HOT WATER MULTIPLIERS IHWMl
<br />SYSTEM TYPE HOT WATER MULTIPLIERS lHWMI
<br />Electric Resistance EF .80-,81 .82-.83 ,84-.85 .86-,87 .88-,90 .91-,93 ,94-.96 .97 & Uo
<br /> HWM 3879 3785 3695 3609 3527 3411 3302 3200
<br />Natural Gas EF ,43-.47 .48-.49 I .50-.51 ,52-,53 .54-,55 .56-.57 ,58-,59 ,60-,61 ,62-,63 .64-,65 ,66 & Uo
<br /> HWM 2974 2664 I 2558 2459 2368 2284 2205 2132 2063 1998 1938
<br />LP Gas HWM 3638 3259 I 3129 3009 2897 2794 2697 2607 2523 2444 2370
<br />
<br />, FOR MULTIPLIERS FOR OTHER TYPES OF CONCRETE BLOCK CONSTRUCTION SEE SECTION 2.1 OF APPENDIX C. 2 MULTIPLIERS FOR OTHER TYPES OF RAISED WOOD ASSEMBLIES SEE
<br />SECTION 3.1 OF APPENDIX C. 3 DUCTS IN CONDITIONED SPACE NEED TO BE INSULATED ONLY TO THE R-VALUE NECESSARY TO PREVENT CONDENSATION.
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