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<br />SUMMER POINT MULTIPLIERS (SPM)
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<br />CLIMATE ZONES 4 5 6
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<br />6A.1 SUMMER OYER HANG FACTORS (SO 'J 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: E/W 1.00 ,95 .92 ,85 .78 ,70 .64 .58 .52 ,42 ,33 ,26
<br />filo
<br />ml SE/SW 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 />IH' Oft 1 ft 1% ft 2ft 3ft 3% ft. 4%ft, 5%ft 6'hft, 9'h ft, 14ft, 20ft,+
<br /> 'To select bv Overhano Lenoth, no oart of olass shall be more than 8 ft, below the overhano,
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<br />6A.2 WALL SUMMER POINT MULTIPLIERS SPM
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<br />FRAME
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<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
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<br />R.YALUE
<br />0-6,9
<br />7-10,9
<br />11-12,9
<br />13-18.9
<br />19-25,9
<br />26& U
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<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
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<br />
<br />CONCRETE BLOCK'
<br />INT. INSULATION
<br />NORMAL WT.
<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
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<br />6A-3 DOOR SUMMER POINT MULTIPLIERS 6A-4 CEILING SUMMER POINT MULTIPLIERS (SPM)
<br />DOOR TYPE EXTERIOR ADJACENT UNDER ATTIC SINGLE ASSEMBLY CONCRETE DECK ROOF
<br /> R.YALUE SPM R.YALUE SPM CEILING TYPE
<br />WOOD 7,2 2.4 19-21.9 1,1 10-10,9 3.0 R.YALUE DROPPED EXPOSED
<br /> 22-25,9 .9 11-12,9 2,7 10-13,9 3,0 3.3
<br />INSULATED 4,8 1.6 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 /> 30 & Un 0,9
<br />6A.5 FLOOR SUMMER POINT MULTIPLIERS (SPM)
<br />SLAB-ON-GRADE ':1/1 RAISED I:>> RAISED WOOIY
<br />EDGE INSULATION CONCRETE POST OR PIER STEM WALL wI UNDER ADJ~CENT
<br /> P,i CONSTRUCTION FLOOR INSULATION
<br />R.YALUE SPM R.YALUE SPM Li.T R.Y ALUE SPM SPM SPM
<br />0-2.9 -31.9 ii 0-2,9 -1.0 0-6.9 0.9 -5.8 5,3
<br />3-4,9 .31.8 3-4,9 -1.7 ii 7.10.9 -1.1 -:~,8 2,1
<br />5-6.9 -31.7 5-6,9 -1.7 11-18.9 -1.0 -2.2 1.8
<br />7 & Un -31.6 Hi 7& Un -1.7 19& Un -0,9 -1.8 1.0
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<br />SPM)
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<br />6A-6 INFILTRATION SUMMER POINT MULTIPLIERS (SPM)
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<br /> 6A.7 DUCT MULTIPLIERS (DMl
<br /> INFILTRATION PRACTICE SPM RETURN DUCTS RETURN DUCTS
<br /> (SEE TABLE 6A-21) R.YALUE IN UNCONDITIONED SPACE IN CONDITIONED SPACE
<br />PRACTICE #1 13,8 SUPPLY DUCTS IN 4,2-5.9 1,14 1,10
<br />PRACTICE #2 10,9 UNCONDITIONED SPACE 6.0-6,6 1.10 1.07
<br /> : #3 7,6 6.7 & Un 1,09 1.06
<br /> SUPPLY DUCTS IN 4,2.5,9 1.10 1.00
<br /> CONDITIONED SPACE' 6,0-6,6 1.07 1.00
<br /> 6.7 & Un 1.06 1.00
<br />6A.8 COOLING SYSTEM MULTIPLIERS (CSMl
<br />SYSTEM TYPE COOLING SYSTEM MULTIPLIERS (CSM)
<br />Central Units (SEER) RatinQ 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 & Up
<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
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<br />6A.9 HOT WATER MULTIPLIERS (HWM)
<br />SYSTEM TYPE HOT WATER MULTIPLIERS (HWM
<br />Electric Resistance EF .80..81 ,82-.83 ,84-,85 .86',87 ,88-,90 ,91-.93 .94-.96 ,97 & Up
<br /> HWM 3879 3785 3695 3609 3527 3411 3302 3200
<br />Natural Gas EF .43-.47 I ,48-,49 .50-,51 ,52-,53 ,54-,55 .56-.57 ,58-.59 ,60-.61 ,62-.63 ,64-,65 ,66 & Up
<br /> HWM 2974 I 2664 2558 2459 2368 2284 2205 2132 2063 1998 1938
<br />LP Gas HWM 3638 I 3259 3129 3009 2897 2794 2697 2607 2523 2444 2370
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<br />1 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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<br />.3.
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