Document RaEn7G2zXjOd0jn2RXmpj2O6k

472 S sfa o {M OS H > Q cs 0.^ H . O\ ,3 toy- ^ to o2*CQ.'oi*. H g 03 5<CS -Se 'oog 2 ** *'*>st >2 = a H gg g 1 3 3-5 H .. <o s -tS sa "2?a e^ 6 f* e s S <a o -S * to SQ -7 E-< .Si & B.-S '> 2 ?. Z 'fiq fi$- ,fc -!V z o a- j a w 160f 1 CHAPTER 20 ; 1953 Guide 12.7 12.9 13.4 13.7 14.0 14.6 15.3 15.7 15:9 22.1 22.6 14.8 15.1 15.5 16.4 16.616.9 17.3 149 147 144 142 140 139 137 14.2 14.6 136 134 132 132 130 128 127 126 125 15.515.9 16.4 16.6 16.9 17.2 16.616.9 17.2 17.3 17.6 18.4 18.7 127 126 125 124 123 153 I 151- 148 146 . 12. 212.4 12.8 13. .1 . 9.9 10.6 10.8 11.1 11.411.7 169 166 163 160 157 12.8 13.1 13.613.9 14.2 14. 614.9 15.3 15.7 16.216.4 16.616.9 17.3 17.9 18.4 19.0 191319.6 1100 1200 114 113 112 .230 .240 110 109 20.3 20.721.1 118 117 116 S'' 8 5 2 ' CO S' a OO H '0H5 120 119 3 wrta. Ii W- . e~".! a-.S cq Co4 ' eS i-H C4 CO 123 121 120 r 17.6 18. ! 18.4 ^ c$ CO r^ eCHO 128 127 126 124 CD ^ . 'co 05 hi H 0005 CD 133 131 129 15.3 15.7 16.2 0C0O 05kHO k_Oo .-** 135 133 131 130 ^ 122 120 g ! io -1 3 8 o1-->H1' 0H0 o C*_-H CO . CD 5^*t< ' CCO 14.4 14.8 l 159 11.5 138 136 148 146 143 141 139 137 135 133 131 129 128 127 126 12 .4 16.9 17.2 17.3 17.8 18.1 18.418.7 19.0 19.3 126 126 124 123 121 120 119 118 117 . 12`0 13 11401150 CO . .8- ' 'A cS CP_ CWO* CC'OD - kW0O0 00 CO * - CO H s c5' CO ^ H^ He05o 15.5 15.9 138 14.4 _ '-I 132 130 *2 ' 2 CO. S 05 k-JD* . 05 o1 it 11001 eS >Q- r- \ 05 C^O kO CO okO 0^5 ^ckrHDo ^ 00 `o 8 rO-- c- e* - co *-4 5*H IWD* - CO r^ N0 5 d>--C 0 0"5' 0s5 dCO - ^i*--4 16 ,5 10. ,9 e-or lO ec o * S CD 00w5-* . r2--of -. 2k^O c* CO kO CO CO CN CD - M-5 *S 176 12.9 167 9.9 10.2 10.7 14.8 15.1 15.6 15.9 16.4 136 134 132 130 128 60 60 9.5 178 175 9.8 10.0 183 SOI 3Z I 9 01 O il 147 HkO 05 H CHD 1w-Ht r01-H-5 00 05 4 8 oIO Cto* S CD - 1 o09 dkHQ Mf-4 CHD cf-o4 o fl S1-o* 05 .Sfl => k. ' 20 C01-H05 CD 05 s^H 05 11.6 12.0 1 167 164 10.7 11.0 177 173. 158 155 00O co ^rj* 196 *- 05 8.8 ^f43l) -3O.' 1-2 f2|- a j < H H" H 140 1 .4 0" 150 12.6 160 11.4 170 10.5 200 8.6 S 05 ro 061 O2a>&O !i Ub ss g 2 .0 Forced Warm Air Systems \' 473 Table 7. Determination op Free Area and Total Pressure Loss op Register 7. ' jor 22 Deg Deflection of Air '>' Register Free Area in Square Inches (Upper value in each group) Pressure Loss in Inches of Water (Lower value in each group) Cpm Up to 59 60-69 Residential. Use Reg. Size or Equiv alent 10 x 4 10 x 6 Pres sure Loss - .01 ;01 10 x 6 12 x 4 .01 .02 Cpm 100-119 120-129 Residential Use Reg. Size or Equiv alent 12 x 6 14x4 Pres sure Loss Cpm -jj| | 700-739 12 x-6 14 x 6 .02 .02 740-779 Distance F&om Register to Opposite Wall . 31-34^35-39 50-59j60-69j7b-7oj80-89 10-49 1A B 243 r-186 127 | 85 0.02 0.03 0.06 0.11 ; 271 J 208 141 94 0.02 0.03J 0.05 0.1C 70-99 10 x 6 12 x 6 .02 '130-169 .02 14 x 6 .02 780-819 230 157 105 0.02 0.05 0.09 Ctm 190-209 170-189 14 ^8 .02 Distance From Register to Opposite Wall Up 18-2lj22-24 2&-27 28-30|31-34*35--39 j40--49 50-59 TO 18 A .68. 49 38 29 1 24 19 0.02 0.03 0.05 0.08* 0.11 0.16 820-859 860-899 900-930 < 254 173 115 0.02 0.04 0.08 278 190 126 0.02 0.04 0.08 304 207 138 0.02 0.04 0.07 -- 210-229 82 '60 45 35 28 23 0.02 0.03 0.04 0.06 0.10 0.13 940-979 332 226 151 108 0.02 0.03 0.07 0.12 230-249 71 54 42 34 28 22 0.02 0.04 0.06 0.08 0.11 0.17 980-1019 360 245 163 118 0.02 0.03 0.06 0.11 250-269 84 63 49 40 32 25 0.02 0.03 0.05 0.07 0.10 0.16 1020-1059 390 265 177 127 0.02 0.03 0.06 0.11 270-299 100 76 60 48 38 30 0.02 0.03 0.04 0.06 0.09 0.13 1060-1099 285 190 137 0.03 0.06 0.10 300-339 96 73 60 48 37 0.02 0.04 0.05 0,07 0.11 1100-1139 307 204 147 0.03 0.06 0.09 340-379 122 95 78 61 47 33 0.02 0.03 0.04 0.06 0.09 0.18 1140-1179 330 220 158 0.02 0.05 0.09 380-4191. 117. 94 75 58 39 0.02 0.03 0.05 0.08 0.15 1180-1219 353 235 169 0.02 0.04 0.08 420-459 142 113 91 70 47 0.02 0.03 0.04 0.06 0.13 1220-1259 376 251 180 0.02 0.04 0.08 460-499 168 135 108 83 56 0.02 0.03 0.04 0.06 0.11 1260-1299 401 267 192 136 0.02 0.04 0.07 0.13 500-539 159 126 97 ` 66 0.02 0.03 0.05 0.10 1300-1339 426 284 204 144 0.02 0.04 0.07 0.13 540-579 185 147 113 77 0.02 0.03 0.04 0.08 1340-1379 452 301 217 154 109 0.02 0.04 0.06 0.12 0.22 580-619 620-659 212 i69 130 88 51 0.02 0.03 0.04 0.08 0.18 192 147 100 59 0.02 0.03 0.07 0.15 1380-1419 1420-1459 479 319 230 163 116 0.02 0.04 0.06 0.12 0.21 .508 338 244 172 122. 0.02 0.03 0.06 0.11 0.20 660-699 217 166 113 75 1460-1600 1 0.02 0.03 0.06 0.13 1 q32 356 256 182 129 0.03 0.06 0.10 0.19 AB A' B' * If register selected based on distance from register to opposite wall is unsatisfactory on account of size or pressure loss, it is permissible to shift one or more spaces left or right in the tables to obtain a more suitable register. If re quirements fall in blank space, select two registers in place of one and divide CFM capacity between t he two registers. . k Total pressure (static plus velocity) loss is based on FLAT FACE ADJUSTABLE BAR TYPE and does NOT include stackhead. Values on the right of line A and A' should not be used in applications such as churches, auditoriums, and con cert halls. Values on right of line B and B' should not be used in applications such as residential work, motion picture thea- tera> court rooms and schools. CFM X 144 e For floor and baseboard registers where a velocity of approximately 300 FPM is used, the free area = ^qq approximately,, Assume a pressure loss of 0.01.