Retrotec Residential Pressure & Air Leakage - Manual (Page 49)

Page 49 of 75
1.14 1.068 0.79 0.889
1.13 1.063 0.78 0.883
1.12 1.058 0.77 0.877
1.11 1.054 0.76 0.872
1.10 1.049 0.75 0.866
1.09 1.044 0.74 0.860
1.08 1.039 0.73 0.854
1.07 1.034 0.72 0.849
1.06 1.030 0.71 0.843
Determine Adjusted Total Air Handler Flow manually using gauge and look up tables
1. Connect the tubing from the installed metering plate to the yellow and green ports (“Ref B” and
“Input B”) on the gauge.
2. Display Pressure on Channel B, “PrB” in Pascals (Pa) and record “PrB”.
3. Use Table 11 to determine the flow (in CFM) at the recorded pressure.
4. Use Table 12 to calculate adjusted airflow.
Table 11: Flow through TrueFlow® metering plates at various pressures
Pressure
(Pa)
#14
(CFM)
#20
(CFM)
Pressure
(Pa)
#14
(CFM)
#20
(CFM)
Pressure
(Pa)
#14
(CFM)
#20
(CFM)
10 364 487 70 962 1288 130 1311 1756
11 381 511 71 969 1298 131 1316 1763
12 398 533 72 976 1307 132 1321 1769
13 415 555 73 983 1316 133 1326 1776
14 430 576 74 989 1325 134 1331 1783
15 445 596 75 996 1334 135 1336 1789
16 460 616 76 1003 1343 136 1341 1796
17 474 635 77 1009 1351 137 1346 1803
18 488 653 78 1016 1360 138 1351 1809
19 501 671 79 1022 1369 139 1356 1816
20 514 689 80 1029 1377 140 1361 1822
21 527 706 81 1035 1386 141 1366 1829
22 539 722 82 1041 1395 142 1370 1835
23 552 739 83 1048 1403 143 1375 1842
24 563 754 84 1054 1411 144 1380 1848
25 575 770 85 1060 1420 145 1385 1854
26 586 785 86 1066 1428 146 1390 1861
27 598 800 87 1073 1436 147 1394 1867
28 609 815 88 1079 1445 148 1399 1873
29 619 829 89 1085 1453 149 1404 1880
30 630 843 90 1091 1461 150 1408 1886
31 640 857 91 1097 1469 151 1413 1892
32 651 871 92 1103 1477 152 1418 1899
33 661 885 93 1109 1485 153 1422 1905
34 671 898 94 1115 1493 154 1427 1911
35 680 911 95 1121 1501 155 1432 1917
36 690 924 96 1127 1509 156 1436 1923
37 700 937 97 1133 1517 157 1441 1930
38 709 949 98 1138 1525 158 1446 1936
39 718 962 99 1144 1532 159 1450 1942
40 727 974 100 1150 1540 160 1455 1948
41 736 986 101 1156 1548 161 1459 1954
42 745 998 102 1161 1555 162 1464 1960
43 754 1010 103 1167 1563 163 1468 1966
44 763 1022 104 1173 1570 164 1473 1972
45 771 1033 105 1178 1578 165 1477 1978
46 780 1044 106 1184 1586 166 1482 1984
47 788 1056 107 1190 1593 167 1486 1990
48 797 1067 108 1195 1600 168 1491 1996
49 805 1078 109 1201 1608 169 1495 2002
50 813 1089 110 1206 1615 170 1499 2008
51 821 1100 111 1212 1622 171 1504 2014
52 829 1111 112 1217 1630 172 1508 2020
53 837 1121 113 1222 1637 173 1513 2026
54 845 1132 114 1228 1644 174 1517 2031
55 853 1142 115 1233 1651 175 1521 2037