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RT-SVX072A-EN
Return Fan Performance
Table 44. Return fan performance—20, 25, 30 ton air-cooled and (24.5" Fan)
CFM
Std
Air
Return Fan Static Pressure Including Relief Damper P.D.
0.25 0.50 0.75 1.00 1.25 1.50 1.75 2.00
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
4000 557 0.29 638 0.48 710 0.68 776 0.89 838 1.10 899 1.32 969 1.60 1038 1.89
4500 605 0.36 682 0.57 749 0.79 811 1.02 869 1.25 926 1.49 980 1.73 1033 1.99
5000 654 0.44 727 0.67 790 0.91 850 1.16 905 1.41 957 1.67 1007 1.93 1057 2.20
5500 704 0.53 773 0.79 834 1.04 889 1.30 943 1.58 992 1.86 1040 2.15 1087 2.44
6000 756 0.64 821 0.92 879 1.20 932 1.47 982 1.77 1030 2.06 1076 2.38 1121 2.70
6500 808 0.76 868 1.06 925 1.36 976 1.66 1024 1.97 1070 2.29 1114 2.61 1157 2.95
7000 861 0.90 917 1.21 972 1.55 1021 1.87 1067 2.19 1112 2.53 1154 2.87 1195 3.22
7500 913 1.06 968 1.39 1019 1.74 1068 2.10 1112 2.44 1155 2.79 1196 3.15 1235 3.51
8000 967 1.24 1019 1.58 1068 1.96 1115 2.34 1158 2.71 1199 3.08 1238 3.45 1277 3.84
8500 1021 1.44 1071 1.80 1116 2.19 1162 2.60 1204 3.00 1244 3.39 1283 3.79 1320 4.19
9000 1075 1.67 1123 2.04 1166 2.45 1210 2.88 1252 3.30 1290 3.72 1327 4.14 1363 4.56
9500 1130 1.92 1175 2.31 1217 2.73 1258 3.17 1299 3.62 1337 4.07 1373 4.52 1408 4.96
10000 1186 2.20 1228 2.60 1269 3.04 1307 3.50 1347 3.97 1384 4.45 1419 4.91 1454 5.38
10500 1241 2.50 1280 2.92 1321 3.37 1357 3.85 1395 4.34 1432 4.85 1466 5.33 1500 5.84
11000 1297 2.84 1334 3.27 1373 3.74 1409 4.23 1443 4.74 1480 5.26 1515 5.79 1546 6.29
11500 1353 3.20 1387 3.64 1425 4.13 1460 4.64 1493 5.16 1528 5.71 1561 6.25 1594 6.79
12000 1408 3.60 1441 4.06 1477 4.56 1512 5.08 1544 5.62 1576 6.18 1610 6.75 1642 7.32
12500 1464 4.03 1496 4.50 1530 5.01 1565 5.56 1596 6.11 1626 6.68 1658 7.28 1689 7.87
13000 1520 4.49 1551 4.98 1583 5.51 1617 6.06 1648 6.64 1677 7.22 1707 7.84 1737 8.44
13500 1576 4.99 1606 5.50 1636 6.03 1669 6.60 1700 7.20 1728 7.80 1756 8.42 1785 9.06
14000 1633 5.52 1661 6.05 1690 6.60 1721 7.19 1752 7.79 1780 8.42 1807 9.05 1834 9.70
Notes:
1. Max fan RPM 1715 for 24.5" Class I Fan
2. Max motors available are as follows: 20/24T: 3HP, 25/29T; 5HP, 30/36T: 7.5 HP
3. Max CFM available is as follows; 20/24T: 9000, 25/29T: 11000, & 30/36T: 13500
4. Min CFM is 4000 for 20/24T, 25/29T, & 30/36T
5. Return fan belt drive RPM selections will be available to cover 500-1600 RPM range +/- 50 RPM
6. Performance data includes cabinet and rain hood effect. Damper pressure drop must be added to the return duct static. See table Component static
pressure drops - relief damper for return fan in Performance Data.
7. Shaded area indicates nonstandard BHP or RPM selections. Contact a local Trane® representative for more information.
Table 45. Return fan performance—40, 50 and 55 ton air-cooled and (27" Fan)
CFM
Std
Air
Return Fan Static Pressure Including Relief Damper P.D.
0.25 0.50 0.75 1.00 1.25 1.50 1.75 2.00
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
7500 709 0.82 766 1.16 815 1.50 861 1.85 906 2.22 949 2.60 991 2.99 1033 3.39
8000 748 0.95 803 1.31 851 1.67 895 2.04 938 2.43 979 2.82 1018 3.22 1058 3.64
8500 788 1.09 840 1.47 887 1.86 930 2.24 971 2.64 1010 3.05 1049 3.48 1087 3.92
9000 827 1.24 878 1.64 924 2.05 965 2.46 1005 2.88 1043 3.31 1080 3.75 1115 4.19
9500 867 1.41 916 1.83 961 2.27 1001 2.70 1040 3.14 1076 3.58 1112 4.03 1146 4.50
10000 908 1.60 955 2.04 999 2.50 1038 2.95 1075 3.41 1111 3.88 1145 4.34 1179 4.83
10500 948 1.81 994 2.27 1036 2.75 1075 3.23 1111 3.70 1145 4.18 1179 4.68 1212 5.18
11000 989 2.04 1033 2.51 1074 3.01 1112 3.51 1147 4.01 1181 4.51 1213 5.02 1245 5.53
11500 1030 2.28 1072 2.78 1112 3.29 1149 3.82 1184 4.33 1216 4.86 1248 5.38 1279 5.92
12000 1071 2.55 1112 3.06 1151 3.59 1187 4.14 1221 4.69 1253 5.24 1284 5.78 1314 6.33
12500 1112 2.83 1152 3.37 1189 3.92 1225 4.48 1258 5.06 1290 5.62 1320 6.19 1349 6.76
13000 1153 3.14 1192 3.70 1228 4.27 1263 4.86 1296 5.45 1327 6.04 1356 6.63 1385 7.23
13500 1194 3.47 1232 4.05 1267 4.63 1301 5.24 1333 5.85 1364 6.47 1393 7.08 1421 7.70
14000 1236 3.83 1272 4.42 1307 5.03 1340 5.66 1371 6.29 1401 6.94 1430 7.57 1457 8.20
14500 1277 4.21 1313 4.82 1346 5.45 1379 6.10 1410 6.75 1439 7.42 1467 8.08 1494 8.73
15000 1319 4.62 1353 5.25 1386 5.90 1417 6.55 1448 7.23 1477 7.92 1504 8.61 1531 9.29
15500 1361 5.05 1394 5.71 1426 6.37 1457 7.05 1486 7.74 1514 8.44 1542 9.16 1569 9.87
16000 1402 5.51 1435 6.18 1466 6.87 1496 7.57 1525 8.28 1553 9.01 1580 9.74 1606 10.47
16500 1444 6.00 1476 6.69 1506 7.40 1535 8.12 1564 8.85 1591 9.58 1617 10.34 1643 11.10
17000 1486 6.52 1517 7.23 1547 7.96 1575 8.70 1603 9.44 1629 10.20 1655 10.97 1681 11.75
17500 1528 7.07 1558 7.80 1587 8.55 1615 9.30 1642 10.07 1668 10.85 1694 11.64 1718 12.43
18000 1570 7.65 1599 8.40 1627 9.17 1655 9.94 1681 10.73 1707 11.53 1732 12.33 1757 13.15
18500 1612 8.26 1640 9.03 1668 9.81 1695 10.62 1721 11.43 1746 12.23 1771 13.07 1794 13.89
19000 1654 8.91 1682 9.70 1709 10.50 1735 11.31 1760 12.14 1785 12.97 1809 13.82 1833 14.67
19500 1696 9.59 1723 10.40 1749 11.22 1775 12.06 1800 12.90 1825 13.76 1848 14.62 1872 15.50
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