Packaged Rooftop Air Conditioners Manual
RT-PRC010-EN46
Performance
Data
Table PD-33 — Supply Fan Performance WITH INLET VANES — 20 and 25 Tons
Cfm Total Static Pressure
Std ,250 ,500 ,750 1.000 1.250 1.500 1.750 2.000
Air RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
4000 387 .37 514 .65 621 .99 712 1.37 791 1.78 861 2.22 925 2.67 983 3.13
5000 420 .55 530 .85 631 1.22 721 1.62 800 2.06 872 2.54 939 3.05 1000 3.57
6000 469 .82 557 1.13 646 1.51 730 1.95 810 2.43 881 2.92 947 3.45 1009 4.01
7000 526 1.21 591 1.50 673 1.92 748 2.36 819 2.85 892 3.40 958 3.96 1018 4.54
8000 586 1.72 638 2.02 702 2.41 775 2.90 841 3.41 903 3.94 967 4.54 1029 5.17
9000 647 2.37 692 2.68 742 3.05 803 3.53 868 4.10 928 4.67 983 5.24 1038 5.87
10000 708 3.15 750 3.51 792 3.88 840 4.33 895 4.88 954 5.50 1010 6.14 1060 6.77
11000 769 4.10 809 4.51 846 4.90 886 5.33 931 5.85 982 6.46 1036 7.14 1088 7.85
Cfm Total Static Pressure
Std 2.250 2.500 2.750 3.000 3.250 3.500 3.750 4.000
Air RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
4000 1037 3.61 1087 4.09 1135 4.59 1180 5.11 1224 5.63 1265 6.16 1305 6.70 1343 7.26
5000 1056 4.12 1109 4.67 1159 5.24 1206 5.82 1251 6.40 1293 7.00 1334 7.61 1374 8.23
6000 1067 4.60 1122 5.21 1174 5.84 1223 6.48 1269 7.14 1314 7.80 1356 8.48 1397 9.16
7000 1076 5.14 1131 5.78 1183 6.45 1233 7.13 1281 7.84 1327 8.56 1371 9.29 1413 10.04
8000 1086 5.82 1140 6.47 1192 7.14 1241 7.85 1289 8.58 1335 9.34 1380 10.11 1423 10.90
9000 1095 6.56 1151 7.27 1203 8.00 1252 8.72 1299 9.47 1344 10.23 1388 11.02 1431 11.84
10000 1109 7.43 1160 8.14 1211 8.90 1262 9.70 1310 10.50 1355 11.30 1399 12.12 1441 12.94
11000 1136 8.54 1181 9.24 1225 9.97 1271 10.75 1318 11.58 1364 12.45 1409 13.33 1452 14.21
Cfm Total Static Pressure
Std 4.250 4.500 4.750 5.000 5.250 5.500 5.750 6.000
Air RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
4000 1380 7.82 1416 8.39 1450 8.97 1484 9.56 1517 10.16 1549 10.77 1580 11.38 1611 12.01
5000 1412 8.85 1449 9.49 1484 10.13 1519 10.78 1552 11.44 1585 12.11 1617 12.79 1648 13.47
6000 1436 9.85 1474 10.55 1511 11.26 1547 11.98 1581 12.70 1615 13.44 1647 14.18
7000 1453 10.80 1493 11.57 1531 12.34 1567 13.13 1603 13.92 1638 14.72
8000 1465 11.71 1505 12.54 1544 13.37 1582 14.22 1618 15.07 1654 15.94
9000 1473 12.68 1514 13.53 1553 14.41 1591 15.30 1629 16.20
10000 1482 13.79 1522 14.66 1561 15.55 1600 16.46 1637 17.40
11000 1493 15.10 1533 15.99 1572 16.89 1609 17.82 1646 18.76
Notes:
1. Fan performance for 20 and 25 ton rooftops is identical. However, note maximum motor hp size for each size. Contact your local Trane representative for information on
oversized motors.
2. Shaded areas at table extremes note non-standard Bhp or Rpm selection. Contact your local Trane representative for more information.
3. Supply fan performance table includes internal resistance of rooftop. For total static pressure determination, system external static must be added to appropriate component
static pressure drops (evaporator coil, filters, optional economizer, optional exhaust fan, optional heating system, optional cooling only extended casing, optional roof curb).
4. Maximum Cfm (for UL approval) as follows: 20 Ton — 9,000, Cfm 25 Ton — 11,000 Cfm.
5. Minimum motor horsepower is 3 hp.
6. Maximum motor horsepower as follows: 20 Ton — 10 hp, 25 Ton — 15 hp.
7. Maximum 3 hp and 5 hp motor Rpm is 1,100, maximum 7.5 hp to 15 hp motor Rpm is 1655.
8. See RT-EB-104 for further details
(20, 25 Tons)