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66 RT-PRC031-EN
Table 25 Return Fan Performance STANDARD CFM—Case A (36.5" Fan)
CFM Negative Static Pressure
Std. 0.25 0.50 0.75 1.00 1.25 1.50 1.75 2.00
Air RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
16000 614
(i)
(i)
Outlined area indicates nonstandard BHP or RPM selections. Contact a local Trane representative for more information.
2.65 647 3.39 678 4.15 709 5.00 739 5.83 767 6.65 797 7.53 825 8.41
17000 648 3.07 680 3.87 710 4.66 739 5.53 767 6.44 795 7.31 822 8.19 849 9.11
18000 683 3.55 713 4.39 741 5.22 769 6.10 797 7.08 823 8.01 848 8.92 875 9.89
19000 717 4.07 746 4.96 773 5.84 799 6.74 826 7.72 851 8.74 876 9.73 900 10.69
20000 752 4.65 780 5.57 806 6.51 831 7.45 855 8.44 881 9.52 904 10.56 928 11.60
21000 787 5.29 813 6.25 839 7.23 863 8.21 886 9.21 910 10.33 934 11.45 956 12.53
22000 822 5.99 847 6.99 872 8.02 895 9.04 917 10.07 940 11.17 963 12.34 985 13.54
23000 858 6.75 881 7.80 905 8.87 928 9.93 949 11.00 971 12.11 992 13.31 1014 14.55
24000 893 7.57 915 8.66 938 9.78 960 10.89 981 12.00 1002 13.13 1022 14.33 1043 15.61
25000 928 8.46 950 9.59 972 10.75 994 11.92 1014 13.07 1034 14.24 1054 15.46 1074 16.76
26000 964 9.43 984 10.60 1006 11.79 1026 13.00 1046 14.21 1066 15.42 1085 16.65 1104 17.95
27000 999 10.46 1019 11.67 1039 12.91 1060 14.17 1079 15.43 1098 16.67 1116 17.93 1135 19.24
28000 1035 11.57 1054 12.82 1073 14.11 1093 15.41 1112 16.73 1131 18.01 1148 19.31 1166 20.64
29000 1070 12.76 1089 14.06 1108 15.39 1127 16.72 1145 18.09 1163 19.43 1181 20.76 1198 22.11
30000 1106 14.04 1124 15.38 1142 16.73 1160 18.12 1179 19.53 1196 20.93 1213 22.31 1230 23.72
31000 1142 15.40 1159 16.77 1176 18.17 1194 19.61 1212 21.05 1229 22.50 1246 23.93 1262 25.35
CFM Negative Static Pressure
Std. 2.25 2.50
Air RPM BHP RPM BHP
16000 851 9.29 876 10.20
17000 875 10.04 900 11.00
18000 901 10.86 925 11.84
19000 925 11.70 949 12.72
20000 951 12.61 974 13.68
21000 978 13.61 1000 14.69
22000 1007 14.67 1027 15.78
23000 1035 15.76 1056 16.95
24000 1064 16.89 1084 18.16
25000 1093 18.07 1113 19.41
26000 1123 19.32 1142 20.72
27000 1153 20.60 1172 22.06
28000 1183 21.99 1202 23.49
29000 1215 23.49 1232 24.97
30000 1247 25.14 1263 26.58
31000 1278 26.81 1294 28.28
Performance Data—Return Fan