Packaged Rooftop Air Conditioners Manual

RT-PRC010-EN56
Table PD-38— Supply Fan Performance With VARIABLE FREQUENCY DRIVE or WITHOUT INLET VANES — 60, 70 and 75 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
14000 295 1.55 366 2.32 441 3.34 505 4.44 559 5.65 606 6.89 648 8.15 687 9.41
15000 305 1.80 373 2.59 442 3.60 508 4.74 563 5.98 611 7.29 654 8.63 693 9.97
16000 316 2.08 380 2.90 444 3.88 509 5.08 566 6.33 615 7.69 659 9.10 699 10.52
17000 327 2.38 389 3.24 448 4.20 510 5.43 568 6.72 619 8.09 663 9.55 704 11.06
18000 338 2.72 399 3.62 454 4.60 512 5.78 569 7.15 621 8.53 667 10.02 708 11.58
19000 349 3.09 408 4.03 461 5.04 515 6.18 570 7.59 623 9.02 670 10.51 712 12.11
20000 361 3.48 419 4.48 469 5.52 519 6.65 572 8.03 624 9.55 672 11.06 715 12.66
21000 372 3.91 429 4.97 478 6.04 525 7.19 575 8.51 625 10.07 673 11.66 718 13.27
22000 384 4.37 440 5.51 488 6.61 533 7.79 579 9.07 627 10.60 674 12.27 719 13.93
23000 395 4.87 450 6.08 497 7.22 541 8.43 584 9.72 629 11.18 675 12.88 720 14.63
24000 407 5.41 461 6.70 508 7.88 550 9.12 591 10.43 633 11.85 677 13.51 721 15.33
25000 419 5.98 473 7.37 518 8.59 559 9.86 599 11.20 639 12.61 680 14.20 723 16.03
26000 431 6.60 484 8.08 528 9.35 569 10.66 607 12.03 645 13.45 685 14.99 725 16.76
27000 443 7.26 495 8.83 539 10.16 579 11.50 616 12.90 653 14.36 690 15.89 728 17.58
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
14000 723 10.67 757 11.95 788 13.24 818 14.55 846 15.89 873 17.25 898 18.63 923 20.04
15000 730 11.32 764 12.68 796 14.04 826 15.41 855 16.81 882 18.22 908 19.65 933 21.11
16000 736 11.96 771 13.39 803 14.84 834 16.28 863 17.74 891 19.22 917 20.71 943 22.22
17000 741 12.57 777 14.10 810 15.62 841 17.15 870 18.69 899 20.23 926 21.79 951 23.36
18000 746 13.17 782 14.78 815 16.39 847 18.01 877 19.63 906 21.25 933 22.88 959 24.52
19000 751 13.76 787 15.44 821 17.14 853 18.84 883 20.54 912 22.25 940 23.96 967 25.68
20000 755 14.36 791 16.10 826 17.87 858 19.65 889 21.44 918 23.23 946 25.03 973 26.83
21000 758 14.97 795 16.76 830 18.59 863 20.45 894 22.32 924 24.19 952 26.08 979 27.96
22000 761 15.64 799 17.44 834 19.32 867 21.23 899 23.18 929 25.13 958 27.10 985 29.07
23000 762 16.37 801 18.17 838 20.06 871 22.03 903 24.03 933 26.06 962 28.10 990 30.15
24000 764 17.14 803 18.96 840 20.86 875 22.84 907 24.89 938 26.98 967 29.09 995 31.22
25000 765 17.94 805 19.82 842 21.72 878 23.70 910 25.77 942 27.90 971 30.07 1000 32.27
26000 766 18.72 806 20.70 844 22.65 880 24.64 913 26.71 945 28.86 975 31.07 1004 33.32
27000 768 19.51 807 21.57 845 23.62 881 25.65 915 27.72 948 29.87 978 32.09 1008 34.38
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
14000 947 21.47 970 22.92 993 24.39 1015 25.89 1036 27.40 1057 28.93 1077 30.49 1097 32.06
15000 957 22.59 981 24.09 1003 25.61 1025 27.16 1047 28.72 1068 30.30 1088 31.91 1108 33.53
16000 967 23.75 991 25.30 1014 26.87 1036 28.46 1057 30.08 1078 31.71 1099 33.36 1119 35.03
17000 976 24.94 1000 26.55 1023 28.17 1046 29.81 1067 31.48 1089 33.16 1109 34.86 1129 36.58
18000 985 26.17 1009 27.83 1032 29.51 1055 31.20 1077 32.92 1098 34.65 1119 36.40
19000 992 27.40 1017 29.13 1041 30.87 1064 32.63 1086 34.40 1108 36.19 1129 37.99
20000 999 28.63 1024 30.44 1048 32.25 1072 34.08 1094 35.91 1116 37.76
21000 1006 29.85 1031 31.74 1055 33.63 1079 35.53 1102 37.44 1124 39.35
22000 1012 31.04 1037 33.02 1062 35.00 1086 36.98 1109 38.96
23000 1017 32.21 1043 34.27 1068 36.34 1092 38.41 1116 40.47
24000 1022 33.35 1048 35.50 1074 37.65 1098 39.80 1122 41.96
25000 1027 34.48 1053 36.70 1079 38.93 1104 41.17 1127 43.41
26000 1031 35.60 1058 37.89 1084 40.20 1109 42.52
27000 1036 36.71 1062 39.07 1088 41.45 1113 43.85
Notes:
1. Fan performance for 60, 70 and 75 ton rooftops are identical. However, note maximum motor hp size for each size. Contact your local Trane representative for information on
non-standard 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: 60 Ton — 27,000 Cfm , 70 & 75 Ton — 30,000 Cfm
5. Minimum motor horsepower is 10 hp.
6. Maximum motor horsepower is 40 hp.
7. Maximum motor Rpm is 1,130.
8. See RT-EB-104 for further details.
(60, 70, 75 Tons)Performance
Data