98
RT-SVX072A-EN
Table 38. Modulating 100% relief fan performance — 20 to 75 tons (continued)
Nom
Tons
CFM
Std
Air
Negative Static Pressure
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
60,
70, 75
12000 351 1.49 423 2.09 502 3.00 572 4.02 634 5.07 690 6.09 740 7.04 784 7.91
15000 412 2.68 460 3.15 521 3.96 585 5.02 646 6.24 702 7.53 749 8.83 801 10.14
18000 478 4.41 516 4.88 557 5.54 607 6.49 662 7.66 715 9.01 766 10.48 814 12.01
21000 549 6.75 578 7.36 612 7.92 647 8.71 688 9.77 735 11.03 781 12.46 827 14.03
24000 617 9.83 644 10.59 672 11.22 702 11.88 732 12.77 766 13.89 805 15.22 846 16.72
27000 688 15.11 711 15.09 736 15.45 761 16.18 788 17.02 815 17.92 844 18.99 876 20.31
Notes:
1. Shaded areas indicate non-standard drive selections. These drive selections must be manually factory selected.
2. Refer to General Data Table for minimum and maximum HP.
Table 39. Air-cooled modulating 100% relief fan performance — 90 to 130 tons
Nom
Tons
CFM
Std
Air
Negative Static Pressure
0.25 0.50 0.75 1.00 1.25
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
90-
130
28000 495 12.81 519 13.30 547 13.93 582 15.27 619 17.14
30000 527 15.67 550 16.22 573 16.71 604 17.84 637 19.53
32000 559 18.92 581 19.53 602 20.03 628 20.90 658 22.39
34000 591 22.60 612 23.28 632 23.84 653 24.48 681 25.74
36000 623 26.73 643 27.47 662 28.09 680 28.62 705 29.66
38000 656 31.34 675 32.14 693 32.83 710 33.42 730 34.17
40000 688 36.46 707 37.31 724 38.07 741 38.73 757 39.29
Nom
Tons
CFM
Std
Air
Negative Static Pressure
1.50 1.75 2.00 2.25 2.50
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
90-
130
28000 655 18.85 689 20.51 721 22.51 750 24.43 777 26.28
30000 672 21.63 705 23.38 737 25.16 768 27.31 795 29.37
32000 690 24.39 723 26.63 753 28.44 784 30.37 811 32.54
34000 710 27.55 739 29.75 771 32.16 799 34.04 828 36.04
36000 732 31.25 759 33.29 788 35.76 817 38.26 844 40.23
38000 755 35.51 780 37.38 806 39.60 834 42.26 861 44.90
40000 779 40.45 804 42.09 827 44.14 853 46.63 879 49.41
Notes:
1. Shaded areas indicate non-standard drive selections. These drive selections must
be manually factory selected.
2. Refer to General Data Table for minimum and maximum HP.
Table 40. 100% Relief fan drive selections — 20 to 75 tons
3 Hp 5 Hp 7.5 Hp 10 Hp 15 Hp 20 Hp
RPM
Drive
No.
RPM
Drive
No.
RPM
Drive
No.
RPM
Drive
No.
RPM
Drive
No.
RPM
Drive
No.
20
500 5
600 6
700 7
800 8
900 9
25
500 5 700 7
600 6 800 8
700 7 900 9
800 8 1000 A
900 9
30
500 5 700 7 800 8
600 6 800 8 900 9
700 7 900 9 1000 A
800 8 1000 A 1100 B
900 9
40
400 4 600 6 700 7
500 5 700 7 800 8
600 6 800 8
700 7
800 8
50–55
400 4 600 6 700 7 700 7
500 5 700 7 800 8 800 8
600 6 800 8 900 9
700 7
800 8
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