79
Table 4-4
20 through 75 Ton 50% Modulating Exhaust Fan Performance
Negative Static Pressure
Cfm 0.20" W.G. 0.40" W.G. 0.60" W.G. 0.80" W.G. 1.00" W.G. 1.20" W.G. 1.40" W.G.
Std.
Air RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
S*HF-C20 2,000
364 0.17 487 0.30 582 0.45 658 0.58 731 0.73 797 0.90 856 1.08
S*HF-C25 3,000
435 0.36 522 0.51 614 0.67 694 0.88 765 1.11 830 1.34 886 1.54
4,000
529 0.76 592 0.86 654 1.03 728 1.29 797 1.51 861 1.77 919 2.05
5,000
623 1.32 687 1.56 735 1.67 778 1.79 836 2.13 896 2.45 953 2.72
6,000
722 2.13 779 2.47 830 2.72 890 2.86 905 2.96
S*HF-C30 2,000
364 0.17 487 0.30 582 0.45 658 0.58 731 0.73 797 0.90 856 1.08
3,000
435 0.36 522 0.51 614 0.67 694 0.88 765 1.11 830 1.34 886 1.54
4,000
529 0.76 592 0.86 654 1.03 728 1.29 797 1.51 861 1.77 919 2.05
5,000
623 1.32 687 1.56 735 1.67 778 1.79 836 2.13 896 2.45 953 2.72
6,000
722 2.13 779 2.47 830 2.72 870 2.86 905 2.96 944 3.16 994 3.59
7,000
824 3.23 874 3.64 922 4.02 965 4.30 1000 4.48 1032 4.59 1062 4.72
S*HF-C40 3,000
288 0.22 393 0.38 477 0.55 547 0.74 611 0.94 668 1.16 721 1.39
5,000
372 0.66 430 0.83 495 1.05 557 1.29 621 1.57 680 1.87 732 2.16
7,000
472 1.55 522 1.82 563 2.04 606 2.29 653 2.59 698 2.91 742 3.24
9,000
578 3.06 621 3.41 661 3.76 695 4.06 725 4.34 758 4.65 794 5.01
11,000
688 5.36 725 5.80 760 6.24 793 6.66 823 7.06 850 7.42 875 7.76
S*HF-C50 3,000
288 0.22 393 0.38 477 0.55 547 0.74 611 0.94 668 1.16 721 1.39
S*HF-C55 5,000
372 0.66 430 0.83 495 1.05 557 1.29 621 1.57 680 1.87 732 2.16
7,000
472 1.55 522 1.82 563 2.04 606 2.29 653 2.59 698 2.91 742 3.24
9,000
578 3.06 621 3.41 661 3.76 695 4.06 725 4.34 758 4.65 794 5.01
11,000
688 5.36 725 5.80 760 6.24 793 6.66 823 7.06 850 7.42 875 7.76
S*HF-C60 4,000
271 0.29 364 0.54 438 0.82 499 1.07 550 1.30 601 1.56 651 1.87
S*HF-C70 6,000
339 0.71 391 0.90 456 1.22 517 1.60 572 2.01 622 2.43 668 2.85
S*HF-C75 8,000
425 1.55 460 1.73 497 1.96 542 2.30 591 2.72 639 3.20 684 3.73
10,000
517 2.88 543 3.13 571 3.34 600 3.59 632 3.94 668 4.37 707 4.87
12,000
612 4.84 633 5.15 655 5.43 678 5.68 702 5.95 726 6.29 752 6.91
13,000
659 6.09 679 6.44 699 6.76 720 7.04 741 7.31
Note:
Blocked areas identif
non-standard motor selections.
90 through 130 Ton 50% Modulating Exhaust Fan Performance
CFM Negative Static Pressure
STD 0.250" W.G. 0.500" W.G. 0.750" W.G. 1.000" W.G. 1.250" W.G. 1.500" W.G.
AIR RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
12,000
452 3.68 495 4.21 536 4.85 576 5.46 614 6.17 651 6.95
14,000
516 5.71 551 6.21 586 6.85 622 7.63 657 8.36 690 9.09
16,000
583 8.41 609 8.85 643 9.57 672 10.29 704 11.18 735 12.07
18,000
650 11.88 672 12.29 699 12.94 729 13.79 755 14.59 782 15.56
20,000
718 16.20 737 16.62 758 17.18 785 18.03 811 18.97 835 19.86
CFM Negative Static Pressure
STD 1.750" W.G. 2.000" W.G. 2.250" W.G. 2.500" W.G.
AIR RPM BHP RPM BHP RPM BHP RPM BHP
12,000
687 7.73 722 8.55 759 9.46 797 10.45
14,000
723 9.96 754 10.88 785 11.79 815 12.72
16,000
764 12.84 793 13.72 822 14.72 850 15.76
18,000
811 16.62 838 17.53 864 18.41 889 19.39
20,000
859 20.87 885 22.05 910 23.18 934 24.17
Note:
Blocked areas identif
non-standard motor selections.
