Startup
RT-SVX34F-EN
61
Table 38. Supply fan performance—40 and 50 Ton—60 Hz
CFM Std.
Air
Total Static Pressure (in. wg)
1
0.25
0.50
0.75
1.00
1.25
1.50
1.75
2.00
2.25
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM
BHP
RPM
BHP
12000
307
2.29
353
2.86
394
3.45
436
4.11
471
4.75
509
5.43
543
6.14
575
6.89
606
7.63
13000
324
2.79
368
3.40
407
4.06
446
4.73
482
5.43
515
6.13
550
6.87
582
7.65
612
8.44
14000
341
3.35
384
4.03
422
4.74
457
5.42
494
6.19
525
6.93
556
7.69
589
8.49
619
9.32
15000
359
3.99
401
4.77
437
5.48
471
6.24
504
6.99
537
7.82
566
8.62
595
9.42
625
10.27
16000
376
4.72
418
5.60
452
6.32
485
7.14
515
7.92
548
8.77
578
9.65
604
10.49
632
11.36
17000
394
5.53
434
6.50
468
7.26
500
8.12
529
8.97
558
9.79
589 10.73 616
11.65
641
12.54
18000
413
6.42
451
7.48
485
8.34
515
9.18
544 10.11 571 10.99 598 11.89 628
12.88
654
13.87
19000
431
7.42
469
8.55
501
9.53
530 10.37 559 11.34 585 12.29 611 13.22 637
14.17
665
15.24
20000
449
8.52
486
9.72
518 10.83 547 11.69 573 12.66 600 13.69 625 14.70 648
15.64
675
16.71
CFM Std.
Air
Total Static Pressure (in. wg)
1
2.50
2.75
3.00
3.25
3.50
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
12000
640
8.45
670
9.25
700 10.03 727 10.81 755 11.61
13000
640
9.23
671 10.12 701 10.98 729 11.85 756 12.69
14000
647 10.16 674 11.04 700 11.89 729 12.85 757 13.79
15000
653 11.14 680 12.05 706 12.97 731 13.89 757 14.86
16000
659 12.23 687 13.16 713 14.14 738 15.10 762 16.10
17000
666 13.45 694 14.42 719 15.37 744 16.39 768 17.39
18000
677 14.81 700 15.76 726 16.78 751 17.77 774 18.81
19000
690 16.29 711 17.27 734 18.29 758 19.34 782 20.41
20000
701 17.83 724 18.91 745 19.94 765 20.99 788 22.12
Notes:
1.
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 heating system, optional roof curb).
2.
The pressure drop from the supply fan to the space cannot exceed 2.50".
3.
Maximum air flow for 40 ton — 17,600 cfm, 50 ton — 20,000 cfm.
4.
Maximum motor horsepower for 40 ton — 15 hp, 50 ton — 20 hp.
