Carrier WeatherExpert 48N2 Controls, Start-Up, Operation, Service, And Troubleshooting page 18

Table 13 — Fan Performance — 48/50N 90 Nominal Ton Units High-Static Return Fan Data
AIRFLOW
0.2
(cfm)
Rpm Bhp
15,000 266 1.19
18,000 307 1.82
21,000 349 2.65
24,000
392 3.75
27,000 436 5.13
30,000 481 6.83
33,000 526 8.90
36,000 571 11.34
39,000 616 14.24
42,000
661 17.60
45,000 707 21.46
48,000 753 25.86
51,000 798 30.83
52,500 821 33.55
AIRFLOW
1.2
(cfm)
Rpm Bhp
15,000 413 4.05
18,000 435 5.01
21,000 462 6.20
24,000
493 7.65
27,000 527 9.39
30,000 563 11.46
33,000 601 13.90
36,000 641 16.74
39,000 681 20.02
42,000
722 23.76
45,000 763 28.01
48,000 806 32.80
51,000 848 38.17
52,500 870 41.08
AIRFLOW
2.2
(cfm)
Rpm Bhp
15,000 537 7.54
18,000 547 8.89
21,000 563 10.42
24,000 586 12.20
27,000 612 14.28
30,000
641 16.69
33,000
673 19.47
36,000 707 22.67
39,000 743 26.29
42,000 780 30.40
45,000 818 35.02
48,000
857 40.18
51,000
897 45.93
52,500 918 49.03
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.4
Rpm Bhp Rpm
298 1.69 328
334 2.38 360
373 3.30 396
413 4.47 434
455 5.92 474
498 7.70 515
541 9.85 556
585 12.39 599
629 15.35 642
674 18.79 686
718 22.73 730
763 27.21 774
808 32.26 818
831 35.02 841
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
1.4
Rpm Bhp Rpm
439 4.71 465
458 5.75 481
483 7.00 504
512 8.51 531
545 10.32 562
579 12.47 595
616 14.97 631
654 17.89 668
693 21.23 706
734 25.05 745
775 29.38 786
816 34.25 827
858 39.69 868
879 42.63 889
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
2.4
Rpm Bhp Rpm
560 8.29 582
568 9.72 588
583 11.32 601
603 13.18 621
628 15.32 644
656 17.80 671
687 20.65 701
720 23.91 733
755 27.61 767
792 31.78 803
829 36.46 840
868 41.71 878
907 47.52 917
927 50.66 936
18
0.6 0.8
Bhp Rpm
2.23 358
2.99 386
3.97 418
5.21 454
6.74 492
8.60 531
10.82 572
13.44 613
16.48 655
20.00 698
24.01 741
28.58 785
33.72 828
36.51 850
1.6 1.8
Bhp Rpm
5.39 489
6.50 503
7.82 524
9.40 549
11.28 579
13.49 611
16.07 645
19.05 681
22.47 718
26.36 757
30.76 797
35.71 837
41.22 878
44.21 899
2.6 2.8
Bhp Rpm
9.05 604
10.56 608
12.25 620
14.17 638
16.38 660
18.93 686
21.85 715
25.17 746
28.93 779
33.18 814
37.94 851
43.24 888
49.13 926
52.30 946
1.0
Bhp Rpm Bhp
2.80 386 3.41
3.63 411 4.31
4.69 440 5.43
6.00 474 6.81
7.60 510 8.48
9.53 547 10.48
11.82 587 12.85
14.51 627 15.62
17.64 668 18.81
21.23 710 22.49
25.34 752 26.66
29.97 795 31.38
35.18 838 36.67
38.01 860 39.53
2.0
Bhp Rpm Bhp
6.09 513 6.81
7.28 525 8.07
8.67 544 9.54
10.31 568 11.25
12.26 595 13.26
14.54 626 15.61
17.19 659 18.32
20.23 694 21.44
23.72 731 25.00
27.68 769 29.03
32.16 807 33.58
37.16 847 38.67
42.77 888 44.35
45.79 908 47.40
3.0
Bhp Rpm Bhp
9.82 625 10.60
11.43 628 12.30
13.18 638 14.14
15.18 655 16.21
17.46 676 18.56
20.08 701 21.24
23.06 728 24.29
26.45 759 27.74
30.29 791 31.65
34.59 826 36.03
39.43 861 40.93
44.80 898 46.38
50.76 936 52.40
53.98 955 55.66