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Table 8 — Fan Performance (Forward Curved) — 48/50MP62L*
AIRFLOW
(Cfm)
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.50 0.75 1.00 1.25 1.50 1.75
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
16,000 346 3.4 382 4.1 415 5.0 448 6.0 478 7.2 508 8.6
18,000 371 4.7 404 5.5 436 6.4 466 7.4 494 8.6 522 10.0
20,000 398 6.3 428 7.2 458 8.2 486 9.3 513 10.5 539 11.9
22,000 426 8.4 454 9.4 481 10.5 508 11.6 533 12.9 558 14.3
24,000 455 11.0 481 12.1 506 13.3 531 14.5 555 15.8 578 17.3
26,000 484 14.2 508 15.4 532 16.6 555 18.0 578 19.4 600 20.9
28,000 514 18.0 537 19.3 559 20.7 581 22.1 602 23.6 623 25.2
30,000 544 22.5 566 23.9 587 25.4 608 26.9 628 28.5 648 30.2
32,000 575 27.9 595 29.4 615 30.9 635 32.6 654 34.3 673 36.1
AIRFLOW
(Cfm)
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
2.00 2.25 2.50 2.75
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
16,000 536 10.1 563 11.9 590 13.9 615 16.0
18,000 549 11.5 575 13.2 600 15.1 624 17.1
20,000 564 13.4 589 15.1 613 16.9 636 18.9
22,000 582 15.8 605 17.5 628 19.3 650 21.3
24,000 601 18.9 623 20.6 645 22.4 666 24.3
26,000 622 22.5 643 24.3 664 26.1 684 28.1
28,000 644 26.9 664 28.7 684 30.6 703 32.6
30,000 667 32.0 686 33.9 705 35.8 724 37.9
32,000 692 38.0 710 39.9 728 42.0 746 44.1
LEGEND
Bhp — Brake Horsepower
*Refer to Fan Performance, 48MP Units section, for correct procedure on 48MP units.
NOTES:
1. Fan performance is based on wet coils and clean 2-in. filters.
2. Conversion — Bhp to kW:
Bhp × .746
kW =
Motor efficiency
See Table 1 for motor efficiency.
Table 9 — Fan Performance (Forward Curved) — 48/50MP70M*
AIRFLOW
(Cfm)
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.50 0.75 1.00 1.25 1.50 1.75
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
18,000 365 6.4 398 7.4 432 8.5 465 9.8 499 11.1 532 12.6
20,000 391 8.2 421 9.3 451 10.4 482 11.7 512 13.1 542 14.5
22,000 418 10.4 446 11.5 473 12.7 501 14.0 528 15.4 556 16.9
24,000 447 12.9 472 14.1 497 15.4 523 16.8 548 18.2 573 19.7
26,000 476 15.9 499 17.2 523 18.6 546 20.0 569 21.5 592 23.0
28,000 506 19.4 527 20.8 549 22.2 571 23.6 592 25.2 614 26.8
30,000 536 23.4 556 24.8 576 26.3 596 27.8 617 29.4 637 31.0
32,000 566 27.9 585 29.4 604 30.9 623 32.5 642 34.2 661 35.9
34,000 597 32.9 615 34.5 633 36.1 651 37.8 668 39.5 686 41.3
36,000 628 38.6 645 40.2 662 41.9 679 43.7 695 45.4 712 47.3
AIRFLOW
(Cfm)
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
2.00 2.25 2.50 2.75 300 325
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
18,000 565 14.2 598 16.0 631 17.8 664 19.9 696 22.1 729 24.4
20,000 572 16.1 602 17.8 631 19.6 661 21.5 691 23.6 720 25.8
22,000 583 18.5 610 20.2 638 21.9 665 23.8 692 25.8 719 27.9
24,000 598 21.3 623 23.0 648 24.7 673 26.6 698 28.5 723 30.6
26,000 616 24.6 639 26.3 662 28.1 685 29.9 708 31.9 731 33.9
28,000 635 28.4 657 30.1 679 31.9 700 33.8 722 35.7 743 37.7
30,000 657 32.7 677 34.5 697 36.3 717 38.2 737 40.2 758 42.2
32,000 680 37.6 699 39.4 718 41.3 737 43.2 756 45.2 774 47.2
34,000 704 43.1 722 44.9 740 46.8 757 48.8 775 50.8 793 52.9
36,000 729 49.1 746 51.0 763 53.0 780 55.0 796 57.1 813 59.2
LEGEND
Bhp — Brake Horsepower
*Refer to Fan Performance, 48MP Units section, for correct procedure on 48MP units.
NOTES:
1. Fan performance is based on wet coils and clean 2-in. filters.
2. Conversion — Bhp to kW:
Bhp × .746
kW =
Motor efficiency
See Table 1 for motor efficiency.
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