26
Table 26-1  Supply Fan Performance  33 and 42 Ton English
Static Pressure (in. wg)
0.25 0.50 0.75 1.00 1.25 1.50 1.75 2.00 2.25 2.50
SCFM RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
9996. 309. 1.80 360. 2.34 404. 2.88 447. 3.48 487. 4.10 525. 4.75 562. 5.41 597. 6.07 630. 6.75 662. 7.47
10829. 326. 2.19 374. 2.76 416. 3.35 458. 3.97 496. 4.62 532. 5.30 567. 6.01 602. 6.72 634. 7.44 666. 8.16
11662. 344. 2.64 388. 3.24 430. 3.88 468. 4.53 506. 5.21 541. 5.92 574. 6.65 607. 7.41 639. 8.18 670. 8.95
12495. 362. 3.15 403. 3.79 445. 4.48 480. 5.15 517. 5.86 551. 6.60 583. 7.37 614. 8.16 645. 8.97 675. 9.78
13328. 381. 3.72 420. 4.41 459. 5.12 494. 5.85 527. 6.58 562. 7.35 593. 8.15 623. 8.97 652. 9.81 681. 10.68
14161. 399. 4.37 437. 5.11 473. 5.84 509. 6.63 539. 7.39 572. 8.18 604. 9.01 633. 9.86 661. 10.73 688. 11.62
14994. 418. 5.09 454. 5.87 488. 6.64 524. 7.47 554. 8.28 583. 9.10 614. 9.95 643. 10.83 671. 11.73 698. 12.65
15827. 437. 5.89 472. 6.72 504. 7.53 537. 8.37 569. 9.26 596. 10.11 625. 10.98 654. 11.88 681. 12.81 708. 13.77
16660. 457. 6.79 490. 7.65 521. 8.51 551. 9.36 584. 10.31 611. 11.21 637. 12.11 664. 13.04 692. 13.99 718. 14.97
Notes:
1. Fan performance table includes internal resistances of cabinet, wet coil and 2 (50 mm) standard filters. For other components refer to component static
pressure drop table to arrive at available external static pressure.
2. The pressure drops from the supply fan to the space should not exceed 2.5 Wg (620.9 Pa) positive.
3. Max CFM for 33 ton unit - 14660, 42 ton - 16660.
4. Max motor HP for 33 ton unit-(15 HP), 42 ton (20 HP).
Table 26-2  Supply Fan Performance  105-148 KW Metric
Static Pressure (Pascals)
62.1 124,2 186.3 248.1 310.4 372.5 434.6 496.7 558.8 620.9
(L/s) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW)
4717. 309. 1.34 360. 1.74 404. 2.15 447. 2.59 487. 3.06 525. 3.54 562. 4.03 597. 4.53 630. 5.03 662. 5.57
5111. 326. 1.63 374. 2.06 416. 2.50 458. 2.96 496. 3.45 532. 3.96 567. 4.48 602. 5.01 634. 5.54 666. 6.09
5504. 344. 1.97 388. 2.41 430. 2.90 468. 3.37 506. 3.88 541. 4.41 574. 4.96 607. 5.53 639. 6.10 670. 6.67
5897. 362. 2.35 403. 2.82 445. 3.34 480. 3.84 517. 4.37 551. 4.92 583. 5.49 614. 6.08 645. 6.69 675. 7.30
6290. 381. 2.77 420. 3.29 459. 3.82 494. 4.37 527. 4.91 562. 5.48 593. 6.08 623. 6.69 652. 7.32 681. 7.96
6683. 399. 3.26 437. 3.81 473. 4.35 509. 4.95 539. 5.51 572. 6.10 604. 6.72 633. 7.35 661. 8.00 688. 8.67
7076. 418. 3.80 454. 4.38 488. 4.95 524. 5.57 554. 6.18 583. 6.79 614. 7.42 643. 8.07 671. 8.75 698. 9.44
7469. 437. 4.40 472. 5.01 504. 5.62 537. 6.24 569. 6.91 596. 7.54 625. 8.19 654. 8.86 681. 9.55 708. 10.27
7862. 457. 5.06 490. 5.71 521. 6.35 551. 6.98 584. 7.68 611. 8.36 637. 9.03 664. 9.72 692. 10.43 718. 11.17
Notes:
1. Fan performance table includes internal resistances of cabinet, wet coil and 2 (50 mm) standard filters. For other components refer to component static
pressure drop table to arrive at available external static pressure.
2. The pressure drops from the supply fan to the space should not exceed 2.5 Wg (620.9 Pa) positive.
3. Max CFM for 33 ton unit 6825 L/s, 42 ton -7860 L/s
4. Max motor HP for 33 ton unit-11.2 kW (15 HP), 42 ton 14.9 kW (20 HP)
Performance
Data