Bryant 581B Gas Heater User Manual


 
49
PERFORMANCE DATA (cont)
FAN PERFORMANCE — VERTICAL DISCHARGE UNITS (cont)
LEGEND
*Motor drive range: 685 to 935 rpm. All other rpms require field-supplied
drive.
NOTES:
1. Boldface indicates field-supplied drive is required.
2. Maximum continuous bhp is 2.40.
3. See page 74 for General Fan Performance Notes.
580F103 (8
1
/
2
TONS) — STANDARD MOTOR (BELT DRIVE)*
Airflow
(Cfm)
External Static Pressure (in. wg)
0.2 0.4 0.6 0.8 1.0
Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts
2550 558 0.72 673 635 0.97 900 702 1.23 1146 763 1.51 1409 818 1.81 1689
2600 566 0.76 705 642 1.00 935 709 1.27 1183 769 1.55 1450 824 1.86 1732
2700 582 0.83 771 656 1.08 1008 721 1.35 1263 781 1.65 1535 835 1.95 1823
2800 597 0.90 842 670 1.16 1086 734 1.44 1347 793 1.74 1625 847 2.06 1917
2900 613 0.98 918 684 1.25 1169 748 1.54 1436 805 1.84 1720 859 2.16 2019
3000 629 1.07 999 699 1.35 1256 761 1.64 1530 818 1.95 1820 871 2.28 2125
3100 645 1.16 1085 713 1.45 1349 775 1.75 1630 831 2.06 1925 883 2.40 2235
3200 662 1.26 1176 728 1.55 1448 788 1.86 1734 844 2.18 2036
3300 678 1.36 1272 743 1.66 1551 802 1.98 1845 857 2.31 2152
3400 694 1.47 1374 758 1.78 1660 816 2.10 1961
3500 711 1.59 1482 773 1.90 1775 831 2.23 2082
3600 727 1.71 1596 789 2.03 1896 845 2.37 2210
3700 744 1.84 1716 804 2.17 2023
3750 752 1.91 1778 812 2.24 2089
3800 761 1.98 1842 820 2.31 2156
3900 777 2.12 1974
4000 7942.272113—— —— —— — ——
4100 ——————————————
4200 ——————————————
4250 ——————————————
580F103 (8
1
/
2
TONS) — STANDARD MOTOR (BELT DRIVE)* (cont)
Airflow
(Cfm)
External Static Pressure (in. wg)
1.2 1.4 1.6 1.8 2.0
Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts
2550 870 2.13 1985
2600 875 2.18 2031
2700 886 2.28 2126
2800 897 2.39 2227
2900 ——————————————
3000 ——————————————
3100 ——————————————
3200 ——————————————
3300 ——————————————
3400 ——————————————
3500 ——————————————
3600 ——————————————
3700 ——————————————
3750 ——————————————
3800 ——————————————
3900 ——————————————
4000 ——————————————
4100 ——————————————
4200 ——————————————
4250 ——————————————
Bhp Brake Horsepower Input to Fan
Watts Input Watts to Motor
580F036-151