Bryant 581B Gas Heater User Manual


 
67
PERFORMANCE DATA (cont)
FAN PERFORMANCE — HORIZONTAL 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 550 0.69 647 625 0.92 860 692 1.17 1095 754 1.45 1349 811 1.74 1623
2600 558 0.73 677 632 0.96 894 698 1.21 1131 759 1.49 1388 816 1.78 1664
2700 574 0.80 742 645 1.03 964 710 1.29 1207 770 1.58 1469 826 1.88 1749
2800 589 0.87 811 659 1.11 1039 723 1.38 1287 782 1.67 1554 837 1.97 1839
2900 605 0.95 885 673 1.20 1119 736 1.47 1372 794 1.76 1644 848 2.07 1933
3000 621 1.03 963 688 1.29 1204 749 1.57 1463 806 1.87 1740 859 2.18 2033
3100 637 1.12 1046 702 1.39 1293 762 1.67 1558 818 1.97 1840 871 2.29 2139
3200 654 1.22 1135 717 1.49 1388 776 1.78 1658 831 2.09 1946
3300 670 1.32 1228 732 1.60 1488 789 1.89 1764 843 2.21 2057
3400 686 1.42 1328 747 1.71 1593 803 2.01 1876 856 2.33 2174
3500 703 1.54 1433 762 1.83 1705 817 2.14 1993
3600 720 1.66 1543 777 1.95 1822 832 2.27 2116
3700 736 1.78 1660 793 2.09 1944
3750 745 1.85 1721 801 2.15 2008
3800 753 1.91 1783 808 2.22 2074
3900 770 2.05 1912 824 2.37 2209
4000 787 2.20 2047
4100 804 2.35 2189
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 865 2.05 1914 916 2.38 2223
2600 869 2.10 1957
2700 879 2.19 2046
2800 889 2.29 2140
2900 899 2.40 2239
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