Bryant 581B036--072 Installation Instructions Manual page 30

Table 18—Fan Performance 581B 048, 581C 048 — Vertical Discharge Units; Standard Motor
AIRFLOW AIRFLOW
0.2
CFM CFM
Rpm Bhp Watts
1200
666 0.26
1300
701 0.31
1400
737 0.36
1500
773 0.42
1600
810 0.49
1700
847 0.57
1800
885 0.66
1900
923 0.75
2000
962 0.85
AIRFLOW AIRFLOW
1.2
CFM CFM
Rpm Bhp
1200
1093 0.77
1300
1119 0.87
1400
1147 0.98
1500
1175 1.09
1600
— —
1700
— —
1800
— —
1900
— —
2000
— —
NOTES:
1. Grey cells indicate field-supplied drive is required.
2. Maximum continuous bhp is 2.40.
3. See general fan performance notes.
EXTERNAL STATIC PRESSURE (in. wg)
0.4
Rpm Bhp Watts
257 778 0.37 367
306 810 0.43 426
361 842 0.49 491
422 875 0.57 564
491 909 0.65 643
567 943 0.73 730
652 978 0.83 826
745 1014 0.94 930
847 1049 1.05 1043
EXTERNAL STATIC PRESSURE (in. wg)
1.4
Watts Rpm Bhp Watts
767 1155 0.87 861
866 1181 0.98 970
972 1208 1.09 1086
1086 — — —
— — — —
— — — —
— — — —
— — — —
— — — —
(Belt Drive)*
0.6
Rpm Bhp Watts Rpm
871 0.47 471 952
901 0.54 540 981
931 0.62 616 1010
963 0.70 699 1040
994 0.79 790 1070
1027 0.89 888 1101
1060 1.00 994 1133
1093 1.11 1109 —
— — — —
1.6
Rpm Bhp Watts Rpm
1213 0.96 955 1268
1239 1.08 1073 1294
— — — —
— — — —
— — — —
— — — —
— — — —
— — — —
— — — —
LEGEND
Bhp — Brake Horsepower
Watts — Input Watts to Motor
*Motor drive range: 770 to 1185 rpm. All other rpms require field-supplied drive.
30
0.8 1.0
Bhp Watts Rpm Bhp
0.57 572 1025 0.67
0.65 651 1053 0.76
0.74 738 1081 0.86
0.84 831 1110 0.96
0.94 932 1140 1.08
1.05 1040 1170 1.20
1.16 1157 — —
— — — —
— — — —
1.8 2.0
Bhp Watts Rpm Bhp
1.05 1047 1321 1.14
1.18 1175 — —
— — — —
— — — —
— — — —
— — — —
— — — —
— — — —
— — — —
Watts
670
760
856
960
1070
1189
—
—
—
Watts
1137
—
—
—
—
—
—
—
—