Bryant 581B036--072 Installation Instructions Manual page 39

Single-package rooftop heating/cooling standard and low nox units
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Table 33—Fan Performance 581B 072 — Horizontal Discharge Units; Standard Motor (Belt Drive)*
AIRFLOW
AIRFLOW
0.2
CFM
CFM
Rpm
Bhp
1800
913
0.64
1900
952
0.73
2000
992
0.84
2100
1032
0.95
2200
1073
1.07
2300
1114
1.21
2400
1155
1.36
2500
1196
1.51
2600
1238
1.69
2700
1280
1.87
2800
1322
2.07
2900
1364
2.28
3000
AIRFLOW
AIRFLOW
1.2
CFM
CFM
Rpm
Bhp
Watts
1800
1322
1.56
1900
1351
1.68
2000
1380
1.82
2100
1411
1.97
2200
1441
2.13
2300
1473
2.30
2400
2500
2600
2700
2800
2900
3000
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
Watts
Rpm
Bhp
Watts
569
1010
0.80
715
652
1046
0.91
805
744
1083
1.02
903
844
1120
1.14
1010
954
1158
1.27
1127
1074
1196
1.41
1254
1204
1234
1.57
1391
1345
1273
1.73
1538
1497
1312
1.91
1697
1660
1352
2.10
1867
1835
1392
2.31
2050
2023
EXTERNAL STATIC PRESSURE (in. wg)
1.4
Rpm
Bhp
Watts
1382
1388
1.77
1568
1495
1416
1.90
1686
1617
1444
2.04
1814
1748
1473
2.20
1950
1890
1503
2.36
2097
2041
0.6
Rpm
Bhp
Watts
Rpm
1098
0.98
869
1178
1131
1.09
965
1210
1166
1.21
1070
1242
1200
1.33
1184
1275
1236
1.47
1307
1308
1272
1.62
1440
1343
1308
1.78
1584
1377
1345
1.96
1738
1412
1382
2.14
1904
1448
1420
2.34
2081
1.6
Rpm
Bhp
Watts
Rpm
1451
1.98
1762
1510
1477
2.12
1885
1536
1505
2.27
2017
LEGEND
Bhp — Brake Horsepower
Watts — Input Watts to Motor
*Motor drive range: 1119 to 1585 rpm. All other rpms require field-supplied drive.
39
0.8
1.0
Bhp
Watts
Rpm
Bhp
1.16
1032
1252
1.35
1.28
1134
1282
1.48
1.40
1245
1313
1.61
1.54
1365
1345
1.75
1.68
1495
1377
1.90
1.84
1634
1409
2.07
2.01
1784
1443
2.24
2.19
1945
2.38
2117
1.8
2.0
Bhp
Watts
Rpm
Bhp
2.21
1962
2.35
2090
Watts
1203
1311
1427
1553
1689
1834
1990
Watts

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