Bryant 581B036--072 Installation Instructions Manual page 33

Single-package rooftop heating/cooling standard and low nox units
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Table 23—Fan Performance 581C 072 — Vertical Discharge Units; Standard Motor (Belt Drive)*
AIRFLOW
AIRFLOW
0.2
CFM
CFM
Rpm
Bhp
1800
967
0.63
1900
1008
0.72
2000
1049
0.82
2100
1091
0.93
2200
1133
1.05
2300
1176
1.18
2400
1218
1.32
2500
1261
1.47
2600
1305
1.63
2700
1348
1.80
2800
1392
1.99
2900
1435
2.19
3000
1479
2.40
AIRFLOW
AIRFLOW
1.2
CFM
CFM
Rpm
Bhp
Watts
1800
1406
1.43
1900
1438
1.58
2000
1470
1.73
2100
1502
1.89
2200
1535
2.06
2300
1569
2.25
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
563
1075
0.80
715
643
1112
0.91
805
731
1151
1.02
903
827
1189
1.14
1008
933
1229
1.26
1123
1047
1268
1.40
1247
1170
1308
1.55
1380
1304
1349
1.72
1523
1448
1390
1.89
1677
1602
1431
2.07
1841
1768
1472
2.27
2016
1945
2135
EXTERNAL STATIC PRESSURE (in. wg)
1.4
Rpm
Bhp
Watts
1273
1475
1.58
1403
1401
1505
1.73
1541
1537
1537
1.90
1686
1681
1568
2.07
1840
1834
1600
2.25
2002
1996
0.6
Rpm
Bhp
Watts
Rpm
1170
0.97
861
1255
1205
1.08
960
1289
1241
1.20
1068
1323
1278
1.33
1183
1358
1315
1.47
1308
1393
1352
1.62
1441
1429
1390
1.78
1584
1466
1429
1.96
1736
1503
1468
2.14
1900
1540
1507
2.33
2073
1.6
Rpm
Bhp
Watts
Rpm
1540
1.72
1531
1601
1569
1.89
1678
1630
1600
2.06
1833
1660
1631
2.25
1996
LEGEND
Bhp — Brake Horsepower
Watts — Input Watts to Motor
*Motor drive range: 1119 to 1585 rpm. All other rpms require field-supplied drive.
33
0.8
1.0
Bhp
Watts
Rpm
Bhp
1.13
1002
1333
1.28
1.25
1111
1366
1.42
1.38
1228
1399
1.56
1.52
1353
1433
1.71
1.67
1487
1467
1.87
1.84
1630
1501
2.04
2.01
1782
1537
2.23
2.19
1945
2.38
2117
1.8
2.0
Bhp
Watts
Rpm
Bhp
1.87
1657
1660
2.00
2.04
1813
1689
2.19
2.23
1977
1718
2.38
Watts
1139
1258
1384
1519
1662
1815
1977
Watts
1780
1945
2118

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