581B Fan Rpm At Motor Pulley Setting With Standard Motor; 581B Fan Rpm At Motor Pulley Setting With High-Static Motor; Evaporator-Fan Motor Data — Standard Motor - Bryant COMMERCIAL SINGLE PACKAGE ROOFTOP GAS HEAT/ELECTRIC COOLING 581B User Manual

Durapac plus series sizes 036-150 commercial single package rooftop gas heat/electric cooling units
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STANDARD MOTOR
Unit
581B
0
036
1090
048
1185
060
1460
(single-phase)
060 (3-phase)
1585
and 072
090,102
1085
120
1080
150
1260

581B FAN RPM AT MOTOR PULLEY SETTING WITH HIGH-STATIC MOTOR

HIGH-STATIC MOTOR
Unit
581B
0
1
/
2
036
1455
1423
048
1455
1423
060
1685
1589
072
1685
1589
090
1080
1025
102
1080
1025
120
1130
1112
UNIT
UNIT
581B
PHASE
Single
036
Three
Single
048
Three
Single
060
Three
072
Three
090,102
Three
120
Three
150
Three
LEGEND
Bhp — Brake Horsepower
PERFORMANCE DATA (cont)

581B FAN RPM AT MOTOR PULLEY SETTING WITH STANDARD MOTOR

1
/
1
1
1
/
2
2
1055
1025
990
1150
1115
1080
1425
1385
1350
1540
1490
1445
1060
1035
1010
1060
1035
1015
1220
1185
1155
1
1
1
/
2
2
1392
1360
1328
1392
1360
1328
1557
1525
1493
1557
1525
1493
1007
988
970
1007
988
970
1087
1062
1037
EVAPORATOR-FAN MOTOR DATA — STANDARD MOTOR
MAXIMUM
CONTINUOUS BHP*
1.20
1.20
1.20
1.20
1.30
2.40
2.40
2.90
3.70
5.25
Motor Pulley Turns Open
2
2
1
/
3
3
2
960
925
890
860
1045
1015
980
945
1315
1275
1240
1205
1400
1350
1305
1260
985
960
935
910
990
970
950
930
1130
1100
1075
1045
Motor Pulley Turns Open
2
1
/
3
3
1
/
2
2
1297
1265
1233
1297
1265
1233
1460
1428
1396
1460
1428
1396
952
933
915
952
933
915
1212
987
962
MAXIMUM
OPERATING WATTS*
1000
1000
1000
1000
1650
2120
2120
2615
3775
4400
*Extensive motor and electrical testing on these units ensures that the
full horsepower and watts range of the motors can be utilized with con-
fidence. Using your fan motors up to the ratings shown in this table will
not result in nuisance tripping or premature motor failure. Unit warranty
will not be affected.
41
1
/
4
4
1
/
5
2
2
825
795
760
910
875
840
1165
1130
1095
1210
1165
1120
890
865
840
905
885
860
1015
990
960
4
4
1
/
5
2
1202
1170
1138
1202
1170
1138
1364
1332
1300
1364
1332
1300
897
878
860
897
878
860
937
912
887
UNIT VOLTAGE
208/230
208/230
460
575
208/230
208/230
460
575
208/230
208/230
460
575
208/230
460
575
208/230
460
575
208/230
460
575
208/230
460
575
5
1
/
6
2
1055
1020
930
900
5
1
/
6
2
1107
1075
1107
1075
962
830
MAXIMUM
AMP DRAW
4.9
4.9
2.2
2.2
4.9
4.9
2.2
2.2
10.1
6.7
3.0
3.0
6.7
3.0
3.0
8.6
3.9
3.9
12.2
5.5
5.5
17.3
8.5
8.5

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