Bryant 581B036--072 Installation Instructions Manual page 37

Single-package rooftop heating/cooling standard and low nox units
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Table 30—Fan Performance 581B 060, 581C 060 Single-Phase — Horizontal Discharge Units;
AIRFLOW
AIRFLOW
0.2
CFM
CFM
Rpm
Bhp
1500
800
0.39
1600
839
0.46
1700
879
0.54
1800
919
0.63
1900
960
0.73
2000
1001
0.84
2100
1043
0.96
2200
1085
1.09
2300
1127
1.23
2400
2500
AIRFLOW
AIRFLOW
1.2
CFM
CFM
Rpm
Bhp
Watts
1500
1247
0.98
1600
1270
1.07
1700
1295
1.17
1800
1321
1.28
1900
2000
2100
2200
2300
2400
2500
NOTES:
1. Grey cells indicate field-supplied drive is required.
2. Maximum continuous bhp is 1.30.
3. See general fan performance notes.
Standard Motor (Belt Drive)*
EXTERNAL STATIC PRESSURE (in. wg)
0.4
Watts
Rpm
Bhp
Watts
350
904
0.49
438
412
938
0.57
505
483
974
0.65
580
561
1010
0.75
663
648
1047
0.85
754
744
1085
0.96
855
850
1123
1.09
965
966
1162
1.22
1086
1092
EXTERNAL STATIC PRESSURE (in. wg)
1.4
Rpm
Bhp
Watts
873
1320
1.13
1002
952
1342
1.22
1083
1040
1137
0.6
Rpm
Bhp
Watts
Rpm
999
0.60
535
1087
1030
0.68
605
1115
1062
0.77
684
1144
1095
0.87
771
1174
1129
0.98
867
1206
1163
1.09
972
1238
1199
1.22
1086
1.6
Rpm
Bhp
Watts
Rpm
1390
1.28
1137
LEGEND
Bhp — Brake Horsepower
Watts — Input Watts to Motor
*Motor drive range: 1035 to 1460 rpm. All other rpms require field-supplied drive.
37
0.8
1.0
Bhp
Watts
Rpm
Bhp
0.72
640
1169
0.85
0.80
714
1195
0.93
0.90
796
1221
1.03
1.00
886
1250
1.14
1.11
986
1279
1.25
1.23
1095
1.8
2.0
Bhp
Watts
Rpm
Bhp
Watts
753
829
914
1008
1111
Watts

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