Bryant 551B Installation Instructions Manual page 44

Single-package rooftop electric cooling units with optional electric heat
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Table 29—Fan Performance 551B 060, 551C 060 Single-Phase — Horizontal Discharge Units;
AIRFLOW
AIRFLOW
0.2
CFM
CFM
Rpm
Bhp
Watts
1500
724
0.33
1600
757
0.39
1700
790
0.45
1800
823
0.52
1900
857
0.59
2000
892
0.67
2100
927
0.77
2200
962
0.87
2300
997
0.97
2400
1033
1.09
2500
1069
1.22
1084
AIRFLOW
AIRFLOW
1.2
CFM
CFM
Rpm
Bhp
Watts
1500
1188
1.09
1600
1208
1.16
1033
1700
1229
1.24
1103
1800
1900
2000
2100
2200
2300
2400
2500
NOTES:
1. Bold 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
Rpm
Bhp
Watts
295
837
0.45
402
343
866
0.51
455
398
894
0.58
514
458
924
0.65
579
525
955
0.73
650
599
986
0.82
729
680
1017
0.92
815
769
1050
1.02
909
865
1082
1.14
1010
970
1115
1.26
1120
EXTERNAL STATIC PRESSURE (in. wg)
1.4
Rpm
Bhp
Watts
970
1261
1.29
1143
0.6
Rpm
Bhp
Watts
Rpm
937
0.59
524
1028
962
0.65
580
1050
988
0.72
643
1074
1015
0.80
712
1099
1043
0.89
787
1125
1072
0.98
870
1151
1101
1.08
960
1178
1131
1.19
1059
1.6
Rpm
Bhp
Watts
Rpm
LEGEND
Bhp — Brake Horsepower
Watts — Input Watts to Motor
*Motor drive range: 1035 to 1460 rpm. All other rpms require field-supplied
drive.
44
0.8
1.0
Bhp
Watts
Rpm
Bhp
0.74
660
1111
0.91
0.81
719
1132
0.98
0.88
784
1154
1.06
0.96
857
1177
1.14
1.05
936
1201
1.23
1.15
1022
1.26
1116
1.8
2.0
Bhp
Watts
Rpm
Bhp
Watts
808
870
938
1013
1096
Watts

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