Bryant 551B Installation Instructions Manual page 37

Single-package rooftop electric cooling units with optional electric heat
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Table 19—Fan Performance 551B 060, 551C 060 Single-Phase — Vertical Discharge Units; Standard Motor (Belt Drive)*
AIRFLOW
AIRFLOW
0.2
CFM
CFM
Rpm
Bhp
1500
790
0.40
1600
828
0.46
1700
866
0.54
1800
905
0.62
1900
944
0.71
2000
983
0.81
2100
1023
0.92
2200
1063
1.05
2300
1104
1.18
2400
2500
AIRFLOW
AIRFLOW
1.2
CFM
CFM
Rpm
Bhp
1500
1224
1.18
1600
1250
1.27
1700
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.
EXTERNAL STATIC PRESSURE (in. wg)
0.4
Watts
Rpm
Bhp
Watts
353
897
0.53
471
412
931
0.60
536
478
966
0.68
608
551
1001
0.77
687
633
1037
0.87
774
723
1073
0.98
870
821
1110
1.10
975
929
1147
1.23
1089
1046
EXTERNAL STATIC PRESSURE (in. wg)
1.4
Watts
Rpm
Bhp
Watts
1045
1128
0.6
Rpm
Bhp
Watts
Rpm
991
0.68
600
1075
1022
0.75
670
1104
1054
0.84
747
1134
1087
0.94
832
1165
1120
1.04
925
1197
1154
1.16
1026
1189
1.28
1137
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.
37
0.8
1.0
Bhp
Watts
Rpm
Bhp
0.83
739
1152
1.00
0.92
813
1180
1.09
1.01
895
1208
1.19
1.11
985
1238
1.29
1.22
1084
1.8
2.0
Bhp
Watts
Rpm
Bhp
Watts
888
966
1053
1148
Watts

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