Bryant COMMERCIAL SINGLE PACKAGE ROOFTOP GAS HEAT/ELECTRIC COOLING 581B User Manual page 27

581B048 (4 TONS) — STANDARD MOTOR
AIRFLOW
0.1
(Cfm)
Rpm Bhp
1200 596 0.20
1300 633 0.24
672 0.30
1400
711 0.35
1500
751 0.42
1600
791 0.49
1700
831 0.58
1800
872 0.67
1900
913 0.77
2000
581B048 (4 TONS) — STANDARD MOTOR (cont)
AIRFLOW
0.9
(Cfm)
Rpm Bhp
1200 993 0.65
1021 0.74
1300
1049 0.82
1400
1077 0.92
1500
1107 1.00
1600
1137 1.12
1700
1167 1.23
1800
1900 1197 1.35
1229 1.48
2000
581B048 (4 TONS) — HIGH-STATIC MOTOR
AIRFLOW
(Cfm)
Rpm
1200 665
1300 699
1400 735
1500 770
1600 835
1700 873
1800 881
1900 919
2000 958
581B048 (4 TONS) — HIGH-STATIC MOTOR (cont)
AIRFLOW
(Cfm)
Rpm
1200 1083
1300 1121
1400 1153
1500 1180
1600 1207
1700 1235
1800 1263
1900 1294
2000 1325
LEGEND
Bhp — Brake Horsepower Input to Fan
FIOP — Factory-Installed Option
NOTES:
1. Boldface indicates field-supplied drive required. (See Note 3.)
2. indicates field-supplied motor and drive required.
3. Motor drive range is 840 to 1185 rpm for standard motor; 1075 to 1455 rpm
for high-static motor. All other rpms require a field-supplied drive.
4. Values include losses for filters, unit casing, and wet coils. See page 40 for
accessory/FIOP static pressure information.
PERFORMANCE DATA (cont)
FAN PERFORMANCE — VERTICAL DISCHARGE UNITS (cont)
EXTERNAL STATIC PRESSURE (in. wg)
0.2 0.3
Rpm Bhp Rpm
665 0.25 722
699 0.30 754
735 0.36 788
770 0.42 822
835 0.49 871
873 0.57 907
881 0.66 929
919 0.75 965
958 0.86 1002
EXTERNAL STATIC PRESSURE (in. wg)
1.0 1.1
Rpm Bhp Rpm
1028 0.69 1056
1058 0.80 1090
1086 0.89 1120
1113 0.99 1147
1141 1.09 1174
1171 1.20 1203
1202 1.32 1233
1232 1.45 1263
1262 1.58 1294
0.2 0.4
Bhp Rpm
0.25 779
0.30 809
0.36 840
0.42 873
0.49 907
0.57 941
0.66 976
0.75 1011
0.86 1046
1.2 1.4
Bhp Rpm
0.74 1134
0.89 1171
1.00 1210
1.13 1241
1.25 1269
1.37 1296
1.49 1323
1.63 1351
1.78 1362
0.4
Bhp Rpm Bhp Rpm
0.31 779 0.36
0.36 809 0.42
0.42 840 0.48
0.49 873 0.55
0.56 907 0.63
0.65 941 0.72 1024
0.74 976 0.81 1057
0.84 1011 0.92 1091
0.95 1046 1.03 1125
1.2
Bhp Rpm Bhp Rpm
0.72 1083 0.74 1134
0.85 1121 0.89 1171
0.96 1153 1.00 1210
1.06 1180 1.13 1241
1.17 1207 1.25 1269
1.29 1235 1.37 1296
1.41 1263 1.49 1323
1.54 1294 1.63 1351
1.68 1325 1.78 1362
EXTERNAL STATIC PRESSURE (in. wg)
0.6
Bhp Rpm Bhp
0.36 872 0.48
0.42 902 0.55
0.48 933 0.62
0.55 963 0.69
0.63 993 0.77
0.72 1024 0.87
0.81 1057 0.97
0.92 1091 1.08
1.03 1125 1.21
EXTERNAL STATIC PRESSURE (in. wg)
1.6
Bhp Rpm Bhp
0.80 1185 0.88
0.94 1219 1.00
1.12 1257 1.17
1.27 1295 1.37
1.40 1326 1.54
1.53 1354 1.70
1.67 1381 1.85
1.81 1408 2.00
1.97 1436 2.16
5. Maximum continuous bhp is 1.2 for standard motor, 2.4 for high-static motor.
Extensive motor and electrical testing on these units ensures that the full
range of the motor can be utilized with confidence. Using your fan motors up
to the ratings shown will not result in nuisance tripping or premature motor
failure. Unit warranty will not be affected. See Evaporator-Fan Motor Data
tables on pages 41 and 42 for additional information.
6. Use of a field-supplied motor may affect wire sizing. Contact your Bryant
representative to verify.
7. Interpolation is permissible. Do not extrapolate.
27
0.6 0.7
Bhp Rpm Bhp
872 0.48 915 0.54
902 0.55 943 0.61
933 0.62 972 0.69
963 0.69 1002 0.77
993 0.77 1033 0.85
0.87 1064 0.96
0.97 1095 1.06
1.08 1127 1.17
1.21 1160 1.30
1.4 1.6
Bhp Rpm Bhp
0.80 1185 0.88
0.94 1219 1.00
1.12 1257 1.17
1.27 1295 1.37
1.40 1326 1.54
1.53 1354 1.70
1.67 1381 1.85
1.81 1408 2.00
1.97 1436 2.16
0.8
Rpm Bhp
957 0.60
984 0.67
1011 0.75
1041 0.84
1072 0.93
1103 1.04
1132 1.14
1162 1.25
1195 1.38
1.8
Rpm Bhp
1331 0.99
1268 1.10
1307 1.25
1339 1.43
1376 1.65
1407 1.84
1436 2.02
1463 2.19
1489 2.36
0.8
Rpm Bhp
957 0.60
984 0.67
1011 0.75
1041 0.84
1072 0.93
1103 1.04
1132 1.14
1162 1.25
1195 1.38
1.8
Rpm Bhp
1231 0.99
1268 1.10
1307 1.25
1339 1.43
1376 1.65
1407 1.84
1436 2.02
1463 2.19
1489 2.36
1.0
Rpm Bhp
1028 0.69
1058 0.80
1086 0.89
1113 0.99
1141 1.09
1171 1.20
1202 1.32
1232 1.45
1262 1.58
2.0
Rpm Bhp
1374 1.09
1309 1.21
1349 1.37
1382 1.57
1420 1.81
1452 2.02
1482 2.22
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