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PERFORMANCE DATA (cont)
FAN PERFORMANCE — VERTICAL DISCHARGE UNITS (cont)
LEGEND
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.
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.
581B048 (4 TONS) — STANDARD MOTOR
AIRFLOW
(Cfm)
EXTERNAL STATIC PRESSURE (in. wg)
0.1 0.2 0.3 0.4 0.6 0.7 0.8
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
1200 596 0.20 665 0.25 722 0.31 779 0.36
872 0.48 915 0.54 957 0.60
1300
633 0.24 699 0.30 754 0.36 809 0.42
902 0.55 943 0.61 984 0.67
1400
672 0.30 735 0.36 788 0.42
840 0.48 933 0.62 972 0.69 1011 0.75
1500
711 0.35 770 0.42 822 0.49
873 0.55 963 0.69 1002 0.77 1041 0.84
1600
751 0.42 835 0.49
871 0.56 907 0.63 993 0.77 1033 0.85 1072 0.93
1700
791 0.49
873 0.57 907 0.65 941 0.72 1024 0.87 1064 0.96 1103 1.04
1800
831 0.58
881 0.66 929 0.74 976 0.81 1057 0.97 1095 1.06 1132 1.14
1900
872 0.67 919 0.75 965 0.84 1011 0.92 1091 1.08 1127 1.17
1162 1.25
2000
913 0.77 958 0.86 1002 0.95 1046 1.03
1125 1.21 1160 1.30 1195 1.38
581B048 (4 TONS) — STANDARD MOTOR (cont)
AIRFLOW
(Cfm)
EXTERNAL STATIC PRESSURE (in. wg)
0.9 1.0 1.1 1.2 1.4 1.6 1.8
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
1200
993 0.65 1028 0.69 1056 0.72 1083 0.74 1134 0.80 1185 0.88
1231 0.99
1300
1021 0.74 1058 0.80 1090 0.85 1121 0.89 1171 0.94
1219 1.00 1268 1.10
1400
1049 0.82 1086 0.89 1120 0.96 1153 1.00
1210 1.12 1257 1.17
1307 1.25
1500
1077 0.92 1113 0.99 1147 1.06 1180 1.13
1241 1.27 1295 1.37 1339 1.43
1600
1107 1.00 1141 1.09 1174 1.17
1207 1.25 1269 1.40 1326 1.54 1376 1.65
1700
1137 1.12 1171 1.20
1203 1.29 1235 1.37 1296 1.53 1354 1.70 1407 1.84
1800
1167 1.23 1202 1.32 1233 1.41 1263 1.49 1323 1.67 1381 1.85 1436 2.02
1900
1197 1.35 1232 1.45 1263 1.54 1294 1.63 1351 1.81 1408 2.00 1463 2.19
2000
1229 1.48 1262 1.58 1294 1.68 1325 1.78 1362 1.97 1436 2.16 1489 2.36
581B048 (4 TONS) — HIGH-STATIC MOTOR
AIRFLOW
(Cfm)
EXTERNAL STATIC PRESSURE (in. wg)
0.2 0.4 0.6 0.8 1.0
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
1200 665 0.25 779 0.36 872 0.48 957 0.60 1028 0.69
1300 699 0.30 809 0.42 902 0.55 984 0.67 1058 0.80
1400 735 0.36 840 0.48 933 0.62 1011 0.75
1086 0.89
1500 770 0.42 873 0.55 963 0.69 1041 0.84
1113 0.99
1600 835 0.49 907 0.63 993 0.77 1072 0.93
1141 1.09
1700 873 0.57 941 0.72 1024 0.87
1103 1.04 1171 1.20
1800 881 0.66 976 0.81 1057 0.97
1132 1.14 1202 1.32
1900 919 0.75 1011 0.92
1091 1.08 1162 1.25 1232 1.45
2000 958 0.86 1046 1.03
1125 1.21 1195 1.38 1262 1.58
581B048 (4 TONS) — HIGH-STATIC MOTOR (cont)
AIRFLOW
(Cfm)
EXTERNAL STATIC PRESSURE (in. wg)
1.2 1.4 1.6 1.8 2.0
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
1200
10830.7411340.8011850.8813310.9913741.09
1300
11210.8911710.9412191.0012681.1013091.21
1400
11531.0012101.1212571.1713071.2513491.37
1500
11801.1312411.2712951.3713391.4313821.57
1600
12071.2512691.4013261.5413761.6514201.81
1700
12351.3712961.5313541.7014071.8414522.02
1800
12631.4913231.6713811.8514362.02
1482 2.22
1900
12941.6313511.8114082.00
1463 2.19
——
2000
13251.7813621.9714362.16
1489 2.36
——
Bhp —
Brake Horsepower Input to Fan
FIOP —
Factory-Installed Option