Bryant COMMERCIAL SINGLE PACKAGE ROOFTOP GAS HEAT/ELECTRIC COOLING 581B - Manual (Page 27)

27
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 1083 0.74 1134 0.80 1185 0.88 1331 0.99 1374 1.09
1300 1121 0.89 1171 0.94 1219 1.00 1268 1.10 1309 1.21
1400 1153 1.00 1210 1.12 1257 1.17 1307 1.25 1349 1.37
1500 1180 1.13 1241 1.27 1295 1.37 1339 1.43 1382 1.57
1600 1207 1.25 1269 1.40 1326 1.54 1376 1.65 1420 1.81
1700 1235 1.37 1296 1.53 1354 1.70 1407 1.84 1452 2.02
1800 1263 1.49 1323 1.67 1381 1.85 1436 2.02 1482 2.22
1900 1294 1.63 1351 1.81 1408 2.00 1463 2.19 — —
2000 1325 1.78 1362 1.97 1436 2.16 1489 2.36 — —
Bhp — Brake Horsepower Input to Fan
FIOP — Factory-Installed Option