Specifications

24
PERFORMANCE DATA (cont)
FAN PERFORMANCE — VERTICAL DISCHARGE UNITS
LEGEND
Bhp —
Brake Horsepower Input to Fan
NOTES:
1.
Boldface
indicates a field-supplied drive is required. (See Note 5.)
2. Maximum continuous bhp is 1.20 for standard motors; 2.40 for high-static
motors. 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 prema-
ture motor failure. Unit warranty will not be affected. For additional
information on motor performance, refer to Evaporator-Fan Motor Data
tables on pages 42 and 43.
3. Values include losses for filters, unit casing, and wet coils. See page 43 for
accessory/FIOP static pressure information.
4. Use of a field-supplied motor may affect wire sizing. Contact Bryant repre-
sentative to verify.
5. Motor drive range: 760 to 1090 rpm for standard motors; 1075 to 1455 rpm
for high-static motors. All other rpms require field-supplied drive.
6. Interpolation is permissible. Do not extrapolate.
551B036 (3 TONS) — STANDARD MOTOR (BELT DRIVE)
Airflow
(Cfm)
External Static Pressure (in. wg)
0.1 0.2 0.3 0.4 0.5 0.6
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
900 581 0.12 673 0.18 736 0.22
805 0.25 865 0.29 911 0.34
1000 644 0.19 709 0.22
782 0.28 835 0.30 900 0.35 937 0.38
1100 687 0.22 746 0.26
806 0.30 867 0.35 929 0.40 964 0.40
1200 733 0.26
785 0.32 843 0.35 903 0.41 960 0.47 994 0.50
1300 754 0.29
826 0.38 891 0.43 942 0.48 991 0.53 1047 0.60
1400
810 0.35 868 0.45 937 0.51 984 0.57 1032 0.62 1067 0.67
1500
841 0.42 911 0.53 985 0.61 1029 0.66 1073 0.72
1109 0.77
551B036 (3 TONS) — STANDARD MOTOR (BELT DRIVE) (cont)
Airflow
(Cfm)
External Static Pressure (in. wg)
0.7 0.8 0.9 1.0 1.1 1.2
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
900
957 0.39 988 0.43 1039 0.45 1061 0.47 1083 0.53
1105 0.57
1000
9920.4410390.4910610.5110860.55
1111 0.59 1136 0.63
1100
1013 0.49 1068 0.55 1090 0.58
1109 0.61 1127 0.64 1145 0.67
1200
1045 0.56 1090 0.64
1109 0.64 1156 0.68 1203 0.71 1250 0.74
1300
1075 0.64
1122 0.70 1152 0.72 1190 0.76 1228 0.80 1266 0.84
1400 1110 0.73 1160 0.84 1181 0.81 1237 0.85 1293 0.89 1349 0.93
1500 1150 0.82 1190 1.00 1225 0.90 1271 0.95 1317 1.00 1363 1.05
551B036 (3 TONS) — HIGH-STATIC MOTOR (BELT DRIVE)
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
900 673 0.18 805 0.25 911 0.34 988 0.43 1061 0.47
1000 709 0.22 836 0.30 937 0.38 1039 0.49
1086 0.55
1100 746 0.28 867 0.35 964 0.40 1068 0.55
1109 0.61
1200 785 0.32 903 0.41 984 0.50
1090 0.64 1156 0.68
1300 826 0.38 942 0.48 1047 0.60
1122 0.70 1190 0.76
1400 868 0.45 984 0.57
1087 0.67 1160 0.84 1237 0.85
1500 911 0.53 1029 0.66
1109 0.77 1190 1.00 1271 0.95
551B036 (3 TONS) — HIGH-STATIC MOTOR (BELT DRIVE) (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
900
1105 0.57 1140 0.63 1170 0.68 1198 0.73 1224 0.77
1000
1136 0.63 1172 0.69 1203 0.75 1232 0.80 1258 0.86
1100
1145 0.67 1181 0.73 1213 0.80 1242 0.85 1268 0.91
1200
1210 0.74 1248 0.81 1282 0.88 1312 0.94 1340 1.01
1300
1266 0.84 1306 0.92 1341 1.00 1373 1.07 1402 1.14
1400
1349 0.93 1391 1.02 1429 1.11
1463 1.19 1494 1.26
1500
1363 1.05 1406 1.15 1444 1.25
1478 1.34 1510 1.43