Bryant COMMERCIAL SINGLE PACKAGE ROOFTOP GAS HEAT/ELECTRIC COOLING 581B - Manual (Page 26)

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PERFORMANCE DATA (cont)
FAN PERFORMANCE — VERTICAL DISCHARGE UNITS
LEGEND
NOTES:
1. Boldface indicates field-supplied drive required. (See Note 2.)
2. Motor drive range is 760 to 1090 rpm for standard motor; 1075 to 1455 rpm
for high-static motor. All other rpms require a field-supplied drive.
3. Values include losses for filters, unit casing, and wet coils. See page 40 for
accessory/FIOP static pressure information.
4. Maximum continuous bhp is 1.20 for standard motor, 2.40 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.
5. Use of a field-supplied motor may affect wire sizing. Contact your Bryant
representative to verify.
6. Interpolation is permissible. Do not extrapolate.
581B036 (3 TONS) — STANDARD MOTOR
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
581B036 (3 TONS) — STANDARD MOTOR (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 0.47 1061 0.51 1083 0.54 1105 0.58
1000 992 0.44 1039 0.49 1061 0.55 1088 0.60 1111 0.66 1136 0.72
1100 1013 0.49 1068 0.55 1091 0.61 1109 0.66 1127 0.73 1145 0.80
1200 1045 0.56 1090 0.64 1109 0.68 1156 0.73 1203 0.81 1250 0.86
1300 1075 0.64 1122 0.70 1152 0.76 1190 0.82 1228 0.87 1266 0.94
1400 1110 0.73 1160 0.78 1181 0.83 1237 0.88 1293 0.94 1349 0.99
1500 1150 0.78 1190 0.84 1225 0.89 1271 0.95 1371 1.00 1383 1.05
581B036 (3 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
900 673 0.18 805 0.25 911 0.34 988 0.43 1061 0.47
1000 709 0.22 835 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 0.41 994 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
581B036 (3 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
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 1465 1.25 1500 1.34 1532 1.43
Bhp — Brake Horsepower Input to Fan
FIOP — Factory-Installed Option