Specifications

33
PERFORMANCE DATA (cont)
FAN PERFORMANCE — HORIZONTAL DISCHARGE UNITS
LEGEND
NOTES:
1.
Boldface
indicates a field-supplied drive is required. (See Note 4.)
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
premature 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. 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.
5. Interpolation is permissible. Do not extrapolate.
6. Use of a field-supplied motor may affect wire sizing. Contact your Bryant
representative to verify.
551B036 (3 TONS) — STANDARD MOTOR (BELT DRIVE)
Airflow
(Cfm)
External Static Pressure (in. wg)
0.10.20.30.40.50.6
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
900 526 0.06 584 0.08 656 0.12 734 0.22
818 0.25 875 0.27
1000 570 0.09 627 0.13 738 0.19
800 0.26 848 0.29 895 0.31
1100 614 0.13 670 0.16 758 0.23
812 0.29 863 0.32 914 0.35
1200 658 0.16 710 0.23
780 0.28 840 0.32 889 0.36 938 0.40
1300 703 0.20 752 0.27
808 0.32 868 0.37 916 0.41 963 0.45
1400 725 0.29
776 0.31 845 0.38 891 0.42 937 0.47 983 0.51
1500 755 0.33
816 0.38 870 0.43 924 0.48 969 0.53 1014 0.58
551B036 (3 TONS) — STANDARD MOTOR (BELT DRIVE) (cont)
Airflow
(Cfm)
External Static Pressure (in. wg)
0.70.80.91.01.11.2
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
900
924 0.32 953 0.35 989 0.38 1028 0.42 1074 0.49
1120 0.54
1000
936 0.35 977 0.39 1020 0.44 1064 0.48
1124 0.54 1185 0.60
1100
9600.3910050.4310520.49
1100 0.52 1163 0.59 1225 0.65
1200
9600.4510380.5010760.53
1136 0.59 1201 0.65 1266 0.72
1300
1012 0.51 1061 0.56 1090 0.61
1172 0.65 1239 0.72 1306 0.79
1400
1027 0.56 1071 0.60
1108 0.67 1208 0.70 1278 0.79 1347 0.87
1500
1056 0.63
1097 0.68 1117 0.70 1245 0.74 1315 0.87 1385 0.96
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
900 584 0.08 734 0.22 875 0.27 953 0.35 1028 0.42
1000 627 0.13 800 0.26 895 0.31 977 0.39 1064 0.48
1100 670 0.16 812 0.29 914 0.35 1005 0.43
1100 0.52
1200 710 0.23 840 0.32 936 0.40 1038 0.50
1136 0.59
1300 752 0.27 868 0.37 963 0.45 1061 0.56
1172 0.65
1400 776 0.31 891 0.42 983 0.51 1071 0.60
1208 0.70
1500 816 0.38 924 0.48 1014 0.58
1097 0.68 1245 0.74
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
1120 0.54 1155 0.59 1186 0.64 1215 0.69 1240 0.73
1000
1185 0.60 1222 0.66 1255 0.71 1285 0.77 1312 0.82
1100
1225 0.65 1263 0.71 1298 0.77 1328 0.83 1357 0.88
1200
1266 0.72 1306 0.79 1341 0.86 1373 0.92 1402 0.98
1300
1306 0.79 1347 0.87 1383 0.94 1416 1.01 1446 1.07
1400
1347 0.87 1389 0.95 1427 1.03
1461 1.11 1492 1.18
1500
1385 0.96 1428 1.05
1467 1.14 1502 1.22 1534 1.30
Bhp —
Brake Horsepower Input to Fan
FIOP —
Factory-Installed Option