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34
PERFORMANCE DATA (cont)
FAN PERFORMANCE — HORIZONTAL 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 units; 1075 to 1455 rpm for
high-static motors. 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 1.20 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. 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 rep-
resentative 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 569 0.18 641 0.23 701 0.29 761 0.34
859 0.46 901 0.52 943 0.58
1300 604 0.22 673 0.28 731 0.34 788 0.39
887 0.52 928 0.59 968 0.65
1400 640 0.27 705 0.33 761 0.39 817 0.45
914 0.59 955 0.66 996 0.72
1500 676 0.32 738 0.38 793 0.45
847 0.51 940 0.65 982 0.73 1024 0.81
1600 713 0.38 772 0.44 825 0.51
877 0.58 967 0.73 1009 0.81 1051 0.89
1700 750 0.45 806 0.51
857 0.59 908 0.66 997 0.81 1037 0.90 1077 1.01
1800 788 0.52
841 0.59 890 0.67 939 0.75 1026 0.91 1065 1.01 1104 1.07
1900 826 0.60
876 0.68 924 0.76 971 0.84 1056 1.01 1094 1.10 1132 1.18
2000
864 0.70 912 0.77 958 0.86 1004 0.94 1087 1.12
1125 1.21 1162 1.30
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
987 0.64 1030 0.70 1068 0.79 1106 0.87 1134 0.98
1189 1.12
1245 1.21
1300
1006 0.71 1044 0.77 1086 0.84 1128 0.91 1183 1.10
1226 1.23 1297 1.35
1400
1033 0.79 1069 0.86 1104 0.93 1139 1.01
1218 1.14
1286 1.34 1320 1.48
1500
1060 0.88 1095 0.95 1129 1.02 1162 1.09
1228 1.24 1303 1.40 1343 1.60
1600
1087 1.01 1123 1.05 1156 1.13 1185 1.20
1250 1.35 1319 1.51 1382 1.68
1700
1114 1.07 1151 1.15
1183 1.23 1215 1.31 1276 1.48 1334 1.64 1398 1.80
1800
1141 1.17
1178 1.26 1211 1.35 1243 1.43 1303 1.61 1359 1.78 1418 1.95
1900
1168 1.28 1204 1.37 1238 1.47 1271 1.56 1330 1.74 1386 1.93 1439 2.11
2000
1197 1.39 1231 1.48 1265 1.59 1298 1.69 1358 1.89 1413 2.08 1466 2.27
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 641 0.23 761 0.34 859 0.46 943 0.58 1030 0.70
1300 673 0.28 788 0.39 887 0.52 968 0.65 1044 0.77
1400 705 0.33 817 0.45 914 0.59 996 0.72 1069 0.86
1500 738 0.38 847 0.51 940 0.65 1024 0.81
1095 0.95
1600 772 0.44 877 0.58 967 0.73 1051 0.89
1123 1.05
1700 806 0.51 908 0.66 997 0.81
1077 1.01 1151 1.15
1800 841 0.59 939 0.75 1026 0.91
1104 1.07 1178 1.26
1900 876 0.68 971 0.84 1056 1.01
1132 1.18 1204 1.37
2000 912 0.77 1004 0.94
1087 1.12 1162 1.30 1231 1.48
581B048 (4 TONS) — HIGH-STATIC MOTOR (cont)
AIRFLOW
(Cfm)
EXTERNAL STATIC PRESSURE (in. wg)
1.21.41.61.8 2.0
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
1200
1106 0.87 1134 0.98 1189 1.12 1245 1.21 1292 1.35
1300
1128 0.91 1183 1.10 1226 1.23 1297 1.35 1346 1.51
1400
1139 1.01 1218 1.14 1286 1.34 1320 1.48 1370 1.65
1500
1162 1.09 1228 1.24 1303 1.40 1343 1.60 1393 1.79
1600
1185 1.20 1250 1.35 1319 1.51 1382 1.68 1434 1.88
1700
1215 1.31 1276 1.48 1334 1.64 1398 1.80 1451 2.01
1800
12431.4313031.6113591.7814181.95
1471 2.18
1900
12711.5613301.7413861.9314392.11
1493 2.36
2000
12981.6913581.8914132.08
1466 2.27
1521 2.54
Bhp —
Brake Horsepower Input to Fan
FIOP —
Factory-Installed Option