Bryant COMMERCIAL SINGLE PACKAGE ROOFTOP GAS HEAT/ELECTRIC COOLING 581B User Manual page 34

581B048 (4 TONS) — STANDARD MOTOR
AIRFLOW
0.1
(Cfm)
Rpm Bhp
1200 569 0.18
1300 604 0.22
1400 640 0.27
1500 676 0.32
1600 713 0.38
1700 750 0.45
1800 788 0.52
1900 826 0.60
2000 864 0.70
581B048 (4 TONS) — STANDARD MOTOR (cont)
AIRFLOW
0.9
(Cfm)
Rpm Bhp
1200 987 0.64
1300 1006 0.71
1400 1033 0.79
1500 1060 0.88
1600 1087 1.01
1700 1114 1.07
1800 1141 1.17
1900 1168 1.28
2000 1197 1.39
581B048 (4 TONS) — HIGH-STATIC MOTOR
AIRFLOW
(Cfm)
Rpm
1200 641
1300 673
1400 705
1500 738
1600 772
1700 806
1800 841
1900 876
2000 912
581B048 (4 TONS) — HIGH-STATIC MOTOR (cont)
AIRFLOW
(Cfm)
Rpm
1200 1106
1300 1128
1400 1139
1500 1162
1600 1185
1700 1215
1800 1243
1900 1271
2000 1298
LEGEND
Bhp — Brake Horsepower Input to Fan
FIOP — Factory-Installed Option
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.
PERFORMANCE DATA (cont)
FAN PERFORMANCE — HORIZONTAL DISCHARGE UNITS (cont)
EXTERNAL STATIC PRESSURE (in. wg)
0.2 0.3
Rpm Bhp Rpm
641 0.23 701
673 0.28 731
705 0.33 761
738 0.38 793
772 0.44 825
806 0.51 857
841 0.59 890
876 0.68 924
912 0.77 958
EXTERNAL STATIC PRESSURE (in. wg)
1.0 1.1
Rpm Bhp Rpm
1030 0.70 1068
1044 0.77 1086
1069 0.86 1104
1095 0.95 1129
1123 1.05 1156
1151 1.15 1183
1178 1.26 1211
1204 1.37 1238
1231 1.48 1265
0.2 0.4
Bhp Rpm
0.23 761
0.28 788
0.33 817
0.38 847
0.44 877
0.51 908
0.59 939
0.68 971
0.77 1004
1.2 1.4
Bhp Rpm Bhp
0.87 1134 0.98
0.91 1183 1.10
1.01 1218 1.14
1.09 1228 1.24
1.20 1250 1.35
1.31 1276 1.48
1.43 1303 1.61
1.56 1330 1.74
1.69 1358 1.89
0.4
Bhp Rpm Bhp Rpm
0.29 761 0.34 859
0.34 788 0.39 887
0.39 817 0.45 914
0.45 847 0.51 940
0.51 877 0.58 967
0.59 908 0.66 997
0.67 939 0.75 1026
0.76 971 0.84 1056
0.86 1004 0.94 1087
1.2
Bhp Rpm Bhp Rpm
0.79 1106 0.87 1134
0.84 1128 0.91 1183
0.93 1139 1.01 1218
1.02 1162 1.09 1228
1.13 1185 1.20 1250
1.23 1215 1.31 1276
1.35 1243 1.43 1303
1.47 1271 1.56 1330
1.59 1298 1.69 1358
EXTERNAL STATIC PRESSURE (in. wg)
0.6
Bhp Rpm Bhp
0.34 859 0.46
0.39 887 0.52
0.45 914 0.59
0.51 940 0.65
0.58 967 0.73
0.66 997 0.81
0.75 1026 0.91
0.84 1056 1.01
0.94 1087 1.12
EXTERNAL STATIC PRESSURE (in. wg)
1.6
Rpm Bhp
1189 1.12
1226 1.23
1286 1.34
1303 1.40
1319 1.51
1334 1.64
1359 1.78
1386 1.93
1413 2.08
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.
34
0.6 0.7
Bhp Rpm Bhp
0.46 901 0.52
0.52 928 0.59
0.59 955 0.66
0.65 982 0.73
0.73 1009 0.81
0.81 1037 0.90
0.91 1065 1.01
1.01 1094 1.10
1.12 1125 1.21
1.4 1.6
Bhp Rpm Bhp
0.98 1189 1.12
1.10 1226 1.23
1.14 1286 1.34
1.24 1303 1.40
1.35 1319 1.51
1.48 1334 1.64
1.61 1359 1.78
1.74 1386 1.93
1.89 1413 2.08
0.8
Rpm Bhp Rpm
943 0.58 1030
968 0.65 1044
996 0.72 1069
1024 0.81 1095
1051 0.89 1123
1077 1.01 1151
1104 1.07 1178
1132 1.18 1204
1162 1.30 1231
1.8
Rpm Bhp Rpm
1245 1.21 1292
1297 1.35 1346
1320 1.48 1370
1343 1.60 1393
1382 1.68 1434
1398 1.80 1451
1418 1.95 1471
1439 2.11 1493
1466 2.27 1521
0.8
Rpm Bhp
943 0.58
968 0.65
996 0.72
1024 0.81
1051 0.89
1077 1.01
1104 1.07
1132 1.18
1162 1.30
1.8
Rpm Bhp
1245 1.21
1297 1.35
1320 1.48
1343 1.60
1382 1.68
1398 1.80
1418 1.95
1439 2.11
1466 2.27
1.0
Bhp
0.70
0.77
0.86
0.95
1.05
1.15
1.26
1.37
1.48
2.0
Bhp
1.35
1.51
1.65
1.79
1.88
2.01
2.18
2.36
2.54