PKGP-PRC003-EN
25
Table PD-16— Belt Drive Evaporator Fan Performance — 7½-Ton — WSC090,092A3,A4,AW — Downflow Airflow
External Static Pressure (Inches of Water)
.10
.20
.30
.40
.50
.60
.70
.80
.90
1.00
CFM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
1-HP Standard Motor & Field Supplied Low Static Drive (1
)
1-HP Standard Motor & Drive
2400
—
—
620
0.49
670
0.57
720
0.66
768
0.76
810
0.84
850
0.93
888
1.02
925
1.12
961
1.22
2700
622
0.57
673
0.66
719
0.74
763
0.84
807
0.94
850
1.04
889
1.14
926
1.24
961
1.34
995
1.44
3000
680
0.76
727
0.87
770
0.95
810
1.05
849
1.16
890
1.27
929
1.38
967
1.50
1000
1.61
1034
1.72
3300
739
0.98
782
1.11
823
1.21
861
1.30
897
1.41
933
1.50
969
1.66
1006
1.78
1041
1.91
1074
2.03
3600
798
1.25
838
1.39
876
1.50
913
1.61
947
1.72
980
1.84
1013
1.97
1047
2.11
1080
2.24
1113
2.38
3-HP Oversized Motor & Drive
Performance
Data
(7½ Ton)
Table PD-17 — Continued
External Static Pressure (Inches of Water)
1.10
1.20
1.30
1.40
1.50
1.60
1.70
1.80
1.90
2.00
CFM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
3-HP Standard Oversized Motor & Drive
2400
1051
1.44
1085
1.54
1118
1.64
1152
1.75
1185
1.86
1215
1.97
1247
2.09
1277
2.20
1305
2.32
1333
2.43
2700
1090
1.70
1122
1.82
1153
1.94
1185
2.06
1216
2.18
1245
2.29
1274
2.40
1304
2.53
1333
2.65
1361
2.78
3000
1136
2.00
1165
2.13
1194
2.26
1223
2.39
1251
2.52
1279
2.65
1308
2.78
1336
2.91
1363
3.04
1390
3.17
3300
1187
2.39
1214
2.50
1242
2.63
1269
2.76
1296
2.90
1322
3.05
1347
3.19
1373
3.34
—
—
—
—
3600
1239
2.84
1266
2.96
1291
3.08
1317
3.20
1343
3.34
—
—
3-HP Oversized Motor & Field Supplied High Static Drive (2)
Table PD-17 — Belt Drive Evaporator Fan Performance — 7½-Ton — WSC090,092A3,A4,AW — Horizontal Airflow
External Static Pressure (Inches of Water)
.10
.20
.30
.40
.50
.60
.70
.80
.90
1.00
CFM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
1-HP Standard Motor & Field Supplied
1-HP Standard Motor & Drive
Low Static Drive (1
)
2400
647
0.51
686
0.58
737
0.66
787
0.76
831
0.85
870
0.93
908
1.02
944
1.12
980
1.23
1015
1.33
2700
718
0.71
753
0.79
792
0.87
839
0.96
882
1.08
922
1.18
958
1.27
992
1.36
1026
1.47
1058
1.59
3000
789
0.96
822
1.04
853
1.13
892
1.22
935
1.33
974
1.45
1011
1.58
1044
1.68
1076
1.78
1106
1.88
3300
862
1.25
892
1.35
921
1.44
951
1.54
988
1.64
1026
1.76
1062
1.90
1096
2.04
1129
2.16
1158
2.27
3600
934
1.61
963
1.71
990
1.81
1016
1.92
1045
2.02
1079
2.13
1115
2.27
1148
2.41
1180
2.57
1210
2.71
3-HP Oversized Motor & Drive
3-HP Oversized Motor& Field Supplied Sheave(2)
Table PD-16— Continued
External Static Pressure (Inches of Water)
1.10
1.20
1.30
1.40
1.50
1.60
1.70
1.80
1.90
2.00
CFM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
3-HP Oversized Motor & Drive
2400
995
1.32
1027
1.42
1060
1.52
1091
1.62
1121
1.73
1151
1.83
1180
1.93
1207
2.04
1234
2.14
1260
2.24
2700
1027
1.55
1059
1.65
1091
1.77
1121
1.88
1151
2.00
1179
2.11
1207
2.23
1234
2.34
1261
2.46
1289
2.58
3000
1065
1.83
1095
1.94
1125
2.05
1154
2.17
1183
2.30
1211
2.42
1238
2.54
1264
2.67
1292
2.80
1317
2.93
3300
1104
2.15
1134
2.27
1163
2.40
1191
2.52
1217
2.64
1245
2.77
1272
2.90
1297
3.03
1324
3.17
1349
3.31
3600
1144
2.52
1173
2.65
1202
2.78
1229
2.91
1256
3.05
1282
3.18
1308
3.32
1332
3.45
—
—
—
—
3-HP Oversized Motor & Field Supplied High Static Drive (3)
.
1- HP Standard Motor & Drive
For Standard Evaporator Fan Speed (RPM), reference Table PD-20.
Notes:
Data includes pressure drop due to standard filters and wet coils.
No accessories or options are included in pressure drop data.
Refer to Table PD-23 to determine additional static pressure drop
due to other options/accessories
1-HP Fan Motor Heat (MBH) = 2.829 x Fan BHP+.4024.
3-HP Fan Motor Heat (MBH) = 2.90 x Fan BHP + .500.
1. Field Supplied Fan Sheave AK79 and Belt AX34 required.
2. Field Supplied Fan Sheave AK61.
3. Field Supplied Motor Sheave 1VL40 x 7/8”, Fan Sheave AK46 and Belt AX28 required.
Factory supplied motors, in commercial equipment, are definite purpose motors, specifically designed
and tested to operate reliably and continuously at all cataloged conditions. Using the full horsepower
range of our fan motors as shown in our tabular data will not result in nuisance tripping or premature
motor failure. Our product’s warranty will not be affected.
For Standard Evaporator Fan Speed (RPM), reference Table PD-20.
Notes:
Data includes pressure drop due to standard filters and wet coils.
No accessories or options are included in pressure drop data.
Refer to Table PD-23 to determine additional static pressure drop
due to other options/accessories
1-HP Fan Motor Heat (MBH) = 2.829 x Fan BHP+.4024.
3-HP Fan Motor Heat (MBH) = 2.90 x Fan BHP + .500.
1. Field Supplied Fan Sheave AK79 and Belt AX34 required.
2. Field Supplied Motor Sheave 1VL40 x 7/8”, Fan Sheave AK46 and Belt AX28 required.
Factory supplied motors, in commercial equipment, are definite purpose motors, specifically designed
and tested to operate reliably and continuously at all cataloged conditions. Using the full horsepower
range of our fan motors as shown in our tabular data will not result in nuisance tripping or premature
motor failure. Our product’s warranty will not be affected.
1-HP Standard Motor & Drive
