22
PKGP-PRC003-EN
Performance
Data
(4 Ton)
Table PD-10— Belt Drive Evaporator Fan Performance — 4 Ton — WSC048A3,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
1-HP Standard Motor & Drive
Low Static Drive (1
)
1280
—
—
616
0.22
677
0.26
734
0.31
787
0.37
834
0.42
878
0.48
919
0.53
959
0.59
997
0.64
1440
596
0.23
663
0.29
719
0.33
772
0.38
823
0.44
871
0.51
914
0.57
954
0.63
993
0.69
1029
0.75
1600
647
0.31
711
0.37
764
0.42
813
0.47
860
0.53
906
0.59
951
0.66
992
0.74
1029
0.80
1065
0.87
1760
701
0.41
758
0.46
811
0.52
856
0.58
901
0.64
944
0.70
986
0.77
1027
0.85
1066
0.93
1102
1.00
1920
755
0.52
807
0.57
859
0.64
903
0.71
945
0.77
985
0.83
1024
0.89
1063
0.97
1101
1.05
1137
1.14
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.
Fan Motor Heat (MBH) = 2.829 x Fan BHP+.4024.
1. Field Supplied Fan Sheave AK61 required. Field Supplied Belt may be
necessary.
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.
Table PD-10 — Continued
External Static Pressure (Inches of Water)
1.10
1.20
1.30
1.40
1.50
CFM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
1-HP Standard Motor & Drive
1280
1033
0.70
1069
0.77
1103
0.83
1136
0.89
1170
0.96
1440
1066
0.81
1099
0.87
1133
0.94
1165
1.01
1196
1.08
1600
1099
0.93
1132
1.00
1166
1.07
1196
1.14
1228
1.21
1760
1136
1.08
1168
1.15
1200
1.22
1229
1.29
—
—
1920
1172
1.23
1205
1.31
1236
1.39
—
—
—
—
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
Fan Motor Heat (MBH) = 2.829 x Fan BHP+.4024.
1. Field Supplied Fan Sheave AK61 required. Field Supplied Belt may be
necessary.
2. Field Supplied Fan Sheave AK41 required. Field Supplied Belt may be
necessary.
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.
Table PD-11 — Belt Drive Evaporator Fan Performance — 4 Ton — WSC048A3,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
)
1280
604
0.20
683
0.26
756
0.32
816
0.39
869
0.45
920
0.51
967
0.57
1011
0.64
1052
0.71
1090
0.79
1440
660
0.28
731
0.34
800
0.41
862
0.48
914
0.54
963
0.61
1009
0.68
1053
0.76
1094
0.83
1133
0.91
1600
717
0.36
783
0.43
846
0.51
907
0.58
961
0.66
1008
0.73
1053
0.81
1095
0.89
1135
0.97
1174
1.05
1760
774
0.47
837
0.54
894
0.62
952
0.70
1006
0.79
1054
0.87
1098
0.95
1139
1.04
1178
1.12
1216
1.21
1920
833
0.59
892
0.67
946
0.76
998
0.85
1050
0.94
1100
1.03
1144
1.12
1185
1.21
1224
1.30
1259
1.39
1-HP Standard Motor &Field Supplied High Static Drive (2)
Table PD-11 — Continued
External Static Pressure (Inches of Water)
1.10
1.20
1.30
1.40
1.50
CFM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
1-HP Standard Motor & Drive
1280
1125
0.86
1160
0.94
1192
1.01
1223
1.08
1254
1.15
1440
1169
0.98
1204
1.07
1237
1.15
1269
1.23
1300
1.32
1600
1211
1.13
1247
1.21
1280
1.30
1312
1.39
1343
1.48
1760
1253
1.30
1289
1.39
1322
1.47
—
—
—
—
1920
1295
1.48
—
—
—
—
—
—
—
—
1-HP Standard Motor &Field Supplied High Static Drive (2)