RT-PRC006-EN
42
Performance
Data
(4 Ton)
Standard Efficiency
For Standard Evaporator Fan Speed (RPM), reference Table PD-86.
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-89 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-27 — Belt Drive Evaporator Fan Performance — 4 Ton — YSC048A3,A4,AW*H — High Heat — 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
686
0.27
758
0.33
817
0.39
871
0.45
922
0.51
968
0.58
1013
0.64
1053
0.72
1091
0.79
1127
0.86
1440
753
0.36
821
0.43
878
0.50
930
0.57
977
0.63
1022
0.70
1066
0.78
1107
0.85
1145
0.93
1180
1.01
1600
821
0.48
884
0.55
941
0.63
990
0.70
1035
0.78
1078
0.86
1120
0.93
1160
1.02
1197
1.10
1234
1.18
1760
891
0.62
949
0.70
1004
0.78
1052
0.87
1096
0.95
1137
1.03
1176
1.12
1214
1.20
1251
1.29
1287
1.38
1920
962
0.78
1015
0.87
1067
0.97
1115
1.06
1158
1.15
1198
1.24
1235
1.33
1271
1.42
—
—
—
—
1-HP Standard Motor & Field SuppliedHigh Static Drive (2)
Table PD-27 — 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
1160
0.94
1194
1.01
1224
1.08
1254
1.15
1283
1.22
1440
1214
1.09
1247
1.18
1278
1.26
1308
1.34
1338
1.43
1600
1268
1.26
1300
1.35
1331
1.44
—
—
—
—
1760
1321
1.47
—
—
—
—
—
—
—
—
1920
—
—
—
—
—
—
—
—
—
—
1-HP Standard Motor & Field Supplied High Static Drive (2)
Table PD-26 — Belt Drive Evaporator Fan Performance — 4 Ton — YSC048A3,A4,AW*L, M — Low and Medium Heat — 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
669
0.25
744
0.31
805
0.37
860
0.44
911
0.50
959
0.56
1003
0.63
1045
0.70
1082
0.77
1119
0.85
1440
733
0.34
803
0.41
864
0.48
916
0.55
965
0.62
1011
0.69
1055
0.76
1096
0.83
1134
0.91
1171
0.99
1600
800
0.45
864
0.53
923
0.60
974
0.68
1021
0.75
1064
0.83
1106
0.91
1147
0.99
1185
1.07
1221
1.15
1760
868
0.58
926
0.67
982
0.75
1033
0.83
1079
0.92
1121
1.00
1161
1.08
1199
1.17
1237
1.26
1273
1.35
1920
937
0.74
989
0.83
1042
0.92
1092
1.01
1138
1.10
1179
1.19
1217
1.28
1254
1.38
1290
1.47
—
—
1-HP Standard Motor & Field Supplied High Static Drive (2)
For Standard Evaporator Fan Speed (RPM), reference Table PD-86.
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-89 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-26 — 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
1154
0.92
1187
1.00
1218
1.07
1248
1.14
1277
1.21
1440
1205
1.07
1237
1.15
1270
1.24
1300
1.32
1330
1.40
1600
1256
1.23
1290
1.33
1322
1.42
—
—
—
—
1760
1307
1.43
—
—
—
—
—
—
—
—
1920
—
—
—
—
—
—
—
—
—
—
1-HP Standard Motor & Field Supplied High Static Drive (2)