53
RT-PRC006-EN
(8½ Ton)
Standard Efficiency
Performance
Data
Table PD-48 — 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
2-HP Standard Motor & Drive
3-HP Oversized Motor & Drive
2720
988
1.81
1013
1.93
1037
2.05
1061
2.17
1084
2.28
1106
2.40
1128
2.52
1150
2.64
1172
2.76
1192
2.88
3060
1040
2.19
1065
2.33
1090
2.46
1113
2.59
1136
2.72
1158
2.86
1179
2.99
1199
3.12
1220
3.25
1239
3.38
3400
1091
2.62
1117
2.78
1141
2.92
1165
3.07
1188
3.22
1210
3.37
—
—
—
—
—
—
—
—
3740
1137
3.07
1166
3.27
1193
3.44
—
—
—
—
—
—
—
—
—
—
—
—
—
—
4080
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Table PD-48 — Belt Drive Evaporator Fan Performance — 8½ Ton — YSC102A3,A4,AW, AK *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
2-HP Standard Motor & Field Supplied
2-HP Standard Motor & Drive
Low Static Drive (1
)
2720
607
0.59
655
0.69
697
0.80
744
0.93
791
1.07
834
1.21
871
1.34
904
1.46
933
1.58
962
1.70
3060
672
0.81
715
0.92
755
1.04
792
1.16
834
1.31
876
1.47
917
1.63
953
1.78
985
1.93
1013
2.06
3400
739
1.09
776
1.20
814
1.34
849
1.47
882
1.61
920
1.77
958
1.94
996
2.12
1030
2.29
1063
2.47
3740
807
1.43
839
1.54
875
1.69
907
1.83
938
1.98
969
2.13
1003
2.30
1037
2.49
1072
2.69
1106
2.88
4080
875
1.83
903
1.95
935
2.10
968
2.26
997
2.42
1025
2.58
1053
2.74
1084
2.93
1116
3.13
1148
3.34
3-HP Oversized Motor & Drive
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
2-HP Fan Motor Heat (MBH) = 2.000 x Fan BHP+.5000.
3-HP Fan Motor Heat (MBH) = 2.900 x Fan BHP+.4750.
1. Field Supplied Fan Sheave AK79 and Belt AX38 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.
Table PD-49 — 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
2-HP Standard Motor & Drive
3-HP Oversized Motor & Drive
2720
998
1.86
1022
1.97
1046
2.09
1069
2.21
1092
2.33
1115
2.45
1136
2.56
1158
2.69
1179
2.80
1200
2.93
3060
1052
2.26
1077
2.39
1101
2.52
1124
2.66
1146
2.79
1167
2.92
1188
3.05
1209
3.18
1229
3.31
1249
3.45
3400
1106
2.71
1131
2.86
1155
3.01
1179
3.16
1202
3.31
1222
3.45
—
—
—
—
—
—
—
—
3740
1157
3.21
1185
3.39
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
4080
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Table PD-49 — Belt Drive Evaporator Fan Performance — 8½ Ton — YSC102A3,A4,AW, AK *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
2-HP Standard Motor & Field Supplied
2-HP Standard Motor & Drive
Low Static Drive (1
)
2720
625
0.63
671
0.73
713
0.84
762
0.98
807
1.12
849
1.26
883
1.38
915
1.50
944
1.62
971
1.74
3060
692
0.86
734
0.98
772
1.10
811
1.23
854
1.38
896
1.54
934
1.70
969
1.85
997
1.99
1026
2.12
3400
760
1.15
799
1.28
834
1.41
868
1.55
903
1.70
942
1.87
980
2.04
1016
2.22
1049
2.39
1079
2.56
3740
828
1.50
863
1.64
898
1.79
929
1.94
960
2.08
993
2.25
1027
2.44
1062
2.63
1096
2.82
1127
3.02
4080
898
1.92
929
2.07
962
2.23
992
2.39
1020
2.55
1048
2.71
1078
2.89
1110
3.09
1142
3.30
—
—
3-HP Oversized Motor & Drive
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
2-HP Fan Motor Heat (MBH) = 2.000 x Fan BHP+.5000.
3-HP Fan Motor Heat (MBH) = 2.900 x Fan BHP+.4750.
1. Field Supplied Fan Sheave AK79 and Belt AX38 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.