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RT-PRC006-EN

(7½ Ton)
Standard Efficiency

Performance
Data

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 Motor Sheave 1VL40L x 7/8 and Fan Sheave AK71 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-40 — Belt Drive Evaporator Fan Performance — 7½ Ton — YSC090,092A3,A4,AW, AK *L — Low Heat —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

2-HP Standard Motor & Field Supplied

2-HP Standard Motor & Drive

Low Static Drive (1

)

2400

—

676

0.59

726

0.67

773

0.77

815

0.85

854

0.94

891

1.03

928

1.12

963

1.22

2700

—

682

0.68

727

0.76

770

0.85

814

0.95

856

1.06

895

1.16

931

1.25

965

1.35

998

1.45

3000

693

0.79

738

0.89

780

0.97

819

1.07

858

1.18

898

1.29

936

1.40

972

1.52

1006

1.63

1038

1.73

3300

753

1.03

795

1.14

834

1.23

871

1.33

906

1.45

942

1.56

978

1.69

1014

1.81

1048

1.94

1080

2.06

3600

814

1.31

853

1.44

890

1.55

925

1.65

958

1.76

991

1.88

1023

2.01

1057

2.14

1088

2.28

1121

2.41

Table PD-40 — 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

2-HP Standard Motor & High Static DriveKit (or 3-HP Oversized Motor & Drive)

2400

996

1.32

1028

1.42

1061

1.52

1092

1.63

1122

1.73

1151

1.83

1180

1.93

1207

2.03

1235

2.14

1261

2.24

2700

1031

1.56

1062

1.66

1093

1.78

1123

1.89

1153

2.00

1181

2.12

1209

2.23

1236

2.35

1262

2.47

1288

2.58

3000

1070

1.85

1099

1.95

1128

2.07

1158

2.19

1185

2.31

1213

2.43

1240

2.55

1267

2.68

1293

2.81

1319

2.94

3300

1110

2.18

1139

2.29

1167

2.42

1195

2.54

1222

2.66

1248

2.79

1274

2.92

1301

3.05

1325

3.18

1351

3.33

3600

1151

2.55

1181

2.68

1208

2.81

1236

2.95

1261

3.07

1287

3.21

1311

3.33

—

3-HP Oversized Motor & Drive

3-HP Oversized Motor

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 Motor Sheave 1VL40L x 7/8 and Fan Sheave AK71 required.

Table PD-41 — 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