RT-PRC006-EN
38
Performance
Data
(3 - 5 Tons)
Standard Efficiency
Table PD-19 — Direct Drive Evaporator Fan Performance 3, 4 and 5 Ton YSC036A, YSC048A, YSC060A — High Heat
External Static Pressure (Inches of Water) & Motor Power (Bhp)
1
Standard Motor
Oversized Motor
2
High Speed
Low Speed
High Speed
Low Speed
Unit
Tons
Model No.
CFM
ESP
BHP
ESP
BHP
ESP
BHP
ESP
BHP
960
0.76
0.36
0.56
0.28
0.91
0.39
0.84
0.35
1020
0.72
0.37
0.52
0.28
0.89
0.41
0.81
0.47
1080
0.68
0.38
0.45
0.29
0.86
0.43
0.77
0.39
1140
0.64
0.39
0.37
0.29
0.83
0.44
0.72
0.40
3
YSC036A**H
1200
0.61
0.40
0.29
0.30
0.79
0.45
0.69
0.41
Horizontal Airflow
1260
0.55
0.41
0.21
0.30
0.75
0.46
0.65
0.42
1320
0.50
0.42
0.09
0.31
0.70
0.48
0.60
0.44
1380
0.44
0.42
0.00
0.31
0.65
0.49
0.54
0.45
1440
0.39
0.43
—
—
0.59
0.52
0.49
0.48
1280
0.88
0.53
0.76
0.47
1.15
0.67
0.94
0.56
1360
0.82
0.54
0.70
0.47
1.10
0.68
0.89
0.58
1440
0.75
0.54
0.63
0.48
1.05
0.70
0.83
0.60
1520
0.68
0.55
0.55
0.48
1.00
0.73
0.76
0.63
4
YSC048A**H
1600
0.61
0.55
0.46
0.49
0.95
0.75
0.69
0.64
Horizontal Airflow
1680
0.52
0.56
0.33
0.49
0.90
0.78
0.60
0.66
1760
0.42
0.56
0.18
0.50
0.85
0.82
0.45
0.68
1840
0.32
0.57
0.08
0.50
0.78
0.83
0.30
0.70
1920
0.22
0.57
—
—
0.70
0.85
0.20
0.73
1600
0.85
0.78
0.77
0.64
1.15
0.90
1.00
0.85
1700
0.80
0.82
0.63
0.65
1.10
0.94
0.90
0.89
1800
0.75
0.85
0.51
0.65
1.00
0.98
0.80
0.91
1900
0.65
0.88
0.41
0.65
0.93
1.02
0.70
0.94
5
YSC060A**H
3
2000
0.55
0.90
0.25
0.66
0.85
1.05
0.60
0.95
Horizontal Airflow
2100
0.45
0.93
0.09
0.66
0.75
1.10
0.45
0.96
2200
0.35
0.95
0.00
0.67
0.65
1.12
0.30
0.96
2300
0.25
0.97
—
—
0.55
1.17
0.10
0.97
2400
0.15
1.00
—
—
0.43
1.20
—
—
960
0.76
0.36
0.56
0.28
0.91
0.39
0.84
0.35
1020
0.72
0.37
0.52
0.28
0.89
0.41
0.81
0.47
1080
0.68
0.38
0.45
0.29
0.86
0.43
0.77
0.39
1140
0.64
0.39
0.37
0.29
0.83
0.44
0.72
0.40
3
YSC036A**H
1200
0.61
0.40
0.29
0.30
0.79
0.45
0.69
0.41
Downflow Airflow
1260
0.55
0.41
0.21
0.30
0.75
0.46
0.65
0.42
1320
0.50
0.42
0.09
0.31
0.70
0.48
0.60
0.44
1380
0.44
0.42
0.00
0.31
0.65
0.49
0.54
0.45
1440
0.39
0.43
—
—
0.59
0.52
0.49
0.48
1280
0.93
0.53
0.81
0.47
1.20
0.67
0.99
0.56
1360
0.87
0.54
0.75
0.47
1.15
0.68
0.94
0.58
1440
0.80
0.54
0.68
0.48
1.10
0.70
0.88
0.60
1520
0.73
0.55
0.60
0.48
1.05
0.73
0.81
0.63
4
YSC048A**H
1600
0.66
0.55
0.51
0.49
1.00
0.75
0.74
0.64
Downflow Airflow
1680
0.57
0.56
0.38
0.49
0.95
0.78
0.65
0.66
1760
0.47
0.56
0.23
0.50
0.90
0.82
0.50
0.68
1840
0.37
0.57
0.13
0.50
0.83
0.83
0.35
0.70
1920
0.27
0.57
—
—
0.75
0.85
—
—
1600
0.90
0.78
0.82
0.64
1.20
0.90
1.05
0.85
1700
0.85
0.82
0.68
0.65
1.15
0.94
0.95
0.89
1800
0.80
0.85
0.56
0.65
1.05
0.98
0.85
0.91
1900
0.70
0.88
0.46
0.65
0.98
1.02
0.75
0.94
5
YSC060A**H
3
2000
0.60
0.90
0.30
0.66
0.90
1.05
0.65
0.95
Downflow Airflow
2100
0.50
0.93
0.14
0.66
0.80
1.10
0.50
0.96
2200
0.40
0.95
0.00
0.67
0.70
1.12
0.35
0.96
2300
0.30
0.97
—
—
0.60
1.17
0.15
0.97
2400
0.20
1.00
—
—
0.48
1.20
—
—
Fan motor heat (MBH) = 3.72 x Fan Bhp + .24.
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.
Notes:
1. Data includes pressure drop due to wet coil and filters.
2. 5 ton oversized motor performance is with 12x11 FC Centrifugal blower wheel.
3. YSC060AK* uses a 1.0 hp direct drive motor and 12x11 FC Centrifugal blower wheel. Refer to oversized motor column for the standard motor performance data.
