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CG-PRC007-EN16
General Data
Table GD-1 — General Data — 10–60 Ton Units
10 Ton 15 Ton 20 Ton 25 Ton 30 Ton 40 Ton 50 Ton 60 Ton
Model Number CGA120 CGA180 CGAF-C20 CGAF-C25 CGAF-C30 CGAF-C40 CGAF-C50 CGAF-C60
Compressor Data
Model Scroll Scroll Scroll Scroll Scroll Scroll Scroll Scroll
Quantity 2 2 2 1/1 2 4 2/2 4
Nominal Tons per Compressor 5 7.5 10 10/15 15 10 10/15 15
Evaporator
Nominal Size (Tons) 10152025 30405060
Water Storage Capacity (Gallons)
²
1.4 1.5 2.2 2.7 3.2 4.1 5.0 7.4
Min. Flow Rate (GPM) 12.018.02430 36486072
Max. Flow Rate (GPM) 36.0 54.0 72 90 108 144 180 216
Max EWT At Start-Up — Deg F
³
100 100 108 108 108 108 108 108
Condenser
Nominal Size (Tons) 10152025 30405060
Number of Coils 1 2 1 2 2 2 2 2
Coil Size (ea., Inches)
4
28 x 108 28 x 83 61 x 71 45 x 71/35 x 71 56 x 70 56 x 70 57 x 96 57 x 96
Number of Rows 2233 3334
Subcooler Size (ea., Inches) 4 x 108 4 x 83 10 x 71 14 x 71 9 x 70 9 x 70 9 x 96 9 x 96
Condenser Fans
Quantity 1 2 2 3 4 4 6 6
Diameter (Inches) 28 26 26 26 26 26 26 26
CFM (Total) 8,120 11,600 15,000 21,650 29,200 29,200 42,300 40,700
Nominal RPM 1100 1100 1140 1140 1140 1140 1140 1140
Tip Speed (Ft/Min) 8060 7490 7750 7750 7750 7750 7750 7750
Motor HP (ea.) 1.0 1/2 1.0 1.0 1.0 1.0 1.0 1.0
Drive Type Direct Direct Direct Direct Direct Direct Direct Direct
Minimum Outdoor Air Temperature Permissible
For Mechanical Cooling¹
Standard Ambient Control Unit (°F) 50 50 30 30 30 30 30 30
Standard Ambient w/Hot Gas Bypass (°F) 60 60 40 40 40 40 40 40
Low Ambient Option (°F) 0000 0000
Low Ambient Control w/Hot Gas Bypass(°F) 15 15 10 10 10 10 10 10
General Unit
Unload Steps 100-50 100-50 100-50 100-60-40 100-50 100-75-50-25 100-80-60-30 100-75-50-25
No. of Independent Refrig. Circuits 2 2 1 1 1 2 2 2
Refrigerant Charge (lbs. R22/Circuit) 8.25 11.5 40.5 54.0 72.0 38.0 47.0 67.0
Oil Charge (Pints/Circuit) 4.1 7.5 17.0 22.3 27.6 17.0 22.3 27.6
*Unloading steps depend upon which compressor is lead compressor.
Notes:
1. Minimum start-up ambient based on unit at minimum step of unloading and a 5 mph wind across the condenser.
2. Includes piping internal to chiller.
3. At 95°F ambient.
4. Does not include subcooling portion of coil.