Water cooled chillers cool by the circulation of water and refrigerant through coaxial tubing. The innermost tube contains the refrigerant while the surrounding outer tube contains the water. As the system circulates, the water in the outer tube condenses the refrigerant in the inner tube, the refrigerant then flows through the evaporator. This condensation process cools the liquid in the evaporator. The cooled liquid flows to the reservoir tank. The system is closed so less heat is dissipated into ambient air. Water cooled chillers are quiet and reliable, they are also energy efficient. Water cooled chillers require a substantial water source and system of pumps, piping and fans. As the system tonnage rises the merit of a water cooled chiller increases.

 

Water-Cooled 5 to 15 HP Specifications

Model
DCW500
DCW750
DCW1000
DCW1300
DCW1500
Compressor
Nom. HP
5
7.5
10
13
15
Cooling Capacity (1)
Tons
Watts
BTU/hr
5.07
17,825
60,840
6.90
24,260
82,800
10.32
36,284
123,840
12.80
45,004
153,600
15.66
55,060
187,920
Nominal Evaporator Flow (2)
USGPM
12.7
17.0
25.7
31.7
38.6
Pressure (3)
PSIG
34.5
32
42
38
33.5
Pump Horsepower
HP
1
1
2
2
2
Water Condenser Flow-Tower Water
USGPM
15.4
22.3
31.5
38.8
47.0
Water Condenser Connections
Inches
1
1
1-1/2
2
2
Process Connections (to & from)
Inches
1-1/2
1-1/2
1-1/2
2
2
Resivoir Tank Capacity
US Gallons
16
16
45
45
45
Dimensions (d x w x h)
Inches
53 x 34.5 x 40
53 x 34.5 x 40
75 x 34.5 x 40
75 x 34.5 x 40
75 x 34.5 x 40
Shipping Weight
Pounds
915
1,005
1,105
1,190
1,195
Temperature Range
ºF
ºC
32ºF - 86ºF
0ºC - 30ºC
32ºF - 86ºF
0ºC - 30ºC
32ºF - 86ºF
0ºC - 30ºC
32ºF - 86ºF
0ºC - 30ºC
32ºF - 86ºF
0ºC - 30ºC
Temperature Stability

ºF
ºC

± 2ºF
± 1.11ºC
± 2ºF
± 1.11ºC
± 2ºF
± 1.11ºC
± 2ºF
± 1.11ºC
± 2ºF
± 1.11ºC
Nominal Rated Amps
460V/3/60
12.3
16.5
22.8
32.0
33.1
230V/3/60
24.0
33.3
49.6
64.0
66.2

Notes:
(1) Capacity based on 95ºF (35ºC) entering air, and leaving water 50 ºF. Allowance made for heat gain from pump.
(2) Chiller flow rate based on 2.4 USGPM/ton (0.54 cu. Meters/hr/ton).
(3) Pumps: Stainless Steel Centrifugal