Double Screw Compressor Air Cooled Water Chiller
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Feature:
1. 8Â sizes available ranging from 380 kW to 1419 kW cooling capacity.
2.Semi-hermetic screw compressor for all models. Each compressor is equipped with a crankcase heater and a thermal overload cut-out; the screw compressor is also complete with a built-in electronic protection with temperature sensor located directly in the motor winding and on the discharge line.
3.External rotor type axial fans, equipped with three phase direct drive motors, low noise 8 poles, protection level IP54, provided with a protective outlet grille.
4.Evaporator built with high efficiency shell and tube type heat exchanger, factory insulated with flexible close cell material.
5.Condenser built with seamless copper tubes mechanically expanded into blue hydrophilic aluminum fins.
6.Refrigerant circuit complete with charge valves, filter drier, sight glass, gas-liquid separator, thermostatic expansion valve, high &Â low pressure switch. The heat pump unit is completed also with 4-way valve, liquid receiver and one way valve.
7.Hydraulic circuit built with galvanized pipe, complete with water discharge connection for shell and tube heat exchanger and flange type hydraulic connectors.
8.Electric panel consist of: compressor contactor, fan motor contactor, compressor isolating switch, fan protection breaker, phase sequence relay and microprocessor with function display.
9. Automatic operation dramatically reducing maintenance cost thanks to reliable microprocessor system.
Product description:
Â
Model
Â
380Z
500Z
600Z
720Z
880Z
1000Z
1200Z
1420Z
cooling capacityÂ
kW
376
496
594
720
880
996
1203
1419
cooling power input
kW
124
159
187
234
285
318
381
466
power supply                                         380V/3pH /50Hz compressor
compressor type
Semi- hermetic, twin screw compressor
Qty/ refrigerant circuit
Nr.
1/1
1/1
1/1
1/1
2/2
2/2
2/2
2/2
Â
Â
Â
Â
Â
Â
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Energy adjustment
\
25%,50%,75%,100% 4-step (Â 50%~100% stepless as option)
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Refrigerant
R134A
Water side heat exchanger
Type
Shell-and-tube heat-exchanger
Water Volume
m3/h
65.4
86
103.2
123.8
151.4
172
206.4
244.2
Â
Â
Â
Â
Â
Â
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Water pressure drop
kpa
39
54
56
58
70
75
71
69
Â
Â
Â
Â
Â
Â
Â
Inlet/outlet pipe diameter
mm
DN125
DN125
DN125
DN150
DN150
DN150
DN200
DN200
Â
Â
Â
Â
Â
Â
Â
Water side fouling factor
m2.ºC/kW
0.086
Â
Air side heat exchanger
Â
Â
Â
Â
Â
Â
Â
Â
Â
Â
Â
Â
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Â
Â
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Type
M shape Heat exchanger, High efficient exchanger tube +Â aluminum fins
Fans Quantity
Nr.
6
8
10
10
14
16
16
20
Â
Â
Â
Â
Â
Â
Â
Air Volume
m3/h
23000X6
23000X8
23000X10
23000X10
23000X14
23000X16
23000X16
23000X20
Â
Â
Â
Â
Â
Â
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Motor Input
kW
2.8X6
2.8X8
2.8X10
2.8X10
2.8X14
2.8X16
2.8X16
2.8X20
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Physical dimensions
Standard type (mm)
L
3810
4680
5880
5880
8800
9460
9460
11700
Â
Â
Â
Â
Â
Â
Â
W
2280
2280
2280
2280
2280
2280
2280
2280
Â
Â
Â
Â
Â
Â
Â
H
2370
2370
2370
2370
2430
2430
2430
2430
Â
Â
Â
Â
Â
Â
Â
Shipping weight
kg
3320
4330
5000
5500
7750
8900
9100
11100
Â
Â
Â
Â
Â
Â
Â
Shipping weight
kg
3520
4530
5200
5700
8050
9200
9400
11400
Â
Â
Â
Â
Â
Â
Â
Sound pressure level **
dB(A)
70
70
71
71
72
74
75
75
Â
Â
Â
Â
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Note:
1) Nominal cooling capacities are based on the following conditions:
Chilled water inlet/outlet temp: 12ºC/7ºC; Outdoor temp (DB/WB):35ºC/24ºC.
Contact to
Ms. Meiling HuangÂ
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Mob:+00 86 15821429062
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