NWS-400WSCD
NASER
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Key Features:
Superior Efficiency: Water-cooled chillers achieve higher heat exchange efficiency due to water’s superior thermal conductivity compared to air, resulting in lower energy consumption per ton of cooling.
High Capacity: Ideal for heavy-duty industrial and commercial applications, with cooling capacities ranging from 100 kW to over 10,000 kW.
Quiet Operation: Eliminates the need for loud condenser fans, making them suitable for noise-sensitive environments.
Long Lifespan: Protected from outdoor weather conditions, components (e.g., compressors, condensers) experience less wear, ensuring durability.
Flexible Configuration: Compatible with centrifugal, screw, or scroll compressors, and customizable for variable or constant flow systems.
Operation Principle:
The refrigerant absorbs heat from the process water in the evaporator, turning into gas. The compressor pressurizes the gas, raising its temperature. In the water-cooled condenser, heat is transferred to a separate cooling water loop, which is then pumped to a cooling tower. There, the cooling water releases heat to the atmosphere through evaporation before recirculating. The refrigerant condenses back to liquid, completing the cycle.
Advantages Over Air-Cooled Systems:
Higher Energy Efficiency: Lower operating costs in continuous-use scenarios (e.g., data centers, manufacturing plants).
Stable Performance: Less affected by ambient temperature fluctuations, ensuring consistent cooling even in hot climates.
Space-Saving: Compact unit design (no large condenser fans), though cooling towers require external installation space.
Model | NWS-400WSCD | ||||
Power supply | 380v/3ph/50hz | ||||
Temperature control range | 5-35degree | ||||
Cooling capacity | USRT | 328 | |||
KW | 1155 | ||||
Kcal/hr | 993300 | ||||
Refrigerant | type | R22 | |||
Control type | Thermostatic expansion valve | ||||
Compressor | Type | Semi hermetic screw | |||
Quantity | 2 | ||||
Start method | Y-△ | ||||
Energy control stage | 0--25%--50%--75%--100% | ||||
Power | Hp | 200hp*2 | |||
Evaporator | Type | Internal thread copper tube: shell and tube type | |||
Chilled water flow | M3/h | 198 | |||
Inlet/outlet pipe diameter | 5”*2 | ||||
Condenser | Type | High-efficiency internal and external thread copper tube: shell and tube type | |||
Cooling water flow | M3/h | 237 | |||
Inlet/outlet pipe diameter | 5”*2 | ||||
Control Panel | Human-machine interface touch screen (Siemens PLC) | ||||
Dimension | L*W*H | MM | 3500*1800*2200 | ||
Weight | Kg | 5000 | |||
Protection system | Compressor overheating/ oil level protection, overcurrent protection, high / low pressure protection, overtemperature protection, phase sequence/lack phase protection, exhaust overheating protection. | ||||
Note: 1. Nominal cooling capacity @ chilled water inlet and outlet temperature 12°C/7°C; cooling water inlet and outlet temperature 30°C/35°C. 2. Working range: the temperature range of chilled water is 5℃~30℃; The cooling water temperature range is 15℃~40℃; |