1. World brand compressor and high efficiency condenser, evaporator combination, super cooling, energy saving, low noise and long life. 2. Cooling range: 5 ° C -35 ° C 3.R22 refrigerant, choose environmentally friendly refrigerant R407C, R410A, R134A, R404A 4. Increase the evaporator and condenser, the unit can run in the high temperature environment below 45 degrees 5. Microcomputer control, precise temperature control at +-1 °C temperature difference 6. Low noise, high air volume fan 7. Low pressure overload pump is standard, stainless steel or high pressure pump can be selected 8. Multiple protection devices to ensure system security 9. The advanced water tank coil evaporator design not only can supply continuous and stable freezer water, but also can cool the water inside the water tank, reduce the absorption of environmental heat and improve the cooling energy efficiency. 10.NWS-W water-cooled adopts shell-and-tube condenser, which has fast heat dissipation and good cooling effect. It is suitable for high temperature and abundant water sources. 11.NWS-A air-cooled adopts finned condenser, which has good heat dissipation effect, easy to clean and maintain, and easy to install.