water chilling unit 

Chiller is a mechanical equipment used to provide constant temperature cold water, which is widely used in air conditioning systems in commercial and industrial buildings to achieve cooling and thermostatic control of the indoor environment.

There are two main types of air-cooled chiller and water-cooled chiller:

Air-cooled chiller: use fans to introduce ambient air to the unit, and heat exchange through the fin heat exchanger and refrigerant, without additional cooling water system.

Water-cooled chiller: need to support the cooling tower and cooling water circulation system, through the cooling water and refrigerant in the condenser for heat exchange, cooling water in the cooling tower to release heat after recycling.

Main equipment composed of the system: machine room part (air conditioning host and other main equipment), water chiller, cooling water pump, chilled water pump, cooling tower. The chiller shall provide chilled water (7 / 12℃).

Heat source: boiler, hot water pump. The boiler provides hot water (60 / 50℃), air conditioning area (main equipment of air conditioning end) and full air air conditioning treatment unit (including fresh air unit).