Central air conditioners are divided into two types: air-cooled units and water-cooled units. The fan refers to the direct exchange of fresh air for cooling or heating. The water machine refers to cooling or heating the heat medium water and sending it to the fan coil air-conditioning system. The cold energy is sent to the designated lot.

Chillers are also known as: refrigerators, refrigeration units, ice water units, cooling equipment, etc. Because they are widely used in various industries, the requirements for chillers are also different. The chiller consists of four main components: compressor, evaporator, condenser, and expansion valve, thus realizing the cooling and heating effect of the unit..