Water source heat pump unit uses the water as the heating source and generates the refrigeration and heating in cycles. When it generates the heating, it uses the water as the heating source, when it generates the refrigeration; It uses the the water as the heating exhaust resources. It does not have the problem of frost on the evaporator.
The water source heating pump central air conditioning system mainly uses the cycle water loop as the heating source and heating exhaust source. When the water temperature in the loop surpasses certain value due to water source heating pump air conditioning unit discharge heat (refrigeration), the water in the loop will discharge the heatig to the air (underground water) via the cooling tower, when the water temperature in the loop is lower than certain value due to the water source heating pump air conditioning unit absorbs (heating generation), heating the cycling water with heating devices, or transmits the heating of the underground water into the loop.

Cooling capacity range:
1. Srew Compressor: 215kw ~ 1360kw
2. Rotary or Scroll Comperssor: 3. 5kw ~ 35kw