During the operation of the Dongguan water chiller system, to protect the compressor from damage, the pressure relay will trip and the refrigeration compressor will stop operating. To solve the problem of the pressure relay often tripping off, it is necessary to find the cause of the high pressure of the industrial water chiller, which generally includes the following reasons:
1. Excessive refrigerant charge
2. There is air in the refrigeration system
3. The refrigeration system pipeline is blocked
4. Poor condenser heat dissipation
5. Cooling water temperature too high