The main function of the water chiller is to cool the water and liquid in the working host to keep it within a certain temperature.
Regarding the handling of common problems of industrial water chillers, please see the table below.
| Serial number | Failure phenomenon | Contributing reasons | Approch |
|---|---|---|---|
| 1 | The power light does not light up | The equipment is not powered or the circuit breaker is not turned on | Check the power supply or push on the air switch |
| the wire is not connected properly | Check the wires and connect them | ||
| the power indicator is damaged | Replace indicator | ||
| 2 | The refrigeration compressor does not start | The power switch is not turned on or the circuit is faulty | Check the power switch, electrical components, wiring |
| the power supply voltage is too low | Measuring voltage | ||
| the refrigerant is under low pressure protection | See refrigerant low pressure alarm for details | ||
| the compressor is damaged or overloaded | Update compressor or check current | ||
| 3 | Fan does not run | Fan motor loss ring | Update motor |
| refrigerant high pressure has not reached the set value | Check if the refrigerant high pressure alarms | ||
| 4 | Refrigerant high pressure alarm (air-cooled type) | The ambient temperature is too high | Check the ambient temperature and try to reduce the ambient temperature |
| the fan motor is damaged | Update motor | ||
| the wind condenser is too dirty | Clear wind condenser | ||
| the refrigerant is filled too much | Excess refrigerant in the archway | ||
| 5 | High pressure refrigerant alarm (water-cooled type) | the cooling water temperature is too high | Check the cooling water temperature and reduce it to the required range |
| the cooling water pump is damaged | Replace the water pump | ||
| the water condenser is too dirty | Cleaning the water condenser | ||
| he refrigerant is filled too much | Exhaust excess refrigerant | ||
| the amount of cooling water is small | Increase the amount of cooling water | ||
| 6 | Low refrigerant alarm | the refrigerant leaks | Shut down to check for leaks |
| the filter drier or the expansion valve is blocked | Stop replacement | ||
| 7 | Frozen water outlet temperature is high | the high pressure of the refrigerant | See the refrigerant high pressure alarm for details |
| the small water chiller | Replace large-size chiller | ||
| the leakage or the small amount of refrigerant | Check the cause of the leak and fill with refrigerant | ||
| 8 | The pipeline pressure drop is too large | The pipeline valve is not fully opened | Open the valve |
| the pipeline resistance is too large | Pipeline redesign and installation | ||
| the temperature setting is small | Repair the pipeline | ||
| the evaporator is blocked | Reset temperature | ||
| 9 | Chiller frequently trips | Bad contactor / bad MCB | Replace contactor and MCB |
| current setting value is too low | Reset current | ||
| power supply lack of phase | Correct wiring | ||
| 10 | Phase sequence light is on | the phase sequence of the power supply is reversed, and the neutral line is not connected | Adjust the power supply phase sequence wiring |