How to deal with high pressure protection of air source heat pump

High voltage protection is one of the common faults of air source heat pump units. The high voltage protection is to protect the compressor. It is the protection function of the air source heat pump system. The origin of the fault is mostly external factors:

First, the condenser fouling is serious, the heat exchange efficiency is reduced, the heat discharged from the compressor is not released in time, and the air source heat pump has a high voltage protection fault.

Troubleshooting method: The water quality should be treated in areas with poor water quality. The number of detergents should not be too much. The copper coils are easy to wash and perforate.

Second, the hot water circulation pump is broken or the water level of the water tank is too low (the hot water circulation pump can not pump water), the water flow is insufficient, the heat exchange efficiency is lowered, the heat discharged from the compressor is not released in time, and the air source heat pump has a high voltage protection fault.

Troubleshooting: Replace or repair the pump, check the water tank for water, and the hydration system can work normally.

Third, the filter installed on the circulation pipe is blocked, the water flow is insufficient, the heat exchange efficiency is lowered, the heat discharged from the compressor is not released in time, and the air source heat pump has a high voltage protection failure.

Troubleshooting: Clean the filter and recommend cleaning it once a month.

Fourth, the high voltage protection switch is damaged. Troubleshooting method: Replace the high voltage protection switch.

Troubleshooting method: Replace the high voltage protection switch.

5. The default source water temperature of the air source heat pump unit is 55 degrees. If the temperature is set too high, high voltage protection faults will also occur.

Troubleshooting method: Under the conditions of use, the temperature is set at 55 degrees or less.

Sixth, the air source heat pump system is too high in fluorine injection, and high voltage protection faults will also occur.

Troubleshooting method: It should be based on the standard of fluorine injection on the nameplate of the air source heat pump unit.