What is the reason for compressor thermal protection?

Reasons for compressor thermal protection

Too much refrigerant in the air-conditioning system leads to excessive system pressure, which leads to thermal protection of the compressor; excessive pressure of the air-conditioning system pipeline blockage leads to thermal protection of the compressor; a serious lack of refrigerant in the system leads to frequent work, and overheating leads to thermal protection of the compressor.

The compressor overheating protection means to protect the compressor motor from being burned. When the motor temperature or the compressor's own temperature exceeds a certain value, the working power of the compressor is disconnected through some built-in or external protection devices, so as to achieve protection. The role of the compressor. The refrigeration compressor sucks the low-temperature and low-pressure gaseous refrigerant from the system and directly enters the shell cavity of the compressor. The sucked refrigerant first cools the motor and then compresses it. Therefore, the degree of superheat of the sucked refrigerant vapor is an important reason for the overheating of the compressor.

The method of compressor thermal protection

1. The heat sink of the external machine is too dirty, clean the heat sink;

2. When the fan speed drops, use a water pipe to rinse the heat sink of the outdoor unit;

3. The inner filter is too dirty, clean it in time;

4, too much freon, find professional maintenance personnel to check the pressure, then vacuum, and add fluorine after collecting fluorine;

5. If the vacuuming of the refrigeration system is not complete, replace the refrigerant.