Grain chillersThe problems encountered during use are as follows:

1. Overvoltage protection shutdown;

2. Shutdown protection for high air temperature and humidity;

3. Overload protection shutdown;

4. Inverter fault protection shutdown;

5. The display screen shows abnormal readings;

6. The refrigeration compressor is not working.

　　

When encountering the above problems, many people believe it is a device malfunction. But in reality, whether the grain cooler can be used normally depends on the operating methods of personnel and the temperature of the environment. This is one of the important factors that cannot be ignored between the objective environment and hardware facilities.

　　

The first thing we will talk about today is overvoltage protection shutdown. This problem occurs quite frequently. How can we determine and solve it?

1. To understand the local ambient temperature and startup time;

2. Be able to observe whether high voltage protection or low voltage protection shutdown occurs;

a、 If the ambient temperature is too high when starting up, there may be a high-voltage protection shutdown.

This is because the pressure of Freon varies with the ambient temperature, and different temperatures correspond to different evaporation pressures. When the ambient temperature exceeds 36 ℃, even if the equipment is not working, its pressure will reach 12kg/cm2. At this time, when the compressor is turned on, its exhaust pressure is likely to exceed 25kg/cm2 overpressure protection.

In this situation, you can press the reset button of the pressure relay to reset, and when the ambient temperature drops, restart the machine.

b、 When starting up, the ambient temperature is not high, resulting in high voltage protection shutdown.

　　

The above is a summary of some daily application experience about grain coolers, hoping to be helpful to you.