The refrigeration unit is an important part of the refrigerated truck. Its cooling effect and performance directly affect the quality of the refrigerated truck. Different refrigerating units also cause the price of the refrigerated truck to be different. Here, Chengli professional technicians give you the best daily maintenance method for the refrigerator. The main maintenance of the refrigeration unit is from the following three aspects:

First, refueling the refrigeration unit of the refrigerated truck

1. Connect one end of the fueling pipe to the filling valve of the compressor inlet end, slightly open the filling valve, use the pressure in the system to discharge the air in the fueling pipe, and insert the other end into the oil drum.
2. Properly close the small system refrigerant supply valve and adjust the suction low pressure alarm setting to avoid parking due to low pressure.

3. When the suction pressure is lower than atmospheric pressure, open the fueling valve and the oil will automatically enter the compressor.

2. Replenishing the refrigerant to the refrigerating machine of the refrigeration unit of the refrigerated truck

1. Connect one end of the fluorinated tube to the system fluoridation port, and the other end to the fluorine bottle, and drive out the air inside the tube through the fluorinated hose.
2, first open the valve of the fluorine bottle, confirm that there is no leakage, then open the valve at the fluoride port
3, R23 system should put the bottle mouth up, and R404A system should put the bottle mouth down to ensure rapid fluoride
4. When the fluorine is added, the valve of the fluorine bottle should be closed first, and then the valve with the fluorine port should be closed.
3. Air to the refrigerator of the refrigeration unit of the refrigerated truck

1, the high temperature system should be carried out while parking, the low temperature system is best carried out during operation
2, the specific operation should be careful, the wire plug should not be opened too large, and do not stay away from the scene
3, air operation should be carried out in several times, not too much deflation at one time, so as not to release excess refrigerant.

The price of refrigerated trucks is also affected by the manufacturers of refrigerated trucks. The prices of refrigerated trucks produced by different manufacturers of refrigerated trucks are also different. The impact is relatively small. The scale of refrigerated truck manufacturers is relatively low, and the price of refrigerated trucks at the time of delivery is relatively low. It has an advantage. The price of refrigerated trucks is also affected by the size of manual market demand. The demand for high prices is also a rule; the price of refrigerated trucks is also affected by national policies and refrigerated truck industry standards.