There are many noteworthy aspects to the use of refrigerated trucks in Chongqing, which are different from ordinary trucks. The refrigerated truck manufacturer has provided some considerations when loading, which will be very helpful.

Refrigerated trucks need to be pre cooled or preheated before loading. Due to the car being parked outdoors, the temperature inside the cabin is usually the temperature of the external environment. If the temperature of the transported goods is not the ambient temperature, when the goods are loaded onto the transportation vehicle, the ambient temperature will affect the temperature of the transported goods, resulting in a change in the quality of the transported goods. Therefore, before loading, the carriage should be cooled to the required temperature in advance.
When loading and unloading refrigerated trucks, the refrigeration system should be turned off. When loading and unloading goods, many people do not turn off the refrigeration system of the refrigerated truck. Actually, this is a very wrong operation. Because when we pre cool a refrigerated truck, if we don't close and open the door, due to the operation of the fan in the evaporator of the refrigeration unit, the front of the fan is positive pressure and the rear is negative pressure, so the cold air is discharged from the top.
A part of the carriage, as well as the lower part, will quickly absorb the hot air from the outside, leading to the cooling of the carriage. The internal temperature rises rapidly. If the cargo is loaded and unloaded after stopping, the airflow stops, and the air pressure inside and outside the carriage is the same, the speed of using external hot air to enter the carriage is relatively slow.
There are many noteworthy aspects to the use of refrigerated trucks, which are different from regular trucks. The following technical engineers from Qingdao Yakai Automobile have provided some considerations for refrigerated truck drivers and friends when loading, which will be very helpful.
Refrigerated trucks need to be pre cooled or preheated before loading. Due to the car being parked outdoors, the temperature inside the cabin is usually the temperature of the external environment. If the temperature of the transported goods is not the ambient temperature, when the goods are loaded onto the transportation vehicle, the ambient temperature will affect the temperature of the transported goods, resulting in a change in the quality of the transported goods. Therefore, before loading, the carriage should be cooled to the required temperature in advance.
When loading and unloading refrigerated trucks, the refrigeration system should be turned off. When loading and unloading goods, many people do not turn off the refrigeration system of the refrigerated truck. Actually, this is a very wrong operation. Because when we pre cool a refrigerated truck, if we don't close and open the door, due to the operation of the fan in the evaporator of the refrigeration unit, the front of the fan is positive pressure and the rear is negative pressure, so the cold air is discharged from the top. A part of the carriage, as well as the lower part, will quickly absorb the hot air from the outside, leading to the cooling of the carriage. The internal temperature rises rapidly. If the cargo is loaded and unloaded after stopping, the airflow stops, and the air pressure inside and outside the carriage is the same, the speed of using external hot air to enter the carriage is relatively slow.