Precautions for daily use of refrigerated trucks
The carriage must be pre-cooled or pre-heated before loading
Before loading, the carriage must be pre-cooled or pre-heated for about 1.5 hours. Because the vehicle is parked in the open air, the temperature of the vehicle compartment is usually the temperature of the external environment. Generally speaking, the temperature of the goods being transported cannot be the ambient temperature. If it is, there is no need for refrigerated truck transportation. When the goods are loaded into the carriage, the ambient temperature in the carriage will affect the temperature of the goods being transported, which will cause the quality of the goods to be changed. Therefore, the carriage must be pre-cooled to the necessary temperature before loading.
Turn off the refrigerator to assemble the goods and unload the reefer temperature loss more slowly
The refrigeration unit must be turned off when loading and unloading. Many people do not turn off the refrigeration unit when loading and unloading goods, thinking that this will make the temperature of the goods rise more slowly. In fact, this is a very wrong understanding.
If the refrigeration unit is not turned off, when the car door is opened, because the fan of the refrigeration unit evaporator is working, the fan blows out the cold air from the upper part of the car, while the lower part will quickly suck in the hot air from outside, causing the temperature inside the car to rise rapidly ; If the cargo is loaded and unloaded after shutting down, the air flow stops because the fan is in the stopped state, and the air pressure inside and outside the compartment is the same, and the hot air outside enters more slowly.
Clean the refrigerated compartment frequently to keep the inside of the compartment clean
Cleaning the refrigerated compartment has two functions. One is to keep the interior of the compartment clean and prevent strange smells from appearing in the compartment. This should be easy to understand. The refrigerated truck is a bit similar to a refrigerator. Refrigerator trucks are often loaded with different goods, especially fish, meat, etc.****** The compartments are cleaned every time the goods are delivered.
Another function is to prevent the evaporator fan of the refrigeration unit from sucking impurities into the evaporator coil, thereby reducing the refrigeration effect of the refrigeration unit. This is one of the reasons why people feel that the refrigeration effect is not as good as the beginning after a few years of refrigerated trucks. .
Cargo emissions are particular about keeping the cold air circulating in the compartment