Set the thermostat at the required temperature and pre-cool the car box for 1.5 hours to remove the heat trapped in the car box; turn off the refrigerating unit during loading and quickly load the goods. When loading goods, the carriage must first be pre-cooled or pre-heated. Because the vehicle is parked in the open air, the temperature of the cabin is usually the temperature of the outside environment. If the temperature of the goods being transported on the Metal Cooler Cart is not the ambient temperature, and the goods are loaded into the carriage, the ambient temperature will affect the temperature of the goods being transported, resulting in changes in the quality of the goods being transported.

The cargo must be pre-cooled to the required temperature, and the temperature of the cargo should be checked when loading; the refrigeration unit is used to maintain the temperature of the cargo, not to reduce the temperature of the cargo. Many users of refrigerated trucks have a wrong concept. They always think that the refrigerating unit on the freezer truck can freeze or heat the goods loaded into the compartment at will to the required temperature. Over a certain period of time, the temperature of the cargo is reduced or raised to the required temperature. However, the opposite is true, and the goods are damaged or deteriorated. Because the refrigeration unit of the refrigerated truck is not to reduce the temperature of the goods, but to maintain the temperature of the goods. Therefore, when loading goods, the temperature of the loaded goods must be measured first. The storage temperature of the goods must be consistent with the transportation temperature.

Proper packaging is essential to protect the goods. Use non-ventilated packaging boxes for frozen goods, and use ventilated packaging boxes for fresh goods. The packaging box must be compressive. Since the frozen cargo is not allowed to have wind blowing over the surface, so as to avoid the loss of moisture in the cargo, which will affect the quality of the cargo. However, due to its own characteristics, fresh products are still breathing during storage and transportation, and the goods will deteriorate if they are not ventilated. Therefore, this kind of cargo has good ventilation and ventilation.

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