1. The correct operation can ensure that the goods can be stored and transported in good condition.
Only the correct use and operation of refrigerated trucks can ensure the good delivery and preservation of goods. Because refrigerated trucks are specially used for temperature-sensitive products, temperature assurance is the most critical method of operating refrigerated trucks. If used or handled improperly, the goods cannot be stored or transported in perfect condition.
2. Preventive maintenance can minimize maintenance and operating costs.
In our normal use process, the maintenance and maintenance of vehicles and refrigerators are inseparable. Only when the equipment is properly maintained and maintained on time can the normal use of the equipment and its service life be extended.
3. Appropriate 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 compression resistant. Since the frozen goods are not allowed to have the wind blowing over the surface, because the wind blows through the surface of the frozen goods, the moisture in the goods will be lost, and the quality of the goods will decrease.
4. Set the thermostat at the required temperature, and pre-cool the car for 1.5 hours to remove the heat trapped in the car; turn off the refrigerating unit when loading, and load it quickly. 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.
5. Even if the capacity of the unit exceeds the actual requirement, insufficient air circulation will be the main reason for the deterioration of the goods; any blockage around the goods may cause "hot spots".
A qualified refrigerated truck must ensure that the six sides of the carriage have good ventilation and that there is no obstruction on the six sides of the cargo; good air circulation can ensure that the goods are transported under the appropriate temperature requirements. The cold (hot) gas blown out by the refrigerating unit isolates the cold (heat) source from the outside into the compartment from the cargo, thereby protecting the cargo.
6. Goods must be stacked on double-sided pallets; plastic film cannot be wrapped on the fresh-keeping pallets, as the film will block the circulating cold air flow to the goods; do not block the floor under the goods.
General refrigerated truck floors use ventilated aluminum rail floors; however, some refrigerated trucks do not have aluminum rails and use flat non-slip floors. Usually, as a third-party transportation enterprise or enterprise transportation vehicle used for dairy products, a flat non-slip floor is used, the purpose is to be suitable for the transportation of a variety of products, or to facilitate the cleaning of the ground. However, you must pay attention when loading, and you must use double-sided pallets for loading to ensure the circulation of cold air on the ground. It is strictly forbidden to stack goods directly on a flat floor.
7. Do not stack goods in front of the evaporator outlet, otherwise, it will obstruct the cold air flow; blockage above the goods will cause the cold airflow to short-circuit. Keep a minimum distance of 225 mm between the top of the cargo and the roof of the vehicle.
When loading, do not stack the goods too high and make sure that the height of the loading is not higher than the plane height of the air outlet. If the front of the air outlet is blocked by the cargo or is too close to the cargo, it will not only affect the storage and transportation temperature of the cargo but also affect the normal operation of the refrigeration unit. Because the air outlet is blocked by the cargo, the cold air (or hot air) cannot circulate in the car normally, which causes the local temperature of the cargo to rise.
8. The interior of the carriage must be kept clean; there should be no wrapping paper and paper scraps on the ground; the scraps will obstruct the air flow or be inhaled by the evaporator. Proper handling; turn off the freezer when the door is open; shorten the time the door is open as much as possible; use strip curtains when loading and unloading goods. Use partitions to separate dry goods (empty baskets) and perishable items.
