Follow the editor of Cold King Refrigeration Unit to take a look:

1. Self operated units and non self operated units

Non self operated refrigeration units have low prices and easy maintenance, but they do not have their own energy assembly and must rely on car engines to mobilize compressors; Affected by the condition of the car engine and not as functional as a self powered unit.

The self operated refrigeration unit is equipped with an engine and generator that does not supply energy and electricity to the refrigeration system, and is not limited by the condition of the car engine. This type of refrigeration machine has relatively stable functions, but the higher the price, the more expensive the accessories.

2. Cryogenic unit and preservation unit

In terms of price, refrigeration units are more expensive and have lower temperatures. The fresh-keeping unit is cheap, but when it comes to cheap fresh-keeping units, the unit itself does not have defrosting function. Even though some fresh-keeping units claim to be able to reach temperatures as low as minus ten degrees, it is still an exaggeration. At the time of purchase, choose between cryogenic units and preservation units based on the temperature requirements of the goods transported by the refrigerated truck.

3. Imported refrigeration units and domestically produced refrigeration units

Imported refrigeration machines are expensive, have good cooling effects, and are suitable for economically strong users. Domestic refrigeration units have little difference in temperature control compared to foreign brands, but their prices are more suitable for ordinary users.

Regardless of whether the unit is domestically produced or imported, it is important to ensure that the temperature sensor of the unit is installed at the return air position of the evaporator, as the temperature readings may differ when the temperature sensor of the unit is installed at the return air or exhaust air position.