Independent or Non-Independent refrigeration unit, how to choose?

Refrigeration units for refrigerated vehicles are generally divided into independent refrigeration units and non-independent refrigeration units.

The independent refrigeration unit has a separate power source, which is not limited by the working state of the vehicle engine and can work independently. The non-independent refrigeration unit itself has no power device and must rely on the vehicle engine to drive the compressor to work.

So, under what circumstances is it suitable for refrigerated trucks to install an independent refrigeration unit, and under what circumstances is it suitable for a non-independent refrigeration unit?

In this blog, we will tell you how to choose a refrigerated unit for your truck or van.

Independent or Non-Independent refrigeration unit, how to choose?

1, The compartment volume

The size of the refrigerated compartment is different. So there will be different sizes for suitable refrigerated units. In normal, non-independent units are used for refrigerated trucks with a height of fewer than 6 meters and a cargo volume between 4 cubic meters and 31 cubic meters.

For refrigerated trucks with a height of more than 6 meters and a cargo volume of more than 31 cubic meters, choose an independent unit.


Note: The data mentioned above is an experience value, not an absolute limit. You can also choose flexibly according to the requirements of different goods and the actual situation.


In addition, even if the same is an independent refrigeration unit, the type of vehicle used is different, and the type of unit used is also different. For example, the independent refrigeration unit used for trucks and trailers is different. Trucks mostly use medium-sized independent refrigeration units, while trailers mostly use independent refrigeration units. Large independent refrigeration unit.

2, Temperature requirements

Different goods have different temperature requirements. So with different power requirements for matching chillers.

For example, The temperature requires below -18°C when you ship frozen food such as ice cream. Ship cold meat requires a temperature of -5 °C. And there have different requirements when shipping fresh fruits and vegetables, vaccines, medicines, etc. Some goods also require the refrigeration unit to have a decorating function during transportation.


Therefore, you must communicate clearly with the manufacturer, what the goods transported by your vehicle are. In order to let the professional technicians of the manufacturer recommend a more suitable refrigeration unit for you

3, Shipping mileage

In urban short-distance transportation, there are many cases where carriages below 6 meters are used. Therefore, non-independent refrigeration units are suitable for urban short-distance transportation; independent refrigeration units are more suitable for long-distance transportation. , even if the vehicle engine stops working, the independent refrigeration unit can still work normally, ensuring that the goods will not deteriorate due to long-distance transportation.

Condenser Installation
Condenser Installation


The above is what Snewang Refrigeration shared with you about how to choose a refrigeration unit. I hope it will be helpful to you. For more information, you may visit our website: or contact us by email:

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