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What is the importance of U- trap in air conditioner pipe line?

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Question added by Rizwan Haider Rizu
Date Posted: 2016/01/17

Prevent outside air from entering the device. Prevent small animals from entering the device. Prevent outside odor from entering the device. If it is a chiller display unit, ice foam will form if outside air enters it to prevent it.

To avoid the return of oil to the engine

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