Pingyang chunde auto parts co., LTD. : fault analysis of automotive air conditioning system (III)
3. Touch the high-pressure tube and low-pressure tube with your hands and carefully feel their temperature. When the refrigeration system is working properly, the normal temperature of the high-pressure pipe is about 50 to 60 degrees Celsius, which means that you can hold it firmly for about 30 seconds. The temperature of the low pressure tube is about 5 to 6 degrees Celsius, which means you can feel the ice hand with your hand.
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