What happens if the unmanned vending machine has insufficient refrigerant and overcharged?1

What happens if the unmanned vending machine has insufficient refrigerant and overcharged? The editor of the Dongguan unmanned vending machine manufacturer is here to introduce to you what happens when the unmanned vending machine has insufficient refrigerant and overfilling. 1. Failure phenomenon and reasons of insufficient refrigerant of unmanned vending machine 1. Failure phenomenon: the whole machine of unmanned vending machine has poor refrigeration effect, and the air at the outlet is a bit cool, and the pressure on the high pressure side and low pressure side is found to be both Low (when the compressor speed is 2000r/min and the ambient temperature is about 35℃, the low-pressure meter index is less than 1kg/cm2, and the high-pressure meter index is less than 10kg/cm2), and the flow of bubbles can be seen from the sight glass. 2. The cause of the failure: The refrigeration system of the unmanned vending machine has refrigerant leakage points, which leads to insufficient refrigerant. 3. Treatment method: 1) Use an electronic leak detector to find out the leak point and repair or replace parts. 2) If the parts have not been replaced, only an appropriate amount of refrigerant can be added; if the parts are replaced, an appropriate amount of refrigerating oil should be added as required, and the system should be evacuated before adding enough refrigerant. 2. Dongguan unmanned vending machine manufacturers remind unmanned vending machines to refill excessive refrigerant failure phenomenon and treatment methods 1. Failure phenomenon: the unmanned vending machine's entire machine has poor refrigeration effect, and the high pressure side is found when checked with a manifold pressure gauge , The pressure on the low pressure side is too high (when the compressor speed is about 2000r/min and the ambient temperature is 35℃, the pressure of the high pressure gauge is about 19kg/cm2, and the pressure of the low pressure gauge is 2.3kg/cm2. The air bubbles flow. 2. The reason for the failure: too much refrigerant in the refrigeration system can not fully exert the refrigeration capacity, resulting in poor refrigeration effect. 3. Treatment method: connect the manifold pressure gauge to the refrigeration system of the unmanned vending machine , Slowly loosen the manual valve on the low-pressure side of the manifold pressure gauge to allow the refrigerant to be discharged slowly (not from the high-pressure side, because the refrigerant from the high-pressure side will bring out a large amount of refrigerant oil) until the pressure on the high and low sides is normal, and at the same time You can see the refrigerant flowing clearly in the liquid mirror, and occasionally there are bubbles flowing through. The above content is organized and released by the editor of the Dongguan unmanned vending machine manufacturer. If you need to know more about the unmanned vending machine, welcome Click to enter our company's official website

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