What changes will happen to the lack of refrigerant and the overfilling of unmanned containers?

What changes will happen to the lack of refrigerant and the overfilling of unmanned containers? Hello everyone, the following author will introduce to you what happens when there is insufficient refrigerant or too much refrigerant in unsold containers. 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, 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°C, 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 in 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 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 sufficient refrigerant should be added after the system is vacuumed. 2. Failure phenomenon and treatment method of excessive refrigerant filling of unmanned vending machine 1. Trouble phenomenon: The refrigeration effect of the whole machine of unmanned vending machine is poor, and the pressure on the high pressure side and low pressure side is found to be too high when checked with a manifold pressure gauge. (When the compressor speed is about 2000r/min and the ambient temperature is 35°C, the pressure of the high-pressure gauge is about 19kg/cm2, the pressure of the low-pressure gauge is 2.3kg/cm2, and no bubbles flow in the sight glass. 2. Faults Reason: The refrigeration system is filled with too much refrigerant, which makes the refrigeration capacity not fully exerted, resulting in poor refrigeration effect. 3. Treatment method: connect the manifold pressure gauge to the refrigeration system of the unmanned vending machine, and slowly loosen the manifold The manual valve on the low pressure side of the pressure gauge allows the refrigerant to be discharged slowly (cannot be discharged from the high pressure side, because the refrigerant from the high pressure side will bring out a large amount of refrigerating oil) until the pressure on the high and low sides is normal, and the refrigeration can be seen from the sight glass The agent flows clearly, and occasionally bubbles flow through. If you need to learn more about unmanned vending containers, please click to enter our company's official website, there are more exciting information waiting for you to learn. Article: Back to list