Refrigerant recovery and discharge operations

it is sometimes necessary to emissions of refrigerant in the system, such as to bare, or charging too much for repair or other systems, and to put off excess refrigerant will do so. Out of the size of the refrigeration dose largely determines its recycling value.

refrigerant emissions: if the system charging too much and need discharge part of refrigerant, can, in turn, the workings of the discharge for a few seconds and then check system, alternately until refrigeration dose right. If all filling quantity to discharge, continuous discharge, until the pressure disappeared.

note, refrigerant emissions will take a considerable amount of oil, be careful not to let oil splash around. When the system is running again, to make up for all the lost of oil, in order to prevent the air smelling oxygen layer destruction, protect the environment, this method should be used carefully.

recycle refrigerant: to connect pressure gauge in the compressor exhaust valve was installed between the refrigerant container, wash away the air in the pipe, put ice or cold water, the refrigerant container compressor in normal system operation, the exhaust valve opens a few turns maintenance repair, open the refrigerant container valve and pressure gauge valve, so that the refrigerant gas containers into the cold, this is on the high pressure gauge reads exhaust pressure ( Conditional use refrigerant reclaiming machine) 。

warning! Don't close the vent valve to condenser, now part of the exhaust gas into the container, enough said take at any time to check the refrigeration container weight dose, continue filling refrigerant container until reach the limit load quantity, don't act too much! If necessary, in another container.

refrigerants migration method: is no recycle condensing unit, system of the compressor can't work situation, can use the characteristics of refrigerants migration will move refrigerant to the storage vessel. If possible container will pumping air into vacuum state, and with the help of a multi-purpose pressure gauge connect it with the system. The refrigerant container cooling temperature as low as possible. And if so, the heap of ice or dry ice, open the valve, the refrigerant from the higher temperature and pressure is transferred to the lower temperature and higher system pressure is lower in the container, do not charging too much.

this migration process to continue until the system pressure is equal to the cylinder temperature refrigerant saturation pressure.

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