| 摘要 |
A refrigerant handling system that includes a compressor and a condenser, each having an inlet and an outlet, with the condenser inlet normally being connected to the compressor outlet so that refrigerant in vapor phase from the compressor is at least partially condensed in the condenser. To clear liquid refrigerant from the condenser, the compressor outlet is disconnected from the condenser and connected to a refrigerant storage container, and the condenser outlet is connected to the compressor inlet. The compressor is then operated to draw refrigerant in vapor phase from the condenser, and to feed such refrigerant to the refrigerant storage container bypassing the condenser. A gauge is coupled to the compressor inlet so that compressor operation may be terminated by the operator when refrigerant vapor pressure in the condenser drops below a preselected threshold level. Thus, the condenser is cleared of refrigerant, which is now stored in the refrigerant storage container. The handling system may then be reconnected in the normal manner for recharging and operation in connection with a differing type of refrigerant without contaminating the latter.
|
