| 摘要 |
PROBLEM TO BE SOLVED: To provide a method by which a refrigerant leakage inhibitor can be easily sucked into a refrigerant circuit without spending much equipment costs irrespective of seasons.SOLUTION: Air conditioning equipment starts pump-down operation, first. During the pump-down operation, a refrigerant leakage inhibitor liq1 is sucked into a refrigerant circuit 10 from a service port 20d disposed between a liquid side shut-off valve and the inlet of a compressor in the refrigerant circuit 10. Alternatively, during the maintenance of the air conditioning equipment, the refrigerant circuit 10 is vacuumized and, then, during a time when the refrigerant circuit 10 is vacuum, the refrigerant leakage inhibitor liq1 is sucked into the refrigerant circuit 10 from the service port 20d disposed in the refrigerant circuit 10. |
