| 摘要 |
To provide a safe refrigeration cycle apparatus which uses a flammable refrigerant and in which the flammable refrigerant is prevented from, for example, igniting with the flame of, for example, a burner during replacement of a component of the refrigeration cycle apparatus. Disclosed is a part replacement method for replacement of a part of a refrigeration cycle apparatus 100 including a refrigerant circuit in which a flammable refrigerant is circulated and a container connecting device 28 for controlling the refrigerant such that the refrigerant is allowed to flow out of the refrigerant circuit. The method includes a refrigerant recovery step of allowing the refrigerant to flow out of the refrigerant circuit through the container connecting device 28, a pressure reduction step of connecting a pressure reducing device 29B to the container connecting device to reduce a pressure in the refrigerant circuit until the pressure in the refrigerant circuit reaches a set pressure or a setting time is reached, and a part replacement step of removing the part from the refrigerant circuit by heating to replace the part. |
