| 摘要 |
PROBLEM TO BE SOLVED: To provide a vending machine, configured so that refrigerant stayed in a resting condenser can be recovered and returned to a refrigerant circulation circuit. SOLUTION: A refrigerant circuit 1000A includes a cooling high-pressure piping system which successively connects a compressor 1, a gas cooler 2, and an expansion means 4; a cooling low-pressure piping system which successively connects the expansion means 4, a left evaporator 5L, a middle evaporator 5M and a right evaporator 5R and the compressor 1; and a heating high-pressure piping system which successively connects the compressor 1, a left condenser 7L, a middle condenser 7M, the gas cooler, and the expansion means 4. The outlet side 8M of the middle condenser 7M of the heating high-pressure piping system and the outlet side of the expansion means 4 of the cooling low-pressure piping system are connected to each other by a refrigerant recovery pipe 85M provided with a middle refrigerant recovery solenoid valve 85Mv. The solenoid valve 84Mv is opened during execution of HCC operation mode or CC operation mode to suck the refrigerant stored in the middle condenser 7M to a pipe 45 of the cooling low-pressure piping system. COPYRIGHT: (C)2010,JPO&INPIT
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