| 摘要 |
PROBLEM TO BE SOLVED: To provide a vending machine which smoothly performs start of heat pump operation in short time and at low cost even in performing heat pump operation at high condensation temperature of a heating heat exchanger and high pressure at a high-pressure side. SOLUTION: Start of a compressor can be smoothly performed in short time and at low cost, since all circuits through which coolant circulates are promptly opened and pressures of an entrance and exit of the compressor are counterbalanced by opening a solenoid valve of entrance side of the evaporator and heating heat exchanger corresponding to operation mode, and fully opening an electronic expansion valve, when starting of a cooling heating operation mode. COPYRIGHT: (C)2009,JPO&INPIT
|
