| 摘要 |
PROBLEM TO BE SOLVED: To independently perform heating and cooling operations for a plurality of indoor machines by a simple structure in an air conditioner having a plurality of indoor machines for one outdoor machine. SOLUTION: Two indoor machines A and B arranged in parallel are connected to one outdoor machine. A bypass 14 is provided so as to stride over an outdoor heat exchanger 2 from fourth selector valves 13a and 13b provided in piping for connecting each of the indoor machines A and B to the outdoor heat exchanger 2 to a second selector valve 11 between a compressor 1 and the outdoor heat exchanger 2. When simultaneous heating and cooling operations are carried out, a refrigerant discharged from the compressor 1 is fed to the indoor machine A for performing a heating operation to heat a room. The refrigerant from the indoor machine A reaches the outdoor heat exchanger 2 via the bypass pipe 14 to radiate heat, and passes through an expansion valve 3b corresponding to the indoor machine B for performing a cooling operation to reduce its pressure. The pressure reduced refrigerant reaches the indoor machine B to cool the room. |
