| 摘要 |
PROBLEM TO BE SOLVED: To provide an air conditioning system capable of transmitting a signal to the other groups while bypassing one group, during an operational failure of a control section of an indoor unit of one group or breaking of a signal line of a group one group or when an related signal is transmitted to one group. SOLUTION: In an air conditioning system which forms an outdoor unit and a plurality of indoor units based on each group and connects them with a refrigerant pipeline and connects the control section of the outdoor unit to the control section of every indoor unit with a common signal line 50, there are provided exchange units 61 to 64 which are provided to every group and monitor each of self groups and thereby are capable of transmitting a signal to the control section of the indoor unit of the other group by way of signal lines 71 to 74 which bypass the self groups, when the control section of the indoor unit of the self group is placed in the state of an operation failure or the breaking of the signal line of the self group or when an related signal to the self group is transmitted thereto. |
