| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To obtain an air conditioner suppressing increase of a communication traffic amount after service restoration. <P>SOLUTION: When an instantaneous power failure/service interruption and restoration detecting circuit 9 detects the service restoration, a communication signal between a transmission line 7 of a centralizing system and a transmission line 4 in the same coolant system is intercepted by a switch circuit 11. After detecting the service restoration by the instantaneous power failure/service interruption and restoration detecting circuit 9, a control signal for operating a compressor 8 is transmitted via the transmission line 4 in the same coolant system. After transmitting the control signal for operating the compressor 8, the communication signal is relayed between the transmission line 7 of the centralizing system and the transmission line 4 in the same coolant system by the switch circuit 11. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
