| 摘要 |
PROBLEM TO BE SOLVED: To automatically set a proper address for communication at all times to an indoor machine without work burden at installation increasing, and without causing forgetting of setting or erroneous setting, and further without causing double setting, either. SOLUTION: A refrigerant is supplied from an outdoor machine 1 to indoor machines 2, 3, and 4 and each indoor machine 2, 3, and 4 detects the supply of the refrigerant, and during its detection, it informs the outdoor machine of that effect, and the outdoor machine 1 sets the address for communication of a corresponding indoor machine, answering the information, and informs the corresponding indoor machine of the set address for communication. |
