| 摘要 |
PROBLEM TO BE SOLVED: To simplify a wiring work in a connecting device for hot-water room heating by providing a power supply plug socket for an indoor machine on a connecting box. SOLUTION: A connecting device for a hot-water room heating machine which connects hot-water pipes 4a, 4b for connecting an outdoor machine 2 to an indoor machine 3, a power supply wire 12 for supplying an electric power to the outdoor machine 2, and a signal wire 5 for connecting the outdoor machine 2 and the indoor machine 3 through a wall 1, is provided with a connecting box 10 mounted so as to cover a mounting hole provided on the wall 1, and a power supply chord 7 for supplying a power to the connecting box 10. The connecting box 10 is provided therein with a coupling tube 13, connecting the hot-water pipes 4a, 4b mutually, a first plug socket 15, to which the power supply line 12 is connected, a connector 14, connecting the signal wires 5 mutually, and a second plug socket 8, through which power is supplied to the first plug socket 15 so as to be synchronized with the power supply to the first plug socket 15.
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