| 摘要 |
PURPOSE:To surely recognize the working of an actuating device by adding an energizing assurance circuit to a remote controller to be connected in parallel to an operating circuit and simultaneously forming a changeover switch to connect alternatively the operating circuit and the energizing assurance circuit to a transmission/reception cable. CONSTITUTION:When the operation switch 11A of a main remote controller RA is turned on, a variable resistor 10A, on operation display device 12 and the priority display device 13A of the controller RA are energized without using a combustion display device 14a. Thus both devices 12 and 13A are turned on and also set under a combustion enable state. When the combustion is started under such conditions, the polarities are switched between transmission/reception cables CA and CB by a combustion detecting circuit 6. Thus the energizing state to a variable resistor 10B and a priority display device 13B is switched to another state via a combustion display deice 14b in a secondary remote controller RB. Then the device 14b is turned on.
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