DOMESTIC AIR-CONDITIONING, HOT-WATER SUPPLY SYSTEM

PURPOSE: To make unnecessary wiring between a controller and each domestic air-conditioning, hot-water supply equipment, by a method wherein child devices, by each of which a control signal is transmitted to a parent device or is received therefrom, are individually provided to a plurality of the units, and means for discriminating the parent device from each of the child devices are individually provided at the parent device and each of the child devices. CONSTITUTION: Domestic air-conditioning, hot-water supply equipment including an outdoor unit 1, a hot-water supply unit 2, an additional heating unit 3 and a bathroom-drying unit 4, is controlled by a domestic air-conditioning, hot-water supply controller 9. A parent device for respectively transmitting and receiving control signals to and from each of these units is provided in the controller 9. Child devices, such as a remote controller 5 for hot-water supply, a remote controller 6 for a bathroom and remote controllers 10a to 10c for air- conditioning, by each of which the control signal is transmitted to the parent device and is received therefrom, are individually provided at these units. Means for discriminating the parent device from each of the child devices are individually provided at the parent device and the child devices. In this way, wiring between the controller 9 and each of the units can be made unnecessary.