| 摘要 |
PURPOSE:To exactly control a temperature of warm water to be supplied from a water heater to a warm water circuit in response to a heating load, a temperature condition. CONSTITUTION:A discharge hot water temperature of a water heater 24 is switched by a signal output from an air conditioner side. Thus, since a warm water temperature of a warm water circuit 20 is controlled, the warm water temperature of the circuit 20 is not unitarily determined according to the discharge hot water temperature set at the heater 24 side. |
