| 摘要 |
PURPOSE:To make it possible to carry out a comfortable room temperature control by connecting a switching valve for adjusting the quantity of hot water to a heat exchanger and electrically connecting to the switching valve a temperature sensor detecting the indoor temperature and controlling the opening degree of the switching valve. CONSTITUTION:When a power source switch 9 is turned ON, the heater 27 of a switching valve 3 is heated, a flowpath 18 is opened by the action of a heat sensitive element 25 after several minutes, and hot water is fed to a heat exchanger 2. When hot water begins to circulate through the heat exchanger 2, a cool air flow preventing thermostat 13 is heated and turned ON, and the motor 14 of a blower 1 starts the operation of the blower 1. Air sucked up from a suction port 7 is sucked up and sent to the heat exchanger 2. Air sucked up through the suction port 7 is sucked into the blower is ejected out of a hot air blow-off port 6. On the other hand, the temperature sensor is installed in the vicinity of the suction port 7. When the indoor temperature increases, the temperature sensor detects the room temperature rise to actuate the relay of a temperature control circuit, and the heater 27 of the switching valve 3 is turned OFF. |
