| 摘要 |
PURPOSE:To realize a comfortable and economical heating operation of the titled by increasing the quantity of blast of a blower with the decrease in the difference between the room temperature and the preset temperature and decreasing the combustion quantity of a burner. CONSTITUTION:When the burner 2 is in a strong combustion mode and the blower 11 is in a weak wind mode, indoor air is set so that it increases by 40 deg.C, and the room temperature is increased so that no cool wind feeling is given to residents who directly receive wind. When the room temperature increases up to a point (b) and the difference between the room temperature and the preset temperature becomes DELTAT3, a third room temperature thermoswitch is changed over to the high side. Upon this occasion, the blower 11 is set to change over from the weak wind to the strong wind and the quantity of blast is doubled. Further, when the room temperature approaches the preset temperature and reaches a preset temperature and reaches a point (c), the differential temperature reaches DELTAT2, a second room temperature thermoswitch is opened. Upon this occasion, a fuel valve 6 is closed, because the supply of a current thereto is cut off. Therefore, the quantity of the fuel supplied to the second room temperature thermostat 2 is reduced to half, and the burner 2 assumes a weak combustion state. Accordingly, the increase in the exhaust air temperature in the burner becomes 10 deg.C, and the room temperature slowly increases and gradually approaches the preset temperature. |
