| 摘要 |
PURPOSE:To promote a rising of a room temperature by a method wherein when an operation is started, if a room temperature is less than a predetermined temperature, a current value flowing in a proportional valve is increased to increase output of a hot air heater, the number of revolutions of an air blowing motor is reduced and the operation is started, and then the operation is returned to its normal operation after the room temperature reaches a set temperature. CONSTITUTION:When an operation is started, if a room temperature is lower than a predetermined temperature T programmed in a micro-computer 1, a proportional valve current increasing means 14 is operated by a timer means 19, an amount of combustion is defined as K + a, and the number of revolutions of the air blower motor is defined as N - b. After the operation is started under this condition, an operation of the current increasing means 14 is stopped after a predetermined time (ta) by a timer means 19, then the operation of the current increasing means 14 is stopped to control a temperature within a normal range of rated output. However, when the room temperature reaches a predetermined temperature Ts within a predetermined period of time (ta), the operation of the current increasing means 14 is stopped with a signal from a room temperature discriminating means 22 and at the same time an air blower motor output setting means 20 may set the number of revolutions of the air blower motor corresponding to a combustion output and then a temperature control within a range of normal rated output is carried out. |
