| 摘要 |
PURPOSE:To enable to effect room cooling without spoiling the feeling of an user and save and energy for the room cooling by a method wherein the natural room cooling is effected by atmospheric air when a room temperature has been stabilized sufficiently by the room cooling operation. CONSTITUTION:Times T1, T2, T3 are set in a constant time timer, an atmospheric temperature is not decided within the time of T2 after beginning of the cooling operation and the cooling operation is continued if a thermostat for the room temperature is being put ON after the time of T2 is elapsed. If the atmospheric temperature is higher than a set value when the thermostat is put OFF, the cooling operation is effected while a ventilating operation is effected for the time of T1 if the atmospheric temperature is lower than the set value, and the cooling operation is effected if the thermostat is being put ON after the time of T1 is elapsed but the ventilating operation is effected if the thermostat is being put OFF. In case the ventilating operation has not been effected for the time of T3 after beginning the cooling operation, the cooling operation is switched into the ventilating operation forcibly after the time of T3 is elapsed. The switching into the ventilating operation may be effected by a manual switch. |
