| 摘要 |
PURPOSE:To reliably transmit the information on the limit value for a target temperature when setting the target temperature by changing the feature of the voice generated when the data of a target value data updating means reaches from the preset value immediately before the limit value to the limit value. CONSTITUTION:When a target temperature is increased, the operation of a switch 34b is judged, an energizing signal is applied to the buzzer 34d of a control panel 34, and an internal-process timer is started from 0. If the internal data TSET indicating the target temperature has not reached the value immediately before the upper limit, the timer waits for 50mm.sec; and if reached, it waits for 100mm.sec. During this wait time, the buzzer 34d is kept ringing, and when the data TSET is changed from the value immediately before the upper limit to the upper limit value, the buzzer 34d is kept ringing longer as compared with other cases. Next, a de-energizing signal is applied to the buzzer 34d, and after waiting for 0.5sec, the data TSET is counted up by the preset value. Accordingly, when the maximum heating control is started, the buzzer is kept ringing for a long time, thus the transition to the maximum heating or cooling control is reliably informed to the crew. |
