| 摘要 |
PURPOSE:To lower the rate of operation of a cooler, by providing the sutomatic temperature controller of a reheat-type air conditioner with a display unit for instructing the person in an automobile whether the cooler should be operated or stopped, on the basis of judgment of whether or not there is a margin for cooling cpacity and whether or not dehumidification is necessary. CONSTITUTION:An automatic temperature controller 10 functions to automatically keep the temperature of an automobile room at a set level. The controller 10 includes a judgment circuit 20 and a defroster switch 21. When the circuit 20 judges that there is a margin for cooling capacity beause the temperature of external air is lower than a set level, the circuit generates an output of high level. If, at that time, the switch 21 is open, namely, dehumidification is not necessary, the circuit 22 generates an output of high level, which indicates that a cooler can be stopped, and a display light is turned on through a circuit 23 to recommend the stoppage of the cooler. When a detection switch 24 has found out the shortage of a coolant, a display light 26 is turned on. |
