| 摘要 |
PURPOSE:To provide a fine automatic control and manual operation of the air conditioner of auxiliary engine drive type for a bus or the like by a method wherein the air cooling and warming performance and the change-over of ventilation is controlled electronically in accordance with a detected temperature and a preset temperature, and the operation mode is set by hand. CONSTITUTION:A comparison circuit 44a provides outputs A-M in accordance with a change in the total resistance of a room temperature sensor 14, an outdoor temperature sensor 8 and a temperature setting variable resistor 45, and the outputs A-M are inputted into an operation circuit 44b. The operation circuit 44b provides outputs O-Z, which control auxiliary engine speed control electromagnetic solenoids 46 and 47, a fan motor 18, speed control resistors 48 and 49, ventilation change-over means 43 and the like to operate according to a predetermined mode automatically. When an air cooler switch 54 or an air warmer switch 55 is thrown to supply power to relay coils 56 and 57, the power supply to the operation means 44 is interrupted so that the air cooling or air warming operation is carried out according to the predetermined mode. Thus, a fine air conditioning by the automatic control and a manual operation become possible. |
