| 摘要 |
PURPOSE:To enable energy-saving drive by controlling the outside-air intake volume by an intake door in linkage with a switching operation in a device to switch over the level of on/off operation room temperature of a compressor. CONSTITUTION:When an economy switch 6 for a control panel is on, a relay 11 is excited, while a thermistor 10 provided on the downstream side of an evaporator is switched over from a resistance 12A to ser the level of on/off operation room temperature of a compressor 8 to connect to 12B. Simultaneously, a reley 13 is excited to form an electrification circuit for a vacuum solenoid 15A regardless of the operational state of microswitches 14A and 14B by an intake lever 2. This construction gives a vacuum actuator 17A a negative pressure to switch an intake door 6 to a half-outside/half-inside position by the contracting operation thereof. |
