Controls

Temperature Control
The temperature control regulates the temperature regulating flap via a cable and opens the water valve at an angle of less than 20°.

Air Volume Control
It switches the blower in 3 speeds via fixed resistors, which are located in the heater.

Air Up Control Lever
It operates via a cable the flap in the heater/air conditioner for air distribution to the windshield (defrost)

Air Center Control Lever
It operates via a cable the flap in the heater/air conditioner for air distribution Out of the instrument panel nozzles (ventilation).
With air conditioning the control lever will also have a circuit breaking switch (track circuit) for the compressor. The compressor will be switched off with a flap opening of less than 20%, to avoid liquid knocks in the air conditioner which could destroy the compressor.

Air Down Control Lever
It operates via a cable the flap in the heater/air conditioner for air distribution down to the footwells.
With air conditioning the control lever will have the same compressor circuit breaking switch as for the air center control lever.

A/C Compressor Push Button Switch
Air conditioner is switched ON and OFF with this push button switch.
When air conditioning is switched ON, the heater blower motor will always run in at least 1st speed. When air conditioning is switched ON. the additional fan will always run in at least 1st speed.

Fresh Air/Bypass Air Push Button Switch
When air conditioner is operated, it is used to switch to fresh air or bypass air circulation as desired. In the bypass air switch position the heater blower motor will always run in at least 1st speed.