323001006 - E6020 AIR CONDITIONER - FUNCTIONAL DESCRIPTION (Manual Air Conditioning)
FUNCTIONAL DESCRIPTION
The fan N085 is supplied by the line protected by fuse F8 located in the engine compartment junction unit B001. The activation of N085 is managed by relay T08 located in B001, the coil for T08 receives an ignition-controlled power supply except during starting (INT/A) from the line protected by fuse F31 located in the junction unit under the dashboard B002.The adjustment of the speed takes place by means of the fan regulation resistances O030. There are four possible positions for the control knob H080 (connector A) (other than the rest position); in each of the four positions H080 provides the reference earth for O030, but altering the position also changes the route of the current in O030. A route composed of several resistances in series equals a lesser current circulating in the fan resulting in a lower speed. Conversely, a route comprising a smaller number of resistances in series corresponds to a higher current and consequently a higher fan speed.The climate control system control H080 receives an ignition-controlled supply (INT) at pin 1 of connector B via the line protected by fuse F51 located in the junction unit under the dashboard B002. The reference earth is received at pin 1 of connector A.H080 sends the compressor engagement request signal from pin 2 of connector B. | the fan N085 is operated at the first speed if the compressor engagement button is pressed, even if the control knob H080 is in position "0". See E6021 COMPRESSOR ENGAGEMENT |