Functional Description

Functional Description

The vent actuators operate according to the indications supplied by the control unit in order to optimize the air flow in accordance with calculations carried out by the internal logic of the control unit itself.

The air distribution motor Q30a receives power supply and ground directly from the control unit Q21a, at connector A 2!

pins 5 and 6 respectively; the relative adjustment potentiometer is supplied by the control unit by pin 7 of connector A and is directly connected to ground. It sends the regulation signal to pin 6, connector A of control unit Q21a.

Similarly the warm and cold air mixing motor Q30b receives its power supply and ground at pins 3 and 4 of connector A; the adjustment potentiometer is supplied by pin 7 of connector A and is directly connected to ground. It sends the regulation signal to pin 2 of connector A.

The air recirculation vent control motor Q27 (of the open/closed type without regulation) receives power from pin 9 of connector A and ground from pin 10 of connector A of control unit Q21a

Components and Connectors

Automatic control check unit	Q21a A	Air recirculation vent control motor	Q27
	Q21a A	Air recirculation vent control motor	Q27
				LTB-RED· Q21c A 2	BRN· Q21a A 1
				Q27	Q27
Air distribution motor	Q30a	LTB· Q30c 5	LTB· Q21c A 5
		GRN· Q21a A 4	GRN· Q21a A 4
		ORN· Q35 3	WHI-BLU· Q21a A 2
Warm/cold air mixing motor	Q30b	LTB· Q30c 5	RED-BLK· Q3C B
		GRN-BLK· Q21c A 4	ORN· Q3C A
		BLU· Q21a A 2	Q30b
Air conditioning system group	Q36	RED-BLK· Q3C B	ORN· Q3C A
		Q36	Q36
		Q36	Q36