The valve and the air intake damper are connected by flexible rods to the levers of the control unit. The extreme right position of the upper lever corresponds to the full opening of the valve and the maximum flow of coolant through the heater core.
With a similar position of the lower lever, the outside air intake damper is fully open, which corresponds to the maximum air flow through the heater. Rotary instrument panel deflectors allow you to direct air flows to heat the windshield, front door windows and interior windows. bottom damper (air distribution cover) not connected to the heater control unit.
We open and close the damper by the lever attached to it on the left (driver's license) sides.
The airflow rate through the heater is controlled by a three-position switch. They can set one of two modes of operation of the electric fan - minimum and maximum.
Attention! It is forbidden to turn on the electric fan with the air intake damper closed and the heater tap open.