Description

DESCRIPTION

The assembly represented below in cross-section is the main component of the system and it comprises a duct (1) and a heater distributor unit (2).
The duct (1) is formed of two sections, a lower one and an upper one; the right hand part of the latter is suitably shaped so that it mates perfectly with the right upper part of the dashboard surface (area under the windscreen of the partition between the engine and passenger compartment) with which it is in contact.
On the upper part of the right hand side of the duct there are two rectangular apertures; the first is in an almost horizontal position and mates with the one on the dashboard, thus communicating with the outside environment, while the other, facing the passenger in an almost vertical position, allows the inlet of the air present in the passenger compartment (recirculation).
In the upper inner part of the duct there is a flap (3) which, duly directed through a slider and hose and shaft, can take any intermediate position between the closing limits of the above-mentioned two apertures.

Inside the duct, dap fitted on the lower part in correspondence with the above-mentioned apertures there is a fan (4) which, duly supplied at different voltage ratings, can turn at four different speeds.
The heater - distributor unit mainly comprises a box housing the following:

• centrally a mixing flap which, duly directed by a knob through a bowden cable, allows or prevents the entire flow of air withdrawn by the fan (4), or part of it, to flow against the finned surface of the heater radiator (5);
• at bottom centre the heater radiator (5) the inlet and outlet fittings of which protrude from the right side surface of the above-mentioned unit;
• above and at the front four ports which, duly directed by a knob through a hose and shaft, a toothed sector, a disk with grooves acting as distributor, shutter or fully close the section of the inner ducts which send the air respectively to the feet, front vents and windscreen demisting vents.

FURTHER INFORMATION ON THE DESCRIPTION OF THE COMPONENTS FORMING THE SYSTEM REMOVING/REFITTING THE LATTER IS NOT AVAILABLE AT THE TIME OF GOING TO PRESS.