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ABAB
Validity : S / N 585 - 9999 21-40-00 (EM) Page 1 AUG 01
 
The air flow is adjusted using the "DEMISTING" knob on the control box. The demisting box is located at the top on the rear face of the firewall.
D. Control box (Figure 4)
The control box is equipped with three knobs ("DEMISTING", "CABIN TEMPERATURE" and "CABIN AIR FLOW") which make it possible to adjust the flow and temperature of the air entering the cabin, plus a button ("VENTS") which controls the opening of the L.H. NACA air intake shutter.
The knobs control the opening of the different shutters via sheathed control cables. The control box is located on the R.H. instrument panel strip.
E. Distribution hoses and diffusers (Figure 1)
Regulated air distribution is ensured by flexible, reinforced hoses.
Diffusers are installed between the rear passengers, at floor level, and behind the rear bench, at head level. A deflector is secured to the cabin air mixer outlet for the front passenger feet, and a hose is directed towards the pilot feet.
4. OPERATION
A. Air regulation (Figure 5)
The cabin air mixer is supplied with hot air coming from the heat exchanger and with cold air coming from the R.H. NACA air intake.
Regulation is obtained by moving the "CABIN TEMPERATURE" knob which simultaneously controls the cabin air mixer and the R.H. NACA air intake.
The air mixed in the cabin air mixer is distributed in the cabin to the pilot feet, the front and rear passengers feet and to the upper section of the rear bench backrest.
The diffused air flow can be adjusted using the "CABIN AIR FLOW" knob which controls a shutter at the cabin air mixer outlet, in the distribution box.
B. Control box (Figures 4 and 5)
"CABIN TEMPERATURE" knob (A) controls through al the hot air intake coming from hot air intake box (1), and through a2 and a3 the cold air intake coming from R.H. NACA air intake (3) (shutter) to cabin air mixer (2).
"DEMISTING" knob (B) controls through b the hot air intake coming from demisting box (10) to the windshield diffusers.
"CABIN AIR FLOW" knob (C) controls through c the quantity of air sent to the diffusers and the deflector. "VENTS" knob (D) controls through d the opening of the L.H. NACA air intake shutter.
ABAB
Validity : S / N 585 - 9999 21-40-00 (Em) Page 2 AUG 01
 
1 - Cabin air mixer
2 - Heat exchanger
3 - Demisting box
4 - Control box
5 - Rear passengers diffuser (head)
6 - Rear passengers diffuser (feet)
2 3 4
 
Heating - Description and operation
Figure 1
ABAB
Validity : S / N 585 - 9999 21-40-00 (EM) Page 3 SEP 04
 

 

 
  1 - Demisting box
2 - R.H. windshield diffuser
　
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