Bristell B23
Airplane Maintenance Manual
Chapter 21
Issue: 30-Sep-2020
Chapter 21 Page 3
Fig. 2
Removal / Installation of the Vents
Item Description
Item Description
1
Glare shield
2
Hose
3
Vent
4
Securing nut
5
Instrument panel
Installation
see Fig. 2.
▶
Insert the vent (3) into the instrument panel (5).
▶
Screw securing nut (4) on the vent (3).
▶
Plug the hose (2) into the vent (3)
▶
Install glareshield (1).
21-40
Heating
Cockpit heating is ensured by hot air from the heat exchanger (see
Fig. 3). The heat exchanger (4) is located on the muffler (5). Ambient
inlet air (3) taken by the muffler is heated in the heat exchanger and
supplied through heating flap (3) located on the firewall into the
cockpit by air hose (2). Quantity of hot air is regulated by HEATING
knob (10) on the instrument panel. Behind the firewall a mixture flap