AFMS N°D02 FOR VARIABLE PITCH PROPELLER EQUIPPED AIRPLANES
Page V7-11
4.2 ALTERNATE AIR
Alternate Air knob is located on the central pedestal; when the knob is fully pulled
outward from the instrument panel, injectors receive maximum hot air. During nor-
mal operation, the knob is set in OFF position.
4.3 DEFROST AND CABIN HEAT
Two knobs, located on the lower side of the central pedestal, allow Defrost and Cabin
Heat function. The one marked as “Defrost and Cabin Heat” allows hot air to perform
windshield defrost and partially cabin heat.
The cabin heat control knob, when fully outward, allows cabin to receive maximum hot
air. When both cabin heat and defrost and cabin heat are pulled, air is partitioned.
Fig. 7-9. CENTRAL PEDESTAL
Section 9 – Supplements
ENGINE CONTROLS
2
nd
Edition, Rev. 0
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