Cabin Heating, Ventilating And Defrosting System - Cessna 182T 2001 Pilot Operating Handbook

SECTION 7
AIRPLANE & SYSTEMS DESCRIPTION
Panel lighting is accomplished using individual lights mounted in
each instrument and gauge. These lights are wired in parallel and
are controlled by the PANEL LT dimmer, located below the nav
indicators. Rotating the dimmer clockwise increases light intensity,
and rotating the dimmer counterclockwise decreases light intensity.
Back lighting intensity for the radios and instrument lighting for the
RH nav indicators, in the pilot's panel, is controlled by the TST
(TEST) - BRT (DAY) - DIM (NIGHT) switch. When the switch is in
the BRT (DAY) position, this lighting may be off regardless of the
RADIO LT dimmer position.
Pilot control wheel map lighting is accomplished by use of a
rheostat and light assembly, located underneath the pilot control
wheel. The light provides downward illumination from the bottom of
the control wheel to the pilot's lap area. To operate the light, first
turn on the NAV light switch, then adjust the map light intensity with
the knurled rheostat knob. Rotating the dimmer clockwise increases
light intensity, and rotating the dimmer counterclockwise decreases
light intensity.
Regardless of the light system in question, the most probable
cause of a light failure is a burned out bulb. However, in the event
any of the lighting systems fail to illuminate when turned on, check
the appropriate circuit breaker. If the circuit breaker has opened,
and there is no obvious indication of a short circuit (smoke or odor),
turn off the light switch of the affected lights, reset the breaker, and
turn the switch on again. If the breaker opens again, do not reset it
until maintenance has been performed.
CABIN HEATING, VENTILATING AND
DEFROSTING SYSTEM
The temperature and volume of airflow into the cabin can be
regulated by manipulation of the push-pull CABIN HT and CABIN
AIR controls (Refer to Figure 7-8). Both controls are the double-
button locking-type and permit intermediate settings.
7-42
CESSNA
MODEL 182T
Apr 30/01