Cabin Heating, Ventilating And Defrosting System - Cessna 1980 182Q Pilot's Operating Handbook And Flight Manual

CESSNA
MODEL 182Q
SECTION 7
AIRPLANE
&
SYSTEMS DESCRIPTIONS
used for illuminating approach plates or other charts when using a control
wheel mounted approach plate holder. The switch is labeled MAP LIGHT,
ON, OFF and light intensity is controlled by the knob labeled FLOOD, on
the left dimming rheostat. The pilot's control wheel map light
(if
installed)
illuminates the lower portion of the cabin in front of the pilot, and is used
for checking maps and other flight data during night operation. The light is
utilized by turning the NA V light switch to the ON position and adjusting
light intensity with the rheostat control knob on the bottom of the control
wheel.
The airplane is equipped with a dome light aft of the overhead console.
The light is operated by a slide-type switch, aft of the light lens, which
turns the light on when moved to the right.
The most probable cause of a light failure is a burned out bulb;
however, in the event any of the lighting systems fail t.o illuminate when
turned on, check the appropriate circuit breaker. If the circuit breaker has
opened (white button popped out), 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.
CABIN HEATING, VENTILATING AND
DEFROSTING SYSTEM
The temper:ature and volume of airflow into the cabin can be regulated
by manipulation of the push-pull CABIN HEAT and CABIN AIR control
knobs (see figure 7-8). Both control knobs are the double button type with
locks to permit intermediate settings.
NOTE
For improved partial heating on mild days, pull out the
CABIN AIR knob slightly when the CABIN HEAT knob is
out. This action increases the airflow through the system,
increaSing efficiency, and blends cool outside air with the
exhaust manifold heated air, thus eliminating the possibil-
ity of overheating the system ducting.
Front cabin heat and ventilating air is supplied by outlet holes spaced
across a cabin manifold just forward of the pilot's and copilot's feet. Rear
cabin heat and air is supplied by two ducts from the manifold, one
extending down each side of the cabin to an outlet at the front door post at
floor level. Windshield defrost air is also supplied by a duct leading from
1 October 1979 7-31