Textron Cessna 172R User Manual

CESSNA
MODEL
172R
SECTION
7
AIRPLANE
&
SYSTEMS
DESCRIPTION
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.
For
cabin
ventilation,
pull
the
CABIN
AIR
knob
out.
To
raise
the
air
temperature,
pull
the
CABIN
HT
knob
out
approximately
1/4
to
1/2
inch
for
a
small
amount
of
cabin
heat.
Additional
heat
is
available
by pulling
the
knob
out
farther;
maximum heat
is available
with the
CABIN
HT
knob
pulled
out
and the
CABIN
AIR
knob
pushed
full
in.
When
no
heat
is
desired
in
the
cabin,
the
CABIN
HT
knob
is
pushed
full
in.
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
just
aft of
the rudder
pedals
at
floor
level.
Windshield
defrost
air is
also
supplied
by
two
ducts
leading
from
the cabin
manifold
to
defroster
outlets
near
the
lower
edge
of
the windshield. Two
knobs
control
sliding
valves
in
either
defroster
outlet
to
permit
regulation
of
defroster airflow.
V
Separate
adjustable
ventilators
supply
additional
air;
one
near
each
upper
corner
of
the windshield
supplies
air
for
the
pilot
and
copilot,
and
two
ventilators
are
available
for
the
rear
cabin
area
to
supply
air
to
the
rear
seat
passengers.
There
are
additional!
ventilators located
in
various
positions
in
the
cockpit.
|
Revision
8
7-39
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Textron Cessna 172R Specifications

General

Brand	Textron
Model	Cessna 172R
Category	Aircrafts
Language	English