Cessna T188C - Page 276

MODEL
188
&
T188
SERIES
SERVICE
MANUAL
SECTION 14
UTILITY SYSTEMS
Page No.
TABLE
OF CONTENTS
Aerofiche/Manual
HEATING
SYSTEM
.........
.
2C/14-1
Description
..........
2C6/14-6
Description
......
.....
2C1/14-1
Operation
..
.......
2C6/14-6
Operation
.........
..
2C1/14-1
FRESH
AIR INSTALLATION
VENTILATING
SYSTEM
......
.2C1/14-1
(Beginning
with
18802746)
......
2C6/14-6
Description
..........
2C1/14-1
Description..
........
2C6/14-6
Operation
. ..........
2C1/14-1
Operation
.........
2C6/14-6
DEFOGGING
SYSTEM.
.......
.2C1/14-1
Removal,
Installation
and Repair.
2C12/14-12
Description
..........
.2C1/14-1
AUXILIARY
CABIN
AIR
Operation
.
.....
.
. .
.. 2C1/14-1
INSTALLATION
(Beginning
with
FRESH
AIR INSTALLATION
18801825)
......
......
2C12/14-12
(Beginning with
1880833) ..
. .2C1/14-1
Description.2
.........
2C12/14-12
Description
....
..
. 2C1/14-1
Operation
.
. .
...
2C12/14-12
Operation
..
..
2C1/14-1
Trouble
Shooting .....
.
2C12/14-12
FRESH
AIR
INSTALLATION
Removal,
Installation
and
Repair..
2C12/14-12
(Beginning
with
18801825)
......
2C6/14-6
14-1.
HEATING
SYSTEM.
(See figure
14-1.)
14-7.
DEFOGGING
SYSTEM.
(See figures
14-3
and
14-5.)
14-2.
DESCRIPTION.
The
heating
system
is
com-
prised of
the heat
exchange section
of the
exhaust
14-8. DESCRIPTION.
The defogging
system
is com-
muffler,
a shut-off
valve,
mounted
on the
right for-
prised
of a defroster
nozzle
mounted
immediately
ward
side of
the firewall,
a
push-pull
control
on the
forward
of the
instrument
cluster
panel,
just
aft of
instrument
panel,
outlets,
and
flexible
ducts con-
the
windshield
in
the cockpit,
and
flexible
ducts con-
necting
the
system.
necting
the
system
to the heating
and
ventilating
systems.
14-3.
HEATER
OPERATION.
Ram
air is
ducted
through
an engine
baffle
and
heat exchange
section
of
14-9.
DEFOGGING
SYSTEM
OPERATION.
Ram
air
the
exhaust
muffler,
to the
shut-off
valve
at the
fire-
is ducted
through
an
engine
baffle
and heat
exchange
wall.
The
heated
air
flows
from
the
firewall
shut-off
section
of
the
exhaust
muffler,
to a
tee
in the
aircraft
valve
into a
tee where
it
is distributed
to both
sides
heating
system,
where
a part
of the
heated
air
is rout-
of
the cockpit
area.
The
shut-off
valve,
operated
by
ed to
the defroster
nozzle
in the
cockpit.
Fresh
air
the
"CABIN
HEAT"
control,
located
on
the instru-
is ducted
from
the scoop
door
on the
underside
of the
ment
panel,
regulates
the
volume
of
heated
air enter-
left
wing
stub
to a connection
in
the ventilation
sys-
ing
the system.
Pulling
the heater
control
full
out
ter,
where
a part
of
the fresh
air is
routed
to
the
supplies
maximum
flow,
shutting
off flow
completely
defroster
nozzle
on
aircraft
serials
thru
18800985
when
the
control
is pushed
full in.
and
not modified
per
kit SK188-27.
By
the use
of
"CABIN
AIR" and the
"CABIN HEAT"
controls, the
14-4.
VENTILATING
SYSTEM.
(See
figures
14-2
temperature
and
flow
of
air
in
the defogging
system
and
14-5.)
can
be
regulated.
Beginning
with
aircraft
serial
18800986
and aircraft
modified per
kit SK188-27,
the
14-5.
DESCRIPTION.
The ventilating
system
is
defroster
air comes
directly
from the
tee to
the
comprised
of a
fresh
air scoop
door
located
on the
defroster
nozzle
and
is not
connected
to
the fresh
underside
of
the left
stub
wing on
aircraft
serials
air
duct.
Defogging
is
managed
by
the "CABIN
HEAT"
thru
18800985
and not
modified
perkit
SK188-27.
control
increasing
or decreasing
the
air fow.
Beginning
with
aircraft
serial
18800986
and
aircraft
modified
per
kit SK188-27
the
air scoop
door
is lo-
14-10.
FRESH
AIR INSTALLATION.
(Beginning
cated
on the right
hand
fuselage
forward
of the canopy.
with 18800833.)
(See figure
14-4.)
A push-pull
control
on the
right side
of the
control
panel,
an outlet
and
flexible
ducting
connecting
the
14-11.
DESCRIPTION.
The installation
Is
comprised
system.
of an
air
inlet
in the
leading
edge
of
the
vertical
fin,
a
plenum
area in
the vertical
fin, ducting,
routed
to
14-6.
VENTILATING
SYSTEM
OPERATION.
Fresh
the cockpit
area,
and a louver
assembly,
located
in a
air
from
the
scoop
door
is routed
through
ducting
to
bracket
assembly
in the
right-hand
cockpit
area,
ad-
the cockpit
area.
The
scoop
door,
operated
by the
jacent
to
the
ash
tray.
"CABIN
AIR" control,
located
on the instrument
panel,
regulates
the
volume
of
fresh
air
entering
the
14-12.
OPERATION.
Ram
air enters
the
inlet
on the
cockpit.
Pulling
the "CABIN
AIR"
control
full out
leading
edge
of the vertical
fin,
and
routes through
the
supplies
maximum
flow,
shutting
off flow
completely
plenum
area
in the
vertical
fin.
A collector
at the
bot-
when the
control
is pushed
full in.
Revision
1
14-1