1111111
•••••
1
PRESSURIZATION
SYSTEM
OPERATION
(COm)
2.
AUTO-MAN
Switch
- AUTO.
:E~
The pressurization system cannot
be
reset
to automatic
mode
tmtil
the
CAB
ALT
light
is extinguished.
3.
EMER
PRESS
Switches
-
NORMAL.
CABIN
TEMPERATuRE
CONTROL
Cabin
air
is
provided by
cooling
engine
bleed
air
in
a ram air heat exchang-
er.
Primary heating
and
cooling
is obtained by controlling the amount of
warm
air
that·goes
through
the heat exchanger.
BLEED
AIR
HEA11NG
AND
COOLING
• Aircraft 35-067 thru 35-112 except 35-107,36-018 thru 36-031:
1.
BLEED
AIR
Switches - On.
2.
CABIN
AIR
Switch
-
NORM.
I
I
~
Do not select
MAX
position of
CABIN
AIR
switch
CAUTION,
while
on the ground.
Do
not
perform extended engine
operation above
IDLE
With
CABIN
AIR
switch
NORM.
With
the aircraft static there is no ram
airflow
through
the
heat exchanger
and
possible damage to air condi-
tioning components
could
result.
Cabin overheating and
damage to cabin components may also
occur.
3.
MAN-AUTO-HOT
Knob
- Rotate out of
MAN
detent to
AUTO
and
turn
to desired temperature.
In
flight,
the cabin temperature
control system
will
automatically maintain
the
cabin at the
desiJed
temperature.
4.
If
satisfactory cabin temperature is not maintained:
a. MAN-AUTO-HOT Knob - Rotate to
MAN
detent.
b.
MAN-HOT -COlD Switch - HOT or COLD
until
desired
set-
ting is reached.
• Aircraft 35-107,35-113 & Subsequent and 36-032 & Subsequent:
1.
BLEED
AIR
Switches - ON.
2.
CAB
AIR
Switch
-
ON.
With
the aircraft sitting
statically
on the ground,
do
not
perform extended engine operation above
IDLE
with
CAB
AIR
switch ON. There is
no
ram
airflow
through
the
heat
exchanger
and
possible damage to air condi-
tioning components
may
occur.
FAA
APPROVED
4-30-76
REISSUED
2-25-81,
CHANGE
10
2-47
I
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