EMERGENCY
PROCEDURES
Before Ionding
(1)
Instrument
Panel
Switch
-
EMER.
(2)
If
time:permits
monitor
121.5
MHz
for
signal
After Londing
(1)
Test
and Emergency Switch
(tocated
in
dorsal fin) - ON.
After
Rescue
(1)
Disarm Switch
(located
in dorsal
fin)
- Of'f,
AIR CONDITlONING
SYSTEM
The
air
conditioning system consists
of a bett
driven rotary
r,
;-r'le
com-
pressor
located in the right-hand nacelle, The system is engagerl
by a
magnetic
clutch on
the compressor.
A
by-pass valve is used to unload
the
compressor
when
less
cooling
is
called
for.
The system
incorporates
two evaporators,
one
just
forward of
the
pilot
and
the
other
just
aft of
the
aft cabin bulkhead on the left-hand
side
of
the
aircraft.
Each
evaporator
has
a
blower. The forward evaporator blower
supplies refrigerated
air
through the
forward
cabin air outlets and the de-
froster
outlets.
The
aft evaporator
blower
supplies
refrigerated
air
to
the
passengers
via
a
centrellly
located
overhead
air chamber.
The system control
panel
is located on
the
instrument
panel,
ard
con-
sists of two switches, a
rheostat and
a
push-pull
control
The system
switch
placarded
COOL-OFF-CIRCULATE,
controls
the
mode of
opera-
tion
The
blower switch
ptacarded
HIGH-LOW controls blower speed,
the
blowers
operate whenever
the system switch is in either the COOL or
CIRCULATE mode.
The
temperature
control rheostat
placarded
COOLER
controls the
temperature of the refrigerated
air,
clockwise
rotation of the
control lowers
the air temperature.
The
push-pulI
control
placarded
PULL FOR A/C PUSH FOR HEAT
controls the
flow
of
refrigerated
or
heated air
into the
forward
cabin
air
and defroster outlets.
1-74
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