Piper Cherokee Six - Page 706

VALVE ASS'Y
PIPER
CHEROKEE
SIX
SERVICE
MANUAL
TO EVAPORATOR
CAPILLARY
COIL
FROM
RECEIVER
DEHYDRATOR
Figure
13-13.
Expansion
Valve
13-38.
EXPANSION
VALVE
INSTALLATION.
a. Install
the
expansion
valve
in the
inlet
line
of the
evaporator
core by
coupling
the
related
fittings.
(Seal
all
couplings
with
sealant
applied
to tube
flanges
only.)
Torque
fittings
per
Table
XIII-11.
b. Secure
the
capillary
coil to
the evaporator
outlet line.
c. Evacuate
and
charge
the
system.
(See
Paragraphs
13-13
and 13-14.)
Check
for leaks.
(See
Paragraph
13-9.)
d.
Replace
access
panels.
13-39.
EVAPORATOR
ASSEMBLY.
The
evaporator
assembly
consists
of
the
evaporator
core,
receiver-dehydrator,
expansion
valve,
circulating
fan
and
pressure
switch
together
with
necessary
housing
and
plumbing.
The
housing
is
fabricated
of Cycolac
type
material.
The
condensed
moisture
is dumped
overboard
through
a hose
clamped
to a
fitting
on
the bottom
of the
evaporator
housing.
13-40.
EVAPORATOR
ASSEMBLY
REMOVAL.
The
evaporator
assembly
is
located
behind
the cabin
rear
panel,
attached
to
the mounting
panel
with
12
screws
and
washers
and
a
bracket
securing
the
back
to the
mounting
panel.
a.
Remove
air
conditioning
filter
cover,
filter
and
rear
access
panels.
NOTE
Discharge
the
system
before
disassembling
any
components
for
service.
ACCESSORIES
AND
UTILITIES
Issued:
8/17/72
3H16