Mitsubishi Eclipse Workshop Manual page 719

HEATER,
AIR coNDlnoNER
AND vENTll-ATloN -
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REFRIGERANT
LEAK
REPAIR
PROCEDURE
LOST
CHARGE
lf
the system has lost all
charge due
to a
leak:
(1)
Evacuate
the system. (See procedure.)
(2) Charge the
system
with
approximately
one
pound of
refrigerant.
(3) Check for
leaks.
(4) Dscharge
the
system.
(5)
Repair
leaks.
(6)
Replace receiver drier.
Caution
Replacement
fiher-drier units must bc
scafcd
while
In
storage. The drier used
in
thesc units
wilf nturetc
water quickly upon exposure to the atmosphcrc. Wlren
installing
a drier, have all tools
and supplies rcady
lor
quick reassembly
to
avoid keeping the
systcm
opcrr
any longer than
necessary.
(7)
Evacuate and charge
the
system.
LOW
CHARGE
lf the system has not lost all of its
refrigerant charge; locate
and repair all leaks.
lf it
is
necessary
to
increase
the
system
pressure to find the leak (because of an especially low charge)
add
of
refrigerant.
lf it
is possible
to
repair
the
leak without
discharging
the
refrigerant system, use
the
procedure for
correcting
low
refrigerant
level.
HANDLING TUBING AND
FITTINGS
Kinks in
the refrigerant tubing or sharp bends in the refrigerant
hose lines
will
greatly reduce the
capacity
of the
entire
system. High pressures are produced
in
the system when it is
operating. Extreme care must be exercised
to
make sure
that
all connections are pressure tight.
Dirt and moistÜre can ähter
the system when
it
is
opened
for
repair
or
replacement of
lines
or
components. The following precautions must
be
observed. The system must be completely discharged before
opening any
fitting of
connection in the refrigeration system.
Open fittings with
caution even after the system has
been
discharged.
lf
any pressure is noticed
as a
fitting is
loosened.
allow trapped pressure
to
bleed
off
very
slowly.
Never attempt
to
rebend formed lines
to fit.
Use
the correct
line
for the installation you are
servicing"
A good rule for the flexible hose lines is keep the radius of
all
bendsat|east10timesthediameterofthehose.
Sharper bends
will
reduce
the.flow of refrigerant. The flexible
hose lines should be routed so that they are at least 80 mm (3
in.J
froin
the'öxh'aust
manifold.lt is'$ood practice to
inipect
all
flexible hose lines at least oäcd
a
yearto
make sure they are in
good condition and properly
routed.
.
*,o-
Unified plumbing connections with O-rings. These,O-rings
are
not
reusable.
@
Mitsubishi
Motors
Corporation
Apr.
1991 PWUEgo|0
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