LG DH65EL Service Manual - Page 17

Refrigerating, Cycle

Page 17 highlights

3.3 REFRIGERATING CYCLE 3.3.1 CONDENSER, EVAPORATOR AND CAPILLARY TUBE 1. Remove the insulation on the Heater/Evaporator (H/E) assembly 2. Pierce the pinch-off tube to discharge the refrigerant, using a refrigerant recovery system. 3. After discharging the refrigerant completely, remove 2 screws between the housing assembly and the H/E. (See Figure 26) 4. Lift the H/E and open the H/E around 45 degree counterclockwise carefully. 5. Unbraze each of interconnecting tubes of the evaporator and condenser carefully. 6. Remove the H/E assembly from the orifice. (See Figure 27) 7. Unbraze the capillary tube at the connections of the condenser and evaporator. (See Figure 28) 8. Remove 4 screws between the condenser and evaporator. (See Figure 28) 3.3.2 PTC OR OVERLOAD PROTECTOR (OLP) FOR RECIPROCATING COMPRESSOR (DH30/DHR-3030/DHE-3031) 1. Discharge the refrigerant by using a refrigerant Recovery System. 2. After purging the unit completely, unbraze the suction and discharge tubes at the compressor connections. 3. Remove the screw or nut which fastens the terminal cover 4. Disconnect the lead wire from the overload protector or PTC assembly. 5. Remove the overload protector(OLP) or PTC assembly. (See Figure 29) 3.3.3 ROTARY COMPRESSOR 1. Discharge the refrigerant by using a refrigerant Recovery System. 2. After purging the unit completely, unbraze the suction and discharge tubes at the compressor connections. 3. Remove the nuts and washers which fasten the compressor. (See Figure 30) 4. Remove the compressor. (See Figure 30) I 40'N, 4O' Figure 26 41t.4 .*; ,t1 Figure 27 Figure 28 Using Recipro Compressor model Figure 29 Using Rotary Compressor models -17- Figure 30

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3.3
REFRIGERATING
CYCLE
3.3.1
CONDENSER,
EVAPORATOR
AND
CAPILLARY
TUBE
1.
Remove
the
insulation
on
the
Heater/Evaporator
(H/E)
assembly
2.
Pierce
the
pinch
-off
tube
to
discharge
the
refrigerant,
using
a
refrigerant
recovery
system.
3.
After
discharging
the
refrigerant
completely,
remove
2
screws
between
the
housing
assembly
and
the
H/E.
(See
Figure
26)
4.
Lift
the
H/E
and
open
the
H/E
around
45
degree
counterclockwise
carefully.
5.
Unbraze
each
of
interconnecting
tubes
of
the
evaporator
and
condenser
carefully.
6.
Remove
the
H/E
assembly
from
the
orifice.
(See
Figure
27)
7.
Unbraze
the
capillary
tube
at
the
connections
of
the
condenser
and
evaporator.
(See
Figure
28)
8.
Remove
4
screws
between
the
condenser
and
evaporator.
(See
Figure
28)
3.3.2
PTC
OR
OVERLOAD
PROTECTOR
(OLP)
FOR
RECIPROCATING
COMPRESSOR
(DH30/DHR-3030/DHE-3031)
1.
Discharge
the
refrigerant
by
using
a
refrigerant
Recovery
System.
2.
After
purging
the
unit
completely,
unbraze
the
suction
and
discharge
tubes
at
the
compressor
connections.
3.
Remove
the
screw
or
nut
which
fastens
the
terminal
cover
4.
Disconnect
the
lead
wire
from
the
overload
protector
or
PTC
assembly.
5.
Remove
the
overload
protector(OLP)
or
PTC
assembly.
(See
Figure
29)
3.3.3
ROTARY
COMPRESSOR
1.
Discharge
the
refrigerant
by
using
a
refrigerant
Recovery
System.
2.
After
purging
the
unit
completely,
unbraze
the
suction
and
discharge
tubes
at
the
compressor
connections.
3.
Remove
the
nuts
and
washers
which
fasten
the
compressor.
(See
Figure
30)
4.
Remove
the
compressor.
(See
Figure
30)
—17-
I
40'N,
4O'
41t.4
.;
*,t1
Figure
26
Figure
27
Figure
28
Using
Recipro
Compressor
model
Figure
29
Using
Rotary
Compressor
models
Figure
30