LG LRTG1813W, LRTG1813BS Owner’s Manual
SERVICING PRECAUTIONS
AIR RECHARGING IN COMPRESSOR
Test the refrigeration system connecting it electrically before
refilling operation. It is necessary to ascertain the function
of the motor-compressor and identiSj the defects
immediately. If defects have been found, empty the old
system of possible R-12(R134a) residue by breaking off the
end of the extension piece at its narrow point. (Figure 1)
Replace the filter and any damaged components. Unso]der
and pull off the piece remaining inside the service tube and
then attach an complete extension with male Hansen and
at last, solder it to the same tube again. (Figure 2)
POINT TO BEBROKEN
SERVICE TUBE EXTENSION
Figure 1
It is necessary to execute the soldenng operation w_th
valve open so that the fumes caused by oil residue can
come out freely without blowholes between two tubes
during the heating the of the point to be soldered.
The extension fitted with the male Hansen is connected to
the female fitting of the vacuum pump tube. (Figure 3)
CHARGE TUBE FEMALE
EXTENSION HANSEN
MALE HANSEN
SOLDERING POINT
Figure 2
vacuum operation is over, add the quantity in grams of
R-12(R134a) to the refrigerafion system. Remember that
every system has an exact quantity of R-12(R134a) with a
tolerance of -+5 grams that can be added. (Figure 4)
TO THE R-12(R134a) CYLINDER
L
_J TO THE REFRIGERATION
SYSTEM
_'_ _ Figure 4
Before performing this operation (if the vacuum pump and
refilling cylinder are connected), make sure that the valve
placed between the vacuum pump and the refifiingtube are
dosed in order to keep the Freon for addition to the system.
(Figure 5)
FILLING OR VALVE TO BEOPENED
CHARGE TUBE WHEN REFILLING
GAUGE
=igure 3
Air evacuating from the system begins as soon as the
pump starts. The refrigeration system must be kept under
vacuum until the reading on the lew-pressure gauge
indicates vacuum (0 absolute, -1 atm., -760 mm hg) in any
case it is advisable to keep the pump running for about 30
minutes. (Figure 3)
In case that a considerable leakage occurs it will be
necessary to stop the vacuum pump and to add aamall
quantity of Frecn to the system, if vacuum should not be
obtained (pressure gauge can't fall to 1 atmosphere), start
the refrigeration unit and find the leakage with the special
leak-finder. When the defective soldering point is visible,
re-do it after opening the extension tube valve and
reestablishing the normal outside pressure inside the
group.
Because the melted alloy is sucked into the tubes and
block them, the pressure must be rebalanced when
vacuum is in the system in soldering. As soon as the
TO THE REFRIGERATION TOTHE CHARGE
SYSTEM CYLINDER
VALVE TO BE CLOSED
AFTER VACUUM
TO THE
VACUUM _ Figure 6
PUMP
In addition, check the graduated scale on the cylinder for
the quanfity of R-12(R134a) to be added, for example, if we
have 750 grams of Freon in the cylinder and must add 140
grams to the group, this amount will be reached when
R-12(R134a) has dropped to 610 grams, remembering that
the indicator shows a lower limit of meniscus, Do this after
choosing the scale corresponding to the gas pressure
different scales reported as the same gas pressure
indicated by the pressure gauge on the top of the column.
To make R-12(Rf34a) flow into the system, open the valve
placed at the base of the cylinder and connected to the
filling tube. The amount of Freon cannot be added to the
system all at once because it may cause a blocking of motor-
compressor. Therefore, proceed by adding the original
quantity of about 20-30 grams and close the valve
immediately.
The pressure rises and the motor compressor must start
sucking the gas and lowering the pressure again. Regulate
the valve again, maintaining the same manner until
reaching to the quantity of R-12(R134a) established for the
system being charged. When the system is running, the
suction pressure must be stabilized between 0.30 to
0.6(0.10 to 0.4) atmosphere.
o3.
2000.12.6 160/120
CIRCUITDIAGRAM/SCHI_MADEMONTAGE
TIME
Temp_
10.5Se
9sec
10sec
11sec
12see
13sec
14See
15see
SWITCHON
WH:V_IITEBL:BLUE RD:RB) PK:FIN_ iWH:Bk_nc EIL:Bk_uRD:RougePI(:Ro_
BK:BI.ACI(BN:BRO_JPR:PURPLEYI.:YELLOWJBi(:Nok BN:Bnm PR:PouqxeYl.:JeaJne
BO:BRIGHTORANGE6Y:GR_Y GN:GREENi BO:C_OeCI_" GY:Gds GN:Vert 3854JDlO33H
$w1 _ S_
L--_
2. PARTS IDENTIFICATION
FREEZER
COMPARTMENT
Freezer Shelf
Automatic Ice Maker
Freezer Temperature -
and Ice Bank
(Optional)
General Type
Ice Tray (Optional) _
Control Dial
Temperature
Control Dial
Lamp
Shelves
Snack Corner
Crisper
Used tokeep fruits
and vegetables
fresh and crisp.
Lamp (Optional)
Freezer Door Bin
Door Cooling
On the refrigeratordoor,
the coldair passageway is
instaiFedto supply
coldair to the doorsideof
the refrigerator
compartment.
Can Server
Dairy Corner
Wine Rack (Optional)
Adjustable
Door Bin
Refrigerator Door
Rack
Leveling Screw
(Inside)
-5-
Base Grille
3. DISASSEMBLY
3-1 DOOR
• Freezer Door
1. Remove the hinge cover by pulling it upwards.
2. Loosen hexagonal bolts fixing the upper hinge to the
body and liftthe freezer door.
HINGE COVER
BOLT
HINGE
Figure 6
3. Pull out the door gasket to remove from the door foam
Ass'y.
GASKET
3-2 DOOR SWITCH
1.To remove the door switch, pull out itwith a '-' type
ddver as shown in (figure 9).
2. Disconnect the lead wire from the switch.
Figure 9
3-3 THERMOSTAT
1. Remove Control Box-R by loosening 2 screw fixedto
ceiling of Refrigerator compartment (Figure 10)
2. Separate the thermostat and dial knob F.
3. Remove the thermostat by disconnecting the lead wire.
Figure 7
• Refrigerator Door
1, Loosen hexagonal bolts fixing the lower hinge to the
body to remove the refrigerator door only.
LOWER HINGE
BOLT
Figure 8
2. Pull out the door gasket to remove from the door foam
Ass'y.
Figure10
-6-
3.4 FAN AND FAN MOTOR
1. Remove the freezer shelf. (If your refrigerator have an
lee Maker, disassemble the Ice maker first)
2. Remove the GdUe by pulling it out and by loosening a
screw.
3. Remove the Fan Motor Assy by loosening 4 screws and
disassemble the shroud.
4. Pull out the fan and, separate the Fan Motor. Bracket.
3-6 LAMP
FREEZER ROOM LAMP
SHROUD
FAN MOTOR
BRACKET
FAN
Figure 12
3-5 DEF' CONTROL ASSY
Def controlAssy consists of Defrost Thermostatand FUSE-M
Defrost Thermostat functions to defrost automatically and it
is attached to metal side of the Evaporator and senses
Temp.
Fuse-M is a kind of safety device for preventing over-
heating of the Heater when defrosting,
At the temperature of 77°C, it stops the emission of heat
from the Heater.
1, Pull out the Gdlle Ass_.
2. Separate the connector connected with the Def Control
Assyand replace the Def Control Assyafter cutting the
Tie Wrap. (Figure 14)
SHROUD-F
DEF-THERMO
Figure 15
3-6-1 Freezer room lamp
1. Unplug the power cord from the outlet.
2_Remove the room lamp lid by taking down while pushing
it backward with your hand after grabbing the hook of
lamp lid as shown in the figure at right.
3. Remove the lamp byturningitclockwiseandreplace new one.
4. Assemble in reverse order of disassembly.Replacement
bulb mustbe Lhesame specificelJonas original.(Max 15W)
REFRIGERATOR ROOM LAMP
Figure 16
3-6-2 Refrigerator room tamp
1. Unplug the power cord from the outlet.
2. Remove refrigerator shelves.
3. Upper Refrigerator Lamp.
Release the hooks on both ends of the ]amp shield and
pull the shield downward to remove it.
4. Turn the lamp counterclockwise.
5. Assemble in reverse order of disassembly, Replacement
bulb must be the same specification as original.
(Max 40 W)
3-7 CONTROL BOX-R
1.First, remove allshelvesin the refrigerator and Control
Box-R by loosening2 screw.
Figure 13
FUSE-M
HOLDER FUSE Figure 14
CONTROLBOX-
COVER LAMp_I_@ Figure 17
2. Remove the Control Box-R by pulling it downward,
3. Disconnect the L/wire on the dght position and seperate
timer, themostat. Lamp socket, etc.
-7-
Loading...