LG LS-D2461HL Service Manual ▷ View online
• Remove three screws fixing control box and
motor.
• Remove control box assembly holding two
hooks fixing upper sides of motor.
3. To remove the Discharge Grille.
• Remove a screw on the left side of chassis.
• Pull the right side of the discharge grille out from
• Pull the right side of the discharge grille out from
the chassis first and left side carefully.
4. To remove the Evaporator.
• Unhook the tab on the left inside edge of the
chassis by pressing it outwards.
Hooks
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46
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• Slightly pull the evaporator until left tab on end-
plate is clear of the chassis.
• Lift the left side of evaporator slightly from the
chassis carefully.
• Push right carefully in order to unhook the tabs
on the right inside of the chassis and pull the
evaporator toward you.
evaporator toward you.
5. To remove the Cross-Flow Fan.
• Loosen the screw securing the cross-flow fan to
the fan motor shaft (do not remove).
• Pull the left end of the cros-flow fan with the self-
aligning bearing out the groove.
• Remove the cross-flow fan by sliding it out from
the shaft of fan motor.
6. To remove the Fan Motor.
• Pick it up from the groove. (Do not remove a
black rubber as a spacer).
2
1
1
1
2
2
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47
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2-way, 3-way Valve
2-way Valve (Liguid Side) 3-way Valve (Gas Side or Liquid Side)
Shaft position
Shaft position
Service port
Closed
Closed
Closed
(with valve cap)
(with valve cap)
(with cap)
Open
Closed
Open
(counter-clockwise)
(clockwise)
(push-pin or with
vacumm pump)
Open
Open
Closed
(with valve cap)
(with valve cap)
(with cap)
Closed
Open
Open
(clockwise)
(counter-clockwise)
(connected manifold
gauge)
Open
Open
Open
(with Vaccum pump)
Open
Open
Open
(with charging
cylinder)
Open
Open
"
Open
Open
"
Works
Shipping
Air purging
(Installation)
(Installation)
Operation
Pumping down
(Transfering)
(Transfering)
Evacuation
(Servicing)
(Servicing)
Gas charging
(Servicing)
(Servicing)
Pressure check
(Servicing)
(Servicing)
Gas releasing
(Servicing)
(Servicing)
1.
2.
3.
4.
5.
6.
Valve cap
Open position
Closed position
Closed position
Pin
Service
port
port
Service
port cap
port cap
To outdoor unit
Flare nut
To
piping
connection
piping
connection
To outdoor unit
Hexagonal wrench (4mm)
Open position
Closed position
Closed position
To
piping
connection
piping
connection
Flare nut
ƒ¡
48
ƒ¡
1. Air purging
Required tools : hexagonal wrench, adjustable
wrench, torque wrenches, wrench to
hold the joints, and gas leak
detector.
hold the joints, and gas leak
detector.
The additional gas for air purging has been charged
in the outdoor unit.
However, if the flare connections have not been done
correctly and there gas leaks, a gas cylinder and the
charge set will be needed.
in the outdoor unit.
However, if the flare connections have not been done
correctly and there gas leaks, a gas cylinder and the
charge set will be needed.
The air in the indoor unit and in the piping must be
purged. If air remains in the refrigeration pipes, it will
affect the compressor, reduce to cooling capacity, and
could lead to a malfunction.
purged. If air remains in the refrigeration pipes, it will
affect the compressor, reduce to cooling capacity, and
could lead to a malfunction.
• Procedure
(1) Recheck the piping connections.
(2) Open the valve stem of the liquid side valve
counterclockwise approximately 90°, wait 10
seconds, and then set it to closed position.
– Be sure to use a hexagonal wrench to operate
seconds, and then set it to closed position.
– Be sure to use a hexagonal wrench to operate
the valve stem.
(3) Check for gas leakage.
– Check the flare connections for gas leakage.
(4) Purge the air from the system.
– Set the liquid side valve to the open position
and remove the cap from the gas side valve’s
service port.
service port.
– Using the hexagonal wrench to press the valve
core pin, discharge for three seconds and then
wait for one minute. Repeat this three times.
wait for one minute. Repeat this three times.
(5) Use torque wrench to tighten the service port
nut to a torque of 1.8kg.cm.
(6) Set the gas side valve to the back seat.
(7) Mount the valve stem nuts to the gas side and
liquid side valves.
(8) Check for gas leakage.
– At this time, especially check for gas leakage
from the stem nuts of both valves and from the
service port nut.
service port nut.
Caution
If gas leakage are discovered in step (3) above,
take the following mesures :
take the following mesures :
If the gas leaks stop when the piping connections
are tightened further, continue working from step (4).
If the gas leaks do not stop when the connections
are retightened, repair the location of the leak,
discharge all of the gas through the service port,
and then recharge with the specified amount of
gas from a gas cylinder.
are tightened further, continue working from step (4).
If the gas leaks do not stop when the connections
are retightened, repair the location of the leak,
discharge all of the gas through the service port,
and then recharge with the specified amount of
gas from a gas cylinder.
Service port nut.
Be sure, using a torque wrench to tighten the service port nut (after using the service port), so that it prevents the
gas leakage from the refrigeration cycle.
* CAUTION : Do not leak the gas in the air during Air purging.
Be sure, using a torque wrench to tighten the service port nut (after using the service port), so that it prevents the
gas leakage from the refrigeration cycle.
* CAUTION : Do not leak the gas in the air during Air purging.
Liquid side
Outdoor unit
3-way
valve
valve
Gas side
Indoor unit
2-way
valve
valve
Open
Closed
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49
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