LG LS-J0761CL Manual de usuario
SERVICE MANUAL
Room Air Conditioner
MODEL : LS-J0761CL / CM / CN / CD / CS
LS-J0761HL / HM / HN / HD / HS
LS-J0962CL / CM / CN / CD / CS
LS-J0962HL / HM / HN / HD / HS
LS-J0963CL / CM / CN / CD / CS
LS-J0821CL / CM / CN / CD / CS
Contents
Functions.................................................................................................................................3
Product Specifications (Cooling Only)..................................................................................5
Product Specification (Cooling & Heating)...........................................................................6
Dimensions..............................................................................................................................7
Refrigeration Cycle Diagram................................................................................................10
Wiring Diagram......................................................................................................................11
Operation Details ..................................................................................................................13
Display Function ...................................................................................................................20
Self-diagnosis Function........................................................................................................20
Installation .............................................................................................................................21
Operation ...............................................................................................................................37
Disassembly of the parts (Indoor Unit)...............................................................................39
2-way, 3-way Valve.................................................................................................................42
Cycle Troubleshooting Guide...............................................................................................49
Electronic Parts Troubleshooting Guide.............................................................................50
Electronic Control Device.....................................................................................................57
Schematic Diagram...............................................................................................................59
Exploded View & Replacement Parts List...........................................................................61
-2-
Functions
• Room temperature sensor. (THERMISTOR)
• Maintains the room temperature in accordance with the Setting Temp.
• Indoor fan is delayed for 5 sec at the starting.
• Restarting is inhibited for approx. 3 minutes.
• High, Med, Low, CHAOS
--- Lights up in operation
--- Lights up in Sleep Mode
--- Lights up in Timer Mode
--- Lights up in Defrost Mode (for Heating Model)
OUTDOOR --- Lights up in compressor operation (for Cooling Model)
• Intermittent operation of fan at low speed.
• The fan is switched to low(Cooling), med(Heating) speed.
• The unit will be stopped after 1, 2, 3, 4, 5, 6, 7 hours.
• The fan is switched to intermittent or irregular operation
•
The fan speed is automatically switched from high to low speed.
• The louver can be set at the desired position or swing
up and down automatically.
Indoor Unit
Operation ON/OFF by Remote controller
Sensing the Room Temperature
Room temperature control
Starting Current Control
Time Delay Safety Control
Indoor Fan Speed Control
Operation indication Lamps (LED)
Soft Dry Operation Mode
ƒU Both the indoor and outdoor fan
stops during defrosting.
ƒU The indoor fan stops until the
evaporator pipe temperature will be
reached at 28°C.
Sleep Mode Auto Control
Natural Air Control by CHAOS Logic
Airflow Direction Control
-3-
Defrost(Deice) control (Heating)
Hot-start Control (Heating)
-4-
Soft Dry Operation Mode.( )
Remote Controller
Operation ON/OFF
Reset
Operation Mode Selection
Temperature Setting
Timer Selection
Timer Setting
JET COOL
Timer Cancel
Sleep Operation
Airflow Direction Control
(Cooling
model only) (Heating
model only)
TEMPERATURE LOWHIGH
Cooling Operation Mode.( ) Heating Operation Mode.( )
Auto Operation Mode.( )
Fan Operation Mode
Room, Temperature Display
Setting the Time or Timer
ON OFF
SET
CANCEL
Fan Speed Selection
(Low) (Med) (High) (CHAOS)
: (High: 39°C LOW : 11°C)
Down to 18°C
Up to 30°C
Cooling
: OFF, ON, OFF ON
: Cancel Sleep Mode, Timer ON or Timer OFF
: 1, 2, 3, 4, 5, 6, 7, Off Timer
: Fan Operates without cooling or heating.
Down to 16°C
Up to 30°C
Heating
Display Function
1. Heating Model 2. Cooling Model
• Cooling, Soft Dry, Fan, Heating • Cooling, Soft Dry, Fan
• Sleep Mode • Sleep Mode
• Timer Mode • Timer Mode
• Hot-start, Defrost
Self-diagnosis Function
■Thermistor Error Indicator
• When the indoor pipe sensor or the room temperature sensor is open or is shorted, the error is indicated.
• To indicate the error, the operation LED (or the cooling LED) flashed at 3 sec interval.
• When the error is cleared, the LED stops flashing, the operation (or cooling) LED is on.
• While in appliance pause, the error is not indicated.
Operation Indicator
Timer Indicator
Sleep Timer Indicator
Defrost Indicator
-20-
Operation Indicator
Timer Indicator
Sleep Timer Indicator
Compressor on Indicator OUT
DOOR
Installation
1. Installation of indoor, Outdoor unit
-21-
More than 2.3 m
More than 5 cm
More than
5 cm More than
5 cm
More than 10 cm More than 10 cm
More than 70 cm
1) Selection of the best location
1. Indoor unit
2. Outdoor unit
• There should not be any heat source or steam
near the unit.
• There should not be any obstacles to prevent the
air circulation.
• A place where air circulation in the room will be
good.
• A place where drainage can be easily obtained.
• A place where noise prevention is taken into con-
sideration.
• Do not install the unit near the door way.
• Ensure the spaces indicated by arrows from the
wall, ceiling, fence or other obstacles.
• If an awning is built over the unit to prevent
direct sunlight or rain exposure, be careful
that heat radiation from the condenser is not
restricted.
• There should not be any animals or plants
which could be affected by hot air dis-
charged.
• Ensure the correct distance is left from the
wall, ceiling, fence, or other obstacles as indi-
cated in the diagram.
Install the indoor unit on the wall where the height
from the floor is more than 2.3 meters.
CAUTION
-22-
5-7mm
Indoor Outdoor
WALL
Right rear piping
Installation plate
Marking-off line
Thread
Weight
Type "A" screw
Left rear piping
ø70mm
ø70mm
80mm
50mm
40mm
40mm
ø70mm
ø70mm
80mm
50mm
40mm
40mm
2) Indoor Unit Installation
The mounting wall should be strong and solid enough
to protect it from the vibration.
1.Mount the installation plate on the wall with four
Type "A" screws.
(if mounting the unit on the concrete wall, consider
using anchor bolts.)
• Always mount the Installation plate horizontally by
aligning the marking-off line by means of the
thread and a level.
2. Drill the piping hole with 70mm dia. holecore
drill.
• Line according to the arrows marked on lower the
left and the right side of the Installation Plate.
The meeting point of the extended line is the cen-
ter of the hole.
• Drill the Piping hole at either the right or the left
and the hole should be slightly slanted to the out-
door side.
The lower left and right side of Installation
Plate
-23-
2. Piping and Drainage of Indoor Unit
1) Preparation of Piping
1. Cut the pipes and the cable.
• Use the accessory piping kit or the pipes pur-
chased locally.
• Measure the distance between the indoor and the
outdoor unit.
• Cut the pipes a little longer than measured dis-
tance.
• Cut the cable 1.5m longer than the length of the
pipe.
2. Remove burrs.
• Remove burrs from cut edges of pipes.
• Turn the pipe end toward down to avoid the metal
powder entering the pipe.
Caution:
If burrs are not removed, they may cause a gas leak-
age.
3. Flaring the pipes.
• Insert the flare nuts, mounted on the connection
ports of both indoor and outdoor unit, onto the
copper pipes. (When the flare nuts are removed
from the indoor unit.) Some gas may leak, as
some gas is charged to prevent the inside of the
pipe from rusting.
• Fit the copper pipe end into the Bar of flare tool
about 0~1.0mm higher.
(See illustration)
• Flare the pipe ends.
4. Tape the flaring portion to protect it from the
dust or damages.
90 Slanted Rough
Pipe cutter
Pipe
Reamer
Point down
"A"
Bar
Bar
Clamp handle Red arrow mark
Cone
Yoke
Handle
Copper pipe
Inclined Cracked Uneven
thickness
Surface
damaged
= Improper flaring =
When properly flared, the internal surface of the flare will
evenly shine and be of even thickness.
After the flare part comes into contact with the connec-
tors, carefully check the flare finish.
"A"; ø15.88 mm (5/8") ¡0~1.0 mm
ø12.7 mm (1/2") ¡0~0.5 mm
ø9.52 mm (3/8") ¡0~0.5 mm
ø6.35 mm (1/4") ¡0~0.5 mm
-24-
Installation plate
Pull
Pull
Drain hose
Indoor Outdoor
Connecting cable
Connecting
piping
Drain pipe
Indoor unit tubing Flare nut
Spanner Torque wrench
Plastic bands
Drain hose
Adhesive
Drain pipe
Insulation material
Pipings
2)
Connection of Pipings
1. Remove the installation plate
• Pull the two '∆' marked portion of bottom of the
chassis and pull the installation plate out of chas-
sis.
2. Route the drain hose and the indoor tubing.
For right rear piping
3. Insert the piping, the connecting cables and the
drain pipe through the piping hole on the wall.
4. Connect the piping and the indoor tubing, and
drain hose and drain pipe.
• Don't connect the cable to the indoor unit.
• Wrap the insulation material around the connect-
ing portion.
• Glue up the connection portion of drain hose and
drain pipe.
Pipe Size Torque
Liquid Side (1/4") 1.8kg.m
Gas Side (3/8") 4.2kg.m
Gas Side (1/2") 5.5kg.m
-25-
Taping
Conecting
cable Gas side
piping
Drain hose Liquid side
piping
Connecting
cable
Drain hose
Press the lower left and right side of the unit against
the Installation Plate until the hooks engage with their
slots (sound click).
5. Bend the tubing as shown in the figure and bind
the piping, the connecting cables and the drain
hose altogether.
• Make a small loop for easy connection later.
6. Wrap the tubing, the drain hose and the con-
necting cable with tape.
7. Indoor unit installation
• Hook the indoor unit onto the upper portion of the
installation plate. (Engage the two hooks of the
rear top of the indoor unit with the upper edge of
the installation plate.)
Ensure the hooks are properly seated on the
installation plate by moving it in left and right.
CAUTION
Take care to arrange the piping, drain hose and
cables as the feature 7 page for inserting it into the
indoor unit and mount the indoor unit on the instal-
lation plate.
CAUTION
When install, make sure that the remaining parts
must be removed clearly so as not to damage the
piping and drain hose, especially power cord and
connecting cable.
Este manual sirve para los siguientes modelos
29
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