DOWNLOAD LG LS-J0761NL_NM_NN / LS-J0962NL_NM_NN / LS-L1261NL_NM_NN / LS-K1860NL_NM_NN_YL / LS-K181N-1 Service Manual ↓ Size: 11.33 MB | Pages: 127 in PDF or view online for FREE

Model
LS-J0761NL_NM_NN LS-J0962NL_NM_NN LS-L1261NL_NM_NN LS-K1860NL_NM_NN_YL LS-K181N-1
Pages
127
Size
11.33 MB
Type
PDF
Document
Service Manual
Brand
Device
Air Conditioner
File
ls-j0761nl-nm-nn-ls-j0962nl-nm-nn-ls-l1261nl-nm-nn.zip
Date

LG LS-J0761NL_NM_NN / LS-J0962NL_NM_NN / LS-L1261NL_NM_NN / LS-K1860NL_NM_NN_YL / LS-K181N-1 Service Manual ▷ View online

3) How to fix installation plate
The wall you select should be strong and solid enough to prevent
vibration
1. Mount the installation plate on the wall with four
type A screws. If mounting the unit on a concrete
wall, use anchor bolts.
Mount the installation plate horizontally by align-
ing the centerline using a level.
2. Measure the wall and mark the centerline. It is also
important to use caution concerning the location
of the installation plate-routing of the wiring to
power outlets is through the walls typically. Drilling
the hole through the wall for piping connections
must be done safely.
-28-
Installation Plate
Marking-off line
Thread
Weight
Type "A" screw
Hole center
Right rear piping
Left rear piping
ø70mm
ø70mm
50mm
20mm
20mm
80mm
"D"
"C"
Right rear piping
Left rear piping
Hole center
ø70mm
7k, 9k Btu
18k Btu
5-7mm
(0.2~0.3")
Indoor
WALL
Outdoor
• Drill the piping hole with a ø70mm hole core drill.
Drill the piping hole at either the right or the left with
the hole slightly slanted to the outdoor side.
For right rear piping and left rear piping, draw a
line in the direction of the arrow marked "C". The
meeting point of the two lines is the center of the
hole.
4) Drill a hole in the wall
The position of the center of the hole.
C
C
C
C
Left holecore position
Right holecore position
A,B
A,B,C
C
D
D
A,B,D
C
A
B,D
C
ø70mm
Left rear piping
Right rear piping
Hole Center
Installation plate
12k Btu
-29-
2. Flaring work and connection of piping
1) Flaring work
Main cause for gas leakage is due to defect in flar-
ing work. Carry out correct flaring work in the fol-
lowing procedure.
1. Cut the pipes and the cable.
Use the piping kit accessory 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 pipe length.
2. Burrs removal
Completely remove all burrs from the cut cross
section of pipe/tube.
Put the end of the copper tube/pipe in a down-
ward direction as you remove burrs in order to
avoid dropping burrs into the tubing.
3. Putting nut on
Remove flare nuts attached to indoor and outdoor
unit, then put them on pipe/tube having complet-
ed burr removal.
(not possible to put them on after flaring work)
Copper
pipe
90
°
Slanted   Uneven  Rough
Bar
Copper pipe
Clamp handle
Red arrow mark
Cone
Yoke
Handle
Bar
"A"
Pipe
Reamer
Point down
4. Flaring work
Carry out flaring work using flaring tool as shown
below.
Firmly hold copper pipe in a die in the dimension
shown in the table above.
5. Check
Compare the flared work with figure below.
If flare is noted to be defective, cut off the flared
section and do flaring work again.
Flare nut
Copper tube
Inclined
Inside is shiny without scratches
Smooth all round
Even length
all round
Surface
damaged
Cracked Uneven
thickness
= Improper flaring =
Outside diameter
A
mm
mm
inch
1/4
3/8
1/2
ø6.35
ø9.52
ø12.7
0~0.5
0~0.5
0~0.5
Functions
• Room temperature sensor. (Thermistor)
• Pipe temperature sensor. (Thermistor)
• Maintain the room temperature in accordance with the Setting Temp. 
• Indoor fan is delayed for 5 sec at the starting.
• Restarting is for approx. 2 minutes.
• Super High, High, Med, Low
--- Lights up in operation
--- Lights up in Sleep Mode
--- Lights up in Timer Mode
--- Lights up in Defrost Mode (for Heating Model)
• Intermittent operation of fan at low speed.
• The fan is switched to low(Cooling), low(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 the Current Control
Time Delay Safety Control
Indoor Fan Speed Control
Operation indication Lamps (LED)
Soft Dry Operation Mode
• Both the indoor and outdoor fan  stops
during defrosting.
• The indoor fan stops until the 
evaporator pipe temperature will be
reached at 30°C.
Sleep Mode Auto Control
Natural Air Control by CHAOS Logic
Airflow Direction Control
-3-
Defrost(Deice) control (Heating)
Hot-start Control (Heating)
-30-
2) Connection of piping-Indoor
Preparing the indoor unit's piping and drain hose
for installation through the wall.
Remove the plastic tubing retainer(see illustration
below) and pull the tubing and drain hose away
from chassis.
Replace the plastic tubing holder in the original
position.
1. Route the indoor tubing and the drain hose in the
direction of rear left.
2. Insert the connecting cable into the indoor unit
from the outdoor unit through the piping hole.
Do not connect the cable to the indoor unit.
Make a small loop with the cable for easy con-
nection later.
4. 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 that the hooks are
properly seated on the installation plate by mov-
ing it left and right.
Press the lower left and right sides of the unit against the
installation plate until the hooks engage into their
slots(clicking sound).
3. Tape the tubing, drain hose and the connecting
cable. Be sure that the drain hose is located at the
lowest side of the bundle. Locating at the upper
side can cause drain pan to overflow inside the
unit.
5. Connecting the pipings to the indoor unit and
drain hose to drain pipe.
Align the center of the pipings and sufficiently
tighten the flare nut by hand.
NOTE: If the drain hose is routed inside the room, insulate the
hose with an insulation materialso that dripping from
"sweating"(condensation) will not damage furniture or
floors.
*Foamed polyethylene or equivalent is recommended.
To remove the holder,
press the bottom of
chassis near the holder
upward and pull the tab
out of its hole.
Tubing holder
Pull
Press
2
1
Connecting
cable
Loop
Gas side
piping
Liquid side
piping
Drain hose
Drain hose
Connecting
cable
Drain hose
Indoor unit tubing
Flare nut
Pipings
For left rear piping
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.
Page of 127
Display

Click on the first or last page to see other LS-J0761NL_NM_NN / LS-J0962NL_NM_NN / LS-L1261NL_NM_NN / LS-K1860NL_NM_NN_YL / LS-K181N-1 service manuals if exist.