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Model
AS-H0766KA2 AS-H0966KA2 AS-H126RKA2 LS-H0766KA2 LS-H0966KA2 LS-H126RKA2 LS-C126RKA2
Pages
63
Size
3.14 MB
Type
PDF
Document
Service Manual
Brand
Device
Air Conditioner
File
as-h0766ka2-as-h0966ka2-as-h126rka2-ls-h0766ka2-ls.zip
Date

LG AS-H0766KA2 / AS-H0966KA2 / AS-H126RKA2 / LS-H0766KA2 / LS-H0966KA2 / LS-H126RKA2 / LS-C126RKA2 Service Manual ▷ View online

Service Manual  13
Product Specifications
Model Name
Item                            Unit
Cooling Capacity
Btu/h
Heating Capacity
Moisture Removal
l
/h
Power Source
Ø, V, Hz
Air Circulation
Indoor
m
3
/min
Outdoor
Noise Level
Indoor
dB (A)±3
Outdoor
Input
Cooling
W
Heating
Running 
Cooling
A
Current
Heating
E.E.R.
Cooling
Btu/hW
C.O.P
Heating
Motor Output
Indoor
W
Outdoor
Dimensions
Indoor
mm
(W x H x D)
Outdoor
Net. Weight
Indoor
kg
Outdoor
Refrigerant (R410A)
g
Airflow Direction Control (Up & Down)
Airflow Direction Control (Left & Right)
Chaos Wind
Timer
Self Diagnosis
Remocon Type
Service Valve
Liquid
inch(mm)
Gas
Sleeping Operation
Drain Hose
Connecting Cable
Power Cord
Table-2
7000
9000
12000
12000
7300
9000
13000
-
1
1.2
1.2
1.2
1Ø,220-240V,50Hz 1Ø,220-240V,50Hz 1Ø,220-240V,50Hz 1Ø,220-240V,50Hz
5.0/5.7
5.8/6.6
8.8/9.5
8.8/9.5
20
20
22
22
35
37
40
40
49
49
52
52
700
920
1310
1310
730
850
1250
-
3.1
4.1
6.0
6.0
3.2
3.7
5.8
-
10
9.78
9.16
9.16
2.93
3.1
3.05
-
7
7
9.5
9.5
18
18
-
-
756x260x155
756x260x155
900x285x156
900x285x156
575x525x260
575x525x260
717x498x229
717x498x229
7
7
7.2
7.2
25
26
30
30
650g
690g
800g
670g
O
O
O
O
-
-
-
-
O
O
O
O
7Hr OFF
7Hr OFF
7Hr OFF
7Hr OFF
O
O
O
O
L.C.D wireless
L.C.D wireless
L.C.D wireless
L.C.D wireless
1/4"(6.35)
1/4"(6.35)
1/4"(6.35)
1/4"(6.35)
3/8"(9.52)
3/8"(9.52)
1/2"(12.7)
1/2"(12.7)
O
O
O
O
O
O
O
O
1.0mm
2
x 3, 0.75mm
2
x 2 1.0mm
2
x 3, 0.75mm
2
x 2 1.0mm
2
x 3, 0.75mm
2
x 2 1.0mm
2
x 3, 0.75mm
2
x 2
1.0mm
2
1.0mm
2
1.0mm
2
1.0mm
2
LS-H0766KA2
LS-H0966KA2
LS-H126RKA2
LS-C126RKA2
14 Room Air Conditioner
Installation
Installation
Indoor unit
• Do not have any heat or steam near the unit.
• Select a place where there are no obstacles in front of the
unit.
• Make sure that condensation drainage can be conveniently
routed away.
Do not install near a doorway.
• Ensure that the space around the left and right of the unit is
more than "A". The unit should be installed as high on the
wall as possible, allowing a minimum of "B" from ceiling.
• Use a stud finder to locate studs to prevent unnecessary
damage to the wall.
Outdoor unit
• If an awning is built over the unit to prevent direct sunlight
or rain exposure, make sure that heat radiation from the
condenser is not restricted.
• Ensure that the space around the back and sides is more
than 10cm. The front of the unit should have more than
70cm of space.
• Do not place animals and plants in the path of the warm air.
• Take the air conditioner weight into account and select a
place where noise and vibration are minimum.
• Select a place so that the warm air and noise from the air
conditioner do not disturb neighbors.
Rooftop Installations:
• If the outdoor unit is installed on a roof structure, be
sure to level the unit. Ensure the roof structure and
anchoring method are adequate for the unit location.
• Consult local codes regarding rooftop mounting.
More than "A"
More than "B"
More than 2.3m
More than "B"
• Capacity is based on standard length and maxi-
mum allowance length is on the basis of reliability. 
• Oil trap should be installed every 5~7 meters.
Grade
Clearance(cm)
A
B
5K~28K
10
5
30K~38K
30
12
Pipe Size
Capacit
y
(Btu/h)
GAS
LIQUID
Max. 
Length
(m)
Additional
Refrigerant
(g/m)
Max.
Elevation
B
(m)
Standard
Length
(m)
5k~14k
3/8"(Ø9.52)
1/4"(Ø6.35)
4 or 7.5
7
15
20
1/2"(Ø12.7)
1/4"(Ø6.35)
4 or 7.5
7
15
20
1/2"(Ø12.7)
1/4"(Ø6.35)
4 or 7.5
15
30
20
18k~28k
5/8"(Ø15.88)
1/4"(Ø6.35)
4 or 7.5
15
30
20
5/8"(Ø15.88)
3/8"(Ø9.52)
4 or 7.5
15
30
30
30k~38k
5/8"(Ø15.88)
3/8"(Ø9.52)
7.5
15
30
30
3/4"(Ø19.05)
3/8"(Ø9.52)
7.5
15
30
50
If case more than 5m
Outdoor unit
Indoor unit
A
B
Outdoor unit
Indoor unit
A
B
A
Oil trap
Outdoor unit
Indoor unit
B
I
Selection of the Best Location
Piping Length and Elevation
Install the indoor unit on the wall where the height
from the floors more than 2.3 meters.
More than 10cm
More than 10cm
More 
than 60cm
More than 60cm
More than 70cm
Service Manual  15
Installation
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 aligning
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 typi-
cally. Drilling the hole through the wall for pip-
ing connections must be done safely.
• 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.
• Open the Front Grille.
• Pass Telephone Control Cord Wire through the hole
which the power cord goes through.
• Connect Telephone Control Cord Wire to the phone jack
of telephone PCB of Control Box.
• Fix Telephone Control Cord Wire inside Control box so
as not to disconnect.
• Close the Front Grille.
Installation Plate
Type "A" screw
5-7mm
(3/16"~5/16")
Indoor
WALL
Outdoor
Installation plate
Ø70mm
Left rear piping
Right rear piping
C
D
B
A
Ø70mm
Ø70mm
Left rear piping
Right rear piping
C
E
A
B
D
Installation plate
Installation plate
A
B
C
D
S6
75
12
80
12
SR2
0
40
20
40
ST2
105
0
210
0
CHASSIS
(Grade)
Distance (mm)
How to Fix Installation Plate
Drill a Hole in the Wall
A
B
C
D
E
SM
180
115
-
115
50
SN
180
115
195
115
-
CHASSIS
(Grade)
Distance (mm)
Drain hose junction
• Remove the rubber stopple in the desired drain direc-
tion.
• Insert drain hose into the handle of drain pan, and join
drain hose and connecting hose according to the figure
by.
Only the 
desired direction
Connecting
part
Adhesive
Drain
hose
16 Room Air Conditioner
Flaring work and connection of piping
Flaring work and connection of piping
Flaring work
Flaring work
Main cause for refrigerant leakage is due to defect in the
flaring work. Carry out correct flaring work using the follow-
ing procedure.
Cut the pipes and the cable.
• Use the piping kit accessory or pipes purchased locally.
• Measure the distance between the indoor and the outdoor unit.
• Cut the pipes a little longer than the measured distance.
• Cut the cable 1.5m longer than the pipe length.
Check
• Compare the flared work with figure below.
• If flare is noted to be defective, cut off the flared sec-
tion and re-flare it.
• Preparing the indoor unit's piping and drain hose for instal-
lation 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.(Optional)
• Carry out flaring work using flaring tool as shown below.
Burr removal
• Completely remove all burrs from the cut cross section of
pipe/tube.
• Put the end of the copper tube/pipe in a downward direc-
tion as you remove burrs in order to avoid dropping burrs
into the tubing.
Putting nut on
• Remove flare nuts attached to indoor and outdoor unit,
then put them on pipe/tube having completed burr removal.
(not possible to put them on after flaring work)
Flaring work
• Firmly hold copper pipe in a die in the dimension shown in
the table above.
Copper
pipe
90
°
Slanted   Uneven  Rough
Pipe
Reamer
Point down
Flare nut
Copper tube
Bar
Copper pipe
Clamp handle
Red arrow mark
Cone
Yoke
Handle
Bar
"A"
mm
inch
mm
Ø6.35
1/4
0~0.5
Ø9.52
3/8
0~0.5
Ø12.7
1/2
0~0.5
Ø15.88
5/8
0~1.0
Ø19.05
3/4
1.0~1.3
Outside diameter
A
Inclined
Inside is shiny without scratches
Smooth all round
Even length
all round
Surface
damaged
Cracked Uneven
thickness
= Improper flaring =
Connection of piping -- Indoor
Tubing holder
When install, make sure that the
remaining parts must be removed
clearly so as not to damage the pip-
ing and drain hose, especially power
cord and connecting cable.
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