LG LS-H186TNA2 / LS-H246TLM1 / LS-H246TNA2 / LS-H266TGM1 / S24LHP Service Manual ▷ View online
Service Manual 13
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 con-
veniently routed away.
Do not install near a doorway.
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.
installed as high on the wall as possible, allowing a
minimum of "B" from ceiling.
• Use a stud finder to locate studs to prevent unnec-
essary 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.
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.
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 mini-
mum.
mum.
• Select a place so that the warm air and noise from
the air conditioner do not disturb neighbors.
More than "A"
More than "B"
More than 2.3m
More than "B"
More than 10cm
More than 10cm
More
than 60cm
than 60cm
More than 60cm
More than 70cm
CAUTION:
Install the indoor unit on the wall
where the height from the floors more than 2.3
meters.
meters.
CAUTION:
•
Capacity is based on standard length and maximum
allowance length is on the basis of reliability.
allowance length is on the basis of reliability.
•
Oil trap should be installed every 5~7 meters.
Grade
Clearance(cm)
A
B
7K~28K
10
5
30K~38K
30
12
Pipe Size
Capacit
y
(Btu/h)
GAS
LIQUID
Max.
Length
A
(m)
Additional
Refrigerant
(g/m)
Max.
Elevation
B
(m)
Standard
Length
(m)
7k~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
14 Room Air Conditioner
Installation
The wall you select should be strong and solid
enough to prevent vibration
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.
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.
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.
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
Answering telephone / Normal telephone
(Not packed in the box)
Adaptor
(Not packed in
the box)
Telephone Control
Cord Wire
(Packed in the box)
Phone
Conductor
Conductor
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
SJ
90
20
80
20
SL, SK
45
40
80
20
SQ
75
12
80
12
SR
0
40
20
40
ST
105
0
210
0
CHASSIS
(Grade)
Distance (mm)
How to Fix Installation Plate
Drill a Hole in the Wall
Installation Instructions of Telephone Control(Optional)
A
B
C
D
E
SM
180
115
-
115
50
SN
180
115
195
115
-
CHASSIS
(Grade)
Distance (mm)
Service Manual 15
Installation
Flaring Work
Main cause for refrigerant leakage is due to defect in
the flaring work. Carry out correct flaring work using the
following procedure.
the flaring work. Carry out correct flaring work using the
following 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.
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
direction as you remove burrs in order to avoid
dropping burrs into the tubing.
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)
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.
• Carry out flaring work using flaring tool as shown
below.
Check
• Compare the flared work with figure below.
• If flare is noted to be defective, cut off the flared
section and re-flare it.
Copper
pipe
90
°
Slanted Uneven Rough
Bar
Copper pipe
Clamp handle
Red arrow mark
Cone
Yoke
Handle
Bar
"A"
Inclined
Inside is shiny without scratches
Smooth all round
Even length
all round
Surface
damaged
Cracked Uneven
thickness
= Improper flaring =
Pipe
Reamer
Point down
Flare nut
Copper tube
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
16 Room Air Conditioner
Installation
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.
from chassis.
• Replace the plastic tubing holder in the original
position.
For right rear piping
1. Route the indoor tubing and the drain hose in
the direction of rear right.
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
connection later.
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.
the lowest side of the bundle. Locating at the
upper side can cause drain pan to overflow
inside the unit.
If the drain hose is routed inside the
room, insulate the hose with an insula-
tion material* so that dripping from
"sweating"(condensation) will not dam-
age furniture or floors.
room, insulate the hose with an insula-
tion material* so that dripping from
"sweating"(condensation) will not dam-
age furniture or floors.
*Foamed polyethylene or equivalent is recom-
mended.
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 prop-
erly seated on the installation plate by moving it
left and right.
top of the indoor unit with the upper edge of the
installation plate.) Ensure that the hooks are prop-
erly seated on the installation plate by moving 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).
installation plate until the hooks engage into their
slots(clicking sound).
4. Connecting the pipings to the indoor unit and
drain hose to drain pipe.
• Align the center of the pipes and sufficiently tight-
en the flare nut by hand.
NOTICE
CAUTION:
When
install, make sure
that the remaining
that the remaining
parts must be removed
clearly so as not to dam-
age the piping and drain
hose, especially power
cord and connecting cable.
clearly so as not to dam-
age the piping and drain
hose, especially power
cord and connecting cable.
Tubing holder
Connecting
cable
cable
Loop
Gas side
piping
piping
Liquid side
piping
piping
Drain hose
Drain hose
Connecting
cable
Indoor unit tubing
Flare nut
Pipes
Drain hose
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