LG LB-D1861 / LB-D2461 / LB-F3061 / LB-F3661 / LB-F3681 / LB-F4261 / LB-E4881 / LB-E6081 / LB-E6084_HL_CL_HP_CP Service Manual ▷ View online
–25–
Remote control
box body
Cord clamp
(accessory)
(accessory)
Lever carefully
the box open
using a screw
driver, etc.
Front case
The lo
wer par
t
Face of wall
Under plate
Screw (accessory)
Remove the battery cover from the remote con-
troller.
• Slide the cover according to the arrow direction.
troller.
• Slide the cover according to the arrow direction.
Insert the two batteries.
• Be sure that the (+) and (-) directions are correct.
• Be sure that both batteries are new.
• Be sure that the (+) and (-) directions are correct.
• Be sure that both batteries are new.
Re-attach the cover.
• Slide it back into position.
• Slide it back into position.
• Fix the under plate on the wall
• Separate the under plate from Remote control box.
• Fix the cord clamps on the wall by ø 3 tapping
screws (accessory).
• Fix the remote control cord.
WIRED REMOTE CONTROL INSTALLATION
REMOTE CONTROL PREPARATION(OPTIONAL)
DISASSEMBLING
ELECTRICAL WIRING
HOW TO MOUNT ONTO A WALL
HOW TO INSERT BATTERIES
Wire and make sure that teminal
numbers are matched on unit side and
remote controller side.
The maximum length of the cord is 100m.
If the length of the cord exceeds 50m,
use a wire size greater than 0.5mm
2
.
Remote controller
(Main board)
CN REMO
• Do not use rechargeable batteries,
such batteries differ from standard dry
cells in shape, dimensions, and per-
formance.
cells in shape, dimensions, and per-
formance.
• Romove the batteries from the remote
controller if the air conditioner is not
going to be used for some long time.
going to be used for some long time.
HOW TO INSERT BATTERIES
5. Connecting Cables between Indoor Unit and Outdoor Unit
–26–
1) Connecting cables to the Indoor Unit
Connect the wires to the terminals on the control board individually according to the
outdoor unit connection.
• Ensure that the color of the wires of outdoor unit and the terminal No. are the same as
outdoor unit connection.
• Ensure that the color of the wires of outdoor unit and the terminal No. are the same as
those of indoor unit respectively
36K/42K/48K/60K Btu
18K/24K Btu
2) Clamping of cables
1) Arrange 2 power cables on the control panel.
2) First, fasten the steel clamp with a screw to the inner boss of control panel.
3) For the cooling model, fix the other side of the clamp with a screw strongly.
2) First, fasten the steel clamp with a screw to the inner boss of control panel.
3) For the cooling model, fix the other side of the clamp with a screw strongly.
For the heat pump model, put the 0.75mm
2
cable(thinner cable) on the clamp and tighten it
with a plastic clamp to the other boss of the control panel.
4) In Australia, the length of power supply cord measured from the entry of the power supply
cord to the middle of live pin on the power plug should be over 1.8m.
POWER INPUT
• Cooling & Heating type
• Cooling only type
(380-415V3N~)
(220-240V~)
Terminals on the indoor unit
1
2
4
5
3
Terminals on the outdoor unit
1
2
4
5
3
POWER
INPUT
INPUT
POWER
INPUT
INPUT
Terminals on the indoor unit
1
2
4
5
3
Terminals on the outdoor unit
1
2
3
• Cooling only type
• Cooling only type
Terminals on the indoor unit
1(L) 2(N)
4(N) 5
3(L)
Terminals on the outdoor unit
4(N)
5
6
3(L)
1(L) 2(N)
4(N)
5
6
7
8
3(L)
4(N)
5
6
7
3(L)
Terminals on the indoor unit
1
2
4
5
3
• Cooling & Heating type
Terminals on the indoor unit
Terminals on the outdoor unit
Terminals on the outdoor unit
1
2
4
5
3
1(L)
2(N)
POWER INPUT
R
S
T
N
The power cord connected to the outdoor unit should be
complied with the following specifications (Rubber
insulation, type H05RN-F approved by HAR or SAA).
complied with the following specifications (Rubber
insulation, type H05RN-F approved by HAR or SAA).
If the supply cord is damaged, it must be replaced by a special cord or assembly availible from the manufacturer of its service agent.
The connecting cable connected to the indoor and outdoor
unit should be complied with the following specifications
(Rubber insulation, type H05RN-F approved by HAR or SAA).
unit should be complied with the following specifications
(Rubber insulation, type H05RN-F approved by HAR or SAA).
CAUTION
20m
m
GN
/YL
NORMAL
CROSS-SECTIONAL
AREA 0.75mm
CROSS-SECTIONAL
AREA 0.75mm
2
(18K/24K)
1.25mm
2
(30K/36K/42K/48K/60K)
20m
m
GN
/YL
NORMAL CROSS-SECTIONAL AREA
• Cooling only type
• Cooling & Heating type
POWER
INPUT
INPUT
Terminals on the indoor unit
1
2
3
5
6
4
Terminals on the outdoor unit
4(N)
5
6
7
3(L)
POWER
INPUT
INPUT
Terminals on the indoor unit
1
2
3
5
6
4
Terminals on the outdoor unit
4(N)
5
6
7
3(L)
Capacity
18K BTU/h
24K BTU/h
30K BTU/h
36K BTU/h
42K BTU/h
48K BTU/h
60K BTU/h
24K BTU/h
30K BTU/h
36K BTU/h
42K BTU/h
48K BTU/h
60K BTU/h
1 Phase
2.5mm
2
2.5mm
2
3.3mm
2
5.5mm
2
8.5mm
2
–
–
–
3 Phase
-
-
-
-
-
2.5mm
2
-
3.5mm
2
3.5mm
2
Make sure that the screws of the terminal are free from looseness.
WARNING
60K Btu(LB-E6082CL)
30K Btu
–27–
Outdoor
Indoor
Control terminal board
Control box
Control box cover
(On which the Electric
Wiring Connection is put)
Main terminal board
Control terminal board
Cord
clamper
clamper
Cover control
A
A
view
Remote
control cord
control cord
Connection
cord between
the indoor unit
and the
outdoor unit
cord between
the indoor unit
and the
outdoor unit
Cord clamper
1
1
Main
power source
Switch box
Circuit Breaker
ELECTRICAL WIRING
Perform the electrical wiring work according to the electrical
wiring connection.
wiring connection.
• All wiring must comply with local requirements.
• Select a power source that is capable of supply-
• Select a power source that is capable of supply-
ing the current required by the air conditioner.
• Use a recognized circuit breaker between the
power source and the unit. A disconnection
device to adequately disconnect all supply lines
must be fitted.
device to adequately disconnect all supply lines
must be fitted.
• Capacity of circuit breaker
INDOOR UNIT
• Remove the control box cover for elec-
trical connection between the indoor
and outdoor unit.(Remove two screws
and outdoor unit.(Remove two screws
➀
.)
• Use the cord clamper to fix the cord.
WIRING CONNECTION
OUTDOOR UNIT
• Remove the control cover for wiring con-
nection.
• Use the cord clamper to fix the cord.
• Earthing work
• Earthing work
Connect the cable of diameter 1.6mm
2
or more to the earthing terminal provid-
ed in the control box and do earthing.
ed in the control box and do earthing.
Please check !!
Capacity
1 Phase
3 Phase
18K BTU/h
20A
-
24K BTU/h
25A
-
30K BTU/h
25A
-
36K BTU/h
35A
25A
42K BTU/h
40A
-
48K BTU/h
-
25A
60K BTU/h
-
25A
–28–
Copper
tube
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"
Inclined
Inside is shining without scratches.
Smooth all round
Even length
all round
Surface
damaged
Cracked Uneven
thickness
= Improper flaring =
• Preparation of Piping
6. Connecting Pipes to the Indoor Unit
Main cause of gas leakage is defect in flaring work. Carry out correct flaring work in the following procedure.
1) Cut the pipes and the cable.
■
Use the accessory piping kit or the pipes purchased
locally.
locally.
■
Measure the distance between the indoor and the out-
door unit.
door unit.
■
Cut the pipes a little longer than measured distance.
■
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.
of pipe/tube.
■
Put the end of the copper tube/pipe to downward direc-
tion as you remove burrs in order to avoid to let burrs
drop in the tubing.
tion as you remove burrs in order to avoid to let burrs
drop in the tubing.
3) Putting nut on
■
Remove flare nuts attached to indoor and outdoor units,
than put them on pipe/tube having completed burr
removal.
(Not possible to put them on after flaring work)
than put them on pipe/tube having completed burr
removal.
(Not possible to put them on after flaring work)
4) Flaring work
■
Carry out flaring work using flaring tool as shown below.
Firmly hold copper tube in a bar(or die) as indicated
dimension in the table above.
dimension 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.
and do flaring work again.
Outside Diameter
" A "
Gas
Liquid
Gas
Liquid
18K BTU/h
5/8"
1/4"
0.8~1.0
0~0.5
24K BTU/h
5/8"
1/4"
0.8~1.0
0~0.5
30K BTU/h
5/8"
3/8"
0.8~1.0 0.5~0.8
36K BTU/h
5/8"
3/8"
0.8~1.0 0.5~0.8
42K BTU/h
3/4"
3/8"
1.0~1.3 0.5~0.8
48K BTU/h
3/4"
3/8"
1.0~1.3 0.5~0.8
60K BTU/h
3/4"
1/2"
1.0~1.3 0.5~0.8
Capacity
Click on the first or last page to see other LB-D1861 / LB-D2461 / LB-F3061 / LB-F3661 / LB-F3681 / LB-F4261 / LB-E4881 / LB-E6081 / LB-E6084_HL_CL_HP_CP service manuals if exist.