DOWNLOAD LG LB-H1860HL / LB-H1860CL / LB-H2460HL / LB-H2460CL Service Manual ↓ Size: 1.61 MB | Pages: 51 in PDF or view online for FREE

Model
LB-H1860HL LB-H1860CL LB-H2460HL LB-H2460CL
Pages
51
Size
1.61 MB
Type
PDF
Document
Service Manual
Brand
Device
Air Conditioner
File
lb-h1860hl-lb-h1860cl-lb-h2460hl-lb-h2460cl.zip
Date

LG LB-H1860HL / LB-H1860CL / LB-H2460HL / LB-H2460CL Service Manual ▷ View online

2. Indoor unit installation
Installation of Unit
Install the unit above the ceiling correctly.
• Apply a joint-canvas between the unit and duct to
absorb unnecessary vibration.
• Apply a filter Accessory at air return hole.
• Install the unit leaning to a drainage hole side as a
figure for easy water drainage.
• A place where the unit will be leveled and that can
support the weight of the unit.
• A place where the unit can withstand its vibration.
• A place where service can be easily performed.
–17–
CASE 1
POSITION OF SUSPENSION BOLT
CASE 2
POSITION OF CONSOLE BOLT
(Unit:mm)
Drainage hole
M10 Nut
M10 SP. washer 
M10 washer 
X 4
X 4
(Local
supply)
X 4
M10 Nut
M10 SP. washer 
M10 washer 
X 4
X 4
(Local
supply)
X 4
A
B
C
1-3 mm
D
(G)
H
I
E
F
NOTE:
• Throughly study the following installation locations:
1. In such places as restaurants and kitchens, considerable amount of oil steam and flour adhere to the fan, the fin of the heat
exchanger, resulting in heat exchange reduction, spraying, dispersing of water drops, etc.
In these cases, take the following actions:
• Make sure that the ventilation fan for smoke-collecting hood on a cooking table has sufficient capacity so that it draws oily
steam which should not flow into the suction of the air conditioner.
• Make enough distance from a cooking room to install the air conditioner in such a place where it may not suck in oil steam.
2. Avoid installing air conditioner in such circumstances where cutting oil mist or iron powder is in suspension in factories, etc.
3. Avoid places where inflammable gas is generated, flows in, is stored or vented.
4. Avoid places where sulfurous acid gas or corrosive gas is generated.
5. Avoid places near high frequency generators.
A
B
C
D
E
F
(G)
H
I
18K BTU/h
932
882
355
45.5
450
30
87
750 163
24K BTU/h
932
882
355
45.5
450
30
87
750 163
36K BTU/h
1232 1182 355
45.5
450
30
87
830 186
Dimension
Capacity
–18–
3. The Indoor Unit Installation
• Select and mark the position for fixing bolts.
• Drill the hole for set anchor on the face of ceiling.
• Insert the set anchor and washer onto the suspen-
sion bolts for locking the suspension bolts on the ceil-
ing.
• Mount the suspension bolts to the set anchor firmly.
• Secure the installation plates onto the suspension
bolts (adjust level roughly) using nuts, washers and
spring washers.
4. Remote Controller Installation
• Although the room temperature sensor is in the indoor unit, the remote controller should be installed
in such places away from direct sunlight and high humidity.
Installation of the remote controller
• Select places that are not splashed with water.
• Select control position after receiving customer approval.
• The room temperature sensor is built in the indoor unit.
• This remote controller equipped with liquid crystal display. If this position is higher or lower, display is difficult
to see.(The standard height is 1.2 ~ 1.5m high)
Routing of the remote controller cord
• Keep the remote controller cord away from the refrigerant piping and the drain piping.
• To protect the remote controller cord from electrical noise, place the cord at least 5cm away from other power
cables (audio equipment, television set, etc.)
• If the remote controller cord is secured to the wall, provide a trap at the top of the cord to prevent water
droplets from running.
Tighten the nut and bolt to prevent unit falling.
CAUTION
1 Set anchor
Old building
New building
2 Plate washer
3 Spring washer
4 Nut
5 Suspension
   bolts
• Local supply
➀ 
Set anchor
Plate washer 
- M10
Spring washer
- M10
Nut 
- W3/8 or M10
Suspension bolt
- W3/8 or M10
–19–
Remote control 
box body
Cord clamp
(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.
Insert the two batteries.
• Be sure that the (+) and (-) directions are correct.
• Be sure that both batteries are new.
Re-attach the cover.
• 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.
• Romove the batteries from the remote
controller if the air conditioner is not
going to be used for some long time.
HOW TO INSERT BATTERIES
5. Connecting Cables between Indoor Unit and Outdoor Unit
–20–
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
those of indoor unit respectively
36K 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.
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.
Make sure that the screws of the terminal are free from looseness.
WARNING
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
POWER
INPUT
• 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).
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).
CAUTION
20mm
GN/YL
NORMAL
CROSS-SECTIONAL
AREA 0.75mm
(18K/24K)
1.25mm
2
 (36K)
20mm
GN/YL
Capacity
18K BTU/h
24K BTU/h
36K BTU/h
1 Phase
2.5mm
2
2.5mm
2
5.5mm
2
3 Phase
-
-
2.5mm
2
NORMAL CROSS-SECTIONAL AREA
18K/24K Btu
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