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Model
LB-H1860HL_CL LB-H2460HL_CL LB-G3680HL_CL
Pages
51
Size
1.64 MB
Type
PDF
Document
Service Manual
Brand
Device
Air Conditioner
File
lb-h1860hl-cl-lb-h2460hl-cl-lb-g3680hl-cl.zip
Date

LG LB-H1860HL_CL / LB-H2460HL_CL / LB-G3680HL_CL Service Manual ▷ View online

–16–
Installation of Indoor, Outdoor Unit
1. Selection of the best location
1) Indoor unit 
Select location
Install the air conditioner in the location that satis-
fies the following conditions.
• The place shall easily bear a load exceeding four
times the indoor unit’s weight.
• The place shall be able to inspect the unit as the
figure.
• The place where the unit shall be leveled.
• The place shall allow easy water drainage.(Suit-
able dimension “H” is necessary to get a slope to
drain as figure.)
• The place shall easily connect with the outdoor
unit.
• The place where the unit is not affected by an
electrical noise.
• The place where air circulation in the room will be
good .
• There should not be any heat source or steam
near the unit
2) Outdoor unit
• If an awning is built over the unit to prevent direct
sunlight or rain exposure, be careful that heat
radiation from the condenser is not restricted. 
• There should not be any animals or plants which
could be affected by hot air discharged. 
• Ensure the spaces indicated by arrows from the
wall, ceiling, fence or other obstacles.
3) Piping length and the elevation
Indoor unit
Outdoor unit
B
A
More than
30cm
More than
30cm
More than
70cm
Sunr
oof
Fence or
obstacles
H
600
600
Top view
(unit: mm)
Front view
Front
Inspection hole
(600X600)
Control box
1000
• If 18K Model is installed at a distance of 15m, 225g of
refrigerant should be added (15-7.5) x 30g = 225g
• Capacity is based on standard length and maximun
allowance length is on the basis of reliability.
• Improper refrigerant charge may result in abnormal
cycle.
18K BTU/h
30
35
45
36K BTU/h
Capacity
Gas
5/8"
5/8"
5/8"
Liquid
1/4"
1/4"
1/4"
Elevation B(m)
Length A(m)
*Additional
refrigerant
(g/m)
Pipe Size
(Diameter: Ø)
Standard
7.5
7.5
7.5
Standard
5
5
5
Max.
50
50
50
Max.
30
30
30
24K BTU/h
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
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