LG LMNC182BHA0 User manual

P/NO : 3828A20567R
www.lg.com
INSTALLATION MANUAL
AIR CONDITIONER
• Please read this installation manual completely before installing the product.
• Installation work must be performed in accordance with the national wiring
standards by authorized personnel only.
• Please retain this installation manual for future reference after reading it
thoroughly.
TYPE : MULTI
ENGLISH ESPAÑOL PORTUGUÊS

2Air Conditioner
Air Conditioner Installation Manual
TABLE OF CONTENTS
Installation Requirements Required Tools
Installation Parts Provided.........................................3
Safety Precautions......................................................4
Installation of indoor, outdoor unit .....................7~28
Flaring Work and Connection of Piping ...........29~31
Connecting the Cable between Indoor Unit and
Outdoor Unit........................................................32~33
Checking the Drainage, Forming the Pipings and
Long Pipe Setting................................................34~35
Air Purging and Evacuation...............................36~37
Test Running..............................................................38
Optional Operation - Duct Types.......................39~42
Combination indoor units ........................................43
Installation guide at the seaside..............................44
oLevel gauge
oScrew driver
oElectric drill
oHole core drill (ø50mm)
oHorizontal meter
oFlaring tool set
oSpecified torque wrenches
1.8kg.m, 4.2kg.m, 5.5kg.m, 6.6kg.m
(different depending on model No.)
oSpanner .................Half union
oA glass of water
oScrew driver
oHexagonal wrench(4mm)
oGas-leak detector
oVacuum pump
oGauge manifold
oOwner's manual
oThermometer
oHolder Remote Control

Installation Parts Provided
Installation Manual 3
ENGLISH
Installation Parts Provided
Outdoor Unit
Wall Mounted Type
Installation plate
Type "B" screws (2EA) Type "A" screw (8 EA)
Holder Remote Control
more than
700
more than
300
more than
300
Air Outlet
Air Intake
(side, rear)
Connection pipe
Drain hose
Connecting wire
Control cover
more than
300
(unit : mm)

4Air Conditioner
Safety Precautions
To prevent injury to the user or other people and property damage, the following instructions
must be followed.
nIncorrect operation due to ignoring instruction will cause harm or damage. The seriousness
is classified by the following indications.
nMeanings of symbols used in this manual are as shown below.
WARNING
CAUTION
This symbol indicates the possibility of death or serious injury.
This symbol indicates the possibility of injury or damage.
Be sure not to do.
Be sure to follow the instruction.
Safety Precautions
WARNING
nInstallation
Install the panel and the cover of
control box securely.
• There is risk of fire or
electric shock.
Always install a dedicated
circuit and breaker.
• Improper wiring or
installation may cause fire or
electric shock
Use the correctly rated breaker
or fuse.
• There is risk of fire or
electric shock.
Do not use a defective or
underrated circuit breaker. Use
this appliance on a dedicated
circuit.
• There is risk of fire or
electric shock.
For electrical work, contact the
dealer, seller, a qualified
electrician, or an Authorized
Service Center.
• Do not disassemble or repair
the product. There is risk of
fire or electric shock.
Always ground the product.
• There is risk of fire or
electric shock.

ENGLISH
Installation Manual 5
Safety Precautions
Do not modify or extend the power cable.
• There is risk of fire or electric shock.
Be cautious when unpacking and installing the
product.
• Sharp edges could cause injury. Be especially
careful of the case edges and the fins on the
condenser and evaporator.
For installation, always contact the dealer or an
Authorized Service Center.
• There is risk of fire, electric shock, explosion,
or injury.
Do not install the product on a defective
installation stand.
• It may cause injury, accident,
or damage to the product.
Be sure the installation area does not
deteriorate with age.
• If the base collapses, the air conditioner could fall with
it, causing property damage, product failure, and
personal injury.
Do not let the air conditioner run for a long time when
the humidity is very high and a door or a window is
left open.
• Moisture may condense and wet or damage
furniture.
Do not store or use flammable gas or combustibles near the product.
• There is risk of fire or failure of product.
Use a vacuum pump or Inert (nitrogen) gas when
doing leakage test or air purge. Do not compress air
or Oxygen and Do not use Flammable gases.
Otherwise, it may cause fire or explosion.
• There is the risk of death, injury, fire or
explosion.
nOperation

6Air Conditioner
Safety Precautions
Always check for gas (refrigerant) leakage after
installation or repair of product.
• Low refrigerant levels may cause failure of
product.
Install the drain hose to ensure that water is
drained away properly.
• A bad connection may cause water leakage.
Keep level even when installing the product.
• To avoid vibration or water leakage.
Do not install the product where the noise or hot air
from the outdoor unit could damage the
neighborhoods.
• It may cause a problem for your neighbors.
Don't let people to lift and transport the
product. (Use fork lift)
• Avoid personal injury.
Do not install the product where it will be
exposed to sea wind (salt spray) directly.
• It may cause corrosion on the product.
Corrosion, particularly on the condenser and
evaporator fins, could cause product
malfunction or inefficient operation.
CAUTION
nInstallation

Installation Manual 7
ENGLISH
Installation of Indoor, Outdoor Unit
Installation of Indoor, Outdoor Unit
Selection of the best location
1) Indoor unit
Select location
Install the air conditioner in the location that satisfies the
following conditions.
• The place shall easily bear a load exceeding four times the
indoor unitʼs weight.
• The place shall be able to inspect the unit as the figure.
• The place where the unit shall beleveled.
• The place shall allow easy water drainage.(Suitable 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
• 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 the spaces indicated by arrows from the wall, ceiling,
fence or other obstacles.
• Use a stud finder to locate studs to prevent unnecessary
damage to the wall.
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.
H
600600
Top view
(unit: mm)
Front view
Front
Inspection hole
(600X600)
Control box
1000
More than 200
More than
100
More than 2300
More than
100
More than 200
More than
100
More than 2300
More than
100
more than
700
more than
30cm
more than
300
more than
300
(unit : mm)
(unit : mm)

8Air Conditioner
Installation of Indoor, Outdoor Unit
Multi Piping Type
If the number of indoor unit is below 4 in case of L4UC(H)602FA2, tighten
the valves of outdoor not connected to a indoor unit with a cap and close
the valve of outdoor not connected to a indoor unit with a service valve
wrench.
Piping length and elevation
CAUTION: Capacity is based on standard length and maximum allowance
length is on the basis of reliability. Oil trap should be installed every 5~7
meters.
It does not matter which unit is higher.
1.1 The maximun allowable level, piping length and Refrigerant Charge
15m 7.5m
A
B
C
D
[Outdoor Unit]
[Indoor Unit]
Standard Length
(m) Max piping (m)
A,B,C,D A B C D
L4UH602FA2
L4UC602FA2 7.5 30 30 30 30 80(A+B+C+D) 30
Model
[Outdoor Unit] Charge(g/m)
Max total piping
length(m)
over the total 30m pipe length
Additional Charge
Gas Valve
Service Valve Wrench
Liquid Valve
Service Valve Wrench
Cap
hExtra refrigerant = (Extended length - Rated length) x Additional refrigerant

Installation Manual 9
ENGLISH
2. 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.
1. Route the indoor tubing and the drain hose in the direction of rear left or right
Connecting
pipe
Connecting cable
Tape
Drain hose
Connecting
pipe
Connecting cable
Tape
Drain hose
CAUTION: If the drain hose is routed inside the room, insulate the hose with
an insulation material* so that dripping from "sweating"(condensation) will
not damage furniture or floors.
*Foamed polyethylene or equivalent is recommended.
Installation of Indoor, Outdoor Unit
Indoor unit installation
Wall Mounted Type

10 Air Conditioner
Installation of Indoor, Outdoor Unit
nIndoor unit installation on
installation plate
1. 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 properly 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).
Connecting the pipings to the in
door unit and drain hose to drain
pipe
1. Align the center of the pipings and sufficiently
tighten the flare nut by hand.
2. Tighten the flare nut with a wrench.
3. When extending the drain hose at the indoor
unit, install the drain pipe.
Wrap the insulation material
around the connecting portion.
1. Overlap the connection pipe insulation
material and the indoor unit pipe insulation
material. Bind them together with vinyl tape
so that there is no gap.
2. Wrap the area which accommodates the rear
piping housing section with vinyl tape.
: Recommended Insulation material
Meterial: FOAM PE
Thickness: 10mm
Density: less than 0.032 ±0.005(g/cm3)
Thermal conductivity: less than 0.03
(kcal/m·h°C)
NOTICE
Drain hose
Connecting
cable
Indoor unit tubing Flare nut Pipings
Torque wrench
Indoor unit tubing
Spanner (fixed)
Connection pipe
Flare nut
Vinyl tape(narrow)
Adhesive
Drain pipe
Indoor unit drain hose
Plastic bands Insulation material
Vinyl tape(narrow)
Connection
pipe
Connecting cable
Vinyl tape
(wide) Wrap with vinyl tape
Indoor
unit pipe
Pipe
mm inch kgf.cm
Ø6.35 1/4 180~250
Ø9.52 3.8 340~420
Ø12.7 1/2 550~560
Ø15.88 5/8 630~820
Ø19.05 3/4 990~1 210
Outside diameter Torque