LG ARNU07GBHA2 User manual

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.
P/NO : MFL68025101
www.lg.com
TYPE: Ceiling Concealed Duct - High Static
ENGLISH ESPAÑOL FRANÇAIS
РУССКИЙ ЯЗЫК
O‘ZBEK TILI

2Indoor Unit
Ceiling Concealed Duct - High Static Type Indoor Unit Installation Manual
TABLE OF CONTENTS
oFour type "A" screws
oConnecting cable
oPipes: Gas side
Liquid side
(Refer to Product
Data)
oInsulation materials
oAdditional drain pipe
oLevel gauge
oScrew driver
oElectric drill
oHole core drill
oFlaring tool set
oSpecified torque wrenches
(different depending on model No.)
oSpanner .......Half union
oA glass of water
oScrew driver
oHexagonal wrench
oGas-leak detector
oVacuum pump
oGauge manifold
oOwner's manual
oThermometer
Features ...................................3
Safety Precautions.................4
Installation ...............................7
Selection the best location ....7
Ceiling opening dimension
and hanging bolt location ......8
Indoor Unit Installation...........9
Wiring Connection .................9
Checking the Drainage........10
Dip Switch Setting ...............13
Group Control Setting..........14
How to Set E.S.P? ................19
Installation Requirements Required Parts Required Tools

Installation Manual 3
Feature
ENGLISH
Air filters
Wired Remote Controller
Air intake vents
Air outlet vents
RemoteController
TEMP
Features
Name
Quantity
Shape for gas pipe
for liquid pipe
Clamp metal
2 EA
Insulation for
fitting
1 SET
Drain hose
1 EA
Clamp
(Tie Wrap)
8 EA
Washer for
hanging backet
4 EA
(Other)
• Owner's manual
• Installation manual

4Indoor Unit
Safety Precautions
Safety Precautions
To prevent injury to the user or other people and property damage, the following instructions must be followed.
nBe sure to read before installing the air conditioner.
nBe sure to observe the cautions specified here as they include important items related to safety.
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.
This symbol indicates the possibility of death or serious injury.
This symbol indicates the possibility of injury or damage to properties only.
Be sure not to do.
Be sure to follow the instruction.
nInstallation
Do not use a defective or
underrated circuit breaker.
Use this appliance on a dedi-
cated 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.
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 break-
er or fuse.
• There is risk of fire or electric
shock.

Installation Manual 5
Safety Precautions
ENGLISH
nOperation
Do not modify or extend the
power cable.
• There is risk of fire or electric
shock.
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.
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 evapo-
rator.
For installation, always con-
tact 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 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 do 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.
Gasolin

6Indoor Unit
Safety Precautions
nInstallation
Always check for gas (refrig-
erant) leakage after installa-
tion 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 dam-
age the neighborhoods.
• It may cause a problem for
your neighbors.
Use two or more people to
lift and transport the product.
• 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 evapora-
tor fins, could cause product
malfunction or inefficient opera-
tion.
90˚
If you eat the liquid from the
batteries, brush your teeth
and see doctor. Do not use
the remote if the batteries
have leaked.
• The chemicals in batteries
could cause burns or other
health hazards.
Make sure to check the rated
pressure outside machine
and adjust E.S.P value after
the installation of the product.
• Otherwise, there is a risk of
weak cooling/heating and con-
densed water emission/drip-
ping.

Installation Manual 7
Installation
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 be leveled.
• 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.
Read completely, then follow step by step.
Top view
Unit : mm
20 or more
Front view
600600
Front
Inspection hole
(600X600)
Control box
1000
ENGLISH
Installation
Selection of the best location
CAUTION : In case that the unit is installed near the sea, the installation parts
may be corroded by salt, The installation parts (and the unit) should be taken
appropriate anti-corrosion measures.
Minimum height for motor replacement.
Less than 20cm
Hole size should be
more than the size of IDU.
Insufficient space. Difficult for servicing
20cm to 100cm2
Sufficient space in the ceiling for servicing.
More than 100cm1
Remarks
Distance between
False ceiling & Actual ceiling
Number of
Inspection hole
[Inspection Hole Standard]

8Indoor Unit
Installation
nInstallation of Unit
Install the unit above the ceiling correctly.
• Apply a joint-canvas between the unit and duct to
absorb unnecessary vibration.
• Install the unit leaning to a drainage hole side as a fig-
ure 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.
CASE 1
POSITION OF SUSPENSION BOLT
CASE 2
POSITION OF CONSOLE BOLT
Drainage hole
M10 Nut
M10 washer
X 4
X 4
M10 Nut
M10 washer
X 4
X 8
A
B
CD
(G)
H
I
EF
B8 Chassis
BH/BG/BR Chassis
A
F
BKL
J
EC
GD
H
I
• 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.
NOTICE
Ceiling dimension and hanging bolt location
(Unit:mm)
ABCDEFGH I JKL
B8 1622 1565 580 292 695 1400 460 1122 1680 390 445 15
Dimension
Chassis
(Unit:mm)
ABCDEF(G)H I
BH 932 882 355 47 450 30 87 750 158
BG 1232 1182 355 47 450 30 87 830 186
BR 1282 1230 477 56 590 30 120 1006 294
Dimension
Chassis

Installation Manual 9
Installation
ENGLISH
• 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
ceiling.
•
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.
1 Set anchor
Old building New building
2 Plate washer
3 Spring washer
4 Nut
5 Suspension
bolts
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.
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
1.5mm2 cable(thinner cable) on the clamp and tighten it with a plastic clamp to the other boss of the control
panel.
Terminal Block Indoor
1(L) 2(N) 3 4
INDOOR POWER INPUT
IDU IDU
Outdoor unit Indoor unit
Central controller
SODU SODU
DRY1 DRY2 GND INTERNET 12V
Outdoor unit
Wiring Connection
Indoor Unit Installation
CAUTION : Tighten the nut and bolt
to prevent unit falling.
WARNING : Make sure that the screws of the terminal are free from looseness.
CAUTION : The Power cord connected to the unit should be selected according
to the following specifications.

10 Indoor Unit
Installation
1. Remove the Air Filter.
2. Check the drainage.
• Spray one or two glasses of water upon the
evaporator.
• Ensure that water flows drain hose of indoor
unit without any leakage.
Checking the Drainage
INSULATION, OTHERS Insulate the joint and tubes completely.
All thermal insulation must comply with local requirement.
INDOOR UNIT
THERMAL INSULATION
Make sure that there is no clearance here.
Overlap with thermal
insulator for piping.
Thermal insulator for refrigerant pipe
(Local supply) Thermal insulator for
piping(Local supply)
Hose crip for thermal insulator(Local supply)
Union for liquid pipe
Refrigerant pipe and thermal
insulator(Local supply)
Union for gas pipe
Thermal insulator for refrigerant pipe
(Local supply)
Hose crip for thermal insulator
(Local supply)