LG ARNU48GBRZ2 Bedienungsanleitung
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 : MFL67798118
www.lg.com
TYPE: Multi V FRESH AIR INTAKE UNIT
Original instruction
ENGLISH ITALIANO ESPAÑOL FRANÇAIS DEUTSCH
ΕΛΛΗΝΙΚΆ
ČEŠTINA
NEDERLANDS
POLSKI
LIMBA ROMÂNĂ
PORTUGUESE
MAGYAR
БЪЛГАРСKN
SRPSKI
HRVATSKI SVENDKA
Fresh Air Intake 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
Installation Limit .....................7
Selection the best location ....9
Ceiling opening dimension
and hanging bolt location ....10
Indoor Unit Installation .........11
Wiring Connection ...............11
Check the Drainage.............12
Installation of Wired Remote
ConTroller ............................15
Name and function of wired
remote controller(Optional) .18
Dip Switch Setting of Indoor
unit PCB ...............................19
Group Control Setting..........20
Model Designation ..............24
Airborne Noise Emission.....24
Limiting concentration .........24
How to Set E.S.P? ................25
Outlet Ait Temp &
Air flow rate ...........................27
Installation Requirements Required Parts Required Tools
2Fresh Air Intake Unit
Features
Air filters
Wired Remote Controller
Air intake vents
Air outlet vents
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
Others
Standard Accessories
• Owner's manual
• Installation manual
Feature
Installation Manual 3
ENGLISH
4Fresh Air Intake Unit
Safety Precautions
Safety Precautions
To prevent injury to the user or other people and property damage, the following instructions must be followed.
■Be sure to read before installing the air conditioner.
■Be sure to observe the cautions specified here as they include important items related to safety.
■Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness is classified by the
following indications.
■Meanings 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.
■Installation
Do not use a defective or un-
derrated 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.
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.
Installation Manual 5
Safety Precautions
ENGLISH
■Operation
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 in-
jury. 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 Autho-
rized 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.
6Fresh Air Intake Unit
Safety Precautions
■Installation
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 en-
sure that water is drained
away properly.
• A bad connection may cause
water leakage.
Keep level even when in-
stalling 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.
If you eat the liquid from the
batteries, brush your teeth and
see doctor. Do not use the re-
mote if the batteries have
leaked.
• The chemicals in batteries
could cause burns or other
health hazards.
Installation Manual 7
Installation
ENGLISH
Read completely, then follow step by step.
▶The total capacity of indoor units exceed 100% of outdoor unit
Installation
Installation Limit
FAU
Outdoor : 20HP
5HP 5HP 5HP 5HP
5HP 5HP 5HP 5HP 5HP
Standard Standard Standard
Outdoor : 20HP
FAU
Outdoor : 10HP
5HP 5HP
FAU
<Only Fresh Air Intake Unit install> <Mixture Install>
<Wrong Install>
FAU
Standard Standard Standard Standard
* FAU : Fresh Air Intake Unit
Standard: Standard Indoor Unit
1. Fresh Air Intake Unit Combination
No Connection Condition Combination
Only Fresh Air Intake Unit installation
Mixture Installation with standard in-
door units and Fresh Intake Units
11) The total capacity of Fresh Air Intake Unit should be 50~100% of outdoor unit.
2) The max quantity of Fresh Air Intake unit is 2 Units.
2
1) The total capacity of indoor units (standard Indoor Unit + Fresh Air Intake Unit)
should be 50~100% of outdoor unit.
2) The total capacity of Fresh Air Intake Units should be less than 30% the total ca-
pacity of indoor units.
①Inlet Hood
Inlet Hood should be installed such that no water enter inside the unit
②Intake Air Duct
The Intake Air Duct must have down-slope about 1/30.
The length of Intake Air Duct should be longer than 2m.
③Fresh Air Intake Unit
If wired remote controller is not connected, it will display strange value to the room temperature
④Exhaust Fan
Fresh Air Intake Unit will make room the positive pressure.
Exhaust fan should be installed to maintain the room pressure.
⑤Door
It would be possible to raise in the room air pressure because of Fresh Air Intake Unit.
In that case, the door could hurt someone in front of door.
So be careful of the positive pressure to design the door.
Min. 2m
Outlet Air
Exhaust air
1/30 Slope
Inlet Hood
Intake Air Duct
Fresh Air Intake Unit
Exhaust Fan
Door
3. Installation of intake air duct
CAUTION : Failure to comply with the above connection conditions for installa-
tion, it can cause cooling & heating capacity down.
2. Connection of the Outdoor Unit
It is possible to connect Heat Pump Models.
It is not possible to connect Heat Recovery Models.
8Fresh Air Intake Unit
Installation
4. The Control System
5. Cycle check and SVC
For Fresh Intake Unit cycle check and SVC, LG MV 5.8 or later version should be used.
1)
In case of connecting with Standard indoor units, Standard indoor unit should be a master unit.
Separate Fresh Air Intake Unit with Standard indoor units
Set only one of Standard indoor units to Master,
2) In case of using central remote controller, mixture of indoor units and Fresh Air Intake Unit in
same zone is not possible.
Separate Fresh Air Intake Unit zone with Standard indoor units zone.
FAU
48 kBtu/h
ZONE 1
FAU
48 kBtu/h 48 kBtu/h 48 kBtu/h
Standard Standard
ZONE 2
FAU
Set one of the Standard Indoor Unit to Master
StandardStandard Standard
FAU
48 kBtu/h
ZONE 1
FAU
48 kBtu/h 48 kBtu/h 48 kBtu/h
Standard Standard
ZONE 2
Slave
* FAU : Fresh Air Intake Unit
Standard: Standard Indoor Unit
Installation Manual 9
Installation
ENGLISH
Install the air conditioner in the location that satisfies 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.(Suitable dimension “H” is necessary to get a slope to drain as fig-
ure.)
• 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.
Top view
(unit: mm)
H
Front view
600600
Front
Inspection hole
(600X600)
Control box
1000
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 ap-
propriate anti-corrosion measures.
Minimum height for motor replacement.
Less than 200mm
Hole size should be
more than the size of IDU.
Insufficient space. Difficult for servicing
20cm to 1000mm2
Sufficient space in the ceiling for servicing.
More than 1000mm1
Remarks
Distance between
False ceiling & Actual ceiling
Number of
Inspection hole
[Inspection Hole Standard]
10 Fresh Air Intake Unit
Installation
■Installation of Unit
Install the unit above the ceiling correctly.
• Apply a joint-canvas between the unit and duct to ab-
sorb 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
E
F
B8 Chassis (76/96k)
BR Chassis (48k)
• 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 Chassis
1680 1565 1160 330 460 580 700 1400 1635 390 445 15
(76/96k)
Dimension
Capacity(Btu/h)
(Unit:mm)
ABCDEF(G)H I
BR Chassis 1282 1230 477 56 590 30 120 1006 294
(48k)
Dimension
Capacity(Btu/h)
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