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LG ARNU24GM1A4.ENCBLEU, ARNU48GM3A4.ENCBLEU, ARNU42GM2A4.ENCBLEU, ARNU09GM1A4.ENCBLEU, ARNU36GM2A4.ENCBLEU, ARNU28GM2A4.ENCBLEU, ARNU54GM3A4.ENCBLEU, ARNU12GM1A4.ENCBLEU, ARNU07GM1A4.ENCBLEU, LG Ceiling Concealed Ducts Installation guide
ITALIANO
ESPAÑOL
FRANÇAIS
DEUTSCH
AIR
CONDITIONER
ENGLISH
УКРАÏНСЬКА ҚАЗАҚ ТІЛІ БЕЛАРУСКАЯ МОВА O‘ZBEK TILI
INSTALLATION MANUAL
ΕΛΛΗΝΙΚΆ
ČEŠTINA
www.lg.com
Copyright © 2017 - 2019 LG Electronics Inc. All Rights Reserved.
LIMBA ROMÂNĂ РУССКИЙ ЯЗЫК
MFL68821904
Rev.01_040219
POLSKI
CEILING CONCEALED DUCT
Original instruction
[Representative] LG Electronics Inc. EU Representative : LG Electronics European Shared
Service Center B.V. Krijgsman 1, 1186 DM Amstelveen, The Netherlands
[Manufacturer] LG Electronics Inc. Changwon 2nd factory 84, Wanam-ro, Seongsan-gu,
Changwon-si, Gyeongsangnam-do, KOREA
NEDERLANDS
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.
Table of contents
TABLE OF CONTENTS
3
FEATURES
4
SAFETY PRECAUTIONS
10
INSTALLATION
10
Selection of the best location
12
Ceiling dimension and hanging bolt location
13
Indoor Unit Installation
13
Wiring Connection
14
Checking the Drainage
15
Indoor Unit Drain Piping
17
DIP Switch Setting
18
Group Control Setting
23
Model Designation
23
Airborne Noise Emission
23
Limiting concentration
24
HOW TO SET E.S.P?
2
Indoor Unit
Feature
ENGLISH
Features
Air inlet vents
Air outlet vents
Remote Controller
(Accessory)
Installation Tool
Name
Quantity
Drain hose Clamp metal
1 EA
2 EA
Washer for
hanging bracket
Clamp
(Tie Wrap)
Insulation for
fitting
8 EA
4 EA
1 SET
(Other)
• Owner's manual
• Installation manual
Shape
for gas pipe
for liquid pipe
Installation Manual 3
Safety Precautions
Safety Precautions
The following symbols are displayed on indoor and outdoor units.
Read the precautions in this manual
carefully before operating the unit.
This appliance is filled with flammable
refrigerant (R32)
This symbol indicates that the Operation
Manual should be read carefully.
This symbol indicates that a service
personnel should be handling this
equipment with reference to the
Installation Manual.
To prevent injury to the user or other people and property damage, the following instructions must be
followed.
n Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness is
classified by the following indications.
!
!
WARNING
CAUTION
This symbol indicates the possibility of death or serious injury.
This symbol indicates the possibility of injury or damage to properties only.
n Meanings of symbols used in this manual are as shown below.
Be sure not to do.
Be sure to follow the instruction.
!
WARNING
Installation
• Compliance with national gas regulations shall be observed.
• 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.
• 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 modify or extend the power cable.
- There is risk of fire or electric shock.
4
Indoor Unit
Safety Precautions
Installation Manual 5
ENGLISH
• Do not install, remove, or re-install the unit by yourself (customer).
- There is risk of fire, electric shock, explosion, or injury.
• 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 turn on the breaker or power under condition that front panel,
cabinet, top cover, control box cover are removed or opened.
- Otherwise, it may cause fire, electric shock, explosion or death.
• 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.
• Have all electric work done by a licensed electrician according to
"Electric Facility Engineering Standard" and "Interior Wire Regulations"
and the instructions given in this manual and always use a special
circuit.
- If the power source capacity is inadequate or electric work is
performed improperly, electric shock or fire may result.
• Always intstall a dedicated circuit and breaker.
- Improper wiring or installation may cause fire or electric shock.
• The appliance shall be stored in a well-ventilated area where the room
size corresponds to the room area as specified for operation. (for R32)
• Ducts connected to an appliance shall not contain an ignition source.
(for R32)
• The appliance shall be stored in a room without continuously operating
ignition sources (for example: open flames, an operating gas appliance
or an operating electric heater.)
• Keep any required ventilation openings clear of obstruction.
• Mechanical connections shall be accessible for maintenance purposes.
• To prevent the mixing of different types of refrigerants, be sure to check
the type of refrigerant used in the outdoor unit.
Safety Precautions
Operation
• 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.
• Take care to ensure that power cable could not be pulled out or
damaged during operation.
- There is risk of fire or electric shock.
• Do not place anything on the power cable.
- There is risk of fire or electric shock.
• Do not plug or unplug the power supply plug during operation.
- There is risk of fire or electric shock.
• Do not touch(operate) the product with wet hands.
- There is risk of fire or electrical shock.
• Do not place a heater or other appliances near the power cable.
- There is risk of fire and electric shock.
• Do not allow water to run into electric parts.
- There is risk of fire, failure of the product, or electric shock.
• Do not store or use flammable gas or combustibles near the product.
- There is risk of fire or failure of product.
• Do not use the product in a tightly closed space for a long time.
- Oxygen deficiency could occur.
• When flammable gas leaks, turn off the gas and open a window for
ventilation before turn the product on.
- Do not use the telephone or turn switches on or off. There is risk of
explosion or fire.
• If strange sounds, smell or smoke comes from product. Turn the
breaker off or disconnect the power supply cable.
- There is risk of electric shock or fire.
• Stop operation and close the window in storm or hurricane.
If possible, remove the product from the window before the hurricane
arrives.
- There is risk of property damage, failure of product, or electric shock.
• Do not open the inlet grill of the product during operation.
(Do not touch the electrostatic filter, if the unit is so equipped.)
- There is risk of physical injury, electric shock, or product failure.
• When the product is soaked (flooded or submerged), contact an
Authorized Service Center.
- There is risk of fire or electric shock.
• Be cautious that water could not enter the product.
- There is risk of fire, electric shock, or product damage.
• Ventilate the product from time to time when operating it together with a
6
Indoor Unit
Safety Precautions
!
CAUTION
Installation
• 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.
• 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 evaporator fins, could cause product malfunction or
Installation Manual 7
ENGLISH
stove, etc.
- There is risk of fire or electric shock.
• Turn the main power off when cleaning or maintaining the product.
- There is risk of electric shock.
• When the product is not be used for a long time, disconnect the power
supply plug or turn off the breaker.
- There is risk of product damage or failure, or unintended operation.
• Take care to ensure that nobody could step on or fall onto the outdoor
unit.
- This could result in personal injury and product damage.
• When mechanical connectors are reused indoors, sealing parts shall
be renewed. (for R32)
• When flared joints are reused indoors, the flare part shall be refabricated. (for R32)
• Periodic ( more than once/year ) cleaning of the dust or salt particles
stuck on the heat exchanger by using water.
• Do not use means to accelerate the defrosting process or to clean,
other than those recommended by the manufacturer.
• Do not pierce or burn refrigerant cycle part.
• Be aware that refrigerants may not contain an odour.
Safety Precautions
inefficient operation.
• Any person who is involved with working on or breaking into a
refrigerant circuit should hold a current valid certificate from an industryaccredited assessment authority, which authorises their competence to
handle refrigerants safely in accordance with an industry recognised
assessment specification. (for R32)
• The appliance shall be stored so as to prevent mechanical damage
from occurring.
• Refrigerant tubing shall be protected or enclosed to avoid damage.
• Flexible refrigerant connectors (such as connecting lines between the
indoor and outdoor unit) that may be displaced during normal
operations shall be protected against mechanical damage.
• The installation of pipe-work shall be kept to a minimum.
• Pipe-work shall be protected from physical damage.
• A brazed, welded, or mechanical connection shall be made before
opening the valves to permit refrigerant to flow between the
refrigerating system parts.
• Dismantling the unit, treatment of the refrigerant oil and eventual parts
should be done in accordance with local and national standards.
Operation
• Do not expose the skin directly to cool air for long periods of time.
(Don't sit in the draft.)
- This could harm to your health.
• Do not use the product for special purposes, such as preserving foods,
works of art, etc. It is a consumer air conditioner, not a precision
refrigeration system.
- There is risk of damage or loss of property.
• Do not block the inlet or outlet of air flow.
- It may cause product failure.
• Use a soft cloth to clean. Do not use harsh detergents, solvents, etc.
- There is risk of fire, electric shock, or damage to the plastic parts of
the product.
• Do not touch the metal parts of the product when removing the air filter.
They are very sharp!
- There is risk of personal injury.
• Do not step on or put anything on the product. (outdoor units)
- There is risk of personal injury and failure of product.
• Always insert the filter securely. Clean the filter every two weeks or
more often if necessary.
8
Indoor Unit
Safety Precautions
Installation Manual 9
ENGLISH
- A dirty filter reduces the efficiency of the air conditioner and could
cause product malfunction or damage.
• Do not insert hands or other objects through the air inlet or outlet while
the product is operated.
- There are sharp and moving parts that could cause personal injury.
• Do not drink the water drained from the product.
- It is not sanitary and could cause serious health issues.
• Use a firm stool or ladder when cleaning or maintaining the product.
- Be careful and avoid personal injury.
• Replace the all batteries in the remote control with new ones of the
same type. Do not mix old and new batteries or different types of
batteries.
- There is risk of fire or explosion.
• Do not recharge or disassemble the batteries. Do not dispose of
batteries in a fire.
- They may burn or explode.
• If the liquid from the batteries gets onto your skin or clothes, wash it
well with clean water. Do not use the remote if the batteries have
leaked.
- The chemicals in batteries could cause burns or other health hazards.
• 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.
• Servicing shall only be performed as recommended by the equipment
manufacturer. Maintenance and repair requiring the assistance of other
skilled personnel shall be carried out under the supervision of the
person competent in the use of flammable refrigerants. (for R32)
• Means for disconnection must be incorporated in the fixed wiring in
accordance with the wiring rules.
• If the supply cord is damaged, it must be replaced by the manufacturer,
its service agent or similarly qualified persons in order to avoid a
hazard.
Installation
Installation
Read completely, then follow step by step.
Selection of the best 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 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.
• 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)
Air inlet vents
Inspection hole(1)
600 x 600
Control box
600
1 000
Air outlet vents
Inspection hole(2)
Front
600 x 600
600
Front view (Unit: mm)
More than 20
!
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.
[Inspection Hole Standard]
Number of
inspection hole
Distance between
false ceiling & actual ceiling
Remarks
1
More than 100 cm
Sufficient space in the ceiling for servicing.
2
20 cm to 100 cm
Insufficient space. Difficult for servicing
Hole size should be more
than the size of IDU.
Less than 20 cm
Minimum height for motor replacement.
10
Indoor Unit
Installation
(for R32)
- The appliance shall be installed, operated and stored in a room with a floor area larger than the
minimum area.
- Use the graph of table to determine the minimum area.
Amin (m2) 600
Floor standing
500
400
300
200
100
Wall mounted
Ceiling mounted
m (kg)
0
0
1.224
2
3
4
5
6
7
8
- m : Total refrigerant amount in the system
- Total refrigerant amount : factory refrigerant charge + additional refrigerant amount
- Amin : minimum area for installation
Floor location
m (kg) Amin (m2)
< 1.224
1.224
12.9
1.4
16.82
1.6
21.97
1.8
27.80
2
34.32
2.2
41.53
2.4
49.42
2.6
58.00
2.8
67.27
3
77.22
3.2
87.86
3.4
99.19
3.6
111.20
3.8
123.90
4
137.29
4.2
151.36
4.4
166.12
Floor location
m (kg) Amin (m2)
4.6
181.56
4.8
197.70
5
214.51
5.2
232.02
5.4
250.21
5.6
269.09
5.8
288.65
6
308.90
6.2
329.84
6.4
351.46
6.6
373.77
6.8
396.76
7
420.45
7.2
444.81
7.4
469.87
7.6
495.61
7.8
522.04
Wall mounted
m (kg) Amin (m2)
< 1.224
1.224
1.43
1.4
1.87
1.6
2.44
1.8
3.09
2
3.81
2.2
4.61
2.4
5.49
2.6
6.44
2.8
7.47
3
8.58
3.2
9.76
3.4
11.02
3.6
12.36
3.8
13.77
4
15.25
4.2
16.82
4.4
18.46
Wall mounted
m (kg) Amin (m2)
4.6
20.17
4.8
21.97
5
23.83
5.2
25.78
5.4
27.80
5.6
29.90
5.8
32.07
6
34.32
6.2
36.65
6.4
39.05
6.6
41.53
6.8
44.08
7
46.72
7.2
49.42
7.4
52.21
7.6
55.07
7.8
58.00
Ceiling Mounted
m (kg) Amin (m2)
< 1.224
1.224
0.956
1.4
1.25
1.6
1.63
1.8
2.07
2
2.55
2.2
3.09
2.4
3.68
2.6
4.31
2.8
5.00
3
5.74
3.2
6.54
3.4
7.38
3.6
8.27
3.8
9.22
4
10.21
4.2
11.26
4.4
12.36
Ceiling Mounted
m (kg) Amin (m2)
4.6
13.50
4.8
14.70
5
15.96
5.2
17.26
5.4
18.61
5.6
20.01
5.8
21.47
6
22.98
6.2
24.53
6.4
26.14
6.6
27.80
6.8
29.51
7
31.27
7.2
33.09
7.4
34.95
7.6
36.86
7.8
38.83
Installation Manual 11
ENGLISH
Minimum floor area
Installation
Ceiling dimension and hanging bolt location
n Installation of Unit
Install the unit above the ceiling correctly.
E
D
C
G
POSITION OF SUSPENSION BOLT
• Apply a joint-canvas between the unit and duct
to absorb unnecessary vibration.
• 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.
F
I
J
A
B
H
Drain hole
M10 Nut
X4
M10 washer
X4
M10 washer
X4
M10 Nut
X8
(Unit:mm)
Dimension
Chassis name
M1
A
B
C
D
E
F
G
933.4
971.6
H
I
J
619.2
700
30
270
15.2
858
201.4
900
M2
1 283.4 1 321.6
619.2
700
30
270
15.2
1 208
201.4
1 250
M3
1 283.4 1 321.6
619.2
700
30
360
15.2
1 208
291.4
1 250
NOTICE
• 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.
12
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
suspension 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.
Old building
New building
1 Set anchor
2 Plate washer
!
3 Spring washer
CAUTION
4 Nut
Tighten the nut and bolt to prevent unit falling.
5 Suspension
bolts
Wiring Connection
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.
<M1 Chassis>
Terminal Block Indoor
INDOOR POWER INPUT
Outdoor unit Indoor unit
Terminal Block Indoor
2(N)
3
Central controller
Outdoor unit
SODU SODU IDU IDU INTERNET DRY1 DRY2 GND 12 V
4
GN/YL
1(L)
<M2/M3 Chassis>
Terminal Block Indoor
Terminal Block Indoor
GN/YL
1(L)
!
2(N)
Terminal Block Indoor
3
4
Outdoor unit Indoor unit
Central controller
Outdoor unit
SODU SODU IDU IDU INTERNET DRY1 DRY2 GND 12 V
INDOOR POWER INPUT
WARNING
Make sure that the screws of the terminal are free from looseness.
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 0.75 mm2 cable(thinner cable) on the clamp and tighten it with a plastic clamp to
the other boss of the control panel.
!
CAUTION
The Power cord connected to the unit should be selected according to the following
specifications.
Installation Manual 13
ENGLISH
Indoor Unit Installation
Installation
INSULATION, OTHERS
Insulate the joint and tubes completely.
All thermal insulation must comply with local requirement.
THERMAL INSULATION
INDOOR UNIT
Liquid pipe
Refrigerant pipe and thermal
insulation(Local supply)
Thermal insulator for refrigerant pipe
(Local supply) Thermal insulator for
piping(Local supply)
Clamp for insulation
(Local supply)
Insulation
(Local supply)
Union for gas pipe
!
Overlap with thermal
insulator for piping.
Hose clip for thermal insulator(Local supply)
Make sure that there is no clearance here.
CAUTION
(for R32)
• When mechanical connectors are reused indoors, sealing parts shall be renewed.
• When flared joints are reused indoors, the flare part shall be
re-fabricated.
Checking the Drainage
1. Remove the Air Filter.
Air outlet vents
Air filters
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.
14
Indoor Unit
Installation
ENGLISH
!
CAUTION
1. Install declination of the indoor unit is very important for the drain of the duct type air
conditioner.
2. Minimum thickness of the insulation for the connecting pipe shall be 5 mm.
Front of view
1~3 mm
• The unit must be horizontal or declined to the drain hose connected when finished installation.
Ceiling
Drainage hole
Indoor Unit Drain Piping
• Drain piping must have down-slope (1/50 to 1/100): be sure
not to provide up-and-down slope to prevent reversal flow.
• During drain piping connection, be careful not to exert
extra force on the drain port on the indoor unit.
• The outside diameter of the drain connection on the
indoor unit is 32 mm.
Piping material: Polyvinyl chloride pipe
inner diometes Ø 25 mm and pipe fittings
Upward
routing
not allowed
Pipe clamp
Indoor unit
Maintenance
drain port
• Be sure to install heat insulation on the drain piping.
1/50~1/100
Heat insulation material: Polyethylene foam
with thickness more than 8 mm.
MAX 700 mm
Drain test
The air conditioner uses a drain pump to drain water.
Use the following procedure to test the drain pump operation:
Feed water
Flexible drain hose
(accessory)
Main
drain pipe
Drain Pump
Drain
port
Glue the joint
Drain hose connection
Use the clip (accessory)
• Connect the main drain pipe to the exterior and
leave it provisionally until the test comes to an end.
• Feed water to the flexible drain hose and check the
piping for leakage.
• Be sure to check the drain pump for normal
operation and noise when electrical wiring is
complete.
• When the test is complete, connect the flexible
drain hose to the drain port on the indoor unit.
Drain pan
CAUTION
The supplied flexible drain hose should
not be strained. A strained hose may
cause leakage of water.
Metal
clamp
Flexible drain hose
Hanger Bracket
1/50~1/100 slope
Max 700 mm
!
Hanger
Max 300 mm distance
1~15 m
Insulation
Installation Manual 15
Installation
!
CAUTION
After the confirmation of the above conditions, prepare the wiring as follows:
1) Never fail to have an individual power specialized for the air conditioner. As for the
method of wiring, be guided by the circuit diagram posted on the inside of control
box cover.
2) Provide a circuit breaker switch between power source and the unit.
3) The screws which fasten the wiring in the casing of electrical fittings are liable to
come loose from vibrations to which the unit is subjected during the course of
transportation. Check them and make sure that they are all tightly fastened. (If they
are loose, it could give rise to burn-out of the wires.)
4) Specification of power source
5) Confirm that electrical capacity is sufficient.
6) Be sure that the starting voltage is maintained at more than 90 percent of the rated
voltage marked on the name plate.
7) Confirm that the cable thickness is as specified in the power sources specification.
(Particularly note the relation between cable length and thickness.)
8) Never fail to equip a leakage breaker where it is wet or moist.
9) The following troubles would be caused by voltage drop-down.
• Vibration of a magnetic switch, damage on the contact point, fuse breaking, disturbance
by the normal function of an overload protection device.
• Proper starting power is not given to the compressor.
HAND OVER
Teach the customer the operation and maintenance procedures, using the operation manual.
(air filter cleaning, temperature control, etc.)
16
Indoor Unit
Installation
ENGLISH
DIP Switch Setting
1. Indoor Unit
SW1
SW2
Function
Description
Communication N/A (Default)
Cycle
N/A (Default)
SW3
Group Control
Selection of Master or
Slave
SW4
Dry Contact
Mode
Selection of Dry
Contact Mode
SW5
Installation
SW6
Fan continuous
operation
Heater linkage N/A
Ventilator
linkage
SW7
SW8
!
Selection of Ventilator
linkage
Vane selection Selection of up/down
(Console)
side Vane
Region
selection
Etc.
Selection tropical
region
Spare
Setting Off
-
Setting On Default
Off
Off
Master
Wired/Wireless remote
controller
selection of Manual or Auto
operation Mode
Continuous operation
Removal
-
Slave
Off
Auto
Off
-
Off
-
Off
Linkage Removal
Working
Up side + Down side Vane
Up side Vane
Only
Tropical
model
-
General model
-
Off
Off
CAUTION
For Multi V Models, DIP switch 1, 2, 6, 8 must be set OFF.
2. Outdoor Unit
In case that the products meet specific conditions, “Auto addressing” function can start automatically
with the improved speed by turning the DIP switch #3 of the outdoor unit and resetting the power.
※ Specific conditions:
- All names of the indoor units are ARNU****4.
- The serial number of Multi V super IV (outdoor units) is after October 2013.
DIP switch
7 segment
Outdoor Unit PCB
Outdoor Unit DIP Switch
Installation Manual 17
Installation
Group Control Setting
1. Group Control 1
n Wired remote controller 1 + Standard Indoor Units
LGAP Network System
or
Master
Slave
Display Error Message
°C/°F(5 s)
Slave
Slave
GND
Signal
12 V
Only connect serial signal and GND lines
between indoor units.
Master
TIME(3 s)
n DIP Switch in PCB
¿ Master Setting
- No. 3 Off
¡ Slave Setting
- No. 3 On
Indoor Unit DIP Switch
Some products have no DIP switch on PCB. It is possible to set indoor units to Master or Slave by
using the wireless remote controller instead of DIP switch.
For the details of the setting, please refer to the manual of the wireless remote controller.
1. It is possible to 16 indoor units(Max.) by one wired remote controller.
Set only one indoor unit to Master, set the others to Slave.
2. It is possible to connect with every type of indoor units.
3. It is possible to use wireless remote controller at the same time.
4. It is possible to connect with Dry Contact and Central controller at the same time.
- The Master indoor unit is possible to recognize Dry Contact and Central Controller only.
5. In case that any error occurs at indoor unit, the error code is displayed on the wired remote
controller.
It is possible to control the other indoor units except the error units.
18
Indoor Unit
Installation
ENGLISH
h It is possible to connect indoor units since Feb. 2009.
h It can be the cause of malfuctions when there is no setting of master and slave.
h In case of Group Control, it is possible to use following functions.
- Selection of operation, stop or mode
- Temperature setting and room temperature check
- Current time change
- Control of flow rate (High/Middle/Low)
- Reservation settings
It is not possible to use some functions.
2. Group Control 2
n Wired remote controllers + Standard Indoor Units
LGAP Network System
or
Master
Master
Slave
Slave
GND
Signal
12 V
Donʼt connect serial 12 V line
Display Error Message
°C/°F(5 s)
TIME(3 s)
Master
Master
h It is possible to control 16 indoor units(Max.) with the master wired remote control.
h Other than those, it is same with the Group Control 1.
Installation Manual 19
Installation
3. Group Control 3
n Mixture connection with indoor units and Fresh Air Intake Unit
LGAP Network System
or
FAU
Master
Master
Master
FAU
Slave
Slave
N
M
Display Error Message
Display Error Message
°C/°F(5 s)
GND
Signal
12 V
Master
Master
TIME(3 s)
h In case of connecting with standard indoor unit and Fresh Air Intake Unit, separate Fresh Air
Intake Unit with standard units. (N, M ≤ 16) (Because setting temperature are different.)
h Other than those, it is same with Group Control 1.
FAU
FAU
Standard
Standard
FAU
FAU
Standard
Standard
* FAU : Fresh Air Intake Unit
Standard: Standard Indoor Unit
20
Indoor Unit
Installation
ENGLISH
4. 2 Remote Control
n Wired remote controller 2 + Indoor unit 1
LGAP Network System
or
Slave
Master
Slave
Slave
GND
Signal
12 V
Display Error Message
°C/°F(5 s)
TIME(3 s)
Master
Slave
1. It is possible to connect two wired remote controllers (Max.) with one indoor unit.
Set only one indoor unit to Master, set the others to Slave.
Set only one wired remote controller to Master, set the others to Slave.
2. Every types of indoor unit is possible to connect two remote controller.
3. It is possible to use wireless remote controller at the same time.
4. It is possible to connect with Dry Contact and Central controller at the same time.
5. In case that any error occurs at indoor unit, the error code is displayed on the wired
remote controller.
6. There isnʼt limits of indoor unit function.
Installation Manual 21
Installation
5. Accessories for group control setting
It is possible to set group control by using below accessories.
Indoor unit 2 EA +Wired remote controller
h PZCWRCG3 cable used for connection
Indoor unit 1 EA +Wired remote controller 2 EA
h PZCWRC2 cable used for connection
S lave
Mas te r
PZC WRC 2
PZC WRC G3
Maste r
!
Maste r
S lave
CAUTION
• Apply totally enclosed noncombustible conduit in case of local building code Requiring plenum
cable usage.
22
Indoor Unit
Installation
ENGLISH
Model Designation
ARN
U
07
G
M1
A
4
Serial Number
Combinations of functions
A: Basic function
L: Neo Plasma(Wall Mounted)
C: Plasma(Ceiling Cassette) B: High Static
G: Low Static
K: High Sensible Heat
U: Floor Standing without Case
SE/S8 - R: Mirror V: Silver B:Blue(ART COOL Type Panel Clolr)
SF
- E: Red V: Silver G:Gold 1: Kiss (Photo changeable)
Q: Console
Z: Fresh Air Intake Unit
Chassis Name
Electrical Ratings
1:1Ø, 115 V, 60 Hz
6:1Ø, 220 - 240 V, 50 Hz
3:1Ø, 208/230 V, 60 Hz
2:1Ø, 220 V, 60 Hz
7:1Ø, 100 V, 50/60 Hz
G:1Ø, 220 - 240 V, 50 Hz/1Ø, 220 V, 60 Hz
Total Cooling Capacity in Btu/h
EX) 5 000 Btu/h ➝ '05'
18 000 Btu/h ➝ '18'
Combination of Inverter Type and Cooling Only or Heat Pump
N: AC Inverter and H/P
V: AC Inverter and C/O
U: DC Inverter and H/P and C/O
System with Indoor Unit using R32 / R410A
❈ LGETA:U Ex) URN
Airborne Noise Emission
The A-weighted sound pressure emitted by this product is below 70 dB.
** The noise level can vary depending on the site.
The figures quoted are emission level and are not necessarily safe working levels. Whilst there is a
correlation between the emission and exposure levels, this cannot be used reliably to determine
whether or not further precautions are required. Factor that influence the actual level of exposure of the
workforce include the characteristics of the work room and the other sources of noise, i.e. the number
of equipment and other adjacent processes and the length of time for which an operator exposed to the
noise. Also, the permissible exposure level can vary from country to country. This information, however,
will enable the user of the equipment to make a better evaluation of the hazard and risk.
Limiting concentration
Limiting concentration is the limit of Freon gas concentration where immediate measures can be
taken without hurting human body when refrigerant leaks in the air. The limiting concentration shall
be described in the unit of kg/m3 (Freon gas weight per unit air volume) for facilitating calculation
Limiting concentration: 0.44 kg/m3 (R410A)
n Calculate refrigerant concentration
Total amount of replenished refrigerant in refrigerant facility (kg)
Refrigerant concentration =
Capacity of smallest room where indoor unit is installed (m3)
Installation Manual 23
How to Set E.S.P?
How to Set E.S.P?
M1 Chassis : 7, 9, 12, 15, 18 k
Setting
value
70
75
80
85
90
95
100
105
110
115
120
125
130
135
140
145
150
2.5(25)
11.3
12.8
14.4
15.9
17.5
19.0
20.6
22.1
23.7
-
4(39)
11.4
13.2
15.0
16.7
18.5
20.3
22.1
23.8
-
Static Pressure (mmAq(Pa))
6(59)
8(78)
10(98)
12(118)
10.2
12.0
13.7
10.7
15.5
12.5
17.3
14.3
11.1
19.0
16.1
13.1
10.0
20.8
17.9
15.1
12.2
22.6
19.7
17.1
14.3
21.5
19.1
16.5
23.3
21.2
18.7
23.2
20.8
23.0
-
(Unit: CMM)
14(137)
11.3
13.6
15.8
18.0
20.3
22.5
-
M1 Chassis : 24 k
Setting
value
85
90
95
100
105
110
115
120
125
130
135
140
2.5(25)
16.8
18.1
19.4
20.7
22.0
23.3
24.6
25.9
-
4(39)
14.6
15.9
17.2
18.5
19.8
21.1
22.4
23.7
25.1
-
15(147)
11.9
14.3
16.7
19.1
21.5
23.8
(Unit: CMM)
Static Pressure (mmAq(Pa))
6(59)
8(78)
10(98)
12(118)
15.0
16.3
13.9
17.7
15.3
13.0
19.1
16.8
14.6
20.5
18.3
16.3
14.2
21.8
19.7
17.9
15.9
23.2
21.2
19.6
17.5
24.6
22.7
21.2
19.2
24.2
22.9
20.9
24.5
22.6
14(137)
13.3
15.2
17.1
19.0
20.9
15(147)
14.6
16.3
18.1
19.9
Note: 1. The above table shows the correlation between the air rates and E.S.P.
2. Make sure to check and adjust E.S.P (external static pressure) value after the
installation of the product. Otherwise, there is a risk of weak cooling/heating and
condensed water discharge/drop.
24
Indoor Unit
How to Set E.S.P?
Setting
value
65
70
75
80
85
90
95
100
105
110
115
120
125
130
135
140
145
150
155
4(39)
4.7
10.3
15.0
19.0
24.9
27.6
30.4
33.1
35.9
38.6
40.1
-
6(59)
7.6
13.8
20.4
24.4
28.7
31.7
34.7
37.8
39.1
-
(Unit: CMM)
Static Pressure (mmAq(Pa))
8(78)
10(98)
12(118) 14(137)
4.9
7.8
15.7
5.2
20.8
9.2
3.8
24.1
17.5
6.7
30.5
22.2
11.5
5.5
33.8
27.9
20.2
9.1
37.1
31.4
24.6
17.9
38.5
35.0
30.1
21.2
37.1
32.0
27.6
36.8
31.5
40.5
35.9
39.9
-
16(157)
7.5
11.0
15.6
24.3
29.8
34.9
39.4
-
M2 Chassis : 28, 36 k
Setting
value
65
70
75
80
85
90
95
100
105
110
115
120
125
130
135
140
145
150
155
4(39)
4.7
10.3
15.0
19.0
24.9
27.6
30.4
33.1
35.9
38.6
40.1
-
6(59)
7.6
13.8
20.4
24.4
28.7
31.7
34.7
37.8
39.1
-
18(177)
6.7
10.0
16.2
22.4
27.8
34.2
37.1
(Unit: CMM)
Static Pressure (mmAq(Pa))
8(78)
10(98)
12(118) 14(137)
4.9
7.8
15.7
5.2
20.8
9.2
3.8
24.1
17.5
6.7
30.5
22.2
11.5
5.5
33.8
27.9
20.2
9.1
37.1
31.4
24.6
17.9
38.5
35.0
30.1
21.2
37.1
32.0
27.6
36.8
31.5
40.5
35.9
39.9
-
16(157)
7.5
11.0
15.6
24.3
29.8
34.9
39.4
-
18(177)
6.7
10.0
16.2
22.4
27.8
34.2
37.1
Note: 1. The above table shows the correlation between the air rates and E.S.P.
2. Make sure to check and adjust E.S.P (external static pressure) value after the
installation of the product. Otherwise, there is a risk of weak cooling/heating and
condensed water discharge/drop.
Installation Manual 25
ENGLISH
M2 Chassis : 7, 9, 12, 15 k
How to Set E.S.P?
M2 Chassis : 42 k
Setting
value
90
95
100
105
110
115
120
125
130
135
140
145
150
155
4(39)
23.0
25.9
28.6
31.4
34.2
36.6
39.2
41.7
44.0
-
(Unit: CMM)
Static Pressure (mmAq(Pa))
8(78)
10(98)
12(118) 14(137)
19.6
24.2
28.8
21.7
31.8
26.2
19.6
34.8
30.8
24.3
37.7
34.1
29.0
22.3
40.7
37.4
32.6
27.5
43.5
40.4
37.2
32.6
43.4
41.6
37.4
43.4
42.3
43.7
6(59)
19.1
23.3
26.4
29.9
32.7
35.7
38.5
41.2
43.8
-
16(157)
20.5
25.8
30.7
35.4
37.5
M3 Chassis : 18, 24, 28 k
Setting
value
70
75
80
85
90
95
100
105
110
115
120
125
130
135
4(39)
25.2
30.4
35.0
39.8
44.3
49.3
53.0
57.2
-
6(59)
21.4
27.2
35.4
40.1
44.8
49.4
54.1
58.8
-
8(78)
18.5
24.6
31.5
36.8
44.6
49.2
53.9
58.6
-
(Unit: CMM)
Static Pressure (mmAq(Pa))
10(98) 12(118) 14(137) 16(157) 18(177) 20(196)
22.7
28.8
21.4
35.4
27.7
43.0
35.0
26.5
47.9
42.4
33.8
24.3
14.8
52.9
47.8
42.5
31.4
20.3
18.3
57.8
53.1
48.2
39.2
30.2
24.6
49.4
43.1
36.7
33.1
52.7
48.6
44.4
39.6
50.2
45.2
M3 Chassis : 48, 54 k
Setting
value
70
75
80
85
90
95
100
105
110
115
120
125
5(49)
25.1
29.5
34.0
38.4
42.9
47.3
51.8
56.2
-
6(59)
26.1
30.8
35.4
40.1
44.8
49.4
54.1
58.8
-
18(177)
19.9
24.6
29.4
32.7
(Unit: CMM)
Static Pressure (mmAq(Pa))
8(78)
10(98)
12(118)
25.9
30.6
23.2
35.2
28.1
21.0
39.9
33.1
26.3
44.6
38.0
31.7
49.2
43.0
37.1
53.9
47.9
42.4
58.6
52.9
47.8
57.8
53.1
54.2
14(137)
19.5
25.2
31.0
36.7
42.5
48.2
49.4
15(147)
22.6
28.5
34.4
40.3
46.1
47.3
Note: 1. The above table shows the correlation between the air rates and E.S.P.
2. Make sure to check and adjust E.S.P (external static pressure) value after the
installation of the product. Otherwise, there is a risk of weak cooling/heating and
condensed water discharge/drop.
26
Indoor Unit
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