LG ARUN050LMC0, ARUN050GME0 Installation Manual

P/NO : MFL70344401

INSTALLATION MANUAL

VRF FOR INDOOR
INSTALLAION

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

For more information, Refer to the CD or LG Web site (www.lg.com).

AIR
CONDITIONER

www.lg.com

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.

Copyright © 2018 LG Electronics Inc. All Rights Reserved.

ENGLISH

ITALIANO

ESPAÑOL

FRANÇAIS

DEUTSCH

ČEŠTINA

ΕΛΛΗΝΙΚΆ

NEDERLANDS

POLSKI

LIMBA ROMÂNĂ

www.lgcomfortcooling.co.uk

2

ENGLISH

TIPS FOR SAVING ENERGY

Here are some tips that will help you minimize the power consumption
when you use the air conditioner. You can use your air conditioner
more efficiently by referring to the instructions below:

IMPORTANT SAFETY
INSTRUCTIONS

READ ALL INSTRUCTIONS BEFORE USING
THE APPLIANCE.

Always comply with the following precautions
to avoid dangerous situations and ensure peak
performance of your product

WARNING

It can result in serious injury or death when the
directions are ignored

CAUTION

It can result in minor injury or product damage
when the directions are ignored

WARNING

• Installation or repairs made by unqualified
persons can result in hazards to you and
others.

• The information contained in the manual is
intended for use by a qualified service
technician familiar with safety procedures
and equipped with the proper tools and test
instruments.

• Failure to carefully read and follow all
instructions in this manual can result in
equipment malfunction, property damage,
personal injury and/or death.

Installation

• 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.

• Ask the dealer or an authorized technician to
install the air conditioner.

- Improper installation by the user may result

in water leakage, electric shock, or fire.

• Always ground the product.

- There is risk of fire or electric shock.

• Always intstall a dedicated circuit and
breaker.

- Improper wiring or installation may cause

fire or electric shock.

• For re-installation of the installed product,
always contact a dealer or an Authorized
Service Center.

- There is risk of fire, electric shock,

explosion, or injury.

• Do not install, remove, or re-install the unit
by yourself (customer).

- There is risk of fire, electric shock,

explosion, or injury.

• Do not store or use flammable gas or
combustibles near the air conditioner.

- There is risk of fire or failure of product.

• Use the correctly rated breaker or fuse.

- There is risk of fire or electric shock.

• Prepare for strong wind or earthquake and
install the unit at the specified place.

- Improper installation may cause the unit to

topple and result in injury.

!

!

!

• Do not cool excessively indoors. This may be harmful for your health
and may consume more electricity.

• Block sunlight with blinds or curtains while you are operating the air
conditioner.

• Keep doors or windows closed tightly while you are operating the air
conditioner.

• Adjust the direction of the air flow vertically or horizontally to circulate
indoor air.

• Speed up the fan to cool or warm indoor air quickly, in a short period
of time.

• Open windows regularly for ventilation as the indoor air quality may
deteriorate if the air conditioner is used for many hours.

• Clean the air filter once every 2 weeks. Dust and impurities collected
in the air filter may block the air flow or weaken the cooling /
dehumidifying functions.

For your records

Staple your receipt to this page in case you need it to prove the date of
purchase or for warranty purposes. Write the model number and the
serial number here:

Model number :

Serial number :

You can find them on a label on the side of each unit.

Dealer’s name :

Date of purchase :

www.lgcomfortcooling.co.uk

3

ENGLISH

• Do not install the product on a defective
installation stand.

- It may cause injury, accident, or damage to

the 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.

• When installing and moving the air
conditioner to another site, do not charge it
with a different refrigerant from the
refrigerant specified on the unit.

- If a different refrigerant or air is mixed with

the original refrigerant, the refrigerant cycle
may malfunction and the unit may be
damaged.

• Do not reconstruct to change the settings of
the protection devices.

- If the pressure switch, thermal switch, or

other protection device is shorted and
operated forcibly, or parts other than those
specified by LGE are used, fire or explosion
may result.

• Ventilate before operating air conditioner
when gas leaked out.

- It may cause explosion, fire, and burn.

• Securely install the cover of control box and
the panel.

- If the cover and panel are not installed

securely, dust or water may enter the
outside unit and fire or electric shock may
result.

• If the air conditioner is installed in a small
room, measures must be taken to prevent
the refrigerant concentration from
exceeding the safety limit when the
refrigerant leaks.

- Consult the dealer regarding the

appropriate measures to prevent the safety
limit from being exceeded. Should the
refrigerant leak and cause the safety limit
to be exceeded, harzards due to lack of
oxygen in the room could result.

• 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 hazrd.

• This equipment shall be provided with a
supply conductor complying with the
national regulation.

Operation

• Do not damage or use an unspecified power

cord.

- There is risk of fire, electric shock, explosion, or
injury.

• Use a dedicated outlet for this appliance.

- There is risk of fire or electrical shock.

• Be cautious that water could not enter the
product.

- There is risk of fire, electric shock, or product

damage.

• Do not touch the power switch with wet hands.

- There is risk of fire, electric shock, explosion, or

injury.

• When the product is soaked (flooded or
submerged), contact an Authorized Service
Center.

- There is risk of fire or electric shock.

• Be cautious not to touch the sharp edges when
installing.

- It may cause injury.

• Take care to ensure that nobody could step on or
fall onto the outside unit.

- This could result in personal injury and product

damage.

• Do not open the inlet grille 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.

• This appliance is not intended for use by persons
(including children) with reduced physical,
sensory or mental capabilities or lack of
experience and knowledge, unless they have
been given supervision or instruction concerning
use of the appliance by a person responsible for
their safety. Children should be supervised to
ensure that they do not play with the appliance.

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4

ENGLISH

CAUTION

Installation

• Always check for gas (refrigerant) leakage after
installation or repair of product.

- Low refrigerant levels may cause failure of

product.

• Do not install the product where the noise or hot
air from the outside unit could damage the
neighborhoods.

- It may cause a problem for your neighbors.

• Keep level even when installing the product.

- To avoid vibration or water leakage.

• Do not install the unit where combustible gas
may leak.

- If the gas leaks and accumulates around the

unit, an explosion may result.

• Use power cables of sufficient current carrying
capacity and rating.

- Cables that are too small may leak, generate

heat, and cause a fire.

• 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.

• Keep the unit away from children. The heat
exchanger is very sharp.

- It can cause the injury, such as cutting the

finger. Also the damaged fin may result in
degradation of capacity.

• When installting the unit in a hospital,
communication station, or similar place, provide
sufficient protection against noise.

-

The inverter equipment, private power
generator, high-frequency medical equipment,
or radio communication equipment may cause
the air conditioner to operate erroneously, or
fail to operate. On the other hand, the air
conditioner may affect such equipment by
creating noise that disturbs medical treatment
or image broadcasting.

• Do not install the product where it is 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.

Operation

• Do not use the air conditioner in special
environments.

-

Oil, steam, sulfuric smoke, etc. can significantly
reduce the performance of the air conditioner or
damage its parts.

• Do not block the inlet or outlet.

- It may cause failure of appliance or accident.

• Make the connections securely so that the
outside force of the cable may not be applied to
the terminals.

- Inadequate connection and fastening may

generate heat and cause a fire.

• 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, or personal injury.

•

Install and insulate the drain hose to ensure that
water is drained away properly based on the
installation manual.

- A bad connection may cause water leakage.

• Be very careful about product transportation.

- Only one person should not carry the product if

it weighs more than 20 kg.

-

Some products use PP bands for packaging. Do
not use any PP bands for a means

of transportation. It is dangerous.

- Do not touch the heat exchanger fins. Doing so

may cut your fingers.

- When transporting the outside unit, suspending

it at the specified positions on the unit base.
Also support the outside unit at four points so
that it cannot slip sideways.

• Safely dispose of the packing materials.

-

Packing materials, such as nails and other metal or
wooden parts, may cause stabs or other injuries.

-

Tear apart and throw away plastic packaging bags
so that children may not play with them. If children
play with a plastic bag which was not torn apart,
they face the risk of suffocation.

• Turn on the power at least 6 hours before starting
operation.

- Starting operation immediately after turning on

the main power switch can result in severe
damage to internal parts. Keep the power
switch turned on during the operational season.

!

www.lgcomfortcooling.co.uk

5

ENGLISH

• Do not touch any of the refrigerant piping during
and after operation.

- It can cause a burn or frostbite.

• Do not operate the air conditioner with the panels
or guards removed.

- Rotating, hot, or high-voltage parts can cause

injuries.

• Do not directly turn off the main power switch
after stopping operation.

- Wait at least 5 minutes before turning off the

main power switch. Otherwise it may result in
water leakage or other problems.

•

Auto-addressing should be done in condition of
connecting the power of all indoor and outdoour
units. Auto-addressing should also be done in case of
changing the indoor unit PCB.

• Use a firm stool or ladder when cleaning or
maintaining the air conditioner.

- Be careful and avoid personal injury.

• Do not insert hands or other objects through the
air inlet or outlet while the air conditioner is
plugged in.

- There are sharp and moving parts that could

cause personal injury.

• This appliance can be used by children aged from
8 years and above and persons with reduced
physical, sensory or mental capabilities or lack of
experience and knowledge if they have been
given supervision or instruction concerning use of
the appliance in a safe way and understand the
hazards involved. Children shall not play with the
appliance. Cleaning and user maintenance shall
not be made by children without supervision.

TABLE OF CONTENTS

2 TIPS FOR SAVING ENERGY
2 IMPORTANT SAFETY INSTRUCTIONS
6 INSTALLATION PROCESS
6 OUTSIDE UNIT INFORMATION
6 ALTERNATIVE REFRIGERANT R410A
7 SELECT THE BEST LOCATION :

COMPRESSOR MODULE

7 INSTALLATION SPACE : COMPRESSOR

MODULE

7 SELECT THE BEST LOCATION : HEAT

EXCHANGER MODULE

7 INSTALLATION SPACE : HEAT

EXCHANGER MODULE

8 CARRYING METHOD
8 INSTALLATION : COMPRESSOR

MODULE

8

The location of the Anchor bolts

8

Foundation for Installation

9 INSTALLATION : HEAT EXCHANGER

MODULE

10

Heat Exchanger Module Installation

10

Method when insatalling the ducting

10

Method connect the refrigerant piping to the Heat Exchanger Module.

11

Checking the Drainage

11

Indoor Unit Drain Piping

11

Preparation of Piping

12

Plumbing materials and storage methods

12 REFRIGERANT PIPING INSTALLATION

12

Precautions on Pipe connection / Valve operation

13 TO CONNECT THE REFRIGERANT

PIPING TO THE COMPRESSOR MODULE

13

Preparation Work

13

Pipe Drawing Out

14

Refrigerant piping system

14

Selection of Refrigerant Piping

16

Refrigerant charging

16

Distribution Method

17

Branch pipe Fitting

18

Leak Test and Vacuum drying

19

Vacuum Mode

19

Thermal insulation of refrigerant piping

20 ELECTRICAL WIRING

20

Caution

21

Wiring of main power supply and equipment capacity

21

Control box and connecting position of wiring

21

Communication and Power Cables

22

Field Wiring

23

Checking the setting of outside units

23

Automatic Addressing

24

Group Number setting

24

Cool & Heat selector

24

Static pressure compensation mode

25

Night Low Noise Function

25

Setting the ODU address

25

Snow removal & rapid defrost

25

Target pressure adjusting

26

Self-Diagnosis Function

28 CAUTION FOR REFRIGERANT LEAK

28

Introduction

28

Checking procedure of limiting concentration

29 INSTALLATION GUIDE AT THE SEASIDE

29

Model Designation

29

Airborne Noise Emission

www.lgcomfortcooling.co.uk

6

ENGLISH

The foundation must be level even

Avoid short circuits and ensure
sufficient space is allowed for service

Refer to automatic addressing flowchart

Automatic addressing of indoor unit

In the final check for 24hours at 3.8 MPa(38.7 kgf/cm

2

) there

must be no drop in pressure.

Airtight test

Electrical work

(connection circuits and drive circuits)

Make sure no gaps are left where
the insulating materials are joined

Heat insulation work

Make sure airflow is sufficient

Duct work

Adjust to downward gradient

Drain pipe work

Special attention to dryness,
cleanness and tightness

Refrigerant piping work

Check model name to
make sure the fitting
is made correctly

Installation of indoor unit

Take account of gradient
of drain piping

Sleeve and insert work

Make connection clearly between outdoor, indoor,
remote controller and option.

Preparation of contract drawings

Indicate clearly who will be responsible for switch setting.

Determination of division work

The vacuum pump used must have a capacity of reaching at least
5 torr, more than 1 hour

Vacuum drying

Recharge correctly as calculated in this manual. and record the
amount of added refrigerant

Additional charge of refrigerant

Make sure there are no gaps left between the facing materials
used on the ceiling

Fit facing panels

Run each indoor unit in turn to make sure the pipe work
has been fitted correctly

Test run adjustment

Explain the use of the system as clearly as possible to your customer and
make sure all relevant documentation is in order

Transfer to customer with explanation

Preheat the crank case with the electrical heater for more than 6 hours.

Installation of Compressor module &

Heat exchanger module

Foundation work for Compressor Module

& Heat exchanger Module installation

Multiple core cable must not be used.
(suitable cable should be selected)
(Including Connecting communicate wiring to
between Cycle module and Condenser module)

CAUTION

• The above list indicates the order in which the individual work

operations are normally carried out but this order may be varied
where local conditions warrants such change.

• The thickness of the piping should comply with the relevant

local and national regulations for the designed pressure 3.8MPa.

• Since R410A is a mixed refrigerant, the required additional

refrigerant must be charged in its liquid state.(If the refrigerant
is charged in its gaseous state, its composition changes and the
system will not work properly.)

!

Compressor Module Power Supply :
380-415 V 3N~ 50 Hz

CAUTION

• Ratio of the connectable Indoor Units to the Outdoor: Within

50 ~ 130%

• Ratio of running Indoor Units to the Outdoor: Within 10 ~ 100%

• A combination operation over 100% cause to reduce each

indoor unit capacity.

!

System(HP) 5
Model ARUN050LMC0

Refrigerant Precharged
Amount

kg 2

lbs 4.4

Number of maximum connectable indoor
units

10

Net weight

kg 70

lbs 169

Dimensions (WxHxD)

mm 580 × 700 × 500
inch 22.3 x 27.5 x 19.6

Piping
Connections

Liquid Pipes mm(inch) Ø 9.52(3/8) to IDU
Gas Pipes mm(inch) Ø 15.88(5/8) to IDU

Heat Exchanger Module Power Supply :
220-240 V~ 50 Hz

System(HP) 5
Model ARUN050GME0

Refrigerant Precharged
Amount

kg -

lbs -

Number of maximum connectable indoor
units

-

Net weight

kg 89

lbs 198

Dimensions (WxHxD)

mm 1,562 × 460 × 688
inch 61.5 × 18.1 × 27

Piping
Connections

Liquid Pipes mm(inch) Ø 12.7(1/2) to Compressor Module
Gas Pipes mm(inch) Ø 19.05(3/4) to Compressor Module

CAUTION

• The wall thickness of the piping should comply with the relevant
local and national regulations for the designed pressure 3.8MPa

• Since R410A is a mixed refrigerant, the required additional
refrigerant must be charged in its liquid state.
If the refrigerant is charged in its gaseous state, its composition
changes and the system will not work properly.

• Do not place the refrigerant container under the direct rays of
the sun to prevent it from exploding.

• For high-pressure refrigerant, any unapproved pipe must not be
used.

• Do not heat pipes more than necessary to prevent them from
softening.

• Be careful not to install wrongly to minimize economic loss
because it is expensive in comparison with R22.

!

ALTERNATIVE REFRIGERANT R410A

The refrigerant R410A has the property of higher operating pressure in
comparison with R22.
Therefore, all materials have the characteristics of higher resisting
pressure than R22 ones and this characteristic should be also
considered during the installation.
R410A is an azeotrope of R32 and R125 mixed at 50:50, so the ozone
depletion potential (ODP) of R410A is 0.

OUTSIDE UNIT INFORMATION

INSTALLATION PROCESS

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7

ENGLISH

WARNING

Fix the outside unit firmly with anchor bolt or it may fall and hurt
people. (refer to ‘Foundation for installation’)

!

INSTALLATION SPACE : HEAT
EXCHANGER MODULE

• The following values are the least space for installation. If any service
area is needed for service according to field circumstance, obtain
enough service space.

• The unit of values is mm.

Installation Space for Heat Exchanger Module

ab

cd

e

Service Space

(Front Side)

Front side

Top View Front View

[Unit: mm]

[Unit: mm]

600 or more

70 or more

H = 100 or more

Top View

Front View

10 or more

Air discharge

Air Suction

Inspection hole
(600 x 600)

Control box

SELECT THE BEST LOCATION :
HEAT EXCHANGER MODULE

It must be installed indoors.
Ambient design temprature of compressor module and
Heat exchange module is 5~35°C (26°C WB)

The heat exchanger module has the same installation site
requirements as the compressor module, and few additional ones.

Install the air conditioner in the location that satisfies the following
conditions.

• The place shall easily bear a load exceeding four times the Heat
Exchanger Module weight.

• The place shall be able to inspect the Heat Exchanger Module as the
figure.

• The place where the Heat Exchanger Module 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 Compressor Module.

• The place where the Heat Exchanger Module is not affected by an
electrical noise.

• There should not be any heat source or steam near the unit.

INSTALLATION SPACE :
COMPRESSOR MODULE

• The following values are the least space for installation. If any service
area is needed for service according to field circumstance, obtain
enough service space.

• The unit of values is mm.

Installation Space for Compressor Module

SELECT THE BEST LOCATION :
COMPRESSOR MODULE

It must be installed indoors.
Ambient design temprature of compressor module and
Heat exchange module is 5~35°C (26°C WB)

Select space for installing compressor module, which will meet the
following conditions:

• No direct thermal radiation from other heat sources.

• Do not installation where sensitive place the noise

• No exposition to strong wind

• With strength which bears weight of unit

• Note that drain flows out of unit when heating

• With space for air passage and service work shown next

• Because of the possibility of fire, do not install unit to the space
where generation, inflow, stagnation, and leakage of combustible
gas is expected.

• Avoid unit installation in a place where acidic solution and spray
(sulfur) are often used.

• Do not use unit under any special environment where oil, steam and
sulfuric gas exist.

• It is recommended to fence round the compressor module in order
to prevent any person or animal from accessing the compressor
module.

Select installation location considering following conditions to avoid
bad condition when additionally performing defrost operation.

• Install the outside unit at a place well ventilated and having a lot of
sunshine in case of installing the product at a place with a high
humidity in winter (near beach, coast, lake, etc).
(Ex) Rooftop where sunshine always shines.

• Performance of heating will be reduced and preheat time of the
indoor unit may be lengthened in case of installing the outside unit in
winter at following location:

- Shade position with a narrow space

- Location with much moisture in neighboring floor.

- Location with much humidity around.

- Location where ventilation is good. It is recommended to install the
outside unit at a place with a lot of sunshine as possible as.

- Location where water gathers since the floor is not even.

WARNING

Fix the outside unit firmly with anchor bolt or it may fall and hurt
people. (refer to ‘Foundation for installation’)

!

Category Mark Description Installation Space [ mm ]

Compressor

Module

a Right 10 or more
b Left 10 or more
c Rear 10 or more
d Front 500 or more
e Top 200 or more

www.lgcomfortcooling.co.uk

8

CARRYING METHOD

ENGLISH

CAUTION

Be very careful while carrying the product.

•

Do not have only one person carry product if it is more than 20 kg.

• PP bands are used to pack some products. Do not use them as
a mean for transportation because they are dangerous.

• Do not touch heat exchanger fins with your bare hands.
Otherwise you may get a cut in your hands.

• Tear plastic packaging bag and scrap it so that children cannot
play with it. Otherwise plastic packaging bag may suffocate
children to death.

• Place extra cloth or boards in the locations where the casing
comes in contact with the sling to prevent damage.

!

• Fix the unit tightly with bolts as shown below so that unit will not fall
down due to earthquake or gust.

• Use the H-beam support as a base support

• Noise and vibration may occur from the floor or wall since vibration is
transferred through the installation part depending on installation
status. Thus, use anti-vibration materials (cushion pad) fully (The base
pad shall be more than 200mm).

At least 200mm

Unit : mm

200

75

75

200

100

Ⓐ The corner part must be fixed firmly. Otherwise, the support for the

installation may be bent.

Ⓑ Get and use M10 Anchor bolt.
Ⓒ Put Cushion Pad between the outside unit and ground support for

the vibration protection in wide area.

Ⓓ Space for pipes and wiring (Pipes and wirings for bottom side)
Ⓔ H-beam support
Ⓕ Concrete support

WARNING

• Install where it can sufficiently support the weight of the
compressor module.
If the support strength is not enough, the compressor module
may drop and hurt people.

• Install where the compressor module may not fall in strong
wind or earthquake.
If there is a fault in the supporting conditions, the outside unit
may fall and hurt people.

• Please take extra cautions on the supporting strength of the
ground and the passages of the pipe and wiring, when making
the ground support.

!

Foundation for Installation

Front panel

a

cd

b

ARUN050LMC0
a 580
b 530
c 500
d 462
e25

[Unit : mm]

At least 100mm

At least 100mm

At least 100mm

For outdoor units
should not be
supported only
by the corner
supports.

Center of the Unit

At least 100mm

At least 100mm

At least 100mm

Center of the Unit

The location of the Anchor bolts

INSTALLATION : COMPRESSOR
MODULE

• You can install the compressor module directly on the floor or on a
structure. If you want to install on floor, you do not use ancor bolt.

• Install at places where it can endure the weight and vibration/noise
of the compressor module.

• The compressor module supports at the bottom shall have width of
at least 100mm under the Unit’s legs before being fixed.

• The compressor module supports should have minimum height of
200mm.

• Anchor bolts must be inserted at least 75mm.

CARRYING METHOD

• Please transport the product referring to the figure.

• Use only accessories and parts which are of the designated
specification when installing.

Compressor Module.

Heat Exchanger Module.

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ENGLISH

CAUTION

• In case of on the floor you should not have to fix the compressor
module with anchor bolts.

• In case of on the structure you can fix the Compressor module
securely use anchor bolts, nuts and washers to the structure.
The foundation must be larger than the image

• If noise / vibration occurs, install rubber pad under the product

• Be sure to remove the Pallet(Wood Support) of the bottom side
of the compressor module before welding.
Not removing Pallet(Wood Support) causes hazard of fire during
welding.

• When vibration is transmitted to the building, use a vibration
proof rubber (field supply).

Pallet(Wood Support)

- Remove before Installation

!

INSTALLATION : HEAT
EXCHANGER MODULE

- Install the unit above the ceiling correctly.

CASE 1

Position of suspension Bolt

- Apply a joint-canvas between the module and duct to absorb
unnecessary vibration.

CASE 2

- Install the module leaning to a drainage hole side as a figure for easy
water drainage.

Position of console Bolt

- A place where the module will be leveled and that can support the
weight of the unit.

- A place where the module can withstand its vibration.

- A place where service can be easily performed.

Dimension

Chassis

ABCDEFGH I JKL

B8

1680 1565 1160 330 460 580 700 1400 1635 390 445 15

(Unit:mm)

B8 Chassis

M10 Nut

M10 washer

X 4

X 4

M10 Nut

M10 washer

X 4
X 8

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.

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10

ENGLISH

Insulation, others : Insulate the joint and tubes
completely.

Thermal insulation : All thermal insulation must comply with local
requirement.

Heat Exchanger Module

Method connect the refrigerant piping to the
Heat Exchanger Module.

1. Cut the liquid pipe and gas pipe.

2. Burrs removal

- Completely remove all burrs from the cut cross section of
pipe/tube.

- Put the end of the copper tube/pipe to downward direction as you
remove burrs in order to avoid to let burrs drop in the tubing.

3. Wrap the pipe with a wet cloth.

4. Braze the liquid pipe and gas pipe.

5. Remove the wet cloth.

Copper

tube

90°

Slanted Uneven Rough

Pipe

Reamer

Point down

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)

CAUTION

• Tighten the nut and bolt to prevent unit falling

!

Heat Exchanger Module 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.

Method when insatalling the ducting

- Ducting is to be field supplied

- For prevent water from flowing into the Heat exchanger module,
Make sure the ductiong has slopes down

- You Protect the ducting against reverse airflow from wind.

- If the suction ducting or discharge ducting is connected with the
inside air, it might be impossible to reach the desired room
temperature.

- Connect suction ducting and discharge ducting with the outside air.

1 Set anchor

Old building New building

2 Plate washer
3 Spring washer

4 Nut

5 Suspension
bolts

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