LG ARUB060GSS4 INSTALLATION INSTRUCTIONS

MFL69717904

Rev.02_101520

INSTALLATION MANUAL

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.

Original instruction

ENGLISH

РУССКИЙ ЯЗЫК

ITALIANO

УКРАÏНСЬКА

ESPAÑOL

FRANÇAIS

DEUTSCH

ΕΛΛΗΝΙΚΆ

ČEŠTINA

NEDERLANDS

POLSKI

LIMBA ROMÂNĂ

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:

• 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 :

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, explo-

sion, or injury.

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

- There is risk of fire, electric shock, explo-

sion, 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 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 ex-

plosion.

• 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 se-

curely, dust or water may enter the outdoor 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 appropri-

ate 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.

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.

ENGLISH

- 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 outdoor 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.

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 outdoor 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 pro-

ENGLISH

tection against noise.

The inverter equipment, private power genera-

tor, 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.

• Do not install the unit in potentially explosive atmospheres.

Operation

• Do not use the air conditioner in special environments.

Oil, steam, sulfuric smoke, etc. can significantly re-

duce 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 20kg(44lbs).

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 outdoor unit, suspending it at the specified positions on the unit base. Also support the outdoor 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.

• 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 in-

juries.

• 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 con-

• necting 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.

TABLE OF CONTENTS

2 TIPS FOR SAVING ENERGY 2 IMPORTANT SAFETY INSTRUCTIONS 6 INSTALLATION PROCESS 6 OUTDOOR UNITS INFORMATION 6 ALTERNATIVE REFRIGERANT R410A 7 SELECT THE BEST LOCATION 8 INSTALLATION SPACE

9 Air guide work

10 LIFTING METHOD 10 INSTALLATION

10 The location of the Anchor bolts 10 Foundation for Installation 11 Preparation of Piping 12 Plumbing materials and storage methods

13 REFRIGERANT PIPING INSTALLATION

13 Precautions on Pipe connection / Valve operation 13 Installation procedure for HR unit 13 Installation of Outdoor Unit, HR Unit and Indoor Unit Refrigerant Pipe 14 Type of HR Unit 14 Installation of Zoning Control

15 PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT

15 Preparation Work 15 Pipe Drawing Out during Single / Series connection 16 Refrigerant piping system 18 Refrigerant charging 19 Branch pipe Fitting 20 Leak Test and Vacuum drying 21 Vacuum Mode 21 Thermal insulation of refrigerant piping

22 ELECTRICAL WIRING

22 Caution 23 Control box and connecting position of wiring 23 Communication and Power Cables 24 Wiring of main power supply and equipment capacity 24 Field Wiring 25 Checking the setting of outdoor units

25 HR UNIT PCB

25 Setup the switch of HR Unit 27 Automatic Addressing 28 Example of manual valve addressing (Non-Zoning setting) 28 Example of manual valve addressing (Zoning setting) 29 Method of checking the pipe detection result at HR unit 29 Identiﬁcation of Manual Valve ID (Address) 30 Group Number setting

30 TEST RUN

30 Cool & Heat selector 31 Static pressure compensation mode 31 Night Low Noise Function 31 Setting the ODU address 31 Snow removal & rapid defrost 32 Target pressure adjusting 33 Self-Diagnosis Function

35 CAUTION FOR REFRIGERANT LEAK

35 Introduction 35 Checking procedure of limiting concentration

36 INSTALLATION GUIDE AT THE SEASIDE

36 Model Designation 36 Airborne Noise Emission

ENGLISH

The foundation must be level even

Outdoor unit foundation work

Avoid short circuits and ensure sufﬁcient space is allowed for service

Installation of outdoor unit

Refer to automatic addressing ﬂowchart

Automatic addressing and pipe dection of indoor unit

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

) there

must be no drop in pressure.

Airtight test

Multiple core cable must not be used. (suitable cable should be selected)

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 compress for more than 6 hours.

ENGLISH

OUTDOOR UNITS INFORMATIONINSTALLATION PROCESS

CAUTION

• Ratio of the connectable Indoor Units to the Outdoor: 50 ~ 160%

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

• A combination operation over 100% cause to reduce each indoor unit capacity.

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.

CAUTION

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

3.8MPa(551.1psi).

• 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.

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(551.1psi).

• 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.)

Air inlet grille

500mm (19-11/16inch)

SELECT THE BEST LOCATION

Select space for installing outdoor unit, which will meet the following conditions:

• No direct thermal radiation from other heat sources

• No possibility of annoying neighbors by noise from unit

• 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 outdoor unit in order to prevent any person or animal from accessing the outdoor unit.

• If installation site is area of heavy snowfall, then the following directions should be observed.

- Make the foundation as high as possible.

- Fit a snow protection hood.

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

• Install the outdoor 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 outdoor 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

outdoor unit at a place with a lot of sunshine as possible as.

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

When installing the outdoor unit in a place that is constantly exposed to a strong wind like a coast or on a high story of a building, secure a normal fan operation by using a duct or a wind shield.

• Install the unit so that its discharge port faces to the wall of the building. Keep a distance 500mm(19-11/16inch) or more between the unit and the wall surface.

• Supposing the wind direction during the operation season of the air conditioner, install the unit so that the discharge port is set at right angle to the wind direction.

Turn the air outlet side toward the building's wall, fence or windbreak screen.

WARNING

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

Select installation location of the HR unit suitable for following conditions

- Avoid a place where rain may enter since the HR unit is for indoor.

- Sufficient service space must be obtained.

- Refrigerant pipe must not exceed limited length.

- Avoid a place subject to a strong radiation heat from other heat source.

[Unit:mm(inch)]

- Avoid a place where oil spattering, vapor spray or high frequency

ENGLISH

electric noise is expected.

- Install the unit at a place in which it is not affected by operation noise. (Installation within cell such as meeting room etc. may disturb business due to noise.)

• Place where refrigerant piping, drain piping and electrical wiring

works are easy.

PRHR023/PRHR033/PRHR043

500

311

540

150 486 150

218

500

Inspection door (servicing space)

165

PRHR063/PRHR083

809

540

800

218

160

793

Inspection door (servicing space)

160

311

165

300 more

(Servicing space) (Servicing space)

300 more

(Servicing space)

126

147

300 more

(Servicing space) (Servicing space)

300 more

(Servicing space)

147

38992 176

126

389

[Unit : mm]

100 more (Serviceing space)

300 more

100 more (Serviceing space)

450

(Servicing space)

[Unit : mm]

100 more (Serviceing space)

300 more

100 more (Serviceing space)

450

(Servicing space)

176

[Unit : mm]

Description

No. Part Name

Low pressure Gas pipe

connection port High pressure Gas pipe

connection port

PRHR033/PRHR043 PRHR063/PRHR083

Ø28.58 Brazing connection

Ø22.2 Brazing connection

PRHR023

Ø22.2 Brazing connection

Ø19.05 Brazing connection

Ø15.88 Brazing con-

Liquid pipe connection

port

nection (In case of PRHR033,

Ø9.52 Brazing connection

use Ø12.7)

Indoor unit Gas pipe

connection port Indoor unit Liquid pipe

connection port

Ø15.88– Ø12.7 Brazing connection

Ø9.52 – Ø6.35 Brazing connection

Ø15.88– Ø12.7 Brazing connection

Ø9.52 – Ø6.35 Brazing connection

6 Control box - -

7 Hanger metal

NOTE

Suspension bolt M10 or M8

• Be sure to install the inspection door at the control box side.

• If reducers are used, servicing space must be increased equal to reducer's dimension.

For detailed instructions on installing the HR Unit, see the installation manual included with the HR Unit.

100(3-15/16)

or more

1000 (39-1/4)

or more

100(3-15/16)

or more

500(19-5/8)

or less

100(3-15/16) or more

100(3-15/16)

or more

100(3-15/16)

or more

500(19-5/8)

or less

1000 (39-1/4)

or more

150(5-29/32)

or more

100(3-15/16)

or more

150(5-29/32)

or more

100(3-15/16) or more

100(3-15/16)

or more

1000 (39-1/4)

or more

300(11-13/16)

or more

500(19-5/8)

or less

1000 (39-1/4)

or more

100(3-15/16)

or more

100(3-15/16) or more

1000 (39-1/4)

or more

300(11-13/16)

or more

500(19-5/8) or more

500(19-5/8)

or less

1000 (39-1/4)

or more

500(19-5/8) or more

1000 (39-1/4)

or more

00(3-15/16) or more

500(19-5/8) or less

1000 (39-1/4)

or more

1000 (39-1/4)

or more

00(3-15/16)

or more

100(3-15/16)

or more

500(19-5/8)

or more

1000 (39-1/4)

or more

500(19-5/8) or less

250 (9-7/8)

or more

1000 (39-1/4)

or more

ENGLISH

INSTALLATION SPACE

• 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.

In case of obstacles on the suction side

1. Stand alone installation

In case of obstacles on the discharge side

1. Stand alone installation

2. Collective installation

Unit:mm(inch)

In case of obstacles on the suction and the discharge side

Obstacle height of discharge side is higher than the unit

1. Stand alone installation

L > H L > H

Unit:mm(inch)

1000 (39-1/4)

or more

300(11-13/16)

or more

100(3-15/16)

or more

500(19-5/8)

or less

1250(49-1/4)

or more

300(11-13/16)

or more

1000 (39-1/4)

or more

100(3-15/16) or more

100(3-15/16)

or more

500(19-5/8)

or less

500(19-5/8) or less

1000 (39-1/4)

or more

300(11-13/16)

1000 (39-1/4)

or more

300(11-13/16)

or more

100(3-15/16)

or more

1500(59)

or more

300(11-13/16)

or more

500(19-5/8)

or less

1000 (39-1/4)

or more

1500(59)

or more

100(3-15/16)

or more

Less than 20 degrees

350mm (13-25/32inch) or more

Louver pitch 100 mm (3-15/16inch) or more

2. Collective installation

L > H L > H

Obstacle height of discharge side is lower than the unit

1. Stand alone installation

L ≤ HL ≤ H

Unit:mm(inch)

Seasonal wind and cautions in winter

• Install correctly with the prospect of snow or cold temperatures in mind.

• Install the outdoor unit ideally not to come into contact with snow directly. If snow piles up it will freeze to the heat exchanger, and the system will malfunction. Attach a snow hood to prevent any issues.

• The raised support platform must be high enough to allow the unit to remain above possible snow drifts, and must be higher than the maximum anticipated snowfall for the location.

• Remove any snow that piles higher than 100mm on the top of the unit.

- In areas of high wind, do not install the units heat exchanger or discharge fan perpendicular to the wind direction.

Air guide work

In cases where the outdoor unit is installed in an enclosed space, care should be taken to ensure adequate airflow around the product, otherwise failure could occur.

• The operating ratio should be at least 80%

• Louver angle should be 0~20 degree

• Louver pitch should be more than 100mm(3.9inch)

Less than

20 degrees 150mm (5-29/32inch) or more

300mm (11-13/16inch) or more

350mm

350mm (13-25/32inch)

(13-25/32inch) or more

or more

Air guide

Intake area

Air guide duct

Wind speed : 1.5m/s(4.9 ft/s)

20 degrees

Louver pitch

Louver pitch 100 mm

100 mm (3-15/16inch)

(3-15/16inch) or more

or more

ENGLISH

2. Collective installation

L ≤ HL ≤ H

Unit:mm(inch)

Secure minimum intake area

When the intake area is not secured can efficiency drop and products may not be operating

• Minimum intake area (For reference)

Unit : m2(ft2)

Model ARUB060GSS4

Minimum intake area 1.2(15.5)

At least 200mm

(7-7/8 inch)

a be

ENGLISH

INSTALLATIONLIFTING METHOD

• When carrying the suspended, unit pass the ropes between legs of base panel under the unit.

• Always lift the unit with ropes attached at four points so that impact is not applied to the unit.

• Attach the ropes to the unit at an angle of 40° or less.

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

Air outlet grille Intake hole

Corner

Handle

Always hold the unit by the corners, as holding it by the side intake holes on the casing may cause them to deform.

Sub line

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

• The outdoor unit supports at the bottom shall have width of at least 100mm(3-15/16inch) under the Unit’s legs before being fixed.

• The outdoor unit supports should have minimum height of 200mm(77/8inch).

• Anchor bolts must be inserted at least 75mm(2-15/16inch).

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

At least 100mm

(3-15/16inch)

At least 100mm

(3-15/16inch)

At least 100mm

(3-15/16inch)

At least 100mm

(3-15/16inch)

Center of the Unit

At least 100mm

3-15/16inch)

(

Center of the Unit

40° or less

WARNING

CAUTION

Be very careful while carrying the product.

•

Do not have only one person carry product if it is more than 20kg(44lbs).

• 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.

• When carrying in Outdoor Unit, be sure to support it at four points. Carrying in and lifting with 3-point support may make Outdoor Unit unstable, resulting in a fall.

• Use 2 belts of at least 8m(26.2 ft) long.

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

•

Hoist the unit making sure it is being lifted at its center of gravity.

The location of the Anchor bolts

[Unit : mm(inch)]

ARUB060GSS4

a 920(36-7/32) b 618(24-11/32) c 330(13) d 360(14-3/16) e 151(5-15/16)

Foundation for Installation

• 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 200 mm(7-7/8 inch)).

Pallet(Wood Support)

- Remove before Installation

Bar

Copper pipe

Clamp handle

Red arrow mark

Cone

Yoke

Handle

Bar

"A"

Inclined

Inside is shining without scratches.

Smooth all round

Even length

all round

Surface

damaged

Cracked Uneven

thickness

= Improper ﬂaring =

Pipe

Reamer

Point down

Copper

tube

90°

Slanted Uneven Rough

Ⓐ 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 outdoor 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

Spring washer

Frame

H-Beam

75 (3)

100(3-15/16)

WARNING

Nut

Concrete

base

200 (7-7/8)

Anti-vibration

materials

75 (3)

Unit : mm(inch)

Four bolt are required 3 thread ridges

200 (7-7/8)

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

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

• Please take extra cautions on the supporting strength of the ground, water outlet treatment(treatment of the water flowing out of the outdoor unit in operation), and the passages of the pipe and wiring, when making the ground support.

• Do not use tube or pipe for water outlet in the Base pan. Use drainage instead for water outlet. The tube or pipe may freeze and the water may not be drained.

CAUTION

• Be sure to remove the Pallet(Wood Support) of the bottom side of the outdoor unit Base Pan before fixing the bolt. It may cause the unstable state of the outdoor settlement, and may cause freezing of the heat exchanger resulting in abnormal operations.

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

Preparation of Piping

Main cause of gas leakage is defect in flaring work. Carry out correct flaring work in the following procedure.

Cut the pipes and the cable

- Use the accessory piping kit or the pipes purchased locally.

- Measure the distance between the indoor and the outdoor unit.

- Cut the pipes a little longer than measured distance.

- Cut the cable 1500mm(59-1/16inch) longer than the pipe length.

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.

Flaring work

- Carry out flaring work using flaring tool as shown below.

Indoor unit

[kW(Btu/h)]

<5.6(19,100) 12.7(1/2) 6.35(1/4)

<16.0(54,600) 15.88(5/8) 9.52(3/8)

<22.4(76,400) 19.05(3/4) 9.52(3/8)

Firmly hold copper tube in a bar(or die) as indicated dimension in the table above.

Check

- Compare the flared work with figure below.

- If flare is noted to be defective, cut off the flared section and do flaring work again.

Pipe [mm(inch)] "A" [mm(inch)]

Gas Liquid Gas Liquid

0.5~0.8

(0.02~0.03)

0.8~1.0

(0.03~0.04)

1.0~1.3

(0.04~0.05)

0~0.5

(0~0.02)

0.5~0.8

(0.02~0.03)

0.5~0.8

(0.02~0.03)

ENGLISH

If it is necessary to prevent the unit from falling over, install as shown in the figure.

• Prepare all 4 wires as indicated in the drawing

• Unscrew the top plate at the 4 location indicated A and B

• Put the screws through the nooses and screw them back tight

A : Location of the 2 fixation

holes on the front side of the unit

B : Location of the 2 fixation

holes on the rear side of the unit

C : wires

Flare shape and ﬂare nut tightening torque

Precautions when connecting pipes

- See the following table for flare part machining dimensions.

- When connecting the flare nuts, apply refrigerant oil to the inside and outside of the flares and turn them three or four times at first. (Use ester oil or ether oil.) See the following table for tightening torque.(Applying too much torque may

cause the flares to crack.)

- After all the piping has been connected, use nitrogen to perform a gas leak check.

Pipe size

[mm(inch)]

Ø9.52(3/8) 38±4(28±3.0) 12.8(0.5)~13.2(0.52)

Ø12.7(1/2) 55±6(41±4.4) 16.2(0.64)~16.6(0.65)

Ø15.88(5/8) 75±7(55±5.2) 19.3(0.76)~19.7(0.78)

Tightening

Torque[N.m(lbs.ft)]

A [mm(inch)] Flare shape

±2

90°

5°

R=0.4~0.8

Union

Moisture

Dust

Leakage

ENGLISH

CAUTION

• Always use a charge hose for service port connection.

•

After tightening the cap, check that no refrigerant leaks are present

• When loosening a flare nut, always use two wrenches in combination, When connecting the piping, always use a spanner and torque wrench in combination to tighten the flare nut.

• When connecting a flare nut, coat the flare(inner and outer faces) with oil for R410A(PVE) and hand tighten the nut 3 to 4 turns as the initial tightening.

Opening shutoff valve

1 Remove the cap and turn the valve counter clockwise with the

hexagon wrench.

2 Turn it until the shaft stops.

Do not apply excessive force to the shutoff valve. Doing so may break the valve body, as the valve is not a backseat type. Always use the special tool.

3 Make sure to tighten the cap securely.

Closing shutoff valve

Remove the cap and turn the valve clockwise with the hexagon wrench.

2 Securely tighten the valve until the shaft contacts the main body seal. 3 Make sure to tighten the cap securely.

* For the tightening torque, refer to the table on the below.

Tightening torque

Shut off

valve size

[mm(inch)]

Ø6.35(1/4) Ø9.52(3/8)

Ø12.7(1/2)

Ø15.88(5/8)

Ø19.05(3/4)

Ø22.2(7/8) Ø25.4(1.0)

Closed Opened Hexagonal

6.0 ±0.6

(4.4±0.4)

10.0 ±1.0 (7.4±0.7)

12.0 ±1.2 (8.9±0.9)

14.0 ±1.4

(10.3±1.0)

30.0 ±3.0

(22.1±2.2)

Insulation of shutoff valve

Tightening torque N·m(lbs·ft) (Turn clockwise to close)

Shaft(valve body)

4mm

(0.16inch)

5.0 ±0.5

(3.7±0.4)

5mm

(0.24inch)

Cap

(Valve lid)

17.6±2.0

(13.0±1.5)

20.0±2.0

(14.8±1.5)

25.0±2.5

(18.4±1.8)

Service

port

12.7±2

(9.4±1.5)

Flare nut

16±2(12±1.5) 38±4(28±3.0)

55±6

(41±4.4)

75±7

(55±5.1)

110±10

(81.1±7.4)

8mm

(0.31inch)

Gas line piping attached

to unit

25±3.0

(18.5±2.2)

Plumbing materials and storage methods

Pipe must be able to obtain the specified thickness and should be used with low impurities. Also when handling storage, pipe must be careful to prevent a fracture, deformity and wound. Should not be mixed with contaminations such as dust, moisture.

Refrigerant piping on three principles

Drying Cleanliness Airtight

Should be no moisture

Items

- Significant hydrolysis of refrigerant oil

- Degradation of refrigerant oil

- Poor insula’tion of

Cause

the compressor

failure

- Do not cold and warm

- Clogging of EEV, Capillary

No moisture in the pipe

- Until the connection is completed, the plumbing pipe entrance should be strictly controlled.

- Stop plumbing at rainy day.

Coun-

- Pipe entrance

termea-

should be taken side or bottom.

sure

When removal burr after cutting pipe, pipe entrance should be taken down.

- Pipe entrance should be fitted cap when pass through the walls.

inside

No dust inside.

- Degradation of refrigerant oil

- Poor insulation of the compressor

- Do not cold and warm

- Clogging of EEV, Capillary

- No dust in the pipe.

- Until the connection is completed, the plumbing pipe entrance should be strictly controlled.

- Pipe entrance should be taken side or bottom.

- When removal burr after cutting pipe, pipe entrance should be taken down.

- Pipe entrance should be fitted cap when pass through the walls.

There is no refrigerant

leakage

- Gas shortages

- Degradation of refrigerant oil

- Poor insulation of the compressor

- Do not cold and warm

- Airtightness test should be.

- Brazing operations to comply with standards.

- Flare to comply with standards.

- Flange connections to comply with standards.

Use the heat insulation material for the refrigerant piping which has an excellent heat-resistance (over 120°C).

2 Precautions in high humidity circumstance:

This air conditioner has been tested according to the "ISO Conditions with Mist" and confirmed that there is not any default. However, if it is operated for a long time in high humid atmosphere (dew point temperature: more than 23°C), water drops are liable to fall. In this case, add heat insulation material according to the following procedure:

- Heat insulation material to be prepared... EPDM (Ethylene Propylene Diene Methylene)-over 120°C the heat-resistance temperature.

- Add the insulation over 10mm thickness at high humidity environment.

Indoor unit

Fastening band (accessory)

Refrigerant piping

Thermal insulator (accessory)

Nitrogen substitution method

Welding, as when heating without nitrogen substitution a large amount of the oxide film is formed on the internal piping.

The oxide film is a caused by clogging EEV, Capillary, oil hole of accumulator and suction hole of oil pump in compressor.

It prevents normal operation of the compressor. In order to avoid this problem, Welding should be done after replacing

air by nitrogen gas. When welding plumbing pipe, the work is required.

Welding Point

Oxide scale

Note) should not block the outlet side. When the internal pressure in pipe is abo ve the atmospheric pressure, pinhole is o ccurred and it is a leakage cause.

Taping (Should not contain air)

Regulator

Nitrogen gas Pressure

0.02MPa(2.9psi) less

Auxiliary valve

Nitrogen

Refrigerant Charging Port

Liquid pipe High Pressure gas pipe

Low Pressure gas pipe

Hanger metal

Flat washer

Hanging bolt

Gas pipe Ø15.88– Ø12.7 Liquid pipeØ9.52– Ø6.35 Brazing Type

Liquid pipe

High pressure

gas pipe

Low pressurse

gas pipe

(Brazing Type)

CAUTION

1 Always use the nitrogen.(not use oxygen, carbon dioxide, and

a Chevron gas): Please use the following nitrogen pressure

0.02MPa(2.9psi) Oxygen – Promotes oxidative degradation of refrigerant oil. Because it is flammable, it is strictly prohibited to use Carbon dioxide – Degrade the drying characteristics of gas Chevron Gas – Toxic gas occurs when exposed to direct

flame. 2 Always use a pressure reducing valve. 3 Please do not use commercially available antioxidant.

The residual material seems to be the oxide scale is ob-

served. In fact, due to the organic acids generated by oxida-

tion of the alcohol contained in the anti-oxidants, ants nest

corrosion occurs. (causes of organic acid

+ water + temperature)

’

alcohol + copper

REFRIGERANT PIPING INSTALLATION

Precautions on Pipe connection / Valve operation

Pipe connection is done by connecting from the end of the pipe to the branching pipes, and the refrigerant pipe coming out of the outdoor unit is divided at the end to connect to each indoor unit and HR unit. Flare connection for the indoor unit, and welding connection for the outdoor pipe and the branching parts. (Including HR unit)

- Use hexagonal wrench to open/close the valve.

Installation procedure for HR unit

1 Using an insert-hole-in- anchor, hang the hanging bolt. 2 Install a hexagon nut and a flat washer (locally-procured)to the

hanging bolt as shown in the figure in the bottom, and fit the main unit to hang on the hanger metal.

3 After checking with a level that the unit is level, tighten the hexa-

gon nut. * The tilt of the unit should be within ±5° in front/back and left/right.

4 This unit should be installed suspended from ceiling and side A

should always be facing up.

5 Insulate not used pipes completely as shown in the figure.

Six-sided Nut (M10 or M8) Hanger metal

Hanger metal

Flat washer

Flat washer (M10)

Hanging bolt

Hanging bolt (M10 or M8)

Insulation

Installation of Outdoor Unit, HR Unit and Indoor Unit Refrigerant Pipe

3 pipes are connected to the HR unit from the outdoor unit, classified into liquid pipe, low pressure gas pipe and high pressure gas pipe depending on status of refrigerant passing through the pipe.

You must connect 3 pipes from outdoor unit to HR unit. For connection between indoor unit and HR unit, you must connect

both liquid pipe and gas pipe from the HR unit to the indoor unit. In this case, connect them to the indoor unit starting from No.1 connection port of the HR unit (the port number is displayed on ports of the HR unit). Use auxiliary flare as annexed parts in connection to the indoor unit.

Gas pipe

ENGLISH

WARNING

• Always careful not to leak the refrigerant during welding.

• The refrigerant generates poisonous gas harmful to human body

if combusted.

• Do not perform welding in a closed space.

• Be sure to close the cap of the service port to prevent gas leak-

age after the work.

CAUTION

Please block the pipe knock outs of the front and side panels after installing the pipes. (Animals or foreign objects may be brought in to damage wires.)

Low pressure Gas pipe

Liquid pipe

CAUTION

Whenever connecting the indoor units with the HR unit, install the indoor units in numerical order from No.1.

Ex) In case of installing 3 indoor units : No. 1, 2, 3 (O), No. 1, 2, 4 (X),

No.1, 3, 4 (X), No.2, 3, 4 (X).

WARNING

Before brazing work, remove gas in the HR Unit by cutting the three pipes in the small circles on the figure. If not, it may cause injuries. Remove the caps before connecting pipes.

HR Unit

High pressure Gas pipe

Liquid pipe

Gas pipe

Liquid pipe

2 HR Unit

HR Unit

4 3 2 1

(38k) (92k)

(48k)BH(72k)

4 3 2 1

Gas pipe Ø15.88– Ø12.7 Liquid pipeØ9.52– Ø6.35 Brazing Type

Liquid pipe

High pressure

gas pipe

Low pressurse

gas pipe

(Brazing Type)

ENGLISH

Type of HR Unit

Select an HR unit according to the number of the indoor units to be installed. HR units are classified into 3 types by the number of connectable indoor units.

Ex) Installation of 10 indoor units

Consists of HR unit for 8 branches and HR unit for 2 branches.

Installation of Zoning Control

Some indoor unit can be connected to one port of HR unit.

HR unit HR unit

PRHR033(A)(3 branches)PRHR023(A)(2 branches)

PRHR043(A)(4 branches)

PRHR063(A)(6 branches)

PRHR083(A)(8 branches)

Joint Method of HR Unit (Big Duct : ARNU76GB8-, ARNU96GB8-) Joint Method is required when B5/B8 chassis is installed. In Joint

Method, two neighboring outlets of one HR unit are linked by Y branch pipe and connected to one indoor unit.

Zoning control group 1

(Max. 8 Indoor Units)

Changeover under control

WARNING

sealing

Auto changeover

Zoning control group 2

(Max. 8 Indoor Units)

Changeover under control

• A branch pipe of HR unit allows up to 14.5kW(48kBtu/h) based on cooling capacity of the indoor unit. (up to 14.5kW(48kBtu/h) for max installation)

• The maximum total capacity of indoor units connected to a PRHR042(A) HR unit is 58kW(192kBtu/h).

• The maximum number of indoor units connected to a PRHR042(A) HR unit are 32 indoor units. (The Maximum indoor units per a branch pipe of HR unit are 8 indoor units)

• There is not operate “Auto-changeover” & “Mode override” function in the zoning group.

• When there are operating indoor units on cooling(heating) mode, another indoor units aren’t changed on heating(cooling) mode in the zoning group.

For detailed instructions on installing the HR Unit, see the installation manual included with the HR Unit.

HR unit PRHR023(A) PRHR033(A)

PRHR063(A) PRHR083(A)

PRHR043(A)

Low pressure

gas pipe

High pressure

gas pipe

Ø22.2(7/8) Ø28.58(1-1/8) Ø28.58(1-1/8)

Ø19.05(3/4) Ø22.2(7/8) Ø22.2(7/8)

Liquid pipe Ø9.52(3/8) Ø12.7(1/2) Ø15.88(5/8)

[Reducers for indoor unit and HR unit]

Models

Liquid pipe

Indoor unit

reducer

PRHR023(A)

Ø6.35(1/4)OD9.52(3/8)

OD19.05(3/4) Ø15.88(5/8)

Ø6.35(1/4)OD9.52(3/8)

HR unit reducer

PRHR033(A)/

OD15.88(5/8)

PRHR043(A)/

Ø12.7(1/2)

OD22.2(7/8) Ø19.05(3/4) Ø15.88(5/8)

Ø9.52(3/8)

PRHR063(A)/ PRHR083(A)

OD12.7(1/2) Ø9.52(3/8)

OD15.88(5/8) Ø12.7(1/2)

Gas pipe

High pressure

Ø12.7(1/2)

OD12.7(1/2) Ø9.52(3/8)

Unit : mm(inch)

Low pressure

12.7(1/2)

OD15.88(5/8) Ø

OD22.2(7/8) Ø19.05(3/4) Ø15.88(5/8)

OD15.88(5/8) Ø12.7(1/2)

OD28.58(1-1/8) Ø22.2(7/8) Ø19.05(3/4)

OD19.05(3/4) Ø15.88(5/8)

Nitrogen Direction

Wet towel

Removal Area for Liquid/Gas pipe bottom side connections.

Pipe Knock Out for Liquid/Gas pipes

PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT

ENGLISH

Refrigerant Charging Port

- Pipe connections can be done on the front side or on the side according to the installation environments.

- Be sure to let 0.2kgf/cm welding.

- If Nitrogen was not flown during welding, many oxidized membranes may form inside the pipe and disturb the normal operations of valves and condensers.

Front Pipe

Draw Out

Bottom Side Pipe

Draw Out

(0.284lbs/in2) Nitrogen flow in the pipe when

Refrigerant Pipe

Rear Side Pipe Draw Out

Right Side Pipe Draw Out

Nitrogen

Nitrogen Direction

Direction

Taping

Regulator

Valve

Nitrogen

Preparation Work

- Use Knock Outs of Base Pan of the outdoor unit for Left/Right or Bottom pipe drawing outs.

Service Port

Low Pressure gas pipe Liquid pipe

High Pressure gas pipe

Leakage prevention cap

Pipe Drawing Out during Single / Series connection

Method of drawing out pipes on the front side and right side

- Proceed with the pipe work as shown in the below figure for front side and right side pipe drawing out.

- Use the wet towel as shown in the below figure before welding

CAUTION

• Do not give damage to the pipe/base during the Knock Out work.

• Proceed to pipe work after removing burr after Knock Out work.

• Perform sleeve work to prevent damage to the wire when connecting wires using knock Outs.

Remove leakage prevention cap

• Remove the leakage prevention cap attached to the outdoor unit service valve before pipe work.

• Proceed the leakage prevention cap removal as follows:

- Verify whether the liquid/gas pipes are locked.

- Extract remaining refrigerant or air inside using the service port.

- Remove the leakage prevention cap

Pipe Knock Out for Liquid/Gas pipes

Method of drawing out pipes on the rear side

- Proceed with the pipe work as shown in the below figure for rear side pie drawing out.

※Pictures may differ depending on the model.

sealing

"a"

“b”

■ Case 1 ("a") : Maximum height is 15m(49ft) if you install with Y branch.

■ Case 2 ("b") : Maximum height is 5m(16ft) in serial connection of HR units.

ENGLISH

Refrigerant piping system

Refrigerant Pipe Connection

Example : 12 Indoor Units connected

Ⓐ : Outdoor Unit Ⓑ : Y branch Ⓓ : Indoor Unit Ⓖ : Header Ⓗ : HR Unit

Refrigerant pipe diameter from outdoor unit to first branch. (A)

Upward outdoor

unit total capacity

HP Liquid mm(inch)

Ø9.52

(3/8)

Pipe diameter

Low pressure gas

pipe

mm(inch)

Ø19.05

(3/4)

High pressure gas

pipe

mm(inch)

Ø15.88

(5/8)

* If available on site, it use this size. Otherwise it can’t be increased.

Refrigerant pipe diameter from branch to branch (B,C,D)

Downward Indoor Unit total capacity

Liquid pipe [mm(inch)] Gas pipe [mm(inch)]

[kW(Btu/h)]

≤ 5.6(19,100)

Ø6.35(1/4) Ø12.7(1/2)

< 16.0(54,600) Ø9.52(3/8) Ø15.88(5/8)

≤ 22.4(76,400)

Ø9.52(3/8) Ø19.05(3/4)

< 36.4(124,200) Ø9.52(3/8) Ø22.2(7/8)

Total pipe length = A+B+C1+C2+C3+D+a+b+c+d+e+f+g+i+j+k+l+m+n ≤ 300m(984ft)

Longest pipe length *Equivalent pipe length

A+B+C3+D+k ≤150m(492ft) A+B+C3+D+k ≤175m(574ft) Longest pipe length after 1st branch

B+C+D+e ≤ 40m(131ft) Difference in height (Outdoor Unit ÷ Indoor Unit)

H ≤ 50m(164ft) Difference in height (Indoor Unit ÷ Indoor Unit)

h ≤ 15m(49ft)

"a", "b"

Difference in height(HR unit ÷ HR unit) a ≤ 15m(49ft) , b ≤ 5m(16ft)

WARNING

• Refer to the HR unit PCB part for the valve group control setting.

• It is recommended that difference in pipe lengths between an HR unit and indoor units, for example difference in length of a, b, c, and d, be minimized. The larger difference in pipe lengths, the more different performance between indoor units.

* If the large capacity indoor units (Over 5 HP; using over

Ø15.88(5/8)/9.52(3/8) are installed, it should be used the Valve Group setting

• * : Assume equivalent pipe length of Y branch to be 500mm(195/8inch), that of header to be 1000mm(39-1/4inch), calculation purpose

• It is recommended that indoor unit is installed at lower position than the header.

WARNING

When the any one (or both) of below conditions are satisfied, the diameter of main pipe (A) must be increased according to below table.

- The equivalent length between outdoor unit and the farthest in-

door unit is 90m(295ft) or more (Liquid, High pressure gas pipes and Low pressure gas pipes are increased)

- The level difference (Outdoor unit ↔ Indoor unit) is 50m(164ft) or

more (Only liquid pipe is increased)

Refrigerant pipe diameter from outdoor unit to first branch. (A)

Upward

outdoor unit

total capacity

Liquid

mm(inch)

Ø9.52

(3/8)

Pipe diameter

Low pres-

sure gas

pipe

mm(inch)

Ø19.05

(3/4)

High pres-

sure gas

pipe

mm(inch)

Ø15.88

(5/8)

Pipe diameter when pipe

length is ≥ 90m(295 ft)

Low pres-

Liquid

mm(inch)

sure gas

pipe

mm(inch)

Ø 12.7

(1/2)

Ø 22.2

(7/8)

High pres-

sure gas

pipe

mm(inch)

Ø 19.05

(3/4)

Pattern 1

Pattern 2

Pattern 3

HR1

14.5kW

(48kBtu/h)

14.5kW

(48kBtu/h)

14.5kW

(48kBtu/h)

14.5kW

(48kBtu/h)

234567

HR2

2.1kW

(7kBtu/h)

2.1kW

(7kBtu/h)

2.1kW

(7kBtu/h)

2.1kW

(7kBtu/h)

2.1kW

(7kBtu/h)

7.25kW

(24kBtu/h)

7.25kW

(24kBtu/h)

3 4

HR1

1 2 3 4

Pattern 4

1 2 3 4

• The maximum total capacity of indoor units is 58kW(192 kBtu/h).

• The maximum total capacity of a branch pipe of HR unit is 14.5kW(48 kBtu/h).

• Impossible installation : Head branch pipe → HR unit

• Impossible installation : HR unit → Head branch pipe → Y and Head branch pipe.

HR1

14.5kW

(48kBtu/h)

3.63kW

(12kBtu/h)

3.63kW

(12kBtu/h)

3.63kW

(12kBtu/h)

3.63kW

(12kBtu/h)

14.5kW

(48kBtu/h)

14.5kW

(48kBtu/h)

14.5kW

(48kBtu/h)

Pattern 5

HR1

1 2

HR2

3 4

Pattern 6

12 345

14.5kW

(48kBtu/h)

7.25kW

(24kBtu/h)

7.25kW

(24kBtu/h)

3.63kW

(12kBtu/h)

3.63kW

(12kBtu/h)

7.25kW

(24kBtu/h)

14.5kW

(48kBtu/h)

14.5kW

(48kBtu/h)

14.5kW

(48kBtu/h)

Pattern 7

Pattern 8

HR1

1 2

• * : Serial connection of HR units : Capacity sum of indoor units ≤ 192 kBtu/h

• * : Maximum indoor units per a branch are 8 indoor units

HR2

3 4

HR3

5 6

HR1

1 2

HR2

3 4 5 6 7 8

14.5kW

(48kBtu/h)

14.5kW

(48kBtu/h)

14.5kW

(48kBtu/h)

14.5kW

(48kBtu/h)

14.5kW

(48kBtu/h)

14.5kW

(48kBtu/h)

14.5kW

(48kBtu/h)

14.5kW

(48kBtu/h)

3.63kW

(12kBtu/h)

3.63kW

(12kBtu/h)

3.63kW

(12kBtu/h)

3.63kW

(12kBtu/h)

7.25kW

(24kBtu/h)

7.25kW

(24kBtu/h)

Y branch, Header and HR unit connection pattern

ENGLISH

Indoor Unit Y Branch pipe

Outdoor

Unit

• Pipe installation from outdoor units to HR units : 3 pipes(Low pressure Gas pipe, High pressure Gas pipe, Liquid pipe)

• Pipe installation from HR units to indoor units : 2 pipes(Gas pipe, Liquid pipe)

Low pressure Gas pipe

High pressure Gas pipe

Liquid pipe

Gas pipe

HR1

Liquid pipe

Head Branch pipe

Indoor

Unit

Liquid pipe

High Pressure gas pipe

Low Pressure gas pipe

ENGLISH

• Keep the 40m(131ft) distance from the first branch to the farthest indoor.

1) under 40m(131ft)

Attach the additional refrigerant table of IDU.

5m(16ft)

Y branch

Indoor

Keep the sum of indoor capacity under 58kW(192 kBtu/h).

Indoor

Unit

Keep the sum of indoor capacity under 58kW(192 kBtu/h).

Indoor

Unit

1) under 40m(131ft)

Indoor

Unit

Indoor

Unit

Indoor

Unit

Indoor

Unit

Indoor

Unit

Indoor

Unit

Indoor

Unit

Indoor Unit Connection

Indoor Unit connecting pipe from branch (a,b,c,d,e,f)

Indoor Unit capacity

[kW(Btu/h)]

≤ 5.6(19,100)

Liquid pipe [mm(inch)]

Gas pipe [mm(inch)]

Ø6.35(1/4) Ø12.7(1/2) < 16.0(54,600) Ø9.52(3/8) Ø15.88(5/8) < 22.4(76,400) Ø9.52(3/8) Ø19.05(3/4) < 28.0(95,900) Ø9.52(3/8) Ø22.2(7/8)

CAUTION

• Bending radius should be at least twice the diameter

500mm

(19-5/8inch)

or more

500mm

(19-5/8inch)

or more

of the pipe.

• Bend pipe after 500mm (19-5/8inch) or more from branch(or header). Do not bend U type. It may cause Performance unsatisfactory or noise.

The amount of Refrigerant

The calculation of the additional charge should take into account the length of pipe and CF(correction Factor) value of indoor unit.

15m(49ft)

WARNING

• Regulation for refrigerant leakage : the amount of refrigerant leakage should satisfy the following

equation for human safety.

Total amount of refrigerant in the system

Volume of the room at which Indoor Unit of

the least capacity is installed

If the above equation can not be satisfied, then follow the following steps.

• Selection of air conditioning system: select one of the next

- Installation of effective opening part

- Reconfirmation of Outdoor Unit capacity and piping length

- Reduction of the amount of refrigerant

- Installation of 2 or more security device (alarm for gas leakage)

• Change Indoor Unit type :

installation position should be over 2m(6.6ft) from the floor (Wall mounted type ’ Cassette type)

• Adoption of ventilation system : choose ordinary ventilation system or building ventilation sys-

tem

• Limitation in piping work : Prepare for earthquake and thermal stress

Refrigerant charging

Ⓐ Manifold Gauge Ⓑ Low pressure side Handle Ⓒ High pressure side Handle

≤0.44kg/m

(0.028lbs/ft3)

Additional charge(kg) = Total liquid pipe : Ø25.4 mm (1.0 inch) x

+ Total liquid pipe : Ø22.2 mm (7/8 inch) x

+ Total liquid pipe : Ø19.05 mm (3/4 inch) x

+ Total liquid pipe : Ø15.88 mm (5/8 inch) x

+ Total liquid pipe : Ø12.7 mm (1/2inch) x

+ Total liquid pipe : Ø9.52 mm (3/8inch) x

+ Total liquid pipe : Ø6.35 mm (1/4 inch) x

+ Number of installed HR unit x

+ CF value of indoor unit (kg)

0.480 kg/m (0.323 lbs/ft)

0.354 kg/m (0.238 lbs/ft)

0.266 kg/m (0.179 lbs/ft)

0.173 kg/m (0.116 lbs/ft)

0.118 kg/m (0.079 lbs/ft)

0.061 kg/m (0.041 lbs/ft)

0.022 kg/m (0.015 lbs/ft)

0.5 kg (1.1 lbs) ※6 & 8 Branches Model :

1.0kg/EA (2.2 lbs/EA)

Amount refrigerant of Indoor units Example) 4Way Ceiling Cassette 14.5kW -1ea, Ceiling concealed

Duct 7.3kW-2ea, Wall Mounted 2.3kW-4ea CF = 0.64 × 1 + 0.26 × 2 + 0.24 × 4 = 2.12kg(4.67lbs)

WARNING

• Pipe to be vacuumed : gas pipe, liquid pipe

• If the refrigerant amount is not exact, it may not operate properly.

• If additionally bottled refrigerant amount is over 10%, condenser burst or insufficient indoor unit performance may be caused.

Horizontal plane

View from point B in the direction of the arrow

I.D19.05(3/4)

O.D15.88(5/8)

I.D12.7(1/2)

I.D15.88(5/8)

I.D12.7(1/2)

292(11-1/2)

281(11-1/16)

(2-29/32)

70(2-3/4)

I.D12.7(1/2)

292(11-1/2)

281(11-1/16)

(2-29/32)

70(2-3/4)

I.D6.35(1/4)

I.D6.35(1/4) I.D9.52(3/8 )

I.D9.52(3/8)

O.D9.52(3/8)

3 1 2

I.D19.05(3/4)

I.D25.4(1)

I.D22.2(7/8)

I.D19.05(3/4) I.D12.7(1/2)I.D15.88(5/8)

(3-9/32)

I.D19.05(3/4)

I.D12.7

(1/2)

I.D15.88(5/8)

70(2-3/4)

O.D19.05(3/4) I.D22.2(7/8)

O.D25.4(1)

I.D28.58(1-1/8)

80(3-5/32)

I.D25.4(1)

110(4-11/32)

O.D19.05(3/4)

I.D22.2(7/8)

413(16-1/4)

390(15-11/32)

I.D12.7(1/2)

(2-29/32)

332(13-1/16)

321(12-5/8)

I.D6.35(1/4)

I.D9.52(3/8)

1 3

I.D12.7

(1/2)

376(14-13/16)

404(15-29/32)

120(4-23/32) 120(4-23/32)

90(3-17/32)

I.D15.88(5/8)

I.D19.05(3/4)

O.D19.05(3/4)

(3-25/32)

I.D22.2(7/8)

O.D22.2 (7/8)

I.D34.9(1-3/8)

I.D28.58(1-1/8)

O.D31.8(1-1/4)I.D31.8(1-1/4)

I.D31.8(1-1/4)

3 2

I.D15.88(5/8)

I.D15.88(5/8)I.D12.7(1/2)

I.D12.7(1/2)

O.D12.7(1/2)

70(2-3/4)

110(4-11/32)

371(14-19/32)

394(15-1/2)

(3-9/32)

I.D19.05(3/4)

I.D6.35(1/4)I.D9.52(3/8) I.D9.52(3/ 8 )

471(18-17/32)

517(20-11/32)

125

(4-29/32)

I.D41.3(1-5/8)

I.D38.1(1-1/2)

I.D22.2

(7/8)

I.D34.9(1-3/8)

I.D34.9 (1-3/8)

I.D28.58(1-1/8)

I.D15.88(5/8)

120(4-23/32)

I.D19.05(3/4)

O.D22.2 (7/8)

I.D41.3(1-5/8)

O.D38.1(1-1/2)

90(3-17/32)

130(5-1/8)

I.D41.3 (1-5/8)

I.D38.1(1-1/2)

O.D34.9(1-3/8)

I.D12.7(1/2)

I.D22.2(7/8)

O.D28.58(1-1/8)

70(2-3/4)

O.D15.88(5/8)

120(4-23/32)

I.D19.05(3/4)

2 3 3

I.D15.88(5/8) I.D19.05(3/4)

I.D22.2(7/8)

I.D15.88(5/8)

I.D19.05(3/4)

I.D22.2(7/8)

I.D12.7

(1/2)

(3-25/32)

I.D15.88(5/8)

I.D19.05(3/4)

41616-3/8)

444(17-15/32)

I.D12.7(1/2)

O.D12.7(1/2)

O.D15.88(5/8)

O.D19.05(3/4)

I.D22.2(7/8)

I.D6.35(1/4)

I.D9.52(3/8)

110(4-11/32)110(4-11/32) 80(3-5/32)

115(4-17/32)

100(3-15/16)

I.D12.7(1/2)

70(2-3/4)

120(4-23/32)

O.D.38.1(1-1/2)

I.D.34.9(1-3/8)

I.D.28.58(1-1/8)

O.D.28.58(1-1/8)

O.D.44.48(1-3/4)

175(6-7/8)

I.D.53.98(2-1/4) I.D.25.4(1)

I.D.53.98(2-1/4) I.D41.3(1-5/8)

I.D41.3(1-5/8)

I.D38.1(1-1/2)

I.D.44.48(1-3/4)

420(16-17/32)

490(19-9/32)

134

(5-17/32)

3 3

I.D31.8(1-1/4)

O.D22.2(7/8)

I.D22.2(7/8)

I.D15.88(5/8)

O.D15.88(5/8)

I.D19.05(3/4)

I.D12.7(1/2) O.D12.7(1/2) I.D6.35(1/4)

I.D9.52(3/8)

110(4-11/32) 110(4-11/32)

I.D.25.4(1)

346(13-5/8) 379(14-29/32)

(3-25/32)

3 32

I.D22.2(7/8)

I.D15.88(5/8)

O.D19.05(3/4)

I.D19.05(3/4)

I.D19.05

(3/4)

Branch pipe Fitting

Y branch

Ⓐ

To Branch Piping or Indoor Unit

Ⓑ To Outdoor Unit

• Ensure that the branch pipes are attached horizontally or vertically (see the diagram below.)

Horizontal plane

Facing

downwards

Within +/- 10°

Viewed from point A in direction of arrow

Within ±3° Within ±3°

• There is no limitation on the joint mounting configuration.

• If the diameter of the refrigerant piping selected by the procedures described is different from the size of the joint, the connecting section should be cut with a pipe cutter.

• Branch pipe should be insulated with the insulator in each kit.

Tape (ﬁeld supply)

Facing

upwards

• Header should be insulated with the insulator in each kit.

Insulate the header using the insulation material attached to the branch pipe kit as shown in the ﬁgure.

• Joints between branch and pipe should be sealed with the tape included in each kit.

Tape

Insulator

Insulator of ﬁeld pipe

• Any cap pipe should be insulated using the insulator provided with each kit and then taped as described above.

Insulator for cap pipe

ENGLISH

Insulator

(included with kit)

Liquid and gas pipe joints

Insulator for ﬁeld piping

Header

Ⓐ To Outdoor Unit Ⓑ To Indoor Unit

• The indoor unit having larger capacity must be installed closer to Ⓐ than smaller one.

• If the diameter of the refrigerant piping selected by the procedures described is different from the size of the joint, the connecting section should be cut with a pipe cutter.

• When the number of pipes to be connected is smaller than the number of header branches, install a cap to the unconnected branches.

• When the number of indoor units to be connected to the branch pipes is less than the number of branch pipes available for connection then cap pipes should be fitted to the surplus branches.

Cap pipe

Y branch pipe

Tape

[Unit:mm(inch)]

Models Gas pipe Liquid pipe

ARBLN

01621

ARBLN

03321

ARBLN

07121

• Fit branch pipe lie in a horizontal plane.

ARBLN

14521

Pinched pipe

ARBLN

23220

ID12.7(1/2)

ID15.88(5/8)

360(14-5/32)

120(4-23/32)

ID12.7(1/2)

ID15.88(5/8)

150 (5-29/32)

120 (4-23/32)

ID15.88(5/8)ID19.05(3/4)

150 (5-29/32)

120 (4-23/32)

ID9.52(3/8)

ID6.35(1/4)

360(14-5/32)

ID6.35(1/4)

120(4-23/32)

ID9.52(3/8)

ID9.52(3/8)ID12.7(1/2)

120(4-23/32)

150 (5-29/32)

120 (4-23/32)

ID15.88(5/8)

540(21-1/4)

ID15.88(5/8)

ID12.7(1/2)

ID15.88(5/8)ID19.05(3/4)

ID12.7(1/2)

150 (5-29/32)

120 (4-23/32)

120(4-23/32)

ID9.52(3/8)

ID9.52(3/8)ID12.7(1/2)

540(21-1/4)

ID6.35(1/4)

ID9.52(3/8)

ID6.35(1/4)

150 (5-29/32)

120 (4-23/32)

ID15.88(5/8)

ID15.88(5/8)ID15.88(5/8)

ID12.7(1/2)ID12.7(1/2)

ID15.88(5/8)

ID12.7(1/2)

400(15-23/32)

160(6-5/16)

ID19.05(3/4)

ID22.2(7/8)ID28.58(1-1/8)

ID25.4(1)

150 (5-29/32)

120 (4-23/32)

ID9.52(3/8)ID9.52(3/8)

ID6.35(1/4)ID6.35(1/4)

ID9.52(3/8)

ID6.35(1/4)

360(14-5/32)

ID6.35(1/4)

120(4-23/32)

ID9.52(3/8)

ID9.52(3/8)ID12.7(1/2)

ID9.52(3/8)

ID6.35(1/4)

ID9.52(3/8)

ID6.35(1/4)

ID15.88(5/8)

ID12.7(1/2)

150 (5-29/32)

120 (4-23/32)

ID15.88(5/8)

ID12.7(1/2)

160(6-5/16)

ID19.05(3/4)

ID22.2(7/8)ID28.58(1-1/8) ID25.4(1)

580(22-27/32)

ID9.52(3/8)

ID6.35(1/4)

150 (5-29/32)

120 (4-23/32)

ID9.52(3/8)ID9.52(3/8)

ID6.35(1/4)ID6.35(1/4)

ID9.52(3/8)

ID6.35(1/4)

120(4-23/32)

ID9.52(3/8)

ID9.52(3/8)ID12.7(1/2)

700(27-9/16)

ID6.35(1/4)

ID9.52(3/8)

ID6.35(1/4)

ID9.52(3/8)

ID6.35(1/4)

ID15.88(5/8)

ID12.7(1/2)

150 (5-29/32)

120 (4-23/32)

ID15.88(5/8)

ID12.7(1/2)

160(6-5/16)

ID19.05(3/4)

ID22.2(7/8)ID28.58(1-1/8) ID25.4(1)

760(29-28/32)

ID9.52(3/8)

ID6.35(1/4)

ID9.52(3/8)

ID6.35(1/4)

150 (5-29/32)

120 (4-23/32)

ID9.52(3/8)

ID6.35(1/4)

120(4-23/32)

ID9.52(3/8) ID9.52(3/8)ID12.7(1/2)

ID6.35(1/4)

720(28-11/32)

ID9.52(3/8)

ID6.35(1/4)

ID9.52(3/8)

ID6.35(1/4)

ID9.52(3/8)

ID6.35(1/4)

ID15.88(5/8)

ID12.7(1/2)

150 (5-29/32)

120 (4-23/32)

ID15.88(5/8)

ID12.7(1/2)

ID19.05(3/4)

ID22.2(7/8)ID28.58(1-1/8) ID25.4(1)

775(30-17/32)

182(7-5/32)

ID9.52(3/8)

ID6.35(1/4)

ID9.52(3/8)

ID6.35(1/4)

150 (5-29/32)

120 (4-23/32)

ID9.52(3/8)ID9.52(3/8)

ID6.35(1/4)ID6.35(1/4)

ID9.52(3/8)

ID6.35(1/4)

ID9.52(3/8) ID9.52(3/8)ID12.7(1/2)

ID6.35(1/4)

700(27-9/16)

60*9=540(21-1/2)

107(4-7/32)

ENGLISH

Header

Models Gas pipe Liquid pipe

4 branch

ARBL054

7 branch

ARBL057

4 branch

ARBL104

7 branch

ARBL107

10 branch

ARBL1010

[Unit:mm(inch)]

WARNING

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.

NOTE

If the ambient temperature differs between the time when pressure is applied and when the pressure drop is checked, apply the following correction factor

There is a pressure change of approximately 0.01Mpa(1.5psi) for each 33.8°F of temperature difference.

Correction = (Temp. at the time of pressurization – Temp. at the time of

check) X 0.1 For example: Temperature at the time of pressurization

3.8MPa(551psi) is 80.6°F 24 hour later : 3.73MPa(541psi), 68°F In this case the pressure drop of 0.07MPa(10psi) is because of temperature drop And hence there is no leakage in pipe occurred.

CAUTION

To prevent the nitrogen from entering the refrigeration system in the liquid state, the top of the cylinder must be at higher position than the bottom when you pressurize the system.

Usually the cylinder is used in a vertical standing position.

10 branch

ARBL2010

Leak Test and Vacuum drying

Leak test Leak test should be made by pressurizing nitrogen gas to 3.8

MPa(551.1psi). If the pressure does not drop for 24 hours, the system passes the test. If the pressure drops, check where the nitrogen leaks. For the test method, refer to the following figure. (Make a test with the service valves closed. Be also sure to pressurize liquid pipe, gas pipe and high/low pressure common pipe)

The test result can be judged good if the pressure has not be reduced after leaving for about one day after completion of nitrogen gas pressurization.

Nitrogen gas cylinder

Outdoor unit

Gas pipe

High Pressure

Liquide pipe

Gas pipe

Low Pressure

HR unit

Liquid side

Gas side

Indoor unit

Vacuum Vacuum drying should be made from the service port provided on the outdoor

unit’s service valve to the vacuum pump commonly used for liquid pipe, gas pipe and high/low pressure common pipe. (Make Vacuum from liquid pipe, gas pipe and high/low pressure common pipe with the service valve closed.) * Never perform air purging using refrigerant.

• Vacuum drying: Use a vacuum pump that can evacuate to -100.7kPa (-14.6psi, 5Torr, -755mmHg).

- Evacuate the system from the liquid and gas pipes with a vacuum

pump for over 2 hrs and bring the system to -100.7kPa(-14.6psi). After maintaining system under that condition for over 1 hr, confirm the vacuum gauge rises. The system may contain moisture or leak.

- Following should be executed if there is a possibility of moisture re-

maining inside the pipe. (Rainwater may enter the pipe during work in the rainy season or over a long period of time) After evacuating the system for 2 hrs, give pressure to the system to

0.05MPa(7.3psi)(vacuum break) with nitrogen gas and then evacuate it again with the vacuum pump for 1hr to -100.7kPa(-14.6psi)(vacuum drying). If the system cannot be evacuated to -100.7kPa(-14.6psi) within 2 hrs, repeat the steps of vacuum break and its drying. Finally, check if the vacuum gauge does not rise or not, after maintaining the system in vacuum for 1 hr.

Outdoor unit

Vacuum pump

Scale Use a graviometer. (One that can measure down to 0.1kg(0.22lbs)). If you are unable to prepare such a high-precision gravimeter you may use a charge cylinder.

Gas pipe

High Pressure

Liquide pipe

Gas pipe

Low Pressure

HR unit

Liquid side

Gas side

Indoor unit

Communication lines

Separation

Power lines

DIP-SWITCH

SW01D (reset)

SW04C (x:cancel)

7-Segment

SW03C (▶:forward)

SW02C (◀:bac kward)

SW01C (●:confirm)

WARNING

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.

NOTE

Always add an appropriate amount of refrigerant. (For the refrigerant additional charge) Too much or too little refrigerant will cause trouble. To use the Vacuum Mode (If the Vacuum mode is set, all valves of Indoor units and Outdoor units will be opened.)

WARNING

When installing and moving the air conditioner to another site, recharge after perfect evacuation.

- If a different refrigerant or air is mixed with the original refrigerant, the refrigerant cycle may malfunction and the unit may be damaged.

Vacuum Mode

This function is used for creating vacuum in the system after compressor replacement, ODU parts replacement or IDU addition/replacement.

Vacuum mode setting method

Thermal insulation of refrigerant piping

Be sure to give insulation work to refrigerant piping by covering liquid pipe and gas pipe separately with enough thickness heat-resistant polyethylene, so that no gap is observed in the joint between indoor unit and insulating material, and insulating materials themselves. When insulation work is insufficient, there is a possibility of condensation drip, etc. Pay special attention to insulation work to ceiling plenum.

Heat insulation

material

Outer

covering

Ⓐ Heat insulation material Ⓑ Pipe Ⓒ Outer covering(Wind the connection part and cutting part of heat in-

sulation material with a finishing tape.)

NOTE

When using polyethylene cover as covering material, asphalt roofing shall not be required.

Bad example

• Do not insulate gas or low pressure pipe and liquid or highpressure pipe together.

Adhesive + Heat - resistant poly-

ethylene foam + Adhesive tape

Indoor Vinyl tape

Floor ex-

Outdoor

Ⓐ Liquid pipe Ⓑ Gas pipe ⓒ Power lines ⓓ

Finishing tape

ⓔ

Insulating material

ⓕ

Communication lines

Water-proof hemp cloth +

posed

Bronze asphalt

Water-proof hemp cloth +

Zinc plate + Oily paint

ENGLISH

Service PCB DIP switch on : No.5

Select the mode using ‘▶’, ‘◀’ Button :

“SVC” Push the ‘●’ button

Select the Function using ‘▶’, ‘◀’ Button :

“Se3” Push the ‘●’ button

Start the vacuum mode : “VACC”

ODU V/V open

ODU EEV open

IDU EEV open

Vacuum mode off method

Dip switch off and push the reset button on Service PCB

CAUTION

ODU operation stops during vacuum mode. Compressor can't operate.

• Be sure to fully insulate connecting portion.

Ⓐ

These parts are not insulated.

Good example

Ⓐ Liquid pipe Ⓑ Gas pipe ⓒ Power lines ⓓ

Insulating material

ⓔ

Communication lines

1m1m

Remote control

Indoor

Unit

Outdoor Unit

Indoor

Unit

Indoor

Unit

Indoor

Unit

Outdoor Unit

Remote control

Indoor

Unit

Indoor

Unit

Remote control

Indoor

Unit

Indoor

Unit

Round pressure terminal

Power cable

ENGLISH

Penetrations

Inner wall (concealed) Outer wall Outer wall (exposed)

Floor (fireproofing)

Penetrating portion on fire

Roof pipe shaft

limit and boundary wall

Ⓐ Sleeve Ⓑ Heat insulating material Ⓒ Lagging Ⓓ Caulking material Ⓔ Band Ⓕ Waterproofing layer Ⓖ Sleeve with edge Ⓗ Lagging material Ⓘ Mortar or other incombustible caulking Ⓙ Incombustible heat insulation material

When filling a gap with mortar, cover the penetration part with steel plate so that the insulation material will not be caved in. For this part, use incombustible materials for both insulation and covering. (Vinyl covering should not be used.)

ELECTRICAL WIRING

Caution

- Follow ordinance of your governmental organization for technical standard related to electrical equipment, wiring regulations and guidance of each electric power company.

WARNING

Be sure to have authorized electrical engineers do the electric work using special circuits in accordance with regulations and this installation manual. If power supply circuit has a lack of capacity or electric work deficiency, it may cause an electric shock or fire.

Install the Outdoor Unit communication cable away from the power

source wiring so that it is not affected by electric noise from the power source. (Do not run it through the same conduit.)

- Be sure to provide designated grounding work to Outdoor Unit.

2-Core Shield Cable

Multi-Core Cable

CAUTION

• Use the 2-core shield cables for communication cables. Never use them together with power cables.

• The conductive shielding layer of cable should be grounded to the metal part of both units.

• Never use multi-core cable

• As this unit is equipped with an inverter, to install a phase leading capacitor not only will deteriorate power factor improvement effect, but also may cause capacitor abnormal heating. Therefore, never install a phase leading capacitor.

• Make sure that the power unbalance ratio is not greater than 2%. If it is greater the units lifespan will be reduced.

Precautions when laying power wiring

Use round pressure terminals for connections to the power terminal block.

CAUTION

Be sure to correct the outdoor unit to earth. Do not connect ground wire to any gas pipe, liquid pipe, lightening rod or telephone earth line. If earth is incomplete, it may cause an electric shock.

- Give some allowance to wiring for electrical part box of Indoor and Outdoor Units, because the box is sometimes removed at the time of service work.

- Never connect the main power source to terminal block of communication cable. If connected, electrical parts will be burnt out.

- Use 2-core shield cable for communication cable.( mark in the figure below) If communication cable of different systems are wired with the same multiplecore cable, the resultant poor transmitting and receiving will cause erroneous operations. ( mark in the figure below)

- Only the communication cable specified should be connected to the terminal block for Outdoor Unit communication.

When none are available, follow the instructions below.

- Do not connect wiring of different thicknesses to the power terminal block. (Slack in the power wiring may cause abnormal heat.)

- When connecting cable which is the same thickness, do as shown in the figure below.

- For wiring, use the designated power cable and connect firmly, then secure to prevent outside pressure being exerted on the terminal block.

- Use an appropriate screwdriver for tightening the terinal screws. A screwdriver with a small head will strip the head and make proper tighterning impossible.

- Over-tightening the terminal screws may break them.

Control box and connecting position of wiring

- Remove all of the screws at side panel and remove the panel by pulling it forward.

- Connect communication cables between outdoor unit and indoor units through the terminal block.

- When the central control system is connected to the outdoor unit, a dedicated PCB must be connected between them.

- When connecting communication cable between outdoor unit and indoor units with shielded cable, connect the shield ground to the earth screw.

Side panel

WARNING

The temperature sensor for outdoor air should not be exposed to direct sunlight.

- Provide an appropriate cover to intercept direct sunlight.

Communication and Power Cables

Communication cable

- Types : shielding cable

- Cross section : 1.0~1.5mm

- Maximum allowable temperature: 140°F

- Maximum allowable cable length: under 1,000m(3,281ft)

Remote control cable

- Types : 3-core cable

Central control cable

Product type Cable type Diameter

ACP

AC Smart

AC Ez

Separation of communication and power cables

- If communication and power cables are run alongside each other then there is a strong likelihood of operational faults developing due to interference in the signal wiring caused by electrostatic and electromagnetic coupling. The tables below indicates our recommendation as to appropriate spacing of communication and power cables where these are to be run side by side

(1.55x10-3~2.32x10-3in2)

2-core cable

(Shielding cable)

2-core cable

(Shielding cable)

4-core cable

(Shielding cable)

1.0~1.5mm

(1.55x10-3~2.32x10-3in2)

1.0~1.5mm

(1.55x10-3~2.32x10-3in2)

1.0~1.5mm

(1.55x10-3~2.32x10-3in2)

ENGLISH

Indoor communication PCB

(Inside the control box)

Main PCB Terminal block

(Take care of the phase Sequence of 1-phase 2-wire power system)

6 HP

※Pictures may differ depending on the model.

Current capacity of power cable Spacing

10A 300mm(11-13/16 inch)

100V or more

NOTE

• The figures are based on assumed length of parallel cabling up to 100m(328ft). For length in excess of 100m(328ft) the figures will have to be recalculated in direct proportion to the additional length of cable involved.

• If the power supply waveform continues to exhibit some distortion the recommended spacing in the table should be increased.

- If the cable are laid inside conduits then the following point

must also be taken into account when grouping various cable together for introduction into the conduits

- Power cable(including power supply to air conditioner) and

communication cables must not be laid inside the same

- In the same way, when grouping the power wires and com-

munication cables should not be bunched together.

CAUTION

If apparatus is not properly earthed then there is always a risk of electric shocks, the earthing of the apparatus must be carried out by a qualified person.

50A 500mm(19-11/16 inch)

100A 1,000mm(39-3/8 inch)

Exceed 100A 1,500mm(59-1/16 inch)

ODU-IDU Communication cable

Hold Communication cable

Insulation sleeves attachment

Power/ Ground cable

View A

Communication cable

Over 50mm gap

Fix ﬁrmly not to be displaced

Hold power cable

Communication cable

Main power Terminal block

Ground wire

Hold power cable

Over

50mm gap

Power/

Ground cable

Communication cable

ENGLISH

Wiring of main power supply and equipment capacity

- Use a separate power supply for the Outdoor Unit and Indoor Unit.

- Bear in mind ambient conditions (ambient temperature,direct sunlight, rain water,etc.) when proceeding with the wiring and connections.

- The cable size is the minimum value for metal conduit wiring. The power cord size should be 1 rank thicker taking into account the line voltage drops. Make sure the power-supply voltage does not drop more than 10%.

- Specific wiring requirements should adhere to the wiring regulations of the region.

- Power supply cords of parts of appliances for outdoor use should not be lighter than polychloroprene sheathed flexible cord.

- Don't install an individual switch or electrical outlet to disconnect each of indoor unit separately from the power supply.

WARNING

• Follow ordinance of your governmental organization for technical standard related to electrical equipment, wiring regulations and guidance of each electric power company.

• Make sure to use specified cables for connections so that no external force is imparted to terminal connections. If connections are not fixed firmly, it may cause heating or fire.

• Make sure to use the appropriate type of overcurrent protection switch. Note that generated overcurrent may include some amount of direct current.

Example) Connection of transmission wire

[BUS type] [STAR type]

- Connection of communication cable must be installed like below figure between indoor unit to outdoor unit.

- Abnormal operation can be caused by communication defect, when connection of communication cable is installed like below figure(STAR type).

HR unit

Example) Connection of power and communication cable

6 HP

Right side Front side

CAUTION

• Some installation site may require attachment of an earth leakage breaker. If no earth leakage breaker is installed, it may cause an electric shock.

• Do not use anything other than breaker and fuse with correct capacity. Using fuse and wire or copper wire with too large capacity may cause a malfunction of unit or fire.

Field Wiring

Single outdoor unit

Power supply switch (Switch fuse : ELCB)

HR unit

Power supply

1 Phase

220-240V, 50Hz

220V, 60Hz

(Main Switch)

Power supply switch (Switch fuse)

Power supply

1 Phase

220-240V, 50Hz

220V, 60Hz

WARNING

•

Indoor Unit ground wires are required for preventing electrical shock accident during current leakage, Communication disorder by noise effect and motor current leakage (without connection to pipe).

• Don't install an individual switch or electrical outlet to disconnect each of indoor unit separately from the power supply.

• Install the main switch that can interrupt all the power sources in an integrated manner because this system consists of the equipment utilizing the multiple power sources.

• If there exists the possibility of reversed phase, lose phase, momentary blackout or the power goes on and off while the product is operating, attach a reversed phase protection circuit locally. Running the product in reversed phase may break the compressor and other parts.

: Single phase of power supply line[L1(L),L2(N)] : Communication line (3 line): Wired remote control : Communication line (2 shield line):

Between Indoor Unit and Outdoor Unit

Pull Box(Installer Option)

Branch #1~4

Bypass

(from left)

SC EEV

ڸڹںڻڼڽھڿ

Branch #3,4

High/Low (from top)

Branch #1,2

High/Low (from top)

Branch #5~8

Bypass

(from left)

Branch #7,8

High/Low (from top)

Branch #5,6

High/Low (from top)

7-SEG

Main PCB (2EA, same P/No)

7-SEG

Liquid

Bypass

Valve

- SW02E : Use only SW No.5

- SW01E : Branch #5~8 (from SW No.1)

- SW01C

- SW01D/SW01C/ SW02B/SW01B/SW02E

- SW01E : Branch #1~4

(from SW No.1)

Branch No.

Checking the setting of outdoor units

Checking according to dip switch setting

- You can check the setting values of the outdoor unit from the 7 segment LED. The dip switch setting should be changed when the power is OFF.

Checking the initial display The number is sequentially appeared at the 7 segment in 5 seconds

after applying the power. This number represents the setting condition. (For example, represents R410A 10HP)

• Initial display order

Order No Note

①

②

③ ④

• Example) ARUB060GSS4

① ② ③ ④

07 3 22 1

4~12 Model capacity

1 Cooling only 2 Heat pump 3 Heat Recovery

22 220V

1 Standard

ENGLISH

HR UNIT PCB

For detailed instructions on installing the HR Unit, see the installation manual included with the HR Unit.

CAUTION

Be sure to turn off outdoor unit power before installation.

Main PCB (Master)

Main PCB (Slave)

* Number from left in sequence for less-than-8 branch model. ** PRHR043 / PRHR033 / PRHR023 : Master Only

Setup the switch of HR Unit

SW Function

Selection of the method for

pipe detection

Dip

Rotary

Push

SW02E

(8pin Dip

SW)

SW01E

(4pin Dip

SW)

SW01D

(Left)

SW01C

(Right)

SW02B

(Left)

SW01B

(Right)

Selection of Master/Slave

Main PCB

Setting the Zoning Control

Selection of the No. of con-

nected branches

Selection of the valve to ad-

dress

Selection of the Valve Group

Control

Manual addressing of zoning

indoor units

Setting to address HR units

Increase in the digit of 10

Increase in the digit of 1

Main function of SW02E

ON S/W Selection

No.1 Method for pipe detection of an HR Unit (Auto/Manual) No.2

No. of connected branchesNo.3 No.4 No.5 Master/Slave (Main PCB) Setting No.6 EEPROM factory initialization (4,5,6)

No.7

No.8

Use only in factory production

(preset to "OFF")

Use only in factory production

(preset to "OFF")

Zoning setting ("ON")

Slave

Master

SW01E

Master

SW01E

ENGLISH

1) Selection of the method for pipe detection of an HR unit (Auto/Manual)

Auto Manual

Switch No.1 Off Switch No.1 On

2) Selection of Master/Slave Main PCB

Master Slave

Switch No.5 Off Switch No.5 On

NOTE

Do not turn on any SW02E on Slave Main PCB except No.5.

* Master Only

Valve Group

SW01D

Setting

Valve Group

SW01D

Setting

Not control 0 No. 5,6/7,8 Valve Control 8 No. 1,2 Valve Control 1 No. 1,2/5,6 Valve Control 9 No. 2,3 Valve Control 2 No. 1,2/7,8 Valve Control A No. 3,4 Valve Control 3 No. 3,4/5,6 Valve Control B No. 5,6 Valve Control 4 No. 3,4/7,8 Valve Control C No. 6,7 Valve Control 5 No. 7,8 Valve Control 6

No. 1,2/3,4 Valve Control 7

NOTE

No. 1,2/3,4/5,6 Valve Control No. 1,2/3,4/6,7 Valve Control No. 1,2/3,4/7,8 Valve Control

D E F

If the large capacity indoor units are installed, below Y branch pipe should be used.

3) Setting the zoning control

SW02E setting SW01E setting

* Master Only

Normal

control

* Master Only

Zoning control

Turn the dip switch of the zoning branch on.

EX) Branch 1,2 are

zoning control.

4) Selection of the No. of connected branches

1 branch

Connected

2 branches Connected

3 branches Connected

4 branches Connected

5 branch

Connected

6 branch

Connected

7 branch

Connected

8 branch

Connected

h Each model is shipped with the switches No.2, 3, 4 pre-adjusted as

above in the factory.

WARNING

If you want to use a “Model” for “No. of using branch(es)” HR Unit after closing the “Closing pipe No.”, set the dip switch for “No. of using branch(es)” HR Unit.

Ex) If you want to use a PRHR083 for 4 branches HR Unit after

closing the 5~8th pipes, set the dip switch for 4 branches HR Unit.

Main function of SW01D

1) Selection of the Valve Group Control

NOTE

Use the Valve Group Control when 2 branches are connected with only 1 indoor unit which has higher capacity than 61 kBTU.

* Master Only

h Y branch pipe

Models

Low Pressure

Gas Pipe

Liquid pipe

High Pressure

Gas Pipe

I.D22.2

I.D25.4

I.D19.05

I.D25.4

I.D19.05

I.D22.2

390

413

I.D9.52

I.D12.7

421

444

I.D15.88

I.D22.2

I.D19.05

ARBLB03321

I.D12.7

I.D9.52(3/8)

321 332

I.D15.88

O.D19.05

I.D12.7

I.D9.52

3 2

I.D22.2

I.D6.35

O.D15.88

110

[Unit : mm(inch)]

O.D19.05

I.D22.2

110

O.D15.88

I.D28.58

O.D25.4

I.D12.7

I.D9.52

I.D12.7

SW01C (Rotary S/W for addressing HR unit)

Must be set to '0' when installing only one HR unit. When installing multiple HR units, address the HR units with sequen-

tially increasing numbers starting from '0'. Maximum 16 HR Units can be installed.

Ex) Installation of 3 HR units

AB AB AB

* Master Only

SW01B/SW01C/SW01E/SW02B (Dip S/W and push S/W for Manual pipe detection)

- Set the address of the valve of the HR unit to the central control address of the connected indoor unit.

- SW01E: selection of the valve to address SW02B: increase in the digit of 10 of valve address SW01B: increase in the last digit of valve address SW01C: Manual addressing of zoning indoor units (use for Zoning setting)

- Prerequisite for Manual pipe detection : central control address of each indoor unit must be preset differently at its wired remote control.

I.D25.4

• Automatic addressing setting end Numbers of indoor unit connection set whose addressing is completed are indicated for 30seconds on 7-segment LED after completing setting

Indoor address number is displayed on wired remote control or indoor unit display window. It is not an error message, will disappeared when on/off button is pressed on remote control ex) Display of 01, 02, ..., 15 means connection of 15 indoor units and Automatic addressing is completed normally.

Automatic addressing start

Waiting 3 minutes

Power On

Press RED Button

for 5 seconds.

(SW01C)

7-segment LED = 88

Don’t press RED Button

(SW01C)

Waiting about 2~7 minutes

7-segment LED

YES

NO Check the connections

of communication cable

= 88

SW02B

SW01B SW01C

SW01E

S/W No. Setup

No.1

No.2

No.3

No.4

SW02B

SW01B

* Use for Zoning setting

SW01C

Manual addressing of valve #1 (Master) / #5 (Slave)

Manual addressing of valve #2 (Master) / #6 (Slave)

Manual addressing of valve #3 (Master) / #7 (Slave)

Manual addressing of valve #4 (Master) / #8 (Slave)

Increase in the digit of 10 of valve address

Increase in the last digit of valve address

Manual addressing of zoning indoor units

1) Normal setting (Non-Zoning setting) ex) Manual pipe detection of Valve #1, 6.

Master

OFF

SW01E

SW #1 On : Select Valve #1

Slave

OFF

SW01E

SW #2 On : Select Valve #6

Master

SW02B SW01B

Input the central control

address of Indoor unit

Slave

SW02B SW01B

Input the central control

address of Indoor unit

2) Zoning setting

Master

OFF

SW01E

SW #1 Off : Finish Valve #1

Slave

OFF

SW01E

SW #2 Off : Finish Valve #6

Automatic Addressing

The address of indoor units would be set by Automatic Addressing

- Wait for 3 minutes after supplying power. (Master and Slave outdoor units, indoor units)

- Press RED button of the outdoor units for 5 seconds. (SW01C)

- A “88” is indicated on 7-segment LED of the outdoor unit PCB.

- For completing addressing, 2~7 minutes are required depending on numbers of connected indoor units

Numbers of connected indoor units whose addressing is completed are indicated for 30 seconds on 7-segment LED of the outdoor unit PCB

- After completing addressing, address of each indoor unit is indicated on the wired remote control display window. (CH01, CH02, CH03, ……, CH06 : Indicated as numbers of connected indoor units)

[Heat Recovery (SERVICE PCB)]

7-Segment

SW01C(●:confirm)

SW02C(◀:back ward)

SW03C(▶:forward)

CAUTION

• In replacement of the indoor unit PCB, always perform Automatic addressing setting again (At that time, please check about using Independent power module to any indoor unit.)

• If power supply is not applied to the indoor unit, operation error occur.

• Automatic Addressing is only possible on the master Unit.

• Automatic Addressing has to be performed after 3 minutes to improve communication.

SW01D( reset )

SW04C(x:cancel)

DIP-SWITCH

ENGLISH

NOTE

Use the Zoning Control when install two or more indoor units at 1 branch of HR Unit. The indoor units controlled by Zoning Control can be selected collectively as the cooling/heating mode.

ex) Manual pipe detection of Valve #5 with three zoning indoor units,

#6 without zoning unit.

Slave

OFF

SW01E

SW #1 On : Select Valve #5

Slave

SW01C

SW02B

indoor unit, input the central

control address of indoor unit.

Slave

OFF

SW01E

SW #2 On : Select Valve #6

Slave

SW02B SW01B

After selecting No.1 zoning

indoor unit, input the central

control address of indoor unit.

SW01C

Slave

SW02B

After selecting No.2 zoning indoor unit, input the central

control address of indoor unit.

SW01B

Slave

Setting SW01C to ‘0’After selecting No.3 zoning

SW01C

Slave

OFF

SW #1 Off : Finish Valve #5

Slave

SW02B SW01B

Input the central control

address of Indoor unit

Slave

OFF

SW #2 Off : Finish Valve #6

SW01C

SW01E

The Procedure of Automatic Addressing

SW01B

7-SEG SW01E

SW02B SW01B

7-SEG SW01E

SW02B SW01B

7-SEG SW01E

SW02B SW01B

7-SEG SW01E

SW02B SW01B

7-SEG SW01E

SW02B SW01B

ENGLISH

Flow chart of auto addressing for pipe detection

Confirmation of indoor unit address setting

Turn No.1 of SW02E of HR unit PCB off.

Confirm that the setting of No.2, 3 of SW02E corresponds with the number of indoor units.

Reset the power of HR unit PCB

Master unit PCB DIP switch on : No.5

Select the mode using ‘ȯ’, ‘ȭ’ Button : “Idu” Push the ‘Ɨ’ button

Select the “Id 5” function using ‘ȯ’, ‘ȭ’ Button :“Ath” or ”Atc” Push the ‘Ɨ’ button. Outdoor temperature is over 15°C(59°F) : “Ath” Using Outdoor temperature is below 15°C(59°F) : “Atc” Using

Select the mode using ‘ȯ’, ‘ȭ’ Button : “Idu” Push the ‘Ɨ’ button

Select the “Id 6” function using ‘ȯ’, ‘ȭ’ Button :“StA” Push the ‘Ɨ’ button

88' is displayed on 7-SEG of the outdoor unit main PCB

Outdoor unit is operated for 5~60 minutes.

Is the pipe

setting condition

satisfied during the operation of

indoor unit?

YES

The number of indoor units detected is displayed for 30 seconds on the outdoor unit PCB after outdoor unit stopped

Are the number

of indoor units connected to the

outdoor unit wiring and displayed

one equal?

YES

Completion of auto pipe detection

Display error on outdoor unit PCB Display error on HR unit PCB

Outdoor unit PCB : HR ⇒ HR unit number HR unit : '200'

Check the HR unit and indoor unit

Pipe detection error occur after 30 seconds.

Check the installation of pipe of outdoor, indoor, HR unit

Retry auto pipe detection after checking trouble

Incompletion of auto pipe detection

※It is possible to be generated mode changing noise of heating and

cooling which is normal. There is no mode changing noise at normal operation.

⇒

Valve number

Example of manual valve addressing (NonZoning setting)

(In case that an indoor unit of central control address "11" is connected to a valve #1 of an HR unit)

- Prerequisite for manual valve addressing: central control address of each indoor unit must be preset differently at its wired remote control.

No. Display and setup Setup and Contents

- Operation: None

- Display: None

- Operation: Turn dip S/W No.1 on to address valve #1

- Display: Existing value saved in EEPROM is displayed in 7-SEG.

- Operation: Set the digit of 10 to the number in Group High data of the wired remote control connected to the corresponding indoor unit to the valve #1 by pressing left tack S/W.

- Display: Digit increasing with the times of pressing tack S/W is displayed in left 7-SEG

- Operation: Set the digit of 1 to the number in Group Low data of the wired remote control connected to the corresponding indoor unit to the valve #1 by pressing right tack S/W.

- Display: Digit increasing with the times of pressing tack S/W is displayed in right 7-SEG

Flow chart of manual addressing for pipe detection

Execute in case of Auto pipe detection failure

Turn No.1 of SW02E of HR unit PCB on.

Reset the power of HR unit PCB.

Enter the central control address into each indoor unit using its wired remote control.

On the HR unit PCB, manually set address of each valve of the HR unit to the central control address of the indoor unit connected to the valve.

Reset the power of outdoor unit PCB.

7-Segment

SW01C(●:confirm)

SW02C (◀:backward)

SW03C (▶:forward)

SW01D(reset)

SW04C(x:cancel)

DIP-SWITCH

Wait for about 5 minutes.

The number of the indoor units installed is displayed. Ex)HR

⇒

The number of the indoor

Are the number

of indoor units connected to the

outdoor unit and displayed one

equal?

YES

Completion of manual pipe detection

Check the central control address of indoor and HR unit.

Make sure that reset the outdoor unit power when changing the central control unit

- Operation: Turn dip S/W No.1 off to save the address of

valve #1

- Display: "11" displayed in 7-SEG disappears

- Above setup must be done for all HR unit valves.

- The valve that is not connected with any indoor unit should be addressed with any other number than used address numbers of the valves connected with indoor units. (The valves does not work if the address numbers are same.)

Example of manual valve addressing (Zoning setting)

(In case that an indoor unit of central control address “11”, “12” is connected to a valve #1 of an HR unit)

Zoning control is connecting 2 or more indoor units at one pipe of HR unit. In case of Zoning control, in order to set controls with multiple indoor units connection uses the rotary switch. Namely, only the rotary switch changes from same valve set condition and set indoor units connection.

1) On dip switch of the corresponding valves and sets the rotary

switch at 0.

2) Setting the number with tact switch.

3) In case of addition of indoor units to same port, increases 1 with the

rotary switch and sets number with tact switch.

4) In case of checking the number which the corresponding valve is

stored, turn on dip switch and set the number of rotary switch.

5) Indoor units set available 8 per a port(rotary switch 0~7), in case of

setting above of 8 with rotary switch, it will display error.

6) Setting the rotary switch on original condition(HR unit number set

conditions) after all finishing a piping setting.

7-SEG SW01E

SW02B SW01B

SW01C

7-SEG SW01E

SW02B SW01B

SW01C

7-SEG SW01E

SW02B SW01B

SW01C

7-SEG SW01E

SW02B SW01B

SW01C

7-SEG SW01E

SW02B SW01B

SW01C

7-SEG SW01E

SW02B SW01B

SW01C

7-SEG SW01E

SW02B SW01B

SW01C

DIP-SWITCH

SW01D(reset)

SW04C(x:cancel)

7-Segment

SW03C (▶:forward)

SW02C (◀:backward)

SW01C(●:confirm)

7-SEG SW01E

7) The rotary switch set value of above number of indoor units which is connected with FF and prevents a malfunction. (Example: The case where 3 indoor units is connected in piping 1, sets from rotary switch 0,1,2 and 3,4,5,6,7 with FF set)

- Prerequisite for manual valve addressing: central control address of

each indoor unit must be preset differently at its wired remote control.

No. Display and setup Setup and Contents

- Operation: None

- Display: None

- Operation : Turn dip S/W No.1 on to ad-

dress valve #1

- Display : Existing value saved in EEPROM is displayed in 7-SEG.

- Operation : Set the digit of 10(1) to the

number in Group High data of the wired remote control connected to the corre-

sponding indoor unit to the valve #1 by pressing left tack S/W.

- Display : Digit increasing with the times

of pressing tack S/W is displayed in left 7-SEG.

Method of checking the pipe detection result at HR unit

In case that an indoor unit of central control address "11" is connected to a valve #1 of an HR unit

No. Display and setup Setup and Contents

- Operation: Turn dip S/W No.1 on.

- Display: "11" is displayed in 7-SEG

- Operation: Turn dip S/W No.1 off.

- 7-SEG disappeared

Identiﬁcation of Manual Valve ID (Address)

No. Display and setup Setup and Contents

- Operation: more than 2 dip switches

turned on.

- Display: "Er" is displayed in 7-SEG

ENGLISH

- Operation : SW01C : 1

- Display : Display former value.

- Operation : Setting No. using SW02B

and SW01B, SW01C : 1

- Display : Display setting value.

- Operation : Turn dip S/W No.1 off to save

the address of valve #1

- Display : "11" displayed in 7-SEG disap-

pears.

- Operation : Return valve of addressing

HR unit.

- Display : None

- Above setup must be done for all HR unit valves.

- The valve that is not connected with any indoor unit should be addressed with any other number than used address numbers of the valves connected with indoor units.(The valves does not work if the address numbers are same.)

Setting the function Select the mode/function/option/value using ‘▶’, ‘◀’ Button and con-

firm that using the ‘●’ button after dip switch No.5 is turned on.

ODU.B ODU.A IDU.B IDU.A CEN.B CEN. A DRY1 DRY2 GND 12V

B(D) A(C)

Valve (04)

EX)

Valve (03) Valve (02) Valve (01)

Indoor unit (04) Indoor unit (03) Indoor unit (02) Indoor unit (01)

Central control address

HR unit

Switch (TOP)

Switch (Bottom)

Left side

Right side

ENGLISH

Mode Function Option Value Action

Content

Display1

Cool & Heat

Static pres-

Installation

rapid defrost

Content

sure compensation

Night low

Snow re-

adjusting

Selector

noise

ODU

address

moval &

Target

pressure

Display2

Content Display3

op1~

oFF

op2

op1~

oFF

op3

op1~o

oFF

p12

op1~

oFF

op3

op1~

oFF

op3

Content Display4

Selected

the option

Selected

the option

Selected

the option

0~255

Selected

the option

Selected

the option

Implement Display5

Change

set the

value

the set

value

Change

the set

value

Change

the set

value

Change

the set

value

Change

the set

value

Change

the set

value

- -

Blank

Remarks

Save in

EEPROM

Save in

EEPROM

Save in

EEPROM

Save in

EEPROM

Save in

EEPROM

Save in

EEPROM

WARNING

• Valve address and central control address of its corresponding indoor unit should be set identical in manual addressing.

* Functions save in EEPROM will be kept continuously, though the

system power was reset.

* Dip switch 3 can be OFF except when installing the only 4 series in-

door units (named ARNU***4).

Group Number setting

Group Number setting for Indoor Units

- Confirm the power of whole system(Indoor Unit, Outdoor Unit) is OFF, otherwise turn off.

- The communication cables connected to CEN.A and CEN.B terminal should be connected to central control of Outdoor Unit with care for their polarity (A-A, B-B ).

- Turn the whole system on.

- Set the group and Indoor Unit number with a wired remote control.

- To control several sets of Indoor Units into a group, set the group ID from 0 to F for this purpose.

Outdoor Units (Main PCB)

Example) Group number setting

1 F

Group Indoor unit

TEST RUN

Cool & Heat selector

Mode setting method

Service PCB DIP switch on : No.5

Select the mode using ‘▶’, ‘◀’ Button :

“Func” Push the ‘●’ button

Select the Function using ‘▶’, ‘◀’ Button :

“Fn1” Push the ‘●’ button

Select the Option using ‘▶’, ‘◀’ Button :

“oFF”,“op1”,“op2” Push the ‘●’ button

Cool & Heat Selection mode is set

Function setting

Switch control Function

Switch(TOP) Switch(Bottom)

Right Left Not operate Cooling Cooling Right Right Not operate Heating Heating

Left - Not operate Fan mode Off

oFF op1(mode) op2(mode)

1stnumber indicate the group number 2nd number point out indoor unit number

Group recognizing the central controller

No.0 group (00~0F) No.1 group (10~1F) No.2 group (20~2F) No.3 group (30~3F) No.4 group (40~4F) No.5 group (50~5F) No.6 group (60~6F) No.7 group (70~7F) No.8 group (80~8F) No.9 group (90~9F) No. A group (A0~AF) No. B group (B0~BF) No. C group (C0~CF) No. D group (D0~DF) No. E group (E0~EF) No. F group (F0~FF)

CAUTION

• Ask an authorized technician to setting a function.

• If do not use a function, set an off-mode.

• If use a function, first install a Cool & Heat selector.

Static pressure compensation mode

This function secures the air flow rate of ODU, in case static pressure has been applied like using duct at fan discharge of ODU.

Static pressure compensation mode setting method

Service PCB DIP switch on : No.5

Select the mode using ‘▶’, ‘◀’ Button :

“Func” Push the ‘●’ button

Select the Function using ‘▶’, ‘◀’ Button :

“Fn2” Push the ‘●’ button

Select the Option using ‘▶’, ‘◀’ Button :

“op1~op3” Push the ‘●’ button

Start the Static pressure compensation mode :

Save the selected option value in EEPROM

FAN Maximum RPM of each step

Model ARUB060GSS4

OP1 850

Max.RPM

OP2 850

OP3 1000

CAUTION

• Request installer to set the function during installation.

• If ODU RPM changes, cooling capacity may go down.

Setting the ODU address

Mode setting method

Service PCB DIP switch on : No.5

Select the mode using ‘▶’, ‘◀’ Button :

“Func” Push the ‘●’ button

Select the Function using ‘▶’, ‘◀’ Button :

“Fn5” Push the ‘●’ button

Select the Option using ‘▶’, ‘◀’ Button :

“0” ~ “255” Push the ‘●’ button

ODU address is set

CAUTION

• Ask an authorized technician to setting a function.

• If use a function, first install a Central controller.

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Night Low Noise Function

In cooling mode, this function makes the ODU fan operate at low RPM to reduce the fan noise of ODU at night which has low cooling load.

Night low noise function setting method

Service PCB DIP switch on : No.5

Select the mode using ‘▶’, ‘◀’ Button :

“Func” Push the ‘●’ button

Select the Function using ‘▶’, ‘◀’ Button :

“Fn3” Push the ‘●’ button

Select the Option using ‘▶’, ‘◀’ Button :

“op1~op15” Push the ‘●’ button

Start the Night low noise function :

Save the selected option value in EEPROM

Time Settings

Step Judgement Time(Hr) Operation Time(Hr)

op1 8 9 op2 6.5 10.5 op3 5 12 op4 8 9 op5 6.5 10.5 op6 5 12 op7 8 9 op8 6.5 10.5

op9 5 12 op10 continuous operation op11 continuous operation op12 continuous operation op13 6.5 10.5 op14 6.5 10.5 op15 6.5 10.5

Snow removal & rapid defrost

Mode setting method

Service PCB DIP switch on : No.5

Select the mode using ‘▶’, ‘◀’ Button :

“Func” Push the ‘●’ button

Select the Function using ‘▶’, ‘◀’ Button :

“Fn6” Push the ‘●’ button

Select the Option using ‘▶’, ‘◀’ Button :

“oFF”,“op1” ~ “op3” Push the ‘●’ button

Mode is set

Mode setting

setting Mode

oFF Not setting op1 Snow removal mode op2 Rapid defrost mode op3 Snow removal mode. + Rapid defrost mode.

CAUTION

• Ask an authorised technician to set up this function

• If you do not want to use this function, simply set off-mode

ENGLISH

Target pressure adjusting

Mode setting method

Service unit PCB DIP switch on : No.5

Select the mode using ‘▶’, ‘◀’ Button :

“Func” Push the ‘●’ button

Select the Function using ‘▶’, ‘◀’ Button :

“Fn8” Push the ‘●’ button

Select the Option using ‘▶’, ‘◀’ Button :

“HEAT” , “COOL” Push the ‘●’ button

Select the Option using ‘▶’, ‘◀’ Button :

“oFF “, “ op1 “ ~ “op7 “ Push the ‘●’ button

Target pressure is set

Setting

Mode Low Pressure (kpa) High pressure (kpa)

oFF 804 2990

op1 699 3121

op2 739 2827

op3 843 2696

op4 908 2565

op5 961 2435

op6 1026 2304

op7 804 2990

CAUTION

• Ask an authorized technician to setting a function.

• If do not use a function, set an off-mode.

• Change a power consumption or capacity.

Self-Diagnosis Function

Error Indicator

- This function indicates types of failure in self-diagnosis and occurrence of failure for air condition.

- Error mark is displayed on display window of indoor units and wired remote controller, and 7-segment LED of outdoor unit control board as shown in the table.

- If more than two troubles occur simultaneously, lower number of error code is first displayed.

- After error occurrence, if error is released, error LED is also released simultaneously.

Error Display 1st,2nd,3rd LED of 7-segment indicates error number, 4th LED indicates unit number. Ex)

Error No.

* Refer to the Indoor manual for some Indoor Error code.

Display Title Cause of Error

0 1 - Air temperature sensor of indoor unit Air temperature sensor of indoor unit is open or short

0 2 - Inlet pipe temperature sensor of indoor unit Inlet pipe temperature sensor of indoor unit is open or short

0 3 -

0 4 - Drain pump Malfunction of drain pump

0 5 -

0 6 - Outlet pipe temperature sensor of indoor unit Outlet pipe temperature sensor of indoor unit is open or short

Indoor unit related error

0 9 - Indoor EEPROM Error

1 0 - Poor fan motor operation Disconnecting the fan motor connector/Failure of indoor fan motor lock

1 1 -

2 1 * Outdoor Unit Inverter Compressor IPM Fault Outdoor Unit Inverter Compressor Drive IPM Fault

2 2 * Inverter Board Input Over Current(RMS) of Outdoor Unit Outdoor Unit Inverter Board Input Current excess (RMS)

2 3 * Outdoor Unit Inverter Compressor DC link Low Voltage

2 4 * Outdoor Unit High Pressure Switch System is turned off by Outdoor Unit high pressure switch.

2 5 * Outdoor Unit Input Voltage High/ Low Voltage

2 6 * Outdoor Unit Inverter Compressor Start Failure

2 9 *

3 2 *

3 4 *

3 5 *

36*

Outdoor unit related error

40*

41*

42*

43*

44*

45*

46*

50*

51*

52*

53*

57 -

Communication error : wired remote controller ÷ indoor unit

Communication error : outdoor unit ÷ indoor unit

Communication error, Indoor unit ↔ Outdoor unit

Outdoor Unit Inverter Compressor Over Current Outdoor Unit Inverter Compressor Fault or Drive Fault

Outdoor Unit Inverter Compressor1 High Discharge Temperature

High Pressure of Outdoor Unit High Pressure of Outdoor Unit

Low Pressure of Outdoor Unit Low Pressure of Outdoor Unit

Outdoor Unit Low Compression Ratio Limited Outdoor Unit Low Compression Ratio Limited

Outdoor Unit Inverter Compressor CT Sensor Fault Outdoor Unit Inverter Compressor CT Sensor open or short

Outdoor Unit Inverter Compressor1 Discharge Temperature Sensor Fault

Outdoor Unit Low Pressure Sensor Fault Outdoor Unit Low Pressure Sensor open or short

Outdoor Unit High Pressure Sensor Fault Outdoor Unit High Pressure Sensor open or short

Outdoor Unit Air Temperature Sensor Fault Outdoor Unit Air Temperature Sensor open or short

Outdoor Unit Heat Exchanger Temperature Sensor (Front side) Fault

Outdoor Unit Suction Temperature Sensor Fault Outdoor Unit Suction Temperature Sensor open or short

Omitting connection of R, S, T power of Outdoor Unit Omitting connection of outdoor unit

Excessive capacity of indoor units

Communication error : inverter PCB ’ Main PCB

Communication error : indoor unit ’ Main PCB of Outdoor Unit

Communication error : Main PCB ’ inverter PCB

Repeat

Error No. of Unit

Error No. of Compressor

Failing to receive wired remote controller signal in indoor unit PCB

Failing to receive outdoor unit signal in indoor unit PCB

In case when the serial number marked on EEPROM of Indoor unit is 0 or FFFFFF

Failing to receive signal in indoor unit

DC charging is not performed at Outdoor Unit after starting relay turn on.

Outdoor Unit input voltage is over 289V or below 73V(ARUB***BTE4) Outdoor Unit input voltage is over 506V or below 414V(ARUB***DTE4)

The First Start Failure by Outdoor Unit Inverter Compressor Abnormality

Outdoor Unit Inverter Compressor1 High Discharge Temperature

Outdoor Unit Inverter Compressor Discharge Temperature Sensor open or short

Outdoor Unit Heat Exchanger Temperature Sensor(Front side) open or short

Excessive connection of indoor units compared to capacity of Outdoor Unit

Failing to receive inverter signal at main PCB of Outdoor Unit

Failing to receive indoor unit signal at main PCB of Outdoor Unit .

Failing to receive signal main PCB at inverter PCB of Outdoor Unit

ENGLISH

Display Title Cause of Error

6 0 *

6 2 *

6 5 *

6 7 *

7 1 *

7 5 *

7 6 *

7 7 *

7 9 *

8 6 *

8 7 *

1 0 4 *

1 0

113*Outdoor Unit Liquid pipe Temperature Sensor Error Liquid pipe temperature sensor of Outdoor Unit is open or short

Outdoor unit related error

114

115

116*Outdoor Unit Oil Level Sensor Error Oil Level Sensor of Outdoor Unit is open or short

145*

153*

182

193*Outdoor Unit Fan Heatsink High Temperature System is turned off by Outdoor Unit Fan Heatsink High Temperature

194*Outdoor Unit Fan Heatsink Temperature Sensor Fault Outdoor Unit Fan Heatsink Temperature Sensor open or short

2001

201

202

203

204

205

HR unit related error

206

207

208

Inverter PCB EEPROM Error of Outdoor Unit Access Error of Inverter PCB of Outdoor Unit

Outdoor Unit Inverter Heatsink High Temperature

Outdoor Unit Inverter Heatsink Temperature Sensor Fault

Outdoor Unit Fan Lock Restriction of Outdoor Unit

Converter CT Sensor Error of Outdoor Unit Converter CT Sensor open or short of Outdoor Unit

Outdoor Unit Fan CT Sensor Error Outdoor Unit Fan CT Sensor open or short

Outdoor Unit Fan DC Link High Voltage Error Outdoor Unit Fan DC Link High Voltage Error

Outdoor Unit Fan Over Current Error Outdoor Unit Fan Current is over 5A

Outdoor Unit Fan Start Failure Error

Outdoor Unit Main PCB EEPROM Error

Outdoor Unit Fan PCB EEPROM Error

Communication Error Between Outdoor Unit and Other Outdoor Unit

Outdoor Unit Fan PCB Communication Error Failing to receive fan signal at main PCB of unit.

Outdoor Unit FAN IPM Fault Error Instant Over Current at Outdoor Unit Fan IPM

Outdoor Unit Fan DC Link Low Voltage Error Outdoor Unit Fan DC Link Input Voltage is under 380V

Outdoor Unit Subcooling Inlet Temperature Sensor

Error

Outdoor Unit Subcooling Outlet Temperature Sensor

Error

outdoor unit Main Board - External Board communication Error

Failure of operation mode conversion at Outdoor Unit Failure of operation mode conversion at Outdoor Unit

Outdoor Unit Heat Exchanger Temperature Sensor (upper part) Fault

Outdoor Unit Heat Exchanger Temperature Sensor

(lower part) Fault

outdoor unit External Board Main-Sub Micom communi-

cation Error

Searching pipe Error Failure of automatic addressing of valves

C +

HR unit1 Liqiud sensor error Liquid pipe sensor of HR unit open or short

#HR

C +

HR unit1 Sub Cooling Pipe In sensor error Sub Cooling Pipe In sensor of HR unit open or short

#HR

C +

HR unit1 Sub Cooling Pipe Out sensor error Sub Cooling Pipe Out sensor of HR unit. open or short

#HR

C +

Communication error Failing to receive HR unit signal at outdoor unit

#HR

C +

Communication error between HR unit and the upgraded 485 modem.

#HR

C +

Duplicate address error of HR unit

#HR

C +

Communication error between Master and Slave Main PCB of HR Unit

#HR

C +

Communication error of EEPROM of HR Unit When fail to communication of EEPROM of HR Unit

#HR

System is turned off by Outdoor Unit Inverter Heatsink High Temperature

Outdoor Unit Inverter Heatsink Temperature Sensor open or short

Outdoor Unit Fan First Position Sensing Failure

Communication Fail Between Outdoor Unit Main MICOM and EEPROM or omitting EEPROM

Communication Fail Between Outdoor Unit Fan MICOM and EEPROM or omitting EEPROM

Failing to receive Slave Unit signal at main PCB of Outdoor Unit

Outdoor Unit Subcooling Inlet Temperature Sensor Error

Outdoor Unit Subcooling Outlet Temperature Sensor Error

outdoor unit Main Board - External Board communication Error

Outdoor Unit Heat Exchanger Temperature Sensor (upper part) Fault

Outdoor Unit Heat Exchanger Temperature Sensor(lower part) open or short

Outdoor Unit Main Board Main-Sub Micom communication failed

4 series upgraded 485 communication error between HR unit and HR unit modem

When the HR unit address is set duplicated at the 4 series upgraded 485 communication

When fail to communication between Master and Slave Main PCB of HR Unit

When fail to communication of EEPROM of HR Unit

Amount of additional replenished refrigerant

Total amount of replenished refrigerant in refrigerant facility [kg(lbs)]

Note : In case one refrigerant facility is

divided into 2 or more refrigerant systems and each system is independent, amount of replenished refrigerant of each system shall be adopted.

Amount of replenished refrigerant per one outdoor unit system

Amount of replenished refrigerant at factory shipment

Amount of additionally replenished refrigerant depending on piping length or piping diameter at customer

Outdoor unit

Indoor unit

Outdoor unit

Indoor unit

Opening

Partition

In the case of opening without door , or 0.15 % or more openings (to ﬂoor space) both above and below door)

HR unit

Outdoor unit

(No.1 system)

Flow of refrigerant

Indoor unit

Room where refrigerant leaks (Refrigerant of the whole No.1 system ﬂows out.)

HR unit

Outdoor unit

Indoor unit

Smallest room

HR unit

Countermeasure 2

Gas leak alarm

Mechanical ventilator

Countermeasure 1

Opening effective to ventilation

Indoor unit

CAUTION FOR REFRIGERANT LEAK

The installer and system specialist shall secure safety against leakage according to local regulations or standards. The following standards may be applicable if local regulations are not available.

Introduction

Though the R410A refrigerant is harmless and incombustible itself , the room to equip the air conditioner should be large to such an extent that the refrigerant gas will not exceed the limiting concentration even if the refrigerant gas leaks in the room.

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/m per unit air volume) for facilitating calculation.

Limiting concentration: 0.44kg/m3(0.028lbs/ft3)(R410A)

Checking procedure of limiting concentration

Check limiting concentration along following steps and take appropriate measure depending on the situation.

Calculate amount of all the replenished refrigerant (kg) per each refrigerant system.

(lbs/ft3) (Freon gas weight

- With partition and without opening which serve as passage of air to

ENGLISH

adjoining room

Calculate refrigerant concentration

Total amount of replenishedrefrigerant

in refrigerant facility [kg(lbs)]

Capacity of smallest room

whereindoor unit is installed [m

= Refrigerant concentration[Kg/m

(ft3)]

(R410A)

- In case the result of calculation exceeds the limiting concentration, perform the same calculations by shifting to the second smallest, and the third smallest rooms until at last the result is below the limiting concentration.

In case the concentration exceeds the limit When the concentration exceeds the limit, change original plan or take

one of the countermeasures shown below:

• Countermeasure 1

Provide opening for ventilation. Provide 0.15% or more opening to floor space both above and below door, or provide opening without door.

• Countermeasure 2

Provide gas leak alarm linked with mechanical ventilator. Reducing the outdoor refrigerant qty.

(lbs/ft3)]

Calculate minimum room capacity Calculate room capacity by regarding a portion as one room or the

smaller room.

- Without partition

- With partition and with opening which serve as passage of air to adjoining room

Pay a special attention to the place, such as a basement, etc. where refrigerant can stay, since refrigerant is heavier than air.

Sea wind

Windbreak

Sea wind

ENGLISH

INSTALLATION GUIDE AT THE SEASIDE

CAUTION

• Air conditioners should not be installed in areas where corrosive gases, such as acid or alkaline gas, are produced.

• Do not install the product where it could be exposed to sea wind (salty wind) directly. It can result corrosion on the product. Corrosion, particularly on the condenser and evaporator fins, could cause product malfunction or inefficient performance.

• If outdoor unit is installed close to the seaside, it should avoid direct exposure to the sea wind. Otherwise it needs additional anticorrosion treatment on the heat exchanger.

Selecting the location(Outdoor Unit)

If the outdoor unit is to be installed close to the seaside, direct exposure to the sea wind should be avoided. Install the outdoor unit on the opposite side of the sea wind direction.

Model Designation

Product information

• Product Name : Air conditioner

• Model Name :

Product Sales Name Model Factory Name

ARUx***ySSz x = N(Heat Pump), V (Cooling only), B(Heat Recovery) y = G(1Ø, 220-240V, 50Hz) z = Numeric; (Series Number) *** = Numeric; (Cooling capacity)

• Additional information : Serial number is refer to the bar code on the product.

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.

In case, to install the outdoor unit on the seaside, set up a windbreak not to be exposed to the sea wind.

- It should be strong enough like concrete to prevent the sea wind from the sea.

- The height and width should be more than 150% of the outdoor unit.

- It should be keep more than 70 cm (2.3ft) of space between outdoor unit and the windbreak for easy air flow.

Select a well-drained place.

• Periodic ( more than once/year ) cleaning of the dust or salt particles stuck on the heat exchanger by using water

[

Representative

[Manufacturer]

] LG Electronics Inc.

EU Representative : LG Electronics European Shared Service Center B.V.

Krijgsman 1, 1186 DM Amstelveen, The Netherlands LG Electronics Inc. Changwon 2nd factory 84, Wanam-ro, Seongsan-gu, Changwon-si, Gyeongsangnam-do, KOREA

LG ARUB060GSS4 INSTALLATION INSTRUCTIONS

Specifications and Main Features

Frequently Asked Questions

User Manual