Samsung AC180HCADNG/SA 18.0kW Universal Outdoor Ducted, User Manual

Air conditioner

Installation manual

AC***HCA**G, Universal outdoor

• Thank you for purchasing this Samsung air conditioner.

• Before operating this unit, please read this manual carefully and retain it for future reference.

DB68-13835A-00

English

Contents

Safety Information 3

Installation Procedure 10

Step 1 Choosing the installation location 10

Step 2 Fixing the outdoor unit in place 14

Step 3 Connecting the power cables, communication cable, and controllers 17

Step 4 Optional: Extending the power cable 26

Step 5 Connecting the refrigerant pipe 28

Step 6 Optional: Cutting and flaring the pipes 29

Step 7 Installing oil traps 30

Step 8 Connecting up and removing air in the circuit 31

Step 9 Adding refrigerant (R-32) 32

Step 10 Performing the gas leak test 34

Step 11 Connecting the drain hose to the outdoor unit 35

Step 12 Insulating the refrigerant pipes 35

Step 13 Checking the earthing 37

Step 14 Performing final check and trial operation 37

Extra procedures 42

Pumping down refrigerant 42

Relocating the indoor and outdoor units 43

Using the stop valve 43

Performing the gas leak tests for repair 44

Appendix 45

Troubleshooting 45

Correct Disposal of This Product

(Waste Electrical & Electronic Equipment)

(Applicable in countries with separate collection systems)

This marking on the product, accessories or literature indicates that the product and its electronic accessories (e.g. charger,

headset, USB cable) should not be disposed of with other household waste at the end of their working life. To prevent

possible harm to the environment or human health from uncontrolled waste disposal, please separate these items from

other types of waste and recycle them responsibly to promote the sustainable reuse of material resources.

Household users should contact either the retailer where they purchased this product, or their local government office, for

details of where and how they can take these items for environmentally safe recycling.

Business users should contact their supplier and check the terms and conditions of the purchase contract. This product and

its electronic accessories should not be mixed with other commercial wastes for disposal.

English

Safety Information

WARNING: Read This Manual

• Read and follow all safety information and instructions before installation, use, or maintenance of this appliance.

Incorrect installation, use, or maintenance of this appliance can result in death, serious injury, or property damage. Keep

these instructions with this appliance. This manual is subject to change. For the latest version, visit www.samsung.com.

Notices and notes

To make you aware of safety messages and highlighted information, we use the following notices and notes throughout this

manual:

WARNING

Hazards or unsafe practices that may result in severe personal injury or death.

CAUTION

Hazards or unsafe practices that may result in minor personal injury or property damage.

IMPORTANT

Information of special interest

NOTE

Supplementary information that may be useful

WARNING: Low burning velocity material

(This appliance is filled with R-32.)

Refer to operating manual

Read operating manual

Read installation and service manual

WARNING

The installation and testing of this appliance must be performed by a qualified technician.

• The instructions in this manual are not intended as a substitute for proper training or adequate experience in the safe

installation of the appliance.

Always install the air conditioner in compliance with current local, state, and federal safety standards.

Safety Information

English

Safety Information

General information

WARNING

• Carefully read the content of this manual before

installing the air conditioner and store the manual in a

safe place in order to be able to use it as reference after

installation.

• For maximum safety, installers should always carefully

read the following warnings.

• Store the operation and installation manual in a safe

location and remember to hand it over to the new

owner if the air conditioner is sold or transferred.

• This manual explains how to install an indoor unit with

a split system with two SAMSUNG units. The use of

other types of units with different control systems may

damage the units and invalidate the warranty. The

manufacturer shall not be responsible for damages

arising from the use of non compliant units.

• The manufacturer shall not be responsible for damage

originating from unauthorized changes or the improper

connection of electric and requirements set forth in the

“Operating limits” table, included in the manual, shall

immediately invalidate the warranty.

• The air conditioner should be used only for the

applications for which it has been designed: the indoor

unit is not suitable to be installed in areas used for

laundry.

• Do not use the units if damaged. If problems occur,

switch the unit off and disconnect it from the power

supply.

• In order to prevent electric shocks, fires or injuries,

always stop the unit, disable the protection switch

and contact SAMSUNG’s technical support if the unit

produces smoke, if the power cable is hot or damaged

or if the unit is very noisy.

• Always remember to inspect the unit, electric

connections, refrigerant tubes and protections

regularly. These operations should be performed by

qualified personnel only.

• The unit contains moving parts, which should always be

kept out of the reach of children.

• Do not attempt to repair, move, alter or reinstall the

unit. If performed by unauthorized personnel, these

operations may cause electric shocks or fires.

• Do not place containers with liquids or other objects

on the unit.

• All the materials used for the manufacture and

packaging of the air conditioner are recyclable.

• The packing material and exhaust batteries of the

remote controller(optional) must be disposed of in

accordance with current laws.

• The air conditioner contains a refrigerant that has to be

disposed of as special waste. At the end of its life cycle,

the air conditioner must be disposed of in authorized

centres or returned to the retailer so that it can be

disposed of correctly and safely.

• Wear protective equipment (such as safety gloves,

goggles, and headgear) during installation and

maintenance works. Installation/repair technicians

may be injured if protective equipment is not properly

equipped.

• This appliance is not intended for use by persons

(including children) with reduced physical, sensory

or mental capabilities, or lack of experience and

knowledge, unless they have been given supervision

or instruction concerning use of the appliance by a

person responsible for their safety. Children should be

supervised to ensure that they do not play with the

appliance.

• Do not use means to accelerate the defrost operation or

to clean, other than those recommended by Samsung.

• Do not pierce or burn.

• Be aware that refrigerants may not contain an odour.

• The appliance shall be stored in a room without

continuously operating ignition sources (for example:

open flames, an operating gas appliance or an

operating electric heater).

• Only be connected to an appliance suitable for the

same refrigerant.

Installing the unit

WARNING

IMPORTANT: When installing the unit, always remember to

connect first the refrigerant tubes, then the electrical lines.

• Upon receipt, inspect the product to verify that it has

not been damaged during transport. If the product

appears damaged, DO NOT INSTALL it and immediately

report the damage to the carrier or retailer (if the

installer or the authorized technician has collected the

material from the retailer.)

English

Safety Information

• After completing the installation, always carry out a

functional test and provide the instructions on how to

operate the air conditioner to the user.

• Do not use the air conditioner in environments with

hazardous substances or close to equipment that

release free flames to avoid the occurrence of fires,

explosions or injuries.

• Do not install the product in a place where thermo-

hygrostat is needed (such as server room, machinery

room, computer room, etc.) Those places do not

provide guaranteed operation condition of the product

therefore performance can be poor in these places.

• Do not install the product in a ship or a vehicle (such as

a campervan).

Salt, vibration or other environmental factor may cause

the product malfunction, electric shock or fire.

• Our units should be installed in compliance with the

spaces shown in the installation manual, to ensure

accessibility from both sides and allow repairs or

maintenance operations to be carried out. The

unit’s components should be accessible and easy to

disassemble without endangering people and objects.

• For this reason, when provisions of the installation

manual are not complied with, the cost required to

access and repair the units (in SAFETY CONDITIONS,

as set out in prevailing regulations) with harnesses,

ladders, scaffolding or any other elevation system will

NOT be considered part of the warranty and will be

charged to the end customer.

• The outdoor unit shall be installed in an open space

that is always ventilated.

• The local gas regulations shall be observed.

• To handle, purge, and dispose the refrigerant, or break

into the refrigerant circuit, the worker should have a

certificate from an industry-accredited authority.

• While in installation or relocation of the product, do

not mix the refrigerant with other gases including air

or unspecified refrigerant. Failure to do so may cause

pressure increase to result in rupture or injury.

• Do not cut or burn the refrigerant container or pipings.

• Use clean parts such as manifold gauge, vacuum pump,

and charging hose for the refrigerant.

• Installation must be carried out by qualified personnel

for handling the refrigerant. Additionally, reference the

regulations and laws.

• Be careful not to let foreign substances (lubricating oil,

refrigerant, water, etc.) enter the pipings.

• When mechanical ventilation is required, ventilation

openings shall be kept clear of obstruction.

• For disposal of the product, follow the local laws and

regulations.

• Do not work in a confined place.

• The work area shall be blocked.

• The refrigerant pipings shall be installed in the position

where there are no substances that may result in corrosion.

• The following checks shall be performed for

installation:

– The charging amount depends on the room size.

– The ventilation devices and outlets are operating

normally and are not obstructed.

– Markings and signs on the equipment shall be

visible and legible.

• Upon leakage of the refrigerant, ventilate the room.

When the leaked refrigerant is exposed to flame, it may

cause generation of toxic gases.

• Make sure that the work area is safe from flammable

substances.

• To purge air in the refrigerant, be sure to use a vacuum

pump which is compatible with R-32.

• Note that the refrigerant has no odour.

• The units are not explosion proof so they must be

installed with no risk of explosion.

• This product contains fluorinated gases that contribute

to global greenhouse effect. Accordingly, do not vent

gases into the atmosphere.

• For installation with handling the refrigerant(R-32), use

dedicated tools and piping materials. Working pressure

of R-32 is higher than R410A, So failure to use the

dedicated tools and piping materials may cause rupture

or injury. Furthermore, it may cause serious accidents

such as water leakage, electric shock or fire.

• Servicing shall be performed as recommended by the

manufacturer. In case other skilled persons are joined

for servicing, it shall be carried out under supervision

of the person who is competent in handling flammable

refrigerants.

• For servicing the units containing flammable

refrigerants, safety checks are required to minimise the

risk of ignition. R-32 is slightly more flammable than

R410A hence additional precautions are required when

dealing with it.

• Servicing shall be performed following the controlled

procedure to minimize the risk of flammable

refrigerant or gases.

• Do not install where there is a risk of combustible gas

leakage.

• Do not place heat sources.

English

Safety Information

• Be cautious not to generate a spark as follows:

• Do not remove the fuses with power on.

• Do not disconnect the power plug from the wall outlet

with power on.

• It is recommended to locate the outlet in a high

position. Place the cords so that they are not tangled.

• If the indoor unit is not R-32 compatible, an error signal

appears and the unit will not operate.

• After installation, check for leakage. Toxic gas may be

generated and if it comes into contact with an ignition

source such as fan heater, stove, and cooker, cylinders,

make sure that only the refrigerant recovery cylinders

are used.

• Never directly touch any accidental leaking refrigerant.

It could result in severe wounds caused by frostbite.

Preparation of fire extinguisher

• If a hot work is to be done, an appropriate fire

extinguishing equipment should have been available.

• A dry powder or CO₂ fire extinguisher shall be equipped

near the charging area.

Ignition sources free

• Make sure to store the units in a place without

continuously operating ignition sources (for example,

open flames, an operating gas appliance or an

operating electric heater).

• The service engineers shall not use any ignition sources

with the risk of fire or explosion.

• Potential ignition sources shall be kept away from

the work area where the flammable refrigerant can

possibly be released to the surrounding.

• The work area should be checked to ensure that there

are no flammable hazards or ignition risks. The “No

Smoking” sign shall be attached.

• Under no circumstances shall potential sources of

ignition be used while in detection of leakage.

• Make sure that the seals or sealing materials have not

degraded.

• Safe parts are the ones with which the worker can work

in a flammable atmosphere. Other parts may result in

ignition due to leakage.

• Replace components only with parts specified by

Samsung. Other parts may result in the ignition of

refrigerant in the atmosphere from a leak.

Area ventilation

• Make sure that the work area is well ventilated before

performing a hot work.

• Ventilation shall be made even during the work.

• The ventilation should safely disperse any released

gases and preferably expel them into the atmosphere.

• Ventilation shall be made even during the work.

Leakage detection methods

• The leakage detector shall be calibrated in a

refrigerantfree area.

• Make sure that the detector is not a potential source

of ignition.

• The leakage detector shall be set to the LFL (lower

flammability limit).

• The use of detergents containing chlorine shall be

avoided for cleaning because the chlorine may react

with the refrigerant and corrode the pipings.

• If leakage is suspected, naked flames shall be removed.

• If a leakage is found while in brazing, the entire

refrigerant shall be recovered from the product or

isolated (e.g. using shut-off valves). It shall not be

directly released to the environment. Oxygen free

nitrogen (OFN) shall be used for purging the system

before and during the brazing process.

• The work area shall be checked with an appropriate

refrigerant detector before and during work.

• Ensure that the leakage detector is appropriate for use

with flammable refrigerants.

Labelling

• The parts shall be labelled to ensure that they have

been decommissioned and emptied of refrigerant.

• The labels shall be dated.

• Make sure that the labels are affixed on the system to

notify it contains flammable refrigerant.

English

Safety Information

Recovery

• When removing refrigerant from the system for

servicing or decommissioning, it is recommended to

remove the entire refrigerant.

• When transferring refrigerant into cylinders, make sure

that only the refrigerant recovery cylinders are used.

• All cylinders used for the recovered refrigerant shall

be labelled.

• Cylinders shall be equipped with pressure relief valves

and shut-off valves in a proper order.

• Empty recovery cylinders shall be evacuated and

cooled before recovery.

• The recovery system shall operate normally according

to the specified instructions and shall be suitable for

refrigerant recovery.

• In addition, the calibration scales shall operate

normally.

• Hoses shall be equipped with leak-free disconnect

couplings.

• Before starting the recovery, check for the status of the

recovery system and sealing state. Consult with the

manufacturer if suspected.

• The recovered refrigerant shall be returned to the

supplier in the correct recovery cylinders with the

Waste Transfer Note attached.

• Do not mix refrigerants in the recovery units or

cylinders.

• If compressors or compressor oils are to be removed,

make sure that they have been evacuated to the

acceptable level to ensure that flammable refrigerant

does not remain in the lubricant.

• The evacuation process shall be performed before

sending the compressor to the suppliers.

• Only the electrical heating to the compressor body is

allowed to accelerate the process.

• Oil shall be drained safely from the system.

• For installation with handling the refrigerant (R-32),

use dedicated tools and piping materials. Because

the pressure of the refrigerant, R-32 is approximately

1.6 times higher than that of R-22, failure to use the

dedicated tools and piping materials may cause rupture

or injury. Furthermore, it may cause serious accidents

such as water leakage, electric shock, or fire.

• Never install a motor-driven equipment to prevent

ignition.

Power supply line, fuse or circuit breaker

WARNING

• Always install the air conditioner in compliance with

current local, state, and federal safety standards.

• Always verify that a suitable earthing connection is

available.

• Verify that the voltage and frequency of the power

supply comply with the specifications and that the

installed power is sufficient to ensure the operation of

any other domestic appliance connected to the same

electric lines.

• Always verify that the cut-off and protection switches

are suitably dimensioned.

• Verify that the air conditioner is connected to the power

supply in accordance with the instructions provided in

the wiring diagram included in the manual.

• Always verify that electric connections (cable entry,

section of leads, protections…) are compliant with

the electric specifications and with the instructions

provided in the wiring scheme. Always verify that all

connections comply with the standards applicable to

the installation of air conditioners.

• Devices disconnected from the power supply should

be completely disconnected in the condition of

overvoltage category.

• Be sure not to perform power cable modification,

extension wiring, and multiple wire connection.

– It may cause electric shock or fire due to

poorconnection, poor insulation, or current limit

override.

– When extension wiring is required due to power

line damage, refer to "Step 4 Optional: Extending

the power cable" in the installation manual.

Precautions for using R-32 refrigerant

General

• This product is pre-charged with mildly flammable gas

classified as A2L by ASHRAE. The following precautions

and instruction manuals must be followed during

installation, operation, servicing and decommissioning

of the product.

English

Safety Information

• The appliance shall be stored in a room without

continuously operating ignition sources, like open

flames, a gas appliance, or an electric heater.

• All national and local regulations shall be observed at

all times.

• All pipe work including piping material, pipe routing

and installation shall include protection from physical

damage in operation and service, and comply national

and local codes and standards, such as ASHRAE 15,

ASHRAE 15.2, IAPMO Uniform Mechanical Code, ICC

International Mechanical Code, or CSA B52. All filed

joints shall be accessible for inspection before being

covered or enclosed.

• All field piping and joints shall be pressure tested

with an inert gas according to prevalent industry

standards prior to refrigerant charging and system

commissioning.

• Where additional field charging is required. The

installer shall write with a permanent marker the field

charge added on the ODU label provided, such that the

Total Charge = Factory ‘Pre-charge’ + field charge.

• Minimum floor area of the room shall be in compliance

with the min. room area according to the total charge

of the installation according to Table 1.

• For ducted systems, any auxiliary systems that are

potential ignition sources shall not be installed in

the duct work. Examples of ignition sources are hot

surfaces with temperatures exceeding 700°C and

electric switching devices.

• Any auxiliary device installed must be approved by

Lennox and must be suitable for operating with the

refrigerant marked on the label.

• For mechanical ventilation the lower edge of the air

extraction opening shall not be more than 100mm

above the floor. The exhaust location outside the

building must be at least 3m away from the building

opening and mechanical air intake openings.

• To handle, purge, and dispose of the refrigerant, or

break into the refrigerant circuit, the worker should

have a certificate from an industry-accredited

authority.

• Non-ducted systems may be installed in the areas such

as false ceilings not being used as return air plenum as

long as the conditioned air does not mix with the air in

the false ceilings.

• For ducted appliances false ceilings or drop ceilings

may be used as return air plenum if a refrigerant leak

detection system is provided in the system and any

external connections are also provided with a sensor

immediately below the return air plenum duct joint.

• Installation, servicing and any type of maintenance or

repair must be performed by certified personnel that

is competent to carry such activity in accordance with

national and local regulations.

General Information on Servicing

• Do not work in a confined space. Ensure adequate

ventilation is provided at the workspace during the

entirety of the duration of the work to safely disperse

any released refrigerant.

• All maintenance staff and others working in the local

area shall be instructed on the nature of the work being

performed and instructed to follow all instructions

provided by Lennox, national and local authorities.

• The area shall be checked with an approved refrigerant

detector before and during any work on the system.

• Have a dry CO

fire extinguisher adjacent to the

charging area and workspace.

• The service personnel shall not use any ignition

sources in a manner that it may lead to the risk of fire

or explosion.

• Potential ignition sources shall be kept away from the

work area where the flammable refrigerant can be

released into the surrounding area.

• The work area should be checked to ensure that there

are no flammable hazards or ignition risks. The “No

Smoking” sign shall be attached.

• Under no circumstances shall potential sources of

ignition be used upon detection of leakage.

The following checks shall be applied to installations and

maintenance operations.

• The actual total refrigerant charge is in accordance

with the room size in accordance with Table 1.

• The ventilation machinery and outlets are operating

adequately and are not obstructed.

• Markings on the equipment are visible and legible.

• Refrigerant pipes or components are installed in a

position where they are unlikely to be exposed to any

substance which may corrode refrigerant containing

components.

Initial checks of electrical devices shall include the

following.

• That capacitors are discharged in a safe manner to

avoid sparking.

• That no live electrical components and wiring are

exposed while charging, recovering or purging the

system.

• That there is continuity to earth bonding.

• Check that cabling is not worn, corroded or damaged

in any manner.

English

Safety Information

Electrical repair safety measures

• All electrical components used or replaced must be to

Lennox’s specifications.

• If a fault exists that could compromise safety, then no

electrical supply shall be connected to the circuit until

it is satisfactorily dealt with.

• Sealed electrical components and intrinsically safe

components shall be replaced and not repaired.

• Cabling should be protected from excessive

vibration, pressure, sharp edges, and other adverse

environmental factors.

Detection of flammable refrigerants

• Electronic leak detectors shall be used to detect

flammable refrigerants, but the sensitivity may not

be adequate or may need re-calibration. (Detection

equipment shall be calibrated in a refrigerant-free

area.)

• Make sure that the detector is not a potential source

of ignition.

• Leak detection equipment shall be set at a percentage

of the LFL (Lower flammable limit) of the refrigerant

and shall be calibrated to the refrigerant employed and

the appropriate percentage of gas (25% maximum) is

confirmed.

• The use of detergents containing chlorine shall be

avoided for cleaning because the chlorine may react

with the refrigerant and corrode the piping.

• If leakage is suspected, naked flames shall be removed.

• If a leakage is found while brazing, the entire

refrigerant shall be recovered from the product or

isolated (e.g. using shut-off valves). It shall not be

directly released into the environment. Oxygen-free

nitrogen (OFN) shall be used for purging the system

before and during the brazing process.

• The work area shall be checked with an appropriate

refrigerant detector before and during work.

• Ensure that the leakage detector is appropriate for use

with flammable refrigerants.

Removal and Evacuation

• When removing refrigerant for servicing it is

recommended to remove the entire quantity.

• When removing refrigerant follow local and national

regulations and follow best practices including;

– evacuate;

– purge the circuit with inert gas (optional for A2L);

– evacuate (optional for A2L);

– continuously flush or purge with inert gas when

using flame to open circuit; and

– open the circuit.

• Use proper recovery cylinders appropriate for the type

of refrigerant.

• Follow prescribed industry best practices for purging

and evacuation.

• Oxygen free nitrogen shall be used for purging the

system.

Charging procedure

• Follow industry standard refrigerant charging best

practices.

• Prior to recharging the system shall be pressure tested

with oxygen free nitrogen gas.

• Ensure that contamination of different refrigerants

does not occur when charging.

• Cylinders shall be kept in the appropriate position as

per instructions.

• The refrigerant system should be earthed prior to

charging the system.

• Label the system when charging is completed.

• Take extreme care not to overfill the refrigeration

system.

• The system shall be leak tested on completion of

charging prior to commissioning.

Decommissioning

• Only qualified licensed professionals shall perform

refrigerant recovery and decommissioning.

• Isolate the system electrically.

• All recovery equipment and cylinders shall conform to

appropriate standards. Only approved cylinders, with

pressure relief valves, for the type of refrigerant shall

be used.

• Recover refrigerant following industry standard

procedure for flammable refrigerants.

• When draining compressors oil care must be taken that

there is no flammable refrigerant in the compressor

and that the compressor is not hot. Oil should be

handled according to local and federal regulations.

• After decommissioning, the system shall be labeled

stating that it has been decommissioned. The label

shall be dated and signed. The label should state that it

“contains flammable refrigerant”.

• Ensure that there are labels on the equipment

indicating the equipment contains flammable

refrigerant.

• Recovered refrigerant shall not be mixed or reused.

It shall be processed according to national, state and

local regulations.

English

Installation Procedure

Step 1 Choosing the installation location

WARNING

• If appliances contain R-32 refrigerant, then the floor

area of the room in which the appliances are installed,

operated and stored must be larger than the minimum

floor area defined in table below A (m²).

m (kg)

Minimum required room area (A, m²)

Ceiling-mounted type

Without Refeigerant

Detection Sensor

With Refeigerant

Detection Sensor

≤ 1.836 No requirement

1.837 3.7 3.7

2.0 4.0 4.0

2.2 4.4 4.4

2.4

4.8 4.8

2.6

5.2 5.2

2.8

5.6 5.6

3.0

6.0 6.0

3.2

6.6 6.4

3.4

7.4 6.8

3.6

8.3 7. 2

3.8

9.3 7.6

4.0

10.3 8.0

4.2

11.3 8.4

4.4

12.4 8.8

4.6

13.6 9.2

4.8

14.8 9.6

5.0

16.0 10.0

5.2

17. 3 10.3

5.4

18.7 10.7

5.6

20.1 11.1

5.8

21.5 11.5

6.0

23.0 11.9

6.2

24.6 12.3

6.4

26.2 12.7

6.6

27.9 13.1

6.8

29.6 13.5

7.0

31.3 13.9

7. 2

33.1 14.3

7.4

35.0 14.7

7.6

36.9 15.1

7.8

38.9 15.5

8.0

40.9 15.9

8.5

46.2 16.9

9.0

51.7 17.9

9.5

57.6 18.9

10.0

63.9 19.9

10.5

70.4 20.8

11.0

7 7. 3 21.8

11.5

84.5 22.8

12.0

92.0 23.8

– m : Total refrigerant charge in the system

– A : Minimum required room area

• IMPORTANT: it’s mandatory to consider either the

"Minimum required room area" tabel or taking into

consideration the local law regarding the minimum

living space of the premises.

• Minimum installation height of indoor unit is 2.2 m for

ceiling-mount type.

Installation location requirements

• The outdoor unit shall be installed in an open space

that is always ventilated.

• The local gas regulations shall be observed.

• Never install the outdoor unit in a location such as on a

high external wall where it could fall.

– If the outdoor unit falls, it may result in injury,

death or property damage.

• Install your appliance on a level and hard floor that can

support its weight.

– Failing to do so may result in abnormal vibrations,

noise, or problems with the product.

• When installing the outdoor unit, make sure to connect

the drain hose so that draining is performed correctly.

– The water generated during the heating operation

in the outdoor unit may overflow and result in

property damage. In particular, in winter, if a block

of ice falls, it may result in injury, death or property

damage.

• For installation inside a building (this applies either

to indoor or outdoor units installed inside) a minimum

room floor area of space conditioned is mandatory

according to EN378-1:2017 (see the reference table into

the indoor unit installation manual).

• To handle, purge, and dispose the refrigerant, or break

into the refrigerant circuit, the worker should have a

certificate from an industry-accredited authority.

• Do not install the air conditioner in following areas.

– The place where there is mineral oil or arsenic acid.

Resin parts flame and the accessories may drop or

water may leak. The capacity of the heat exchanger

may reduce or the air conditioner may be out of

order.

– The place where corrosive gas such as sulfurous

acid gas generates from the vent pipe or air outlet.

The copper pipe or connection pipe may corrode

and refrigerant may leak.

– The place where there is a machine that generates

electromagnetic waves. The air conditioner may not

operate normally due to control system.

– The place where there is a danger of existing

combustible gas, carbon fiber or flammable dust.

– The place where animals may urinate on the

product. Ammonia may be generated.

– The place where thinner or gasoline is handled. Gas

may leak and it may cause fire.

– The place where is close to heat sources.

• Do not use the indoor unit for preservation of food

items, plants, equipment, and art works. This may cause

deterioration of their quality.

• Do not install the indoor unit if it has any drainage

problem.

Installation Procedure

English

Installation Procedure

• Do not place the outdoor unit on its side or upside

down. Failing to do so may cause the compressor

lubrication oil to run into the cooling circuit and lead to

a serious damage to the unit.

• Install the unit in a well-ventilated location away from

direct sunlight or strong winds.

• Install the unit in a location that would not obstruct any

passageways or thoroughfares.

• Install the unit in a location that would not

inconvenience or disturb your neighbors, as they could

be affected by the noise or the airflow coming from

the unit.

• Install the unit in a location where the pipes and the

cables can be easily connected to the indoor unit.

• Install the unit on a flat, stable surface that can

withstand the weight of the unit. Otherwise, the unit

can generate noise and vibration during operation.

• Install the unit so that the air flow is directed towards

the open area.

• Maintain sufficient clearance around the outdoor unit,

especially from a radio, computer, stereo system, etc.

Indoor Unit

Control

1.5 m or more

300 mm

200 mm

Outdoor Unit

Air Guide Duct (This product is not provided by Samsung)

Stereo Computer etc

1 m or more

• Install the unit at a height where its base can be firmly fixed

in place.

• Make sure that the water dripping from the drain hose runs

away correctly and safely.

CAUTION

• This device must be installed according to the national

electrical rules.

• If your outdoor unit exceeds a net weight of 60 kg, do not

install it on a suspended wall, but stand it on a floor.

• When installing the outdoor unit at the seaside,an additional

protective coating (third party) may be required, make sure

that it is not directly exposed to sea breeze. If you cannot find

an adequate place free from direct sea breeze, construct a

protection wall or a protective fence.

– Install the outdoor unit in a place (such as near buildings

etc.) where it can be prevented from sea breeze. Failure

to do so may cause a damage to the outdoor unit.

Sea breeze

Sea

Outdoor Unit

Sea breeze

Sea

• If you cannot avoid installing the outdoor unit at the

seaside, construct a protection wall around to block the

sea breeze.

• Construct a protection wall with a solid material such

as concrete to block the sea breeze. Make sure that the

height and the width of the wall are 1.5 times larger

than the size of the outdoor unit. Also, secure a space

larger than 700 mm between the protection wall and

the outdoor unit for exhausted air to ventilate.

Sea breeze

Outdoor Unit

Protection wall

Sea

CAUTION

• Depending on the condition of power supply, unstable

power or voltage may cause malfunction of the parts

or control system. (At the ship or places using power

supply from electric generator...etc)

• Install the unit in a place where water can drain

smoothly.

• If you have any difficulty finding installation location as

prescribed above, contact your manufacturer for details.

• Be sure to clean the heat exchanger and base plate

of the outdoor unit regularly from any collected sand

and salt.

• Touch up the additional protective coating (third party)

if needed, at least once in a year or according the third

party's product requirements.

• Check the condition of the product periodically.

– Check the installation site every 3 months and

perform anti-corrosion treatment such as R-Pro

supplied by SAMSUNG (Code : MOK-220SA) or

commercial water repellent grease and wax,

etc.,based on the product condition.

– When the product is to be shut down for a long

period of time, such as off-peak hours, take

appropriate measures like covering the product.

• If the product installed within 500m of seashore,

special anti-corrosion treatment is required.

※

Please contact your local SAMSUNG representative for

further details.

English

Installation Procedure

Outdoor unit dimensions

(Unit: mm)

Type A

AC071HCADKG

798

338

880

661

310

Type B

AC090/100/120HCAD*G

940

977

998

528

537

675

330

360

384

620

Type C

AC140/160/180HCAD*G, AC100/120/140/160HCAPKG

384

360

620

330

1095

567

558

1420

940

1395

Type D

AC200HCADNG, AC180HCAPKG

620

520

460

1615

1630

583

603

674

940

Minimum clearances for the outdoor unit

When installing 1 outdoor unit

(Unit: mm)

150 or more

500 or more

150 or

1000 or

1000 or more

500 or more

150

or more

1000

or more

150 or

When installing more than 1 outdoor unit

(Unit: mm)

1000

or more

200

or more

2000

or more

3000

or more

150

or more

150 or more

1500

or more

300

or more

1000 or more

150

or more

150

or more

200

or more

300

or more

300

or more

English

Installation Procedure

300 or more

500 or more 500 or more

CAUTION

• The outdoor unit must be installed according to the

specified distances in order to permit accessibility from

each side, to guarantee correct operation, maintenance,

and repair of the unit.

The components of the outdoor unit must be reachable and

removable under safe conditions for people and the unit.

WARNING

• Should adopt bar type louver. Don’t use a type of rain

resistance louver.

[Bar type louver] [Rain resistance louver]

• Louver specifications.

– Angle criteria : less than 20°

– Opening ratio criteria : greater than 80%

Moving the outdoor unit with wire rope

1 Before carrying the outdoor unit, fasten two wire ropes of

8 m or longer, as shown in the figure.

2 To prevent damages or scratches effectively, insert a piece

of cloth between the outdoor unit and the ropes.

3 Move the outdoor unit.

AC071/090/100/120 140/160/180HCAD*G,

AC100/120/140/160HCAPKG

Wire rope

Plate protection cloth

AC200HCADNG, AC180HCAPKG

• Select the moving path in advance.

• Be sure that moving path can support weight of the

outdoor unit.

• Do not slant the product more than 30˚ when carrying it.

(Do not lay the product down in sideways.)

• Surface of the heat exchanger is sharp. Be careful not to

get injured while moving the product.

CAUTION

• You must use certain part of the product when moving the

product.

1 When moving with a crane

• Fasten the wire rope as shown in the figure.

• To protect damage or scratches, insert a piece of cloth

between the outdoor unit and the wire rope.

2 When moving with a forklift

• Carefully insert the forklift forks into the forklift holes at

the bottom of the outdoor unit.

• Be careful with the forklift from damaging the product.

3 When moving the product without wooden pallet and the

crane is not available for use

• Connect a wire rope to the outdoor unit as you would move

it with a crane.

• Hang the wire rope to the forklift fork to move the outdoor

unit.

English

Installation Procedure

forklift

wire rope

Wooden pallet

wire rope

Step 2 Fixing the outdoor unit in place

Install the outdoor unit on a rigid and stable base to prevent

disturbance from any noise caused by vibration. When installing

the unit at a height or in a location exposed to strong winds, fix

the unit securely to a support (i.e., a wall or a ground).

Fix the outdoor unit with anchor bolts. Make sure that the

anchor bolts are 20 mm or higher from the base surface.

AC071HCADKG

Anchor bolt hole

661

357

338

359

880

(Unit : mm)

AC090/100/120 140/160/180HCAD*G,

AC100/120/140/160HCAPKG

Anchor bolt hole

330

360

384

620

940

(Unit : mm)

AC180HCAPKG, AC200HCADNG

620

940

460

464

520

Anchor bolt position

Type A

CAUTION

• Install a drain outlet at the lowest end around the base for

outdoor unit drainage

• When installing the outdoor unit on the roof, waterproof

the unit and check the ceiling strength.

• Make sure that the wall can support the weights of the

rack and the outdoor unit.

• Install the rack close to the column as much as

possible.

Optional: Fixing the outdoor unit to a wall with

a rack

Designed to cut off residual vibration from

outdoor unit to rack. (not supplied with product)

Anchor bolt

20 mm

Base surface

Soft rubber designed to cut off vibration from rack to wall.

(not supplied with product)

English

Installation Procedure

• Install a proper grommet in order to reduce noise

and residual vibration transferred by the outdoor unit

towards the wall.

CAUTION

• When installing an air guide duct, be sure to check the

following:

– The screws do not damage the copper pipe.

– The air guide duct is fixed firmly on the guard fan.

WARNING

• Make sure to remove the wooden pallet before

installing the outdoor unit. If you do not remove the

wooden pallet, there is risk of fire during welding the

pipes.

• If the outdoor unit is installed with wooden pallet on,

and it was used for long period time, wooden palette

may break and cause electrical hazard or high pressure

may damage the pipes.

1 Install the outdoor unit 150mm higher than the base

ground and install the drain hole to connect the pipe to

the drainage.

2 When the front fan of an outdoor unit is installed in a

place where the average snowfall is more than 150mm,

the discharge duct should be attached to the outdoor unit.

3 The concrete foundation should be 1.5 times larger than

bottom of the outdoor unit.

4 It is necessary to install wire mesh or steel bar when

outdoor units are installed on a soft foundation.

5 When installing multiple outdoor units at the same place,

install the H beam on the base ground. (When installing

a number of outdoor units, you can install it on the base

ground.)

6 Install the H beam(150mm x 150mm x t10 : basic

specification) or vibration absorption frame to jut out from

the base ground.

7 After installing the H beam, apply corrosion protection.

8 Install a square pad(t=20mm or more) to prevent vibration

from the outdoor unit onto the base ground. Place the

outdoor unit on the H beam and fix it with the bolt, nut

and washer. (Fix with M10 basic anchor bolt, nut and

washer.)

(Unit : mm)

Outdoor unit

Anchor bolt

Nut, Spring wahser

H-beam

Square pad

A+10~20mm or more

20mm

75mm or

Base construction and installation of the

outdoor unit

Base ground contruction

Drain hole

150 mm or more

(when Installing on the ground)

Install the outdoor unit

horizontally on the ground

150 mm or more

(when Installing on the roof)

• The outdoor unit should be supported within the range

of measurement below for base ground work.

• When the outdoor unit needs to be supported,fix it with

wire as shown in the picture.

– Slightly unwind the four screws on the cover top of

the outdoor unit.

– Wind wires round the four screws and fasten the

screws again.

– Fix the wires to the ground.

English

Installation Procedure

CAUTION

• If the outdoor unit is not fixed securely,product may fall

and it might cause loss of life or property damage.

• Do not install the outdoor unit on the wooden pallet.

• Fix the outdoor unit securely to the base ground with

anchor bolts.

• The manufacturer is not responsible for the damage

occurred by not adhering to the standard of the

installation.

• To protect the outdoor unit from external condition

such as rain, install it on the base ground and connect

the drain pipe to the drainage.

CAUTION

• Please firstly ensure the strength and levelness of the

platform, ground and the support so as to lower the

noise and vibration for fear of human injuries.

• The hanging mount on the wall is prohibited due to the

heavy machine. The improper installation shall lead to

the fall of the machine as well as human injuries.

The machine shall be installed on the ground or on the high

platform

• As shown in Figure 1, to ensure the shadow part is on

the bearing surface without suspension.

• As shown in Figure 1, the four installation footings shall

be firmly fastened on the base platform by the bolts

(preparing four sets of M10 bolts with fitful nuts and

washer which are used on site)

• In order to reduce the vibration of the noisemeter, the

vibration absorber (offer on site) shall be used between

the contact of machine and base platform.

• It is optimal that anchor bolt is 20mm above the

surface. (See Figure 2)

The base of the outdoor unit and the position

of foundation bolts

620

103.2

464

520

>90

>100

↕

20mm

Bearing surface

Figure 1

Position of the foundation

bolts(Ø12.0 Hole 4Points)

Unit:mm

Figure 2

Ground plane

• Please ensure the shadow part in Figure 1 is really

installed on the bearing surface without any

suspension.

• The ground base that is larger than the standing leg

of the air-conditioner (90mm in width and 520mm in

length) shall be used to support the air-conditioner

(See Figure 1), and the rubber mat shall be fully placed

on the whole bearing surface.

English

Installation Procedure

• The base platform shall be at least 150mm above the

ground.

CAUTION

• When the grounding pipe comes out from the below,

please reserve the place for the connection pipe.

• The installation mode mentioned above shall ensure

that the shadow part in Figure 1 is really on the

installation surface.

Step 3 Connecting the power cables,

communication cable, and controllers

You must connect the following three electrical cables to the

outdoor unit:

• The main power cable between the auxiliary circuit

breaker and the outdoor unit.

• The outdoor-to-indoor power cable between the

outdoor unit and the indoor unit.

• The communication cable between the outdoor unit

and the indoor unit.

CAUTION

• During installation, make first the refrigerant connections

and then the electrical connections. If the unit is

uninstalled, first disconnect the electrical cables and then

the refrigerant connections.

• Connect the air conditioner to the earthing system before

making the electrical connections.

Connecting wire conduits

When connecting the power supply cables and communication

cable, use conduits to protect the exposed cables from outside

of product.

(for AC090/100/120/140/160/180/200HCAD*G,

AC100/120/140/160/180HCAPKG models)

1 Remove conduit knock-outs.

• Use a nipper to remove conduit holes from the

lower part of the cabinet.

(Do not remove it by hammering.)

Conduit Holes

2 Insert the cables through the conduits, and then fix the

conduits to the conduit plate with the lock nuts.

• Connect the cables through a conduit to protect

against external forces, and feed the conduit

through the wall together with refrigerant piping.

3 Apply silicone to the end of the hose to prevent rain from

entering the hose.

Silicone

Conduit inserted into the outdoor unit

4 Connect the cables to the outdoor units.

For how to connect the cables, refer to the next page.

5 Attach the conduit plate to the product.

English

Installation Procedure

Air conditioning system examples

CAUTION

• Make sure to install an ELCB (RCD or RCCB) or ELB and MCB combination, according local regulations.

• If the outdoor unit is installed in a location vulnerable to an electric leak or submergence, make sure to install an ELCB.

• For the product that uses the R-32 refrigerant, be cautious not to generate any sparks near the product.

– Do not remove the fuses with power on.

– Do not disconnect the power plug from the wall outlet with power on.

– It is recommended to locate the outlet in a high position. Place the cords so that they are not tangled.

Connecting the main power cable

When using ELB for 1 phase

ELB

MCCB

1(L) 2(N) L N F1 F2

Power Supply

The appearance of the unit may be different from the picture

depending on the model.

Cable clamp

Outdoor to indoor power cable

Cable clamp

Indoor Unit

Main power cable

Electrical

component box

Communication

cable

When using earth leakage circuit breaker (ELCB) for a single

phase

MCCB

ELCB

ELB

Main power

cable

Communication cable

Outdoor-to-indoor power cable

Earthing

Outdoor Unit

Indoor Unit

When using earth leakage circuit breaker (ELCB) for a 3-phase,

4-wire system (3P4W)

MCCB

ELCB

ELB

Main power

cable

Communication cable

Outdoor-to-indoor power cable

Outdoor Unit

Indoor Unit

Earthing

English

Installation Procedure

When using ELB for 1 phase and 3 phase

Electrical

component box

The appearance of the unit may be different from the

picture depending on the model.

Indoor Unit

Power

Supply

MCCB

ELB

1-phase

3-phase

Outdoor-to

indoor power cable

Outdoor-to

indoor power cable

Main power cable Communication

cable

Main power cable

Communication

cable

Cable tie

CAUTION

• You should connect the power cable into the power cable terminal and fasten it with a clamp.

• The unbalanced power must be maintained within 2% of supply rating.

If the power is unbalanced greatly, it may shorten the life of the condenser. If the unbalanced power is exceeded over 4% of

supply rating, the indoor unit is protected, stopped and the error mode indicates.

• To protect the product from water and possible shock, you should keep the power cables and the communication cable of the

indoor and outdoor units within ducts. (with appropriate IP rating and material selection for your application)

• Ensure that main supply connection is made through a switch that disconnects all poles, with contact gap of a least 3 mm.

• Devices disconnected from the power supply should be completely disconnected in the condition of overvoltage category.

• Keep distances of 50 mm or more between power cable and communication cable.If the distance of 50mm or more cannot be

kept, a double shielded cable (FROHH2R or LiYCY type) must be used, connected to earth on a single side.

• Do not let the power cable come into contact with the pipes inside the outdoor unit. If the power supply cable touches the

pipes, the vibration of the compressor is transferred to the pipes and can damage the power supply cables or pipes, creating the

danger of fire or explosion.

• Make sure that the place where the sheath of power supply cable is removed is inside the power supply box. If it is impossible,

you should connect the protection tube for power cable to the power supply box.

English

Installation Procedure

Main power terminal block specifications

• 1-phase terminal block specifications

AC071HCADKG (Unit: mm)

1(L) 2(N) L N

F1 F2

AC power: M4 screw

13.8

10.3

11.4

10.1

Communication: M4 screw

1(L) 2(N)

L N F1 F2

AC090/100/120/140/160/180HCADKG,

AC100/120/140/160/180HCAPKG

(Unit: mm)

16.3 12.0

11.4

10.1

• 3-phase terminal block specifications

F1 F2

1(L)

2(N)

L1(R) L2(S)

L3(T)

AC100/120/140/160/180HCADNG (Unit: mm)

9.9 14.2

11.4

10.1

28.016.6

L1(R)

L2(S) L3(T) L4(N)

10.1

13.1

1(L)

2(N)

OF1

OF2 R1

9.07. 5

AC200HCADNG (Unit: mm)

Main power cable specifications

The power cable is not supplied with air conditioner.

• Select the power supply cable in accordance with relevant local and national regulations.

• Wire size must comply with the applicable local and national code.

• Specifications for local wiring power cord and branch wiring are in compliance with local cord.

English

Installation Procedure

Model Outdoor Unit Input current (A) Power supply

Indoor Unit Outdoor Unit Hz

Voltage range (V) Outdoor Unit

Indoor

Unit

Total MCA(A) MFA(A)

Rated Min. Max. Cooling Heating

AC071HEHDKG

AC071HCADKG

220 to 240 198 264

16.0 16.0 2.8 18.8 18.8 20.0

AC071HE4DKG 16.0 16.0 1.5 17. 5 17. 5 20.0

AC071HE6DKG 16.0 16.0 2.0 18.0 18.0 20.0

AC090HEHDKG AC090HCADKG 24.0 24.0 2.8 26.8 26.8 30.0

AC100HEHDKG

AC100HCADKG

24.0 24.0 3.8 27.8 27.8 30.0

AC100HEHPKG 24.0 24.0 3.9 27.9 27.9 30.0

AC100HE4DKG 24.0 24.0 2.0 26.0 26.0 30.0

AC100HE6DKG 24.0 24.0 2.0 26.0 26.0 30.0

AC100HEHFKG AC100HCAPKG 24.0 24.0 3.9 27.9 27.9 30.0

AC120HEHDKG

AC120HCADKG

32.0 32.0 3.8 35.8 35.8 40.0

AC120HEHPKG 32.0 32.0 3.9 35.9 35.9 40.0

AC120HE4DKG 32.0 32.0 2.0 34.0 34.0 40.0

AC120HE6DKG 32.0 32.0 2.0 34.0 34.0 40.0

AC120HEHFKG AC120HCAPKG 32.0 32.0 3.9 35.9 35.9 40.0

AC140HEHDKG

AC140HCADKG

32.0 32.0 3.8 35.8 35.8 40.0

AC140HEHPKG 32.0 32.0 3.9 35.9 35.9 40.0

AC140HE4DKG 32.0 32.0 2.0 34.0 34.0 40.0

AC140HE6DKG 32.0 32.0 2.0 34.0 34.0 40.0

AC140HEHFKG AC140HCAPKG 32.0 32.0 3.9 35.9 35.9 40.0

AC160HEHPKG AC160HCADKG 32.0 32.0 4.2 36.2 36.2 40.0

AC160HEHFKG AC160HCAPKG 32.0 32.0 3.9 35.9 35.9 40.0

AC180HEHPKG AC180HCADKG 32.0 32.0 3.9 35.9 35.9 40.0

AC180HEHFKG AC180HCAPKG 32.0 32.0 3.9 35.9 35.9 40.0

AC100HEHDKG

AC100HCADNG

380 to 415 342 456.5

16.1 16.1 3.8 19.9 19.9 20.0

AC100HEHPKG 16.1 16.1 3.9 20.0 20.0 20.0

AC120HEHDKG

AC120HCADNG

16.1 16.1 3.8 19.9 19.9 20.0

AC120HEHPKG 16.1 16.1 3.9 20.0 20.0 20.0

AC140HEHDKG

AC140HCADNG

16.1 16.1 3.8 19.9 19.9 20.0

AC140HEHPKG 16.1 16.1 3.9 20.0 20.0 20.0

AC160HEHPKG AC160HCADNG 16.1 16.1 4.2 20.3 20.3 20.3

AC180HEHPKG AC180HCADNG 16.1 16.1 3.9 20.0 20.0 20.0

AC200HEHPKG AC200HCADNG 25.0 25.0 3.9 28.9 28.9 30.0

NOTE

1 Voltage range

• Units are suitable for use on electrical systems where voltage supplied to unit terminal is not below or above listed

range limits.

English

Installation Procedure

2 Maximum allowable voltage variation between phases is 2%.

3 Wire size & type must comply with current local, state, and

federal safety standards.

• Wire size: Based on the value of MCA.

• Wire type: 60245 IEC57(IEC) or H05RN-F(CENELEC)

grade or more.

4 MFA is used to select the circuit breaker and the ground

fault circuit interrupter (earth leakage circuit breaker).

5 MCA represents maximum input current.

• MFA represents capacity which may accept MCA

• Abbreviations

MCA: Min. Circuit Amps. (A)

MFA: Max. Fuse Amps. (A)

6 This equipment complies with IEC 61000-3-12 provided

that the short-circuit power Ssc is greater than or equal

to Ssc (*2) at the interface point between the user’s

supply and the public system. It is the responsibility

of the installer or user of the equipment to ensure, by

consultation with the distribution network operator if

necessary, that the equipment is connected only to a

supply with a short-circuit power Ssc greater than or equal

to Ssc(*2).

Model Ssc[MVA]

AC071HCADKG -

AC090HCADKG 0.5936

AC100HCADKG 0.5936

AC120HCADKG 0.7833

AC140HCADKG 0.7378

AC160HCADKG 0.7378

AC180HCADKG 0.7378

AC100HCAPKG 0.7378

AC120HCAPKG 0.7378

AC140HCAPKG 0.7378

AC160HCAPKG 0.7378

AC180HCAPKG 0.7568

AC100HCADNG 3.1598

AC120HCADNG 3.9028

AC140HCADNG 3.9028

AC160HCADNG 4.0861

AC180HCADNG 4.0861

AC200HCADNG 4.4265

Silence mode controller wiring diagram

AC071HCADKG

2Pin

(RED)

4Pin

(RED)

Non-voltage contact

External controller

AC090/100/120/140/160/180HCAD*G,

AC100/120/140/160/180HCAPKG

2Pin (RED)

4Pin(RED)

Non-voltage

contact

External controller

AC200HCADNG

2Pin (RED)

4Pin(RED)

Non-voltage

contact

External controller

English

Installation Procedure

Connecting the outdoor-to-indoor power cable

and the communication cable

1-phase

AC071HCADKG

1(L) 2(N)

F1 F2

Outdoor Unit

Cable clamp

Outdoor to indoor power cable

Main power cable

Communication

cable

Cable clamp

Indoor Unit

AC090/100/120/140/160/180HCADKG

AC100/120/140/160/180HCAPKG

For connecting the power and

communication cables

Indoor Unit

Outdoor Unit

Outdoor-to-indoor

power cable

Communication

cable

Cable tie

Main power cable

3-phase

AC100/120/140/160/180HCADNG

F1 F2

1(L)

2(N) L1(R) L2(S) L3(T) N

F1 F2

Indoor Unit

Outdoor Unit

Outdoor-to-indoor

power cable

Communication

cable

Cable tie

Main power cable

AC200HCADNG

L1(R) L2(S) L3(T) L4(N)

3 Phase 4 Wires power

cable (AC 380V)

Communication cable

Indoor Power

Indoor Unit

Outdoor Unit

NOTE

• After connecting the power cable to the terminal as seen in the

illustration, fix it with cable tie.(Cable ties are not provided.)

• Lay the electrical wiring so that the front cover does not rise up

when doing wiring work and attach the front cover securely.

English

Installation Procedure

• Ground wire for the indoor unit and outdoor unit connection cable

must be clamped to a soft copper tin-plated eyelet terminal with

M4 screw hole(NOT SUPPLIED WITH UNIT ACCESSORIES).

The appearance of the unit may be different from the picture

depending on the model.

DRED wiring diagram

AC071HCADKG

COMMON

DRED Controller

DRM3

DRM2

DRM1

AC090/100/120/140/160/180HCAD*G

AC100/120/140/160/180HCAPKG

COMMON

DRED Controller

DRM3

DRM2

DRM1

AC200HCADNG

COMMON

DRED Controller

DRM3

DRM2

DRM1

English

Installation Procedure

Outdoor-to-indoor power terminal specifications

• Connect the cables to the terminal board using the compressed ring terminal.

• Cover a solderless ring terminal and a connector part of the power cable and then connect it.

Silver solder

Nominal

dimensions

for cable

(mm²)

Nominal

dimensions

for screw

(mm)

B D d1 E F L d2 t

Standard

dimension

(mm)

Allowance

(mm)

Standard

dimension

(mm)

Allowance

(mm)

Standard

dimension

(mm)

Allowance

(mm)

Min.

(mm)

Min.

(mm)

Max.

(mm)

Standard

dimension

(mm)

Allowance

(mm)

Min.

(mm)

4/6

4 9.5

±0.2 5.6

+0.3

-0.2

3.4 ±0.2 6.0

5 20.0 4.3

+0.2

0.9

8 15.0 9 28.5 8.4

+0.4

10 8 15.0 ±0.2 7.1

+0.3

-0.2

4.5 ±0.2 7.9 9 30.0 8.4

+0.4

1.15

16 8 16.0 ±0.2 9.0

+0.3

-0.2

5.8 ±0.2 9.5 13 33.0 8.4

+0.4

1.45

8 12.0

±0.3 11.5

+0.5

-0.2

7.7 ±0.2 11.0

34.0

8.4

+0.4

1.7

8 16.5 13 8.4

8 16.0

±0.3 13.3

+0.5

-0.2

9.4 ±0.2 12.5

13 38.0 8.4

+0.4

1.8

8 22.0 13 43.0 8.4

50 8 22.0 ±0.3 13.5

+0.5

-0.2

11.4 ±0.3 1 7. 5 14 50.0 8.4

+ 0.4

1.8

70 8 24.0 ±0.4 17. 5

+0.5

-0.4

13.3 ±0.4 18.5 20 51.0 8.4

+ 0.4

2.0

• Connect the rated cables only.

• Connect using a driver which is able to apply the rated torque to the screws.

• If the terminal is loose, fire may occur caused by arc. If the terminal is connected too firmly, the terminal may be

damaged.

Tightening torque (kgf•cm)

M4 12.0 to 18.0

M5 20.0 to 30.0

M6 25.0 to 37.0

• 1 N·m = 10 kgf•cm

English

Installation Procedure

CAUTION

• When connecting cables, you can connect the cables to the

electrical part or connect them through the holes below

depending on the spot.

• Connect the communication cable between the indoor and

outdoor units through a conduit to protect against external

forces, and feed the conduit through the wall together with

refrigerant piping.

• Remove all burrs at the edge of the knock-out hole and

secure the cable to the outdoor knock-out using lining and

bushing with an electrical insulation such as rubber and

so on.

• Must keep the cable in a protection tube.

• Keep distances of 50mm or more between power cable and

communication cable.

• When the cables are connected through the hole, remove

the knock-out piece.

Outdoor-to-indoor power and communication

cables specifications

Indoor power supply

Power supply Max/Min (V) Indoor power cable

, 220-240V,

50 Hz

±10%

Cassette: 0.75mm²↑, 3wires

AC071/090/100/120/140HEHDKG

AC100/120/140/160/180HEHPKG

AC100/120/140/160HEHFKG

: 1.5mm²↑, 3wires

AC180HEHFKG

AC200HEHPKG

: 2.5mm²↑, 3wires

Communication cable

0.75 to 1.5mm², 2 wires

• Power supply cords of parts of appliances for outdoor use

shall not be lighter than polychloroprene sheathed flexible

cord. (Code designation IEC:60245 IEC 57 / CENELEC:

H05RN-F or IEC:60245 IEC 66 / CENELEC: H07RN-F)

• When installing the indoor unit in a computer room or

net work room, use the double shielded (tape aluminium

/polyester braid + copper ) cable of FROHH2R or LiYCY

type.

Step 4 Optional: Extending the power

cable

1 Prepare the following tools.

Tools Spec Shape

Crimping pliers MH-14

Connection sleeve

(mm)

20 x Ø6.5 (H x OD)

Insulation tape Width 19 mm

Contraction tube

(mm)

70 x Ø8.0 (L x OD)

2 As shown in the figure, peel off the shields from the

rubber and wire of the power cable.

• Peel off 20 mm of cable shields from the pre-

installed tube.

Power cable

(Unit: mm)

20 20

120

180

120

Pre-installed

tube for the

power cable

CAUTION

• For information about the power cable specifications

for indoor and outdoor units, refer to the installation

manual.

• After peeling off cable wires from the pre-installed

tube, insert a contraction tube.

English

Installation Procedure

3 Insert both sides of core wire of the power cable into the

connection sleeve.

• Method 1: Push the core wire into the sleeve from

both sides.

• Method 2: Twist the wire cores together and push it

into the sleeve.

Method 1

Connection sleeve

Method 2

CAUTION

• If cable wires are connected without using connecting

sleeves, their contact area becomes reduced, or

corrosion develops on the outer surfaces of the wires

(copper wires) over a long time. This may cause an

increase of resistance (reduction of passing current)

and consequently may result in a fire.

4 Using

a dedicated crimping tool, compress the two points

and flip it over and compress another two points in the

same location.

• The compression dimension should be 8.0 mm².

Compression

dimension

• After compressing it, pull both sides of the wire to make

sure it is firmly pressed.

Press twice on the front and

back (total of four times)

Press twice on the front and

back (total of four times)

10 mm 10 mm

Method 1 Method 2

5 Apply heat to the contraction tube to contract it.

Method 1

Contraction tube Contraction tube

Method 2

6 Wrap it with the insulation tape twice or more and

position your contraction tube in the middle of the

insulation tape.

Method 1 Method 2

40 mm

Insulation tape Insulation tape

35 mm

7 After tube contraction work is completed, wrap it with the

insulation tape to finish.

Three or more layers of insulation are required.

Method 1

IInsulation tape

Method 2

CAUTION

• Make sure that the connection parts are not exposed

to outside.

• Be sure to use insulation tape and a contraction tube

made of approved reinforced insulating materials that

have the same level of withstand voltage with the

power cable. (Comply with the local regulations on

extensions.)

WARNING

• In case of extending the electric wire, please DO NOT

use a round-shaped Pressing socket.

– Incomplete wire connections can cause electric

shock or a fire.

English

Installation Procedure

Step 5 Connecting the refrigerant pipe

Items

Maximum allowable length

Single Installation

Applicable outdoor

unit models

AC071HCADKG

AC090HCADKG

AC100HCAD*G

AC120HCAD*G

AC140HCAD*G

AC160HCAD*G

AC180HCAD*G

AC200HCADNG

AC100HCAPKG

AC120HCAPKG

AC140HCAPKG

AC160HCAPKG

AC180HCAPKG

Main pipe length (L

) 50m 85m

Max. height difference

between outdoor and

indoor units (h

)

30m 30m

Outdoor

Indoor Unit

indoor

• Temper grade and minimum thickness of the refrigerant

pipe

Outer diameter [mm] Minimum thickness [mm] Temper grade

Ø 6.35 0.7

C1220T-O

Ø 9.52 0.7

Ø 12.70 0.8

Ø 15.88 1.0

Ø 15.88 0.8

C1220T-1/2H

OR C1220T-H

Ø 19.05 0.9

Ø 22.23 0.9

The material specification (thickness) of the refrigerant pipes

must be in accordance with local legislation and standards.

CAUTION

• Be sure to use C1220T-1/2H (Semi-hard) pipe for more than

Ø 19.05 mm. If you use C1220T-O (Soft) pipe for Ø 19.05 mm,

the pipe may be broken, which can result in an injury.

• Provision shall be made for expansion and contraction

of long runs of piping.

Block the part.

Make at least one round:

It will reduce noise and vibration

• The appearance of the unit may be different from the

diagram depending on the model.

Storing refrigerant pipe

To prevent foreign materials or water from entering the pipe,

it is important to keep the refrigerant pipe sealed in clean

and dry condition during installation. Apply correct sealing

method depending on the environment.

Stored place Stored time Sealing type

Outside

Longer than one month Pipe pinch

Shorter than one month Taping

Inside - Taping

Refrigerant pipe brazing and safety information

• Important information for refrigerant pipe work

– Make sure that there is no moisture inside the pipe

– Make sure that there are no foreign materials and

impurities in the pipe.

– Make sure that there is no leak.

– Make sure to follow the instruction when brazing

and keeping the pipe.

• Nitrogen flushing brazing

– Use nitrogen gas when brazing the pipes as shown

in the picture.

– If you do not perform nitrogen flushing when

brazing the pipes, oxide may form inside the pipe. It

can cause the damage of the important parts such

as compressor, valves.

– Adjust the flow rate of the nitrogen flushing with a

pressure regulator to maintain 0.05m3/h or less.

– Wrap the bottom side of the service valve with a

wet cloth and weld it as shown in the figure. Since

water will evaporate during welding, pour some

water time to time. If not, O-ring and packing inside

the service valve may get damaged by a welding

fire and cause critical leakage.

English

Installation Procedure

Φ7 ↓

Nitrogen gas

High pressure hose

Pressure regulator

Flowmeter

Taping

Cap

Stop valve

ø 6.35 (1/4") copper pipe

Brazing part

Nitrogen gas

Direction of the pipe when brazing

• Brazing the pipe should be done with the pipe headed

downward or horizontally.

• Avoid brazing with the pipe headed upward.

CAUTION

Caution for welding the pipe to an outdoor unit (Only for

AC180HCAPKG, AC200HCADNG):

• When welding the pipe, the unit may get damaged by the

heat and flame from welding. Specifically outdoor's pipe

near by EEV,the fire would damage the EEV.Use a flame

proofing cloth to protect the unit from a welding fire or

flame.

• The O-ring and Teflon packing inside service valve may get

damaged by the heat from welding. Wrap the bottom side

of the service valve with a wet cloth and weld it as shown in

the illustration. Also, water dripping from the wet cloth may

interrupt the welding. Make sure the water does not drip

from the wet cloth.

• Make sure that connected pipes does not interrupt each

other or make contact with the product. (Vibration may

cause damage to the pipes.)

High pressure

(Liquid side)

Low pressure

(Gas side)

CAUTION

Pipe outlet

• Cut the pipe outlet to the exact pipe size. In addition,

remove foreign substances and burrs around the outlet.

• Perform cutting with only a cutter (ex. nipper)and

never tap with a hammer near the pipe outlet.

Otherwise, it may cause product damage such as

warping of the cabinet.

• After connecting the pipes with pipe outlet, plug the

space around the pipes.

• After connecting the pipes, proceed exactly as directed

in the guide to prevent interference with the internal

parts.

• Tighten the nuts to the specified torques. If

overtightened, the nuts could be broken so refrigerant

may leak.

• Protect or enclose refrigerant tubing to avoid

mechanical damage.

• After installing pipes, block the unused knock hole

to prevent small animal from entering. However, the

radiant heat hole(A) should be able to intake air.

Step 6 Optional: Cutting and flaring

the pipes

1 Make sure that you have the required tools available. (pipe

cutter, reamer, flaring tool, and pipe holder)

2 If you wish to shorten the pipes, cut it with a pipe cutter,

taking care to ensure that the cut edge remains at a 90°

angle with the side of the pipe. Refer to the illustrations

below for examples of edges cut correctly and incorrectly.

Pipe cutter

90°

Pipe

Oblique

Rough Burr

Wet towel

English

Installation Procedure

3 To prevent any gas from leaking out, remove all burrs at

the cut edge of the pipe, using a reamer.

4 Slide a flare nut on to the pipe and modify the flare.

Flare

Pipe

90° ±2°

R 0.4 to 0.8 mm

45° ±2°

Outer diameter (D) Depth (A) Flare dimension (L)

Ø6.35 mm 1.3 mm 8.7 to 9.1 mm

Ø9.52 mm 1.8 mm 12.8 to 13.2 mm

Ø12.70 mm 2.0 mm 16.2 to 16.6 mm

Ø15.88 mm 2.2 mm 19.3 to 19.7 mm

Ø19.05 mm 2.2 mm 23.6 to 24.0 mm

• 1 N·m = 10 kgf·cm

5 Check that the flaring is correct, referring to the

illustrations below for examples of incorrect flaring.

Correct Inclined Damaged

Surface

Cracked Uneven

Thickness

CAUTION

• Keep the piping length at a minimum to minimize the

additional refrigerant charge due to piping extension.

• When connecting the pipes, make sure that

surrounding objects do not interfere with or contact

them to prevent refrigerant leakage due to physical

damage.

• Make sure that the spaces where the refrigerant pipes

are installed comply with national gas regulations.

• Be sure to perform works such as additional refrigerant

charging and pipe welding under the conditions of

good ventilation.

• Be sure to perform welding and piping works for

mechanical connections under the conditions that the

refrigerant does not circulate.

• When reconnecting the pipes, make sure to perform

flared-jointing newly to prevent refrigerant leakage.

• When working on the refrigerant pipes and the flexible

refrigerant connectors, be careful that they are not

damaged physically by surrounding objects.

• For installation with handling the R-32 refrigerant,

use the special tools for the R-32 refrigerant (manifold

gauge, vacuum pump, charging hose, etc.).

• During tests never pressurize the appliances with

a pressure higher than the maximum allowable

pressure(as indicated on the nameplate of the unit).

• Never directly touch any accidental leaking refrigerant.

This could result in severe wounds caused by frostbite.

• Never install a dryer to this unit in order to guarantee

its lifetime.

• If the pipes require brazing ensure that OFN(Oxygen

Free Nitrogen) is flowing through the system.

• Nitrogen blowing pressure range is 0.02 to 0.05 MPa.

• If you need a pipe longer than specified in piping codes

and standards, you must add refrigerant to the pipe.

Otherwise, the indoor unit may freeze.

• While removing burrs, put the pipe face down to make

sure that the burrs do not get in to the pipe.

Step 7 Installing oil traps

Check the following list and install an oil trap.

• Based on cooling operation, install it on the gas side

pipe only.

• Install the oil trap only in between the outdoor unit

and the first branch joint and it should be installed at

every 10 m.

• Radius of curvature (R) on the oil trap are as follows;

Pipe diameter

(D, mm)

12.70 15.88 19.05 22.23 25.40 28.60 31.75

Radius of

curvature

(R, mm)

25 and

over

32 and

over

38 and

over

41 and

over

51 and

over

57 and

over

60 and

over

English

Installation Procedure

• Height of the oil trap (H): 4R ≤ H ≤ 6R

• When the indoor unit is installed at a higher place than

the outdoor unit

Oil trap (Install it at

every 10 m)

Indoor Unit

Outdoor Unit

Step 8 Connecting up and removing

air in the circuit

CAUTION

• When installing, make sure there is no leakage. When

recovering the refrigerant, ground the compressor first before

removing the connection pipe. If the refrigerant pipe is not

properly connected and the compressor works with the service

valve open, the pipe inhales the air and it makes the pressure

inside of the refrigerant cycle abnormally high. It may cause

explosion and injury.

• The air in the indoor unit and in the pipe must be evacuated. If

air remains in the refrigerant pipes, it will affect the compressor

either reduce cooling/heating capacity or lead to a malfunction.

• Use manifold gauge and vacuum pump as shown at the right

figure.

• Make sure that both manifold gauge and vacuum pump are

compatible with R-32.

• The piping length between the outdoor unit and the indoor

unit may not exceed the allowable piping length and height

difference.

• Use clean refrigerant pipe with no harmful ion, oxide, dust, iron

content or moisture inside pipe.

1 Connect each assembly pipe to the appropriate valve on the

outdoor unit and tighten the flare nut.

2 Referring to the illustration below, tighten the flare nut on

section D first manually and then with a torque wrench,

applying the following torque.

Outer Diameter (mm) Torque (N·m)

Ø 6.35 14 to 18

Ø 9.52 34 to 42

Ø 12.70 49 to 61

Ø 15.88 68 to 82

Ø 19.05 100 to 120

A (Gas)

Outdoor Unit

B (Liquid)

• 1 N·m = 10 kgf·cm

3 Connect the charging hose of low pressure side of manifold

gauge to the packed valve having a service port as shown at

the figure

CAUTION

• The designs and shape are subject to change according

to the model.

4 Open the valve of the low pressure side(A) of manifold

gauge anticlockwise.

AC071HCADKG

A(Gas)

B(liquid)

Vacuum

pump

English

Installation Procedure

AC090/100/120/140/160/180/200HCAD*G

AC100/120/140/160/180HCAPKG

Vacuum

pump

Outdoor Unit

A (Gas)

B (liquid)

5 Purge the air from the system using a vacuum pump for

about 10 minutes.

1) Evacuate until 4000 microns is achieved, for at least 10

minutes.

2) Close the gauge manifold valve, shut off the vacuum

pump, and remove the common hose.

3) Connect the hose to the nitrogen pressure regulator and

bleed the hose by opening the end of the common hose

closest to the manifold.

4) Open the high-pressure manifold valve and slowly bring

the system pressure to the atmosphere (101 kPa (14.64

psi)).

5) Close the manifold and nitrogen cylinder and remove

the common hose.

6) Reconnect the common hose to the vacuum pump.

Repeat steps 1) through 6), alternating between

breaking the vacuum with dry nitrogen and evacuating,

until system evacuation has occurred three times, to the

following vacuum levels: Evacuation Microns

Evacuation Microns

First 4000

Second 2000

Third 500

7) After evacuating to at least 500 microns for the third

time, close the gauge manifold valve and wait 10

minutes, making sure that the vacuum level in the

system does not decrease. If it does, a small leak

is likely. Repair the leak and repeat the evacuation

process.

6 Remove the hose of the low pressure side of the manifold

gauge.

7 Open the stop valve of both liquid and gas sides.

8 Mount the valve stem nuts and the service port cap to the

valve, and tighten them at the torque of 183 kgfꞏcm with

a torque wrench.

9 Check for gas leakage.

• At this time, especially check for gas leakage from

the 3-way valve’s stem nuts(A port), and from the

service port cap.

CAUTION

• Connect the indoor and outdoor units using pipes with

flared connections (not supplied). For the lines, use

insulated, unwelded, degreased and deoxidized copper

pipe, (Cu DHP type to ISO 1337 or UNI EN 12735-1),

suitable for operating pressures of at least 4.50 MPa and

for a burst pressure of at least 17.0 MPa. Copper pipe for

hydro sanitary applications is completely unsuitable.

• For sizing and limits (height difference, line length,

max. bends, refrigerant charge, etc.) see “Connecting

refrigerant pipe section”.

Step 9 Adding refrigerant (R-32)

Precautions on adding the R-32 refrigerant

In addition to the conventional charging procedure, the

following requirements shall be kept.

• Make sure that contamination by other refrigerants does

not occur for charging.

• To minimize the amount of refrigerant, keep the hoses and

lines as short as possible.

• The cylinders shall be kept upright.

• Make sure that the refrigeration system is earthed before

charging.

• Label the system after charging, if necessary.

• Extreme care is required not to overcharge the system.

• Before recharging, the pressure shall be checked with

nitrogen blowing.

• After charging, check for leakage before commissioning.

• Be sure to check for leakage before leaving the work area.

• The outdoor unit is loaded with sufficient refrigerant for

the standard piping. Thus, refrigerant must be added if the

piping is lengthened. This operation can only be performed

by a qualified refrigeration specialist. To determine the

quantity of refrigerant charge, see Calculating the quantity

of refrigerant to add on page 34.

English

Installation Procedure

1 Check if the stop valve is closed completely.

2 Charge the refrigerant through the service port of the

liquid stop valve.

NOTE

• Do not charge the refrigerant through the service port of the

gas stop valve.

3 If you have any difficulty charging the refrigerant as

described in the steps above, take the following steps:

a Open the liquid stop valve and gas stop valve.

b Operate the air conditioner by pressing the K2 button

on the outdoor unit PCB.

c After about 30 minutes, charge the refrigerant

through the service port of the gas stop valve.

Vacuum

Pump

Ref

Balance

Liquid side stop valve(service port)

Gas side stop valve(service port)

Indoor Unit

Outdoor Unit

Important information: regulation regarding

the refrigerant used

This product contains fluorinated greenhouse gases. Do not

vent gases into the atmosphere.

CAUTION

• Inform user if the system contains 5 tCO2e or more

of fluorinated greenhouse gases. In this case, it must

be checked for leakage at least once every 12 months,

according to regulation No. 517/2014. This activity must

be covered by qualified personnel only. In the case of

the situation above, the installer (or authorized person

with responsibility for final check) must provide a

maintenance book, with all the information recorded,

according to REGULATION (EU) No. 517/2014 OF THE

EUROPEAN PARLIAMENT AND OF THE COUNCIL of 16

April 2014 on fluorinated greenhouse gases.

Please fill in the following with indelible ink on this manual.

•

: The factory refrigerant charge of the product.

•

: The additional refrigerant amount charged in the

field.

•

+ : The total refrigerant charge.

Indoor Unit

Outdoor Unit

Unit kg tCO₂e

, a

, b

+ , c

Refrigerant type GWP value

R-32 675

• GWP: Global Warming Potential

• Calculating tCO₂e : kg x GWP/1000

NOTE

a Factory refrigerant charge of the product: see unit name

plate

b Additional refrigerant amount charged in the

field(Refer to the above information for the quantity

of refrigerant replenishment.)

c Total refrigerant charge

d Refrigerant cylinder and manifold for charging

CAUTION

• The filled-out label must be adhered in the proximity

of the product charging port (e.g. onto the inside of the

stop valve cover).

• Make sure that the total refrigerant charge does not

exceed (C), the maximum refrigerant charge, which

is calculated in the following formula: Maximum

refrigerant charge (C) = factory refrigerant charge (A) +

maximum additional refrigerant charge due to piping

extension (B).

English

Installation Procedure

(Unit: g)

Model A B C

AC071HCADKG 1700 750 2450

AC090HCADKG 2700 900 3600

AC100HCADKG 2700 900 3600

AC120HCADKG 2900 900 3800

AC140HCADKG 3100 2475 5575

AC160HCADKG 3500 2475 5975

AC180HCADKG 3500 2475 5975

AC100HCAPKG 3100 2475 5575

AC120HCAPKG 3500 2475 5975

AC140HCAPKG 3500 2475 5975

AC160HCAPKG 3500 2475 5975

AC180HCAPKG 5500 2750 8250

AC100HCADNG 2700 900 3600

AC120HCADNG 2900 900 3800

AC140HCADNG 3100 2475 5575

AC160HCADNG 3500 2475 5975

AC180HCADNG 3500 2475 5975

AC200HCADNG 5500 2750 8250

Charging the refrigerant under conditions of

liquid by using a liquid pipe

It is necessary for recharging under conditions of liquid. When

recharging refrigerant from the refrigerant cylinder to the

equipment, follow the instructions below.

• Before recharging, check whether the cylinder has

a siphon or not. There are two ways to recharge the

refrigerant.

Cylinder with siphon

Cylinder without siphon

siphon

Charge the refrigerant standing

the cylinder upright.

Charge the refrigerant turning

the cylinder upside down.

NOTE

• During the measuring operation of refrigerant quantity

added use an electronic balance. If cylinder doesn’t have

syphon, upset it.

Calculating the quantity of refrigerant to add

The quantity of additional refrigerant is variable according to

the installation situation. Thus, make sure the outdoor unit

situation before adding refrigerant. This operation can only be

performed by a qualified refrigeration specialist.

Single installation outdoor unit

Model

Factory

Charging

[g]

Additional refrigerant (g/m)

0 to 20 20 to 30 30 to 40 40 to 50 50 to 85

AC071HCADKG 1700 - 25 g/m over 20m

AC090HCADKG 2700 - 45 g/m over 30m

AC100HCADKG 2700 - 45 g/m over 30m

AC100HCADNG 2700 - 45 g/m over 30m

AC120HCADKG 2900 - 45 g/m over 30m

AC120HCADNG 2900 - 45 g/m over 30m

AC140HCADKG 3100 - 45 g/m over 30m

AC140HCADNG 3100 - 45 g/m over 30m

AC160HCADKG 3500 - 45 g/m over 30m

AC160HCADNG 3500 - 45 g/m over 30m

AC180HCADKG 3500 - 45 g/m over 30m

AC180HCADNG 3500 - 45 g/m over 30m

AC200HCADNG 5500 - 50 g/m over 30m

AC100HCAPKG 3100 - 45 g/m over 30m

AC120HCAPKG 3500 - 45 g/m over 30m

AC140HCAPKG 3500 - 45 g/m over 30m

AC160HCAPKG 3500 - 45 g/m over 30m

AC180HCAPKG 5500 - 50 g/m over 30m

Step 10 Performing the gas leak test

LEAK TEST WITH NITROGEN (before opening valves)

In order to detect basic refrigerant leaks, before recreating

the vacuum and recirculating the R-32, it is the responsibility

of the installer to pressurize the whole system with nitrogen

(using a cylinder with pressure reducer) at a pressure above

0.2MPa, less than 4MPa (gauge).

LEAK TEST WITH R-32 (after opening valves)

Before opening valves, discharge all the nitrogen into the

system and create vacuum. After opening valves check leaks

using a leak detector for refrigerant R-32.

Once you have completed all the connections, check for

possible leaks using leak detector specifically designed for

HFC refrigerants.

English

Installation Procedure

A (Gas)

B (liquid)

• The designs and shape are subject to change according

to the model.

Step 11 Connecting the drain hose to

the outdoor unit

1 Make space more than 80 mm between the bottom of the

outdoor unit and the ground for installation of the drain

hose, as shown in figure.

2 Insert the drain plug into the hole on the underside of the

outdoor unit.

3 Connect the drain hose to the drain plug.

4 Ensure that the drained water runs off correctly and safely.

80 mm 13 mm

5 Be sure to plug the rest of drain holes not connected with

drain plugs using drain caps.

AC071HCADKG

Drain plug (1EA)

AC090/100/120/140/160/180HCAD*G

AC100/120/140/160HCAPKG

Drain cap (5EA)

Drain plug (2EA)

AC180HCAPKG

AC200HCADNG

Drain cap (5EA)

Drain plug (1EA)

• When installing the product, make sure that the

rack is not placed under the drain hole.

• If the product is installed in a region of heavy snow,

allow enough separation distance between the

product and the ground.

Step 12 Insulating the refrigerant pipes

Once you have checked that there are no leaks in the system,

you can insulate the piping and hose.

To avoid condensation problems, place Acrylonitrile

Butadien Rubber separately around each refrigerant pipe.

Insulation is installed as a

whole without being cut

Insulation material

Gas pipe Liquid pipe

Vinyl tape

Gas pipe Liquid pipe

Vinyl tape

Insulation material

Insulation is cut

English

Installation Procedure

CAUTION

Install an insulation material as a whole piece without

cutting it.

NOTE

• When insulate the pipe, be sure to overlap the insulation.

CAUTION

• When insulating the pipe, use non-slit insulator.

Confirm that there are no gas leaks in the refrigerant piping

before insulating it.

1 Choosing appropriate insulation materials for the refrigerant

piping

• Insulate both the liquid and gas pipes, referring to the

standard insulation thickness for each pipe diameter

shown below.

• Normal Conditions 1 refers to temperatures under 27

℃ and humidity levels under 80%. In places that meet

Normal Conditions 2 or Highly Humid Conditions, use

thicker insulation materials, as shown below.

Pipe

Refrigerant

piping diameter

(mm)

Insulation material thickness (cooling/heating [mm])

General Conditions

1 (under 27

℃ and 80%)

Airconditioned

space

General Conditions 2,

(under 27 ℃ and 80%)

Nonairconditioned

space

Highly Humid

Conditions,

(27 ℃ and 80%

or higher)

Remarks

EPDM, NBR

Liquid

pipe

Ø6.35 to Ø9.52 9t ← ←

Heat resistant

temperature:

120 ℃

Ø12.7 to Ø19.05 13t ← ←

Gas

pipe

Ø9.52 to Ø19.05 13t 19t 25t

To install in any of the following places or environments,use

insulation materials of a thickness specified under General

Conditions 2.

– An air-conditioned place where humidity is high inside

the ceiling tiles

– A space where temperature/humidity difference is

large between the upper and lower air due to a high

ceiling (e.g., a large chapel/church, cinema, split-level

open lobby, lecture hall with theatre seating)

– A corridor or passageway with no air conditioning

system

– An old building with poor insulation

※ In buildings with non-open ceilings (e.g. flats,

houses,schools, offices, or commercial buildings), be sure

to use insulation materials of a thickness specified under

General Conditions 2.

To install in any of the following places or environments,

use insulation materials of a thickness specified under

Highly Humid Conditions.

– A location with high humidity, such as a seaside area, a

hot spring area, an area near a pond/river or a ridge (a

building that is partially covered in earth and sand)

– A location where morning dew occurs frequently (e.g.,

once every three days)

– Sauna, swimming pool or restaurant

– Installation inside a ceiling that is not airconditioned

where there is inflow of a large amount of moisture

(plumbing installed along a corridor or near the

entrance of a hall of residence or studio flat)

– A place where humidity is high due to an insufficient

ventilation system in the space where plumbing is

installed

– A room on a semi-basement floor

※ If you are not sure which insulating material to use, choose

material used in a place with high humidity.

※ If the purpose of the room is subject to change, reconsider

the thickness of insulating material.

※ Use the specified insulating material only.

※ If installed in a location outside the above conditions, use

insulation materials of a thickness specified under Highly

Humid Conditions, taking into account the extremely high

temperature and humidity in summer.

※ Use flame-retardant insulation materials.

※ When installing PE insulation materials or insulation

materials made by HEATRON, make sure the thickness is

1.6 times greater than the standard thickness shown in the

table above.

High humidity locations such as shorelines, hot springs,

lake or riversides, and ridges (when part of the building is

covered by earth and sand)

Restaurant ceiling, sauna, swimming pool etc.

Ceilings frequently exposed to moisture and cooling are

not covered. For example, pipes installed at a corridor of a

dormitory and studio or near an exit that opens and closes

frequently.

Places (where the pipes are installed) that are highly humid

due to a lack of ventilation.

English

Installation Procedure

Step 13 Checking the earthing

If the power distribution circuit does not have a earthing or

the earthing does not comply with specifications, an earthing

electrode must be installed. The corresponding accessories

are not supplied with the air conditioner.

1 Select an earthing electrode that complies with the

specifications given in the illustration.

2 Connect the flexible hose to the flexible hose port.

• In damp hard soil rather than loose sandy or gravel

soil that has a higher earthing resistance.

• Away from underground structures or facilities,

such as gas pipes, water pipes, telephone lines and

underground cables.

• At least two metres away from a lightening

conductor earthing electrode and its cable.

NOTE

• The earthing wire for the telephone line cannot be used

to ground the air conditioner.

Carbon plastic

30 cm

50 cm

To grounding screw

Steel core

Terminal M4

PVC-insulated

green/yellow

wire

3 Finish wrapping insulating tape around the rest of the

pipes leading to the outdoor unit.

4 Install a green/yellow coloured earthing wire:

• If the earthing wire is too short, connect an

extension lead in a mechanical way and wrap it with

insulating tape (do not bury the connection).

• Secure the earthing wire in position with staples.

NOTE

• If the earthing electrode is installed in an area with

heavy traffic, its wire must be connected securely.

5 Carefully check the installation by measuring the earthing

resistance with a earth resistance tester. If the resistance

is above the required level, drive the electrode deeper into

the ground or increase the number of earthing electrodes.

6 Connect the earthing wire to the electrical component

box inside of the outdoor unit.

Step 14 Performing final check and

trial operation

AC071HCADKG

AC090/100/120/140/180HCAD*G,

AC100/120/140/160/180HCAPKG

AC200HCADNG

1 Check the power supply between the outdoor unit and the

auxiliary circuit breaker.

• 1 phase power supply : L, N

• 3 phase power supply : R, S, T, N

2 Check the indoor unit.

a Check that you have connected the power and

communication cables correctly. (If the power cable

and communication cables one mixed up or connected

incorrectly, the PCB will be damaged.)

b Check that the thermistor sensor, drain pump/hose, and

display are connected correctly.

English

Installation Procedure

3 Press K2 on the outdoor unit PCB to run the test mode and stop.

AC071HCADKG

Key Push type Mode

Display

SEG 1 SEG 2 SEG 3 SEG 4

K1 Short

1st Heating test mode

2nd Defrost test mode ¹⁾

3rd End Key operation

K2 Short

1st Cooling test mode

2nd Inverter check ²⁾

3rd Pump down

4th Unusual

5th

Inverter Fault Detection

(Comp#1) ³⁾

6th Auto trial operation

7th Unusual

8th

Inverter Fault Detection

(Fan#1) ³⁾

9th End Key operation

K3 Short 1st

Reset

Release Eco mode

AC090/100/120/140/180HCAD*G

AC100/120/140/160/180HCAPKG

Key Push type Mode

Display

SEG 1 SEG 2 SEG 3 SEG 4

K1 Short

1st Heating test mode

2nd Defrost test mode ¹⁾

3rd End Key operation

K2 Short

1st Cooling test mode

2nd Inverter check

3rd Pump down

4th Unusual

5th

Inverter Fault

Detection (Comp#1) ³⁾

6th Auto trial operation

7th Unusual

8th End Key operation

K3 Short 1st

Reset

Release Eco mode

AC200HCADNG

Key Push type Mode

Display

SEG 1 SEG 2 SEG 3 SEG 4

K1 Short

1st Heating test mode

2nd Defrost test mode ¹⁾

3rd End Key operation

K2 Short

1st Cooling test mode

2nd Inverter check

3rd Pump down

4th Unusual

5th

Inverter Fault

Detection (Comp#1) ³⁾

6th Auto trial operation

7th Auto check

8th

Inverter Fault

Detection(Fan#1) ³⁾

9th

Inverter Fault

Detection(Fan#2) ³⁾

10th Discharge operation

11th End Key operation

K3 Short 1st

Reset

Release Eco mode

¹⁾ Defrost test mode

Condition 1: The outdoor temperature is below 10°C.

Condition 2: All the temperature conditions should meet the

defrost conditions.

²⁾ To use the inverter check function, you must use the

inverter checker.

³⁾ Indication on the display and action to take when an

inverter fault is detected

English

Installation Procedure

Comp#1(INV#1) FAN#1 * FAN#2 **

Action to take

SEG 1 SEG 2 SEG 3 SEG 4 SEG 1 SEG 2 SEG 3 SEG 4 SEG 1 SEG 2 SEG 3 SEG 4

Fault detection is in

progress

PBA defect: Replace

the PBA

Check

Manual inspection is

required

Going into fault detection

mode failed

Try fault detection

again

* : It is displayed on AC071HCADKG and AC200HCADNG model.

** : It is only displayed on AC200HCADNG model

4 After 12 minutes operation check discharged air temperature of indoor unit

• Cooling mode (indoor unit check)  Inlet air temp. - Outlet air temp.: From 10°C to12°C

• Heating mode (indoor unit check)  Outlet air temp. - Inlet air temp.: From 11°C to 14°C

• In heating mode, the indoor fan motor can remain off to avoid cold air blown into air-conditioned space.

5 How to reset the power supply of the outdoor unit and deactivate the eco mode (standby mode):

• Press K3 button over 1 sec to reset the power supply of the outdoor unit and deactivate the eco mode (standby

mode).

※ Eco mode : Standby for minimizing power consumption

6 View mode: When the K4 switch is pressed, you can see information about our system state as below.

• For a function that is not supported, "-" is shown for SEG2, SEG3 or SEG4.

K4 short push Display contents SEG1 SEG2 SEG3 SEG4 Unit

1 Order frequency 1 Hundreds digit Tens digit Units digit Hz

2 Current frequency 2 Hundreds digit Tens digit Units digit Hz

3 The number of preset indoor units 3 Hundreds digit Tens digit Units digit EA

4 Ambient temperature sensor 4

Hundreds digit

or "-" ¹⁾

Tens digit Units digit ℃ or ℉ ²⁾

5 Compressor discharge sensor 5 Hundreds digit Tens digit Units digit ℃ or ℉ ²⁾

6 Eva-Mid sensor 6

Hundreds digit

or "-" ¹⁾

Tens digit Units digit ℃ or ℉ ²⁾

7 Condenser sensor 7

Hundreds digit

or "-" ¹⁾

Tens digit Units digit ℃ or ℉ ²⁾

8 Current 8 Tens digit Units digit The first place of decimals A

9 Outdoor fan RPM 9 Thousands digit Hundreds digit Tens digit rpm

10 Target discharge temperature A

Hundreds digit

or "-" ¹⁾

Tens digit Units digit ℃ or ℉ ²⁾

11 EEV B Hundreds digit Tens digit Units digit step

12 The capacity sum of indoor units C Tens digit Unit digit The first place of decimals

kW or

kBtu/h ³⁾

13 Protective control D

0: Cooling

1: Heating

Protective control

0: No Protective control

1: Freezing

2: Non-stop defrosting

3: Over-load

4: Discharge

5: Total electric current

Frequency status

0: Normal

1: Hold

2: Down

3: Up_limit

4: Down_limit

English

Installation Procedure

14 IPM temperature E

Hundreds digit

or "-" ¹⁾

Tens digit Units digit ℃ or ℉ ²⁾

The number of connected

indoor units

F Hundreds digit Tens digit Units digit EA

16 ESC EEV(CAM) G Hundreds digit Tens digit Units digit step

17 ESC IN sensor H

Hundreds digit

or "-" ¹⁾

Tens digit Units digit ℃ or ℉ ²⁾

18 ESC OUT sensor I

Hundreds digit

or "-" ¹⁾

Tens digit Units digit ℃ or ℉ ²⁾

19 View mode end BLANK BLANK BLANK BLANK

¹⁾ Sub-zero temperatures are expressed as a minus, instead of hundreds digit.

²⁾ The temperature unit can be switched between Celsius and Fahrenheit through Setting outdoor unit option switches. (Default

value is Celsius.)

³⁾ If the temperature unit is set to Fahrenheit through Setting outdoor unit option switches, the value is expressed in the unit of kBtu/h.

AC071HCADKG

Display contents SEG1 SEG2 SEG3 SEG4

long

push

- Main micom version Year (Dec) Month (Hex) Date (Tens digit) Date (Units digit)

After short push 1 Inverter micom version Year (Dec) Month (Hex) Date (Tens digit) Date (Units digit)

After short push 2 Fan SW version Year (Dec) Month (Hex) Date (Tens digit) Date (Units digit)

After short push 3 E2P version Year (Dec) Month (Hex) Date (Tens digit) Date (Units digit)

After short push 4 Page 1 - AUTO Page 2 - (SEG1,2 - Indoor : "A","0") (SEG3,4 - Address : ex) 00)

After short push 5 Page 1 - MANU Page 2 - (SEG1,2 - Indoor : "A","0") (SEG3,4 - Address : ex) 00)

Long push K4 (Main micom ver.) → short push 1 more (Inv. micom ver.) → short push 1 more(Fan SW ver.) → short push 1 more (E2P. ver.) →

short push 1 more (Automatic address) → short push 1 more (Manual address) → short push 1 more (Main micom ver.) → ....... →

Long push K4 (View mode end)

AC090/100/120/140/180HCAD*G , AC100/120/140/160/180HCAPKG

Display contents SEG1 SEG2 SEG3 SEG4

long

push

- Main micom version Year (Dec) Month (Hex) Date (Tens digit) Date (Units digit)

After short push 1 Inverter micom version Year (Dec) Month (Hex) Date (Tens digit) Date (Units digit)

After short push 2 E2P version Year (Dec) Month (Hex) Date (Tens digit) Date (Units digit)

After short push 3 Page1 -AUTO Page2 - (SEG1,2 - Indoor unit: "A","0")(SEG3,4 - Address: ex) 00)

After short push 4 Page1 -MANU Page2 - (SEG1,2 - Indoor unit: "A","0")(SEG3,4 - Address: ex) 00)

Long push K4 (Main micom ver.) → short push 1 more (Inv. micom ver.) → short push 1 more (E2P. ver.) →

short push 1 more (Automatic address) → short push 1 more (Manual address) → short push 1 more (Main micom ver.) → ....... →

Long push K4 (View mode end)

English

Installation Procedure

AC200HCADNG

Display contents SEG1 SEG2 SEG3 SEG4

long

push

- Main micom version Year (Dec) Month (Hex) Date (Tens‘ digit) Date (Unit digit)

After short push 1 Inverter micom version Year (Dec) Month (Hex) Date (Tens‘ digit) Date (Unit digit)

After short push 2 Fan1 micom version Year (Dec) Month (Hex) Date (Tens‘ digit) Date (Unit digit)

After short push 3

Fan2 micom version Year (Dec) Month (Hex) Date (Tens‘ digit) Date (Unit digit)

After short push 4

E2P version Year (Dec) Month (Hex) Date (Tens‘ digit) Date (Unit digit)

After short push 5 Auto address

Page1 -AUTO Page2 - (SEG1,2 - Indoor unit: "A","0")(SEG3,4 - Address: ex) 00)

After short push 6 Manual address

Page1 -MANU Page2 - (SEG1,2 - Indoor unit: "A","0")(SEG3,4 - Address: ex) 00)

Long push K4 (Main micom ver.) → short push 1 more (Inv. micom ver.) → short push 1 more (Fan1 ver.) → short push 1 more (Fan1

ver.) → short push 1 more (E2P. ver.) → short push 1 more (Automatic address) → short push 1 more (Manual address) → short push

1 more (Main micom ver.) → ....... → Long push K4 (View mode end)

Setting outdoor unit option switch and address manually

a Setting the option

• Press and hold K2 to enter the option setting. (Only available when the operation is stopped)

– If you enter the option setting, display will show the following.

– Seg 1 and Seg 2 will display the number for selected option.

– Seg 3 and Seg 4 will display the number for set value of the selected option.

• If you have entered the option setting, you can shortly press the K1 switch to adjust the value of Seg 1, and Seg 2

and select the desired option.

Example)

• If you have selected desired option, you can shortly press the K2 switch to adjust the value of the Seg 3, Seg 4 and

change the function for the selected option.

Example)

• After selecting the function for options, press and hold the K2 switch for 2 seconds. Edited value of the option will

be saved when entire segments blinks and tracking mode begins.

English

Extra procedures

Option item SEG1 SEG2 SEG3 SEG4 Function

Channel address 0 0

A U

Automatic setting (Factory

default)

00~15 Manual setting

Snow accumulation

prevention control

0 1

0 0

Disabled (Factory default)

0 1 Enabled

Step for Silence mode 0 2

0 0

Disabled (Factory default)

0 1 Step1

0 2 Step2

0 3 Step3

Type of

Silence mode

0 3

0 0

Automatic Silence mode

(Factory default)

0 1 Manual Silence mode

Temperature unit 0 4

0 0

Celsius

(default)

0 1 Fahrenheit

Compressor carrier

frequency

0 5

0 0 Not applicable(default)

0 1 Option1

Current restriction

rate ¹⁾

0 6

0 0

100 % (Factory default)

0 1 95%

0 2 90%

0 3 85%

0 4 80%

0 5 75%

0 6 70%

0 7 65%

0 8 60%

0 9 55%

1 0 50%

1 1 100%

Dedicated mode for

cooling/heating

0 7

0 0

Cooling / Heating operation

(default)

0 1 Cooling operation only

0 2

Heating operation only

Heating max.

frequency-

Temperature off set

0 8

0 0

Disable (Factory default)

0 1

-5℃

0 2

-10℃

0 3

-15℃

0 4

+5℃

0 5

+10℃

0 6

+15℃

Cumulative

defrosting time

0 9

0 0

Disable (Factory default)

0 1

90 min.

0 2

60 min.

0 3

40 min.

Defrosting

frequency offset

1 0

0 0

Disable (Factory default)

0 1

-5 Hz

0 2

-10 Hz

0 3

-15 Hz

Defrosting-off

temperature offset

1 1

0 0

(Factory default)

0 1

+3℃

0 2

+6℃

0 3

+9℃

¹⁾ Current restriction rate : When restriction option is set,

cooling and heating performance may decrease.

CAUTION

• Edited option will not be saved if you do not end the

option setting as explained in above instruction.

※ While you are setting the option, you may press and hold

the K1 button to reset the value to previous setting.

※ If you want to restore the setting to factory default, press

and hold the K4 button while you are in the option setting

mode.

– If you press and hold the K4 button, setting will be

restored to factory default but it doesn't mean that

restored setting is saved. Press and hold the K2

button. When the segments shows that tracking

mode is in progress, setting will be saved.

Pumping down refrigerant

WARNING

• After installing the product, be sure to perform leak

tests on the piping connections. After pumping down

refrigerant to inspect or relocate the outdoor unit,

be sure to stop the compressor and then remove the

connected pipes.

– Do not operate the compressor while a valve is

open due to refrigerant leakage from a pipe or an

unconnected or incorrectly connected pipe. Failure

to do so may cause air to flow into the compressor

and too a high pressure to develop inside the

refrigerant circuit, leading to an explosion or

product malfunction.

Pump-down is an operation intended to collect all the

system refrigerant in the outdoor unit. This operation must

be carried out before disconnecting the refrigerant pipe in

order to avoid refrigerant loss to the atmosphere.

1 Turn the system on in cooling with fan operating at high

velocity and then let the compressor run for more than

5 minutes. (Compressor will immediately start, provided

3 minutes have elapsed since the last stop.)

2 Release the valve caps on High and Low pressure side.

3 Use L-wrench to close the valve on the high pressure

side.

4 After approximately 2minute, close the valve on the low

pressure side.

5 Stop operation of the air conditioner by pressing the

(Power) button on the indoor unit or remote control.

6 Disconnect the pipes.

Extra procedures

English

Extra procedures

AC071HCADKG

B (liquid)

A (Gas)

AC090/100/120/140/180/200HCAD*G

AC100/120/140/160/180HCAPKG

B (liquid)

A (Gas)

Relocating the indoor and outdoor units

1 Pump down refrigerant. See Pumping down refrigerant

on page 42.

2 Disconnect the power supply only after rendering the

system powerless from the mains power.

3 Disconnect the assembly cable from the indoor and

outdoor units.

4 Remove the flare nuts connecting the indoor units and the

pipes. At this time, cover the pipes of the indoor unit and

the other pipes using a cap or vinyl plug to avoid foreign

material entering.

5 Disconnect the pipes connected to the outdoor units.

At this time, cover the valve of the outdoor units and

the other pipes using a cap or vinyl plug to avoid foreign

material entering.

Note: Make sure you do not bend the connection pipes in

the middle and store together with the cables.

6 Move the indoor and outdoor units to a new location.

7 Remove the mounting plate for the indoor unit and move

it to a new location.

Using the stop valve

Opening the stop valve

1 Open the cap and turn the stop valve anticlockwise by

using a hexagonal wrench.

2 Turn it until the axis is stopped.

AC071/090/100/120/140/180HCAD*G ,

AC100/120/140/160HCAPKG

Tightening torque for charging port cap

(Refer to the table)

R-32: Thread of the screw - 1/2-20UNF

Spindle

Tightening torque for body cap

(Refer to the table)

Charging Core

AC180HCAPKG, AC200HCADNG

Spindle

Tightening torque for body cap

(Refer to the table)

Charging core

Tightening torque for charging port cap

(Refer to the table)

R-32 : 1/2-20UNF

3 Tighten the cap securely.

Outer Diameter (mm)

Tightening torque

Body cap (N·m) Charging port cap (N·m)

Ø 6.35 20 to 25

10 to 12

Ø 9.52 20 to 25

Ø 12.70 25 to 30

Ø 15.88 30 to 35

Over Ø 19.05 35 to 40

(1 N·m=10 kgf·cm)

English

Installation Procedure

Extra procedures

NOTE

• Do not apply excessive force to the stop valve and always

use special instruments. Otherwise, the stopping box

can be damaged and the back sheet can leaks.

• If the watertight sheet leaks, turn the axis back by half,

tighten the stopping box, then check the leakage again.

If there is no leakage any more, tighten the axis entirely.

Closing the stop valve

1 Remove the cap.

2 Turn the stop valve clockwise by using a hexagonal

wrench.

3 Tighten the axis until the valve reached the sealing point.

4 Tighten the cap securely.

CAUTION

• When you use the service port, always use a charging

hose, too.

• Check the leakage of refrigerant gas after tightening

the cap.

• Must use a spanner and wrench when you open/tighten

the stop valve.

Performing the gas leak tests for repair

When repairing the refrigerant circuit, the following

procedure must be followed to avoid flammability.

1 Remove the refrigerant.

2 Flush the system with nitrogen.

3 Repeat the previous step several times until no

refrigerant is within the system.

4 Perform the repair work.

5 Conduct a pressure test.

6 Purge the refrigerant circuit with inert gas.

7 Perform vacuuming.

8 Charge with refrigerant.

9 Perform a leak test.

10 It is recommended to perform a second leak test within

one month.

CAUTION

• Compressed air or oxygen shall not be used.

• Flush the system with nitrogen, pressurize the refrigerant

circuit until the working pressure is reached, ventilate to

the atmosphere, and then pull down to a vacuum state.

• For the final nitrogen blowing charge, the system shall be

ventilated down to atmospheric pressure.

• The procedure is vital in case of brazing on the piping.

• Make sure that the outlet of the vacuum pump is not

close to any ignition sources and there is ventilation

available.

• Do not apply any permanent inductive or capacitance

loads to the circuit without ensuring that this will not

exceed the permissible voltage and current permitted for

the air conditioner.

Decommissioning

The following requirements must be fulfilled before and

while taking the decommissioning procedure:

• Only qualified, licensed professionals shall perform

refrigerant recovery and decommissioning. Before

decomissioning, the worker shall become familiar with

the product.

• The entire refrigerant charge shall be recovered safely.

• Before starting the process, oil and refrigerant samples

shall be taken just in case analysis is required for reuse.

• Before starting the process, a power supply must be

available.

1 Be familiar with the equipment details.

2 Isolate the system electrically.

3 Before starting the process, make sure that:

• Any mechanical equipment is available for handling

refrigerant cylinders.

• All PPE (personal protective equipment) is available for

servicing.

• The recovery process shall be supervised by a competent

person.

• The recovery equipment and cylinders comply with the

standards. Only approved cylinders, with pressure relief

valves, for the type of refrigerant shall be used.

4 Pump down the refrigeration system, if possible.

5 If vacuuming is not possible, make a manifold so that

refrigerant can be easily removed from the parts of the

system.

6 Make sure that the cylinders are placed on the scales

before recovery.

7 Run the recovery system following the manufacturer’s

instructions.

8 Do not overcharge the cylinders. (No more than 80 %)

9 Keep the cylinder within the maximum working

pressure, even temporarily.

10 After charging, make sure that the cylinders and the

equipment are promptly removed from the site and all

isolation valves are closed.

11 Recovered refrigerant shall not be mixed or reused. It

shall be processed according to national, state, and local

regulations.

12 After decommissioning, the system shall be labeled

stating that it has been decommissioned. The label shall

be dated and signed.

13 Ensure that there are labels on the equipment indicating

the equipment contains flammable refrigerant.

English

Appendix

Troubleshooting

The table below lists the self-diagnostic routines. For some of the error codes, you must contact an authorized service center.

If an error occurs during the operation, it is displayed on the outdoor unit PCB LED, both MAIN PCB and INVERTER PCB.

No. Error Code Meaning Remarks

1 E108 Error due to duplicated communication address Check on repeated indoor unit main address

2 E116 R-32 detection sensor 'Short' or 'Open' or 'Abnormal signal' error.

1. Check R-32 sensor connector.

2. Check R-32 sensor wire.

3. Check R-32 sensor.

4. Change R-32 sensor.

3 E118 Indoor fan controller PCB overheat error Check Indoor fan controller PCB

4 E121 Error on room temperature sensor of indoor unit (Short or Open) Indoor unit Room Thermistor Open/Short

5 E122 Error on EVA IN sensor of indoor unit (Short or Open) Indoor unit EVA_IN Thermistor Open/Short

6 E123 Error on EVA OUT sensor of indoor unit (Short or Open) Indoor unit EVA_OUT Thermistor Open/Short

7 E153 Error on float switch (2nd detection) Indoor unit Float Switch Open/Short Drain Pump operation Check

8 E154 Indoor fan error Check on indoor unit indoor Fan operation

9 E162 Outdoor unit EEPROM Read/Write error (H/W) Check Outdoor EEPROM PBA

10 E163 Outdoor unit EEPROM Read/Write error (Option) Check Outdoor EEPROM data

11 E198 Error on thermal fuse of indoor unit (Open) Thermal Fuse Open Check of indoor unit Terminal Block

12 E201

Communication error between the indoor unit and outdoor unit (Pre-

tracking failure or when the actual number of indoor units are different

from the indoor unit quantity setting on the outdoor unit)

Error due to communication tracking failure after initial power is

supplied (The error occurs regardless of the number of units.)

Check indoor quantity setting in outdoor

13 E202

Communication error between indoor unit and outdoor unit (When

there is no response from indoor units after tracking is completed)

Check electrical connection and setting between indoor unit and

outdoor unit

14 E203

Communication error between the outdoor unit and main micom (For

PF #4 to #6 controllers, error will be determined from the time when

the compressor is turned on.)

Check electrical connection and setting between outdoor unit

MAIN PBA - INVERTER PBA

15 E205

Main PBA - other PBA Communication error

(All other PBA communication error)

1. Check Main PBA connectors

2. Check other PBA connectors

3. Change Mian PBA

16 E206

Main PBA - other PBA communication error

(Some of PBA communication)

C002 : Fan PCB communication error

C003 : INV1 communication error

1. Check Main PBA connectors

2. Check other PBA connectors

3. Change other PBA

17 E221 Error on outdoor temperature sensor (Short or Open) Check Outdoor sensor Open / Short

18 E231 Error on outdoor COND OUT sensor (Short or Open) Check Cond-Out sensor Open / Short

19 E251 Error on discharge temperature sensor of compressor 1 (Short or Open) Check Discharge sensor Open / Short

20 E320 Error on OLP sensor (Short or Open) Check OLP sensor Open / Short

21 E321 Error on ESC IN temperature sensor (Short or Open) Check ESC IN sensor Open / Short

22 E322 Error on ESC OUT temperature sensor (Short or Open) Check ESC OUT sensor Open / Short

23 E346 Error due to operation failure of Fan2 Fan2 error

24 E347 Motor wire of Fan2 is not connected Fan2 error

25 E348 Lock error on Fan2 of outdoor unit Fan2 error

26 E353 Error due to overheated motor of outdoor unit’s Fan2 Fan2 error

27 E355 Error due to overheated IPM of Fan2 Fan2 error

28 E378 Error due to overcurrent of Fan2 Fan2 error

29 E381 INVERTER PCB overheat error Check Outdoor Inverter PBA

Appendix

English

Appendix

No. Error Code Meaning Remarks

30 E383 Outdoor Fan#1 PCB overheat error

1. Change motor

2. Change INV PCB

31 E384 Outdoor Fan#2 PCB overheat error

1. Change motor

2. Change INV PCB

32 E386 Over-voltage/low-voltage error of Fan2 Fan2 error

33 E387 Hall IC connection error of Fan2 Fan2 error

34 E389 V-limit error on Fan2 Fan2 error

35 E391 Fan2 EEPROM CheckSum error

36 E393 Output current sensor error of Fan2 Fan2 error

37 E396 DC voltage sensor error of Fan2 Fan2 error

38 E399 IPM temperature sensor error of Fan2 Fan2 error

39 E403 Compressor down due to freeze protection control Check Outdoor Cond.

40 E404 System stops due to overload protection control Check Comp. when it starts

41 E416 System stops due to discharge temperature -

42 E422 Blockage detected on high pressure pipe during cooling operation

1. Check if the service valve is open

2. Check for refrigerant leakage (pipe connections, heat

exchanger) and charge refrigerant if necessary

3. Check if there's any blockage on the refrigerant cycle (indoor

unit/outdoor unit)

4. Check if additional refrigerant has been added after pipe

extension

43 E425 Reverse phase or open phase Check whether 3 phase is reversed or opened.

44 E440

Heating operation restricted at outdoor temperature over Theat_high

value (default:30°C)

1. Check the range of temperature limited for heating operation

2. Check the outdoor temperature sensor

45 E441

Cooling operation restricted at outdoor temperature below Tcool_low

value (default:0°C)

1. Check the range of temperature limited for cooling operation

2. Check the outdoor temperature sensor

46 E446 Outdoor Fan#1 motor Operation error

1. Change motor

2. Change INV PCB

47 E447 Outdoor Fan#1 motor wire disconnection error

1. Check motor connector

2. Change motor

3. Change INV PCB

48 E448 Lock error on Fan1 of outdoor unit Fan1 error

49 E453 Error due to overheated motor of outdoor unit’s Fan1 Fan1 error

50 E455 Outdoor Fan#1 IPM overheat error

1. Change motor

2. Change INV PCB

51 E458 Fan speed error FAN1 ERROR

52 E461 Error due to operation failure of inverter compressor -

53 E462 System stops due to full current control -

54 E463 Over current trip / PFC over current error Check OLP sensor

55 E464 IPM Over Current(O.C)

1. Check if the service valve is open

2. Check the state of refrigerant

3. Check if connecting wire and the pipe are OK

4. Check the compressor

56 E465 Comp. Overload error -

57 E466 DC-Link voltage under/over error Check AC Power and DC Link Voltage

58 E467

Error due to abnormal rotation of the compressor or unconnected wire

of compressor

Check Comp wire

59 E468 Error on current sensor (Short or Open) Check Outdoor Inverter PBA.

60 E469 Error on DC-Link voltage sensor (Short or Open) -

61 E470 Outdoor unit EEPROM Read/Write error (Option) Check Outdoor EEPROM Data

62 E471 Outdoor unit EEPROM Read/Write error (H/W) Check Outdoor EEPROM PBA

Appendix

English

Appendix

No. Error Code Meaning Remarks

63 E474 Error on IPM Heat Sink sensor of inverter 1 (Short or Open) Check Outdoor Inverter PBA.

64 E475 Error on inverter fan 2 FAN2 ERROR

65 E478 Outdoor Fan#1 motor overcurrent error

1. Change motor

2. Change INV PCB

66 E483 Overvoltage of H/W detect DC link Check AC Power

67 E484 PFC Overload (Over current) Error Check Outdoor Inverter PBA.

68 E485 Error on input current sensor of inverter 1 (Short or Open) Check Outdoor EEPROM PBA

69 E486 Outdoor Fan#1 high voltage or low voltage error

1. Change motor

2. Change INV PCB

70 E487 Hall IC connection error of Fan1 Fan1 error

71 E488 Inverter input voltage sensor error Check Outdoor Inverter PBA

72 E489 FAN #1 motor current limiting error

1. Change motor

2. Change INV PCB

73 E491 Fan1 EEPROM CheckSum error

Fan1 error

74 E493 FAN #1 motor output current error

1. Change motor

2. Change INV PCB

75 E496 FAN #1 motor voltage sensor error

1. Change motor

2. Change INV PCB

76 E499 FAN #1 IPM temperature sensor error

1. Change motor

2. Change INV PCB

77 E500 IPM overheat error on inverter 1 Check Outdoor Inverter PBA.

78 E507

Error due to high pressure switch open or compressor down by high

pressure

79 E508 Smart install is not installed -

80 E534 Blockage detected on high pressure pipe during heating operation.

1. Check if the service valve is open

2. Check if there's any blockage on the refrigerant cycle

(indoor unit/outdoor unit)

3. Check the EEV connection and operation

4. Check if the connecting wire and the pipe are OK

5. Check the compressor

81 E554 Gas leak detected Check the refrigerant

82 E556 Error due to mismatching capacity of indoor and outdoor unit Check the indoor and outdoor unit capacity

83 E557 DPM remote controller option error Check the indoor option code

84 E563 Error due to mismatching indoor and outdoor unit Check the outdoor EEPROM data and indoor option code

85 E590 Inverter EEPROM Checksum error -

86 E594 Fan EEPROM CheckSum error 1. Check Fan EEPROM

87 E601 Communication error between wired remote control and indoor unit

1. Check remote control wire connectors.

2. Change wired remote control.

88 E665 External Contact Input ERROR

1. Check the External float switch connection.

2. Check whether the drain has been filled with water.

3. Check the emergency alarm system (Emergency Stop)

89 E695 R-32 detection sensor life unpredictable error

1. Check R-32 sensor.

2. Change R-32 sensor.

90 E697 R-32 detection sensor 2nd detecting error

1. Open the window to ventilate.

2. Contact service center.

91 E698 R-32 detection sensor failure error

1. Check R-32 sensor connector.

2. Check R-32 sensor.

3. Change R-32 sensor.

92 E699 R-32 detection sensor replacement notification error Change R-32 sensor.

93 E700 R-32 detection sensor Life-expiration error Change R-32 sensor.

Samsung AC180HCADNG/SA 18.0kW Universal Outdoor Ducted, Cassettes 3Phase R32

Product's Documents

Installation Guide

Specifications

Samsung AC180HCADNG/SA Questions and Answers

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