Samsung AC160TXAPKG/SA 16.0 kW, Ducted Outdoor, R32, 1-Phase User Manual

Air conditioner

Installation manual

AC***TXAP*G

• Thank you for purchasing this Samsung air conditioner.

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

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Contents

Safety Information 4

General information 4

Installation Procedure 9

Step 1 Choosing the installation location 9

Step 2 Fixing the outdoor unit in place 12

Step 3 Connecting the power cables, communication cable, and controllers 13

Step 4 Optional: Extending the power cable 19

Step 5 Connecting the refrigerant pipe 21

Step 6 Optional: Cutting and flaring the pipes 22

Step 7 Installing oil traps 23

Step 8 Connecting up and removing air in the circuit 24

Step 9 Adding refrigerant (R-32) 25

Step 10 Performing the gas leak test 27

Step 11 Connecting the drain hose to the outdoor unit 28

Step 12 Insulating the refrigerant pipes 28

Step 13 Checking the earthing 29

Step 14 Performing final check and trial operation 30

Extra procedures 33

Pumping down refrigerant 33

Relocating the indoor and outdoor units 33

Using the stop valve 34

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Maintenance Procedures 35

Performing the gas leak tests for repair 35

Decommissioning 35

Appendix 36

Troubleshooting 36

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.

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Safety Information

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Safety Information

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.

Carefully follow the precautions listed below because

they are essential to guarantee the safety of the

equipment.

WARNING

• Always disconnect the air conditioner from the power

supply before servicing it or accessing its internal

components.

• Verify that installation and testing operations are

performed by qualified personnel.

• Verify that the air conditioner is not installed in an

easily accessible area.

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.

• 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.

Safety Information

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Safety Information

• 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.

• For use in Europe: This appliance can be used by

children aged from 8 years and above and persons

with reduced physical, sensory or mental capabilities

or lack of experience and knowledge if they have

been given supervision or instruction concerning use

of the appliance in a safe way and understand the

hazards involved. Children shall not play with the

appliance. Cleaning and user maintenance shall not be

made by children without supervision.

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.)

• 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

thermohygrostat 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.

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Safety Information

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Safety Information

• 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.

• 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.

• 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.

• 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.

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Safety Information

• 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

refrigerant-free 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.

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.

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Safety Information

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Safety Information

• 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 make sure that the power supply is compliant

with current safety standards. Always install the air

conditioner in compliance with current local 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 poor

connection, 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.

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Installation Procedure

Step 1 Choosing the installation location

WARNING

• Because your air conditioner contains R-32 refrigerant,

make sure that it is installed, operated, and stored it in

a room whose floor area is larger than the minimum

required floor area specified in the following table:

Minimum required room area (A, m²)

m (kg)

Ceiling-mounted

type

Wall-mounted

type

Floor-standing

type

≤ 1.842 No requirement

1.843 3.64 4.45 28.9

1.9 3.75 4.58 30.7

2.0 3.95 4.83 34.0

2.2 4.34 5.31 41.2

2.4 4.74 5.79 49.0

2.6 5.13 6.39 57.5

2.8 5.53 7.41 66.7

3.0 5.92 8.51 76.6

3.2 6.48 9.68 87.2

3.4 7.32 10.9 98.4

3.6 8.20 12.3 110

3.8 9.14 13.7 123

4.0 10.1 15.1 136

4.2 11.2 16.7 150

4.4 12.3 18.3 165

4.6 13.4 20.0 180

4.8 14.6 21.8 196

5.0 15.8 23.6 213

5.2 17.1 25.6 230

5.4 18.6 27.6 248

5.6 20.2 29.7 267

5.8 21.5 31.8 286

6.0 23.0 34.0 306

– m : Total refrigerant charge in the system

– A :

Minimum required room area

• IMPORTANT: it’s mandatory to consider either the

table 1 or taking into consideration the local law

regarding the minimum living space of the premises.

• Minimum installation height of indoor unit is 0.6 m

for floor mounted, 1.8 m for wall, 2.2 m for ceiling.

Installation location requirements

• 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.

Fuse

Control

1 m or more

1.5 m or more

300 mm

Stereo

Computer etc

Outdoor Unit

200 mm

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

Indoor Unit

• 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.

Installation Procedure

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Installation Procedure

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Installation Procedure

CAUTION

• You have just purchased a system air conditioner

and it has been installed by your installation

specialist.

• 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, 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 breeze

Sea Sea

Outdoor Unit Outdoor Unit

• 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.

Protection wall

Outdoor Unit

Sea breeze

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 sea water and the dust on the

heat exchanger of the outdoor unit and apply a

corrosion inhibitor on it. (At least once in a year.)

• 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.

Outdoor unit dimensions

(Unit: mm)

A Type

AC090TXAPKG

998

977

537

528

620

940

330

384

360

675

B Type

AC100TXAPKG / AC100TXAPNG / AC120TXAPKG /

AC120TXAPNG / AC140TXAPKG / AC140TXAPNG /

AC160TXAPKG / AC160TXAPNG

1420

1395

940

567

558

1095

620

384

360

330

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Installation Procedure

Minimum clearances for the outdoor unit

When installing 1 outdoor unit

(Unit: mm)

150 or more

500 or more

150 or

1000

or more

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

150

or more

1500

or more

300

or more

1000 or more

300

or more

150

or more

150

or more

200

or more

300

or more

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%

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Installation Procedure

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Installation Procedure

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.

Wire rope

Plate protection

cloth

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.

(Unit : mm)

Anchor bolt hole

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

Soft rubber designed to cut off vibration from

rack to wall. (not supplied with product)

Designed to cut off residual vibration from

outdoor unit to rack. (not supplied with product)

Anchor bolt

Base surface

20 mm

• 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.

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Installation Procedure

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.

NOTE

• Especially, if your outdoor unit is the one designed

for Russian and European markets, consult the supply

authority, if necessary, to estimate and reduce the

supply system impedance before installation.

Air conditioning system examples

When using earth leakage circuit breaker (ELCB) for a

single phase

MCCB

ELB

Main power

cable

Communication cable

Outdoor-to-indoor power cable

Earthing

Outdoor Unit

Indoor Unit

ELCB

When using earth leakage circuit breaker (ELCB) for a

3-phase, 4-wire system (3P4W)

ELB

Main power

cable

Communication cable

Outdoor-to-indoor power cable

Earthing

Outdoor Unit

Indoor Unit

MCCB

ELCB

CAUTION

• 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 a spark by keeping the

following requirements:

– 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.

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Installation Procedure

English

Installation Procedure

Connecting the main power cable

When using ELB for 1 phase and 3 phase

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

F1 F2

1(L) 2(N) L N

F1 F2

MCCB

ELB

Power supply

Electrical

component box

The appearance of the unit may be

different from the picture depending

on the model.

Indoor Unit

1-phase

3-phase

Main power

cable

Communication cable

Communication

cable

3-phase 4-wire

main power cable

(AC 380V)

Outdoor-to-

indoor power

cable

Outdoor-to-

indoor power

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 cable and the connection cord 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.

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15English

Installation Procedure

Main power terminal block specifications

• 1-phase terminal block specifications

(Unit: mm)

AC090/100/120/140/160/TXAPKG

1(L) 2(N)

F1 F2

L N

16.3 12 11.4

10.1

• 3-phase terminal block specifications

(Unit: mm)

AC100/120/140/160/TXAPNG

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

9.8 14.2 11.4

F1 F2

10.1

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.

Single phase

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

AC090TNHDKG

AC090TXAPKG

50 220 to 240 198 264

24 24

2.3 26.3 26.3 30.0

AC100TN4DKG

AC100TXAPKG

1.5 25.5 25.5 30.0

AC100TN4PKG

1.5 25.5 25.5 30.0

AC100TNHDKG

2.7 26.7 26.7 30.0

AC100TNHPKG

2.7 26.7 26.7 30.0

AC120TN4DKG

AC120TXAPKG

32 32

1.5 33.5 33.5 40.0

AC120TN4PKG

1.5 33.5 33.5 40.0

AC120TNHDKG

2.9 34.9 34.9 40.0

AC120TNHPKG

3.1 35.1 35.1 40.0

AC140TN4DKG

AC140TXAPKG

1.5 33.5 33.5 40.0

AC140TN4PKG

1.5 33.5 33.5 40.0

AC140TNHDKG

3.5 35.5 35.5 40.0

AC140TNHPKG

3.9 35.9 35.9 40.0

AC160TNHFKG

AC160TXAPKG

3.1 35.1 35.1 40.0

AC160TNHPKG

4.2 36.2 36.2 40.0

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Installation Procedure

English

Installation Procedure

3-phase

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

AC100TNHDKG

AC100TXAPNG

50 380 to 415 342 456.5 16.1 16.1

2.7 18.8 18.8 18.8

AC100TNHPKG

2.7 18.8 18.8 18.8

AC120TNHDKG

AC120TXAPNG

2.9 19.0 19.0 19.0

AC120TNHPKG

3.1 19.2 19.2 19.2

AC140TNHDKG

AC140TXAPNG

3.5 19.6 19.6 19.6

AC140TNHPKG

3.9 20.0 20.0 20.0

AC160TNHFKG

AC160TXAPNG

3.1 19.2 19.2 19.2

AC160TNHPKG

4.2 20.3 20.3 20.3

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.

2 Maximum allowable voltage variation between

phases is 2%.

3 Wire size & type must comply with the applicable

local and national code.

• 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]

AC090TXAPKG 0.9

AC100TXAPNG 1.8

AC120TXAPNG 1.8

AC140TXAPNG 1.8

AC160TXAPNG 1.8

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17English

Installation Procedure

Silence mode controller wiring diagram

Outdoor unit

ASSY Control out

Non-voltage contact

Connecting the outdoor-to-indoor power cable

and the communication cable

• The designs and shape are subject to change

according to the model.

1-phase

L N

F1 F2

1(L) 2(N) L N

F1 F2

Outdoor-to-indoor

power cable

For connecting the power and

communication cables

Main power cable Communication cable

Cable tie

Indoor Unit

Outdoor Unit

3-phase

L N

F1 F2

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

F1 F2

Indoor Unit

Outdoor-to-indoor

power cable

3-phase 4-wire main

power cable (AC 380V)

Communication

cable

Cable tie

Outdoor Unit

NOTE

• Lay the electrical wiring so that the front cover does

not rise up when doing wiring work and attach the

front cover securely.

• 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).

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Installation Procedure

English

Installation Procedure

DRED wiring diagram

Outdoor unit

ASSY Control out

COMMON

DRED Controller

DRM3

DRM2

DRM1

Cable specification

Model Power cable Interconnection cable

AC***TXAP*G ±10%

4 Wires, 0.75mm²

H07RN-F (60245 IEC66)

(Only for reference)

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

Norminal

dimensions

for cable

(mm²)

Norminal

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

5 20 4.3

+0.2

0.9

8 15 9 28.5 8.4

+0.4

10 8 15 ±0.2 7.1

+0.3

-0.2

4.5 ±0.2 7.9 9 30 8.4

+0.4

1.15

16 8 16 ±0.2 9

+0.3

-0.2

5.8 ±0.2 9.5 13 33

8.4

+0.4

1.45

8 12

±0.3 11.5

+0.5

-0.2

7.7 ±0.2 11

8.4

+0.4

1.7

8 16.5 13 8.4

8 16

±0.3 13.3

+0.5

-0.2

9.4 ±0.2 12.5

13 38 8.4

+0.4

1.8

8 22 13 43 8.4

50 8 22 ±0.3 13.5

+0.5

-0.2

11.4 ±0.3 17.5 14 50 8.4

+ 0.4

1.8

70 8 24 ±0.4 17.5

+0.5

-0.4

13.3 ±0.4 18.5 20 51 8.4

+ 0.4

2.0

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19English

Installation Procedure

• 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 (N⋅m)

M4 0.8 to 1.2

M5 2.0 to 3.0

• 1 N⋅m = 10 kgf⋅cm

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 Plate bottom.

Outdoor-to-indoor power and communication

cables specifications

Indoor power supply

Power supply Max/Min (V) Indoor power cable

1ø, 220-240V,

50 Hz

±10% 1.5 mm²

↑

, 3 wires

Communication cable

0.75 to 1.5 mm², 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 type.

Step 4 Optional: Extending the power

cable

1 Prepare the following tools.

Tools Spec Shape

Crimping pliers MH-14

Connection sleeve

(mm)

20xØ6.5

(HxOD)

Insulation tape

Width 19

Contraction tube

(mm)

70xØ8.0

(LxOD)

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Installation Procedure

English

Installation Procedure

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 20

120

180

202020

120

180

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.

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.

Connection sleeve Connection sleeve

Method 1 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 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.

Compress it 4 times.

5 mm

Compress it 4 times.

5 mm

Method 1 Method 2

5 Apply heat to the contraction tube to contract it.

Contraction tube

Method 1 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

35 mm40 mm

Insulation tapeInsulation tape

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21English

Installation Procedure

7 After tube contraction work is completed, wrap it with

the insulation tape to finish.

Three or more layers of insulation are required.

IInsulation tape

Insulation tape

Method 1 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.

Step 5 Connecting the refrigerant pipe

Items

Maximum allowable length

Single Installation

Applicable outdoor

unit models

AC090TXAPKG

AC100TXAP*G

AC120TXAP*G

AC140TXAP*G

AC160TXAP*G

Main pipe (L1) 50 m 85 m

Max. heigh

difference between

outdoor and

indoor units (h1)

30 m 30 m

• "n" means the number of indoor unit connection of

DPM.

indoor

outdoor

n=1

• Temper grade and minimum thickness of the

refrigerant pipe

Outer diameter

[mm]

Minimum

thickness [mm]

Temper grade

ø6.35 0.7

C1220T-O

ø9.52 0.7

ø12.70 0.8

ø15.88 1.0

ø15.88 0.8

C1220T-1/2H

OR C1220T-H

ø19.05 0.9

ø22.23 0.9

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Installation Procedure

English

Installation Procedure

CAUTION

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

more than Ø19.05 mm. If you use C1220T-O (Soft)

pipe for Ø19.05 mm, the pipe may be broken, which

can result in an injury.

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.

CAUTION

• After connecting the pipes with knock-out treatment,

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.

Step 6 Optional: Cutting and aring 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

Pipe

90°

Oblique

Rough

Burr

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.

45° ±2°

90° ±2°

Pipe

Flare

R 0.4 to 0.8 mm

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

ø6.35 mm 1.3mm 8.7 to 9.1 mm

ø9.52 mm 1.8mm 12.8 to 13.2 mm

ø12.70 mm 2.0mm 16.2 to 16.6 mm

ø15.88 mm 2.2mm 19.3 to 19.7 mm

ø19.05 mm 2.2mm 23.6 to 24.0 mm

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23English

Installation Procedure

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 R32 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

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

• When the indoor unit is installed at a higher place

than the outdoor unit

Outdoor Unit

Indoor Unit

Oil trap (Install it at

every 10 m)

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Installation Procedure

English

Installation Procedure

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. Refrigerant for air

purging is not charged in the outdoor unit. Use Vacuum

Pump as shown at the right figure.

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.

Outdoor Unit

A (Gas)

B (Liquid)

Outer Diameter (mm)

Torque (N

⋅m)

ø6.35 14 to 18

ø9.52 34 to 42

ø12.70 49 to 61

ø15.88 68 to 82

ø19.05 100 to 120

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.

A(Gas)

B(liquid)

Outdoor Unit

Vacuum

Pump

5 Purge the air from the system using vacuum pump

for about 10 minutes.

• Close the valve of the low pressure side of

manifold gauge clockwise.

• Make sure that pressure gauge shows -0.1 MPa

(-76 cmHg) after about 10 minutes. This procedure

is very important to avoid a gas leak.

• Turn off the vacuum pump.

• Remove the hose of the low pressure side of

manifold gauge.

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

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

the valve, and tighten them at the torque of

18 N⋅m with a tor

que wrench.

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25English

Installation Procedure

8 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

4200 kPa and for a burst pressure of at least 20700

kPa. 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 27.

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

key on the outdoor unit PCB.

c After about 30 minutes, charge the refrigerant

through the service port of the gas stop valve.

Indoor Unit

Outdoor Unit

Liquid side stop valve(service port)

Gas side stop valve(service port)

Balance

Ref

Vacuum

pump

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 tCO

e 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.

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Installation Procedure

English

Installation Procedure

Please fill in the following with indelible ink on the

refrigerant charge label supplied with this product and

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 (A), the maximum refrigerant charge, which

is calculated in the following formula: Maximum

refrigerant charge (A) = factory refrigerant charge

(B) + maximum additional refrigerant charge due to

piping extension (C).

(Unit: g)

Model A B C

AC090TXAPKG 3600 2700 900

AC100TXAP*G 5575 3100 2475

AC120TXAP*G 5975 3500 2475

AC140TXAP*G 5975 3500 2475

AC160TXAP*G 5975 3500 2475

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.

Charge the refrigerant turning

the cylinder upside down.

Cylinder with siphon Cylinder without siphon

Charge the refrigerant standing

the cylinder upright.

siphon

NOTE

• During the measuring operation of refrigerant

quantity added use an electronic balance. If cylinder

doesn’t have syphon, upset it.

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27English

Installation Procedure

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

Interconnection pipe length (m)

0~30 30~40 40~50 50~60 60~70 70~85

AC090TXAPKG 0

+45 g/m over

30 m

- - -

AC100TXAP*G

AC120TXAP*G

AC140TXAP*G

AC160TXAP*G

0 +45 g/m over 30 m

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.

A(Gas)

B(liquid)

• The designs and shape are subject to change

according to the model.

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Installation Procedure

English

Installation Procedure

Step 11 Connecting the drain hose to

the outdoor unit

When using the air conditioner in the heating mode, ice

may accumulate . During de-icing (defrost operation),

the condensed water must be drained off safely.

Consequently, you must install a drain hose on the

outdoor unit, following the instructions below.

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.

Drain cap (3EA)

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.

1 To avoid condensation problems, place an insulator

around each refrigerant pipe.

No gap

NBR

NOTE

• When insulate the pipe, be sure to overlap the

insulation.

• The insulation has to be produced in full compliance

of European regulation reg. EEC / EU 2037/ 2000

that requires the use of sheaths insulation form

without using CFC and HCFC gases for health and the

environment.

CAUTION

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

2 Select the insulation of the refrigerant pipe.

• Insulate the gas side and liquid side pipe referring

to the thickness according to the pipe size.

• Less than Indoor temperature of 30°C and

humidity of 85% is the standard condition. If

installing in a high humidity condition, use one

grade thicker insulator by referring to the table

below. If installing in an unfavourable conditions,

use thicker one.

• Insulator’s heat-resistance temperature should be

more than 120°C.

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29English

Installation Procedure

Pipe

Pipe size

(mm)

Insulation Type

(Heating/Cooling)

Remark

Standard

[Less than

30°C, 85%]

High

humidity

[over 30°C,

85%]

EPDM, NBR

Liquid

pipe

Ø6.35~Ø9.52 9 t 9 t

Internal

temperature

is higher

than 120°C

Ø12.7~Ø19.05

13 t 13 t

Gas pipe

Ø6.35 13 t 19 t

Ø9.52~Ø19.05

19 t 25 t

• When installing insulation in places and conditions

below, use the same insulation that is used for

high humidity conditions.

– High humidity places such as shoreline, hot

spring, near lake or river, and ridge (when the

part of the building is covered by earth and

sand.)

– Restaurant ceiling, sauna, swimming pool etc.

– <Building construction condition>

– The ceiling frequently exposed to moisture

and cooling is not covered.

– e.g. The pipe installed at a corridor of a

dormitory and studio or near an exit that

opens and closes frequently.

– The place where the pipe is installed is highly

humid due to the lack of ventilation system.

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.

50 cm

30 cm

Carbon plastic

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.

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Installation Procedure

English

Installation Procedure

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 nal check and

trial operation

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.

3 Press K1 or K2 on the outdoor unit PCB to run the

test mode and stop.

Key Push type Mode

Display

SEG 1 SEG 2 SEG 3 SEG 4

K1 Short

1st Heating test mode

2nd

Defrost test mode

※

3rd Stop

K2 Short

1st Cooling test

2nd Inverter check

3rd Pump down

4th Stop

K3 Short 1st

Reset

Release Eco mode

※

Defrost test mode

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

Condition 2: All the temperature conditions should meet

the defrost conditions.

K1 K2 K3 K4

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):

• Outdoor unit types A, B : Refer to Outdoor unit

dimensions on page 10.

• 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

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31English

Installation Procedure

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

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

The number of preset

indoor units

3 Hundreds digit Tens digit Units digit EA

Ambient temperature

sensor

4 + / - Tens digit Units digit °C

Compressor discharge

sensor

5 Hundreds digit Tens digit Units digit °C

6 Eva Sensor 6 + / - Tens digit Units digit °C

7 Condensor sensor 7 + / - Tens digit Units digit °C

8 Current 8 Tens digit Units digit

The first place of

decimals

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

Target discharge

temperature

A Hundreds digit Tens digit Units digit °C

11 EEV B Hundreds digit Tens digit Units digit step

The capacity sum of indoor

units

C Tens digit Unit digit

The first place of

decimals

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

14 IPM temperature E Hundreds digit Tens digit Units digit -

The number of connected

indoor units

F 0 Tens digit Units digit EA

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 1 E2P version Year (Dec) Month (Hex) Date (Tens digit) Date (Units digit)

After short push 1

Page 1 - AUTO

Page 2 - (SEG1,2 - Indoor : "A","0") (SEG3,4 - Address : ex)00 )

ter short push 1

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 (E2P. ver.)

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Installation Procedure

English

Installation Procedure

7 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 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)

• 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.

Option

item

Inpu

unit

SEG1 SEG2 SEG3 SEG4 Function

Channel

address

Main 0 0

A U

Automatic

setting

(Factory

default)

00~15

Manual

setting

Snow

accumulation

prevention

control

Main 0 1

0 0

Disabled

(Factory

default)

0 1 Enabled

Step for

Silence

mode

Main 0 2

0 0

Disabled

(Factory

default)

0 1 Step1

0 2 Step2

0 3 Step3

Type of

Silence

mode

Main 0 3

0 0

tomatic

Silence

mode

(Factory

default)

0 1

Manual

Silence

mode

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.

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33English

Extra procedures

Extra Procedures

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.

B(liquid)

A(Gas)

Relocating the indoor and outdoor

units

1 Pump down refrigerant. See Pumping down

refrigerant on page 33.

2 Remove the power cord.

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.

Extra procedures

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Extra Procedures

English

Extra procedures

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.

Tightening torque for charging port cap

(Refer to the table)

Charging Core

Spindle

Tightening torque for body cap

(Refer to the table)

R-22 : Thread of the screw - 7/16-20UNF

R-410A/R-32 : Thread of the screw -

1/2-20UNF

3 Tighten the cap securely.

Outer Diameter

(mm)

Tightening torque

Body cap (N

⋅m)

Charging port cap

⋅m)

Ø6.35

20 to 25

10 to 12

Ø9.52

20 to 25

Ø12.70

25 to 30

Ø15.88

30 to 35

Over Ø19.05

35 to 40

(1 N

⋅m=10 kgf⋅cm)

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.

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35English

Maintenance Procedures

Performing the gas leak tests for repair

In case of repair of the refrigerant circuit, the following

procedure must be kept to consider flammability.

1 Remove the refrigerant.

2 Purge the refrigerant circuit with inert gas.

3 Perform evacuation.

4 Purge the circuit again with inert gas.

5 Open the circuit.

6 Perform repair work.

7 Charge the system with refrigerant.

8 Flush the system with nitrogen blowing for safety.

9 Repeat the previous steps several times until no

refrigerant is within the system.

CAUTION

• Compressed air or oxygen shall not be used.

• Flush the system with nitrogen blowing, fill the

refrigerant until the working pressure is reached,

ventilate to 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 absolutely vital in case of brazing on

the pipings.

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

closed 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:

• Before decommissioning, the worker shall be familiar

with the product details.

• The entire refrigerant 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, 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.

4 Lower 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 in accordance with the

manufacturer’s instructions.

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

9 Be sure to 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 charged into other

refrigeration system unless it is cleaned and checked.

Maintenance Procedures

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Appendix

English

Appendix

Troubleshooting

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

centre.

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 E121

Error on room temperature sensor of indoor unit (Short

or Open)

Indoor unit Room Thermistor Open/Short

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

4 E123

Error on EVA OUT sensor of indoor unit (Short or Open)

Indoor unit EVA_OUT Thermistor Open/Short

5 E153 Error on float switch (2nd detection)

Indoor unit Float Switch Open/Short Drain Pump

operation Check

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

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

8 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

9 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

10 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

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

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

13 E251

Error on discharge temperature sensor of compressor 1

(Short or Open)

Check Discharge sensor Open / Short

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

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

16 E404 System stop due to overload protection control Check Comp. when it starts

17 E416 System stop due to discharge temperature -

18 E422 Blockage detected on high pressure pipe

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

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

20 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

21 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

Appendix

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37English

Appendix

No. Error Code Meaning Remarks

22 E458 Fan speed error FAN1 ERROR

23 E461 Error due to operation failure of inverter compressor -

24 E462 System stop due to full current control -

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

26 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

27 E465 Comp. Over load error -

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

29 E467

Error due to abnormal rotation of the compressor or

unconnected wire of compressor

Check Comp wire

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

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

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

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

34 E474

Error on IPM Heat Sink sensor of inverter 1 (Short or

Open)

Check Outdoor Inverter PBA.

35 E475 Error on inverter fan 2 FAN2 ERROR

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

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

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

39 E488 Inverter input voltage sensor error Check Outdoor Inverter PBA

40 E500 IPM over heat error on inverter 1 Check Outdoor Inverter PBA.

41 E508 Smart install is not installed -

42 E554 Gas leak detected Check the refrigerant

43 E556

Error due to mismatching capacity of indoor and outdoor

unit

Check the indoor and outdoor unit capacity

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

45 E563 Error due to mismatching indoor and outdoor unit

Check the outdoor EEPROM data and indoor option

code

46 E590 Inverter EEPROM Checksum error -

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38 English

Appendix

Memo

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39English

Appendix

DB68-08522A-03_IM_CAC R32 Outdoor_SA_EN_.indd 39DB68-08522A-03_IM_CAC R32 Outdoor_SA_EN_.indd 39 2024-08-07 오후 1:57:192024-08-07 오후 1:57:19

This appliance is filled with R-32.

DB68-08522A-03

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Samsung AC160TXAPKG/SA 16.0 kW, Ducted Outdoor, R32, 1-Phase

Product's Documents

Installation Guide

Specifications

Samsung AC160TXAPKG/SA Questions and Answers