Samsung AC140KN4PEH/SA, AC140KXAPEH/SA, AC125KN4PEH/SP, AC125KXAPEH/SP, AC100KN4PEH/SA Installation Manual

Air conditioner

Installation manual

AC✴✴✴KXA✴✴H

• 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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2

English

Contents

Safety Information 3

General information 3
Installing the unit 4
Power supply line, fuse or circuit breaker 4

Installation Procedure 5

Step 1 Checking accessories and choosing the installation location 5
Step 2 Fixing the outdoor unit in place 7
Step 3 Connecting the power cables, communication cable, and controllers 8
Step 4 Optional: Extending the power cable 13
Step 5 Connecting the refrigerant pipe 14
Step 6 Optional: Cutting and flaring the pipes 15
Step 7 Connecting up and removing air in the circuit 16
Step 8 Adding refrigerant (R-410A) 17
Step 9 Performing the gas leak test 18
Step 10 Connecting the drain hose to the outdoor unit 19
Step 11

Insulating the refrigerant pipes 19
Step 12 Checking the earthing 20
Step 13 Performing final check and trial operation 21

Extra procedures 24

Pump down operation 24
Relocating the indoor and outdoor units 24
Using the stop valve 24

Appendix 26

Troubleshooting 26

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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.

Safety Information

Safety Information

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Safety Information

English

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.

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.

• 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.

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

Installation Procedure

Installation Procedure

Step 1 Checking accessories and
choosing the installation location

The following accessories are supplied with the outdoor
unit.

Leg rubber Drain plug

<AC071*> <AC100/125/145*>

AC071* : 2EA
AC100/125/145* : 1EA

Drain cap Installation manual

AC071* : 4EA
AC100/125/145* : 3EA

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 m or more

1.5 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.

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 see
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.

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Installation Procedure

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Installation Procedure

• 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.)

Outdoor unit dimensions

A Type

AC140KXAPEH/SA, AC125KXAPEH/SP

620

330

384

360

1420

1395

940

567

558

1095

Electrical
component box

B Type

AC100KXAPEH/SA, AC125KXAPEH/SA
AC100KXADGH/SA, AC140KXADGH/SA

620

330

384

360

1210

1185

940

567

558

675

Electrical
component box

C Type

AC071KXAPEH/SA, AC071KXADEH/SA

880 53

310

660

364

18

798

Minimum clearances for the outdoor unit

When installing 1 outdoor unit

(Unit: mm)

300 or more

1500 or more

300 or

more

600 or

more

300 or

more

2000

or more

1500

or more

600

or more

300

or more

1500

or more

300 or

more

When installing more than 1 outdoor unit

(Unit: mm)

1500

or more

600

or more

3000

or more

3000

or more

300

or more

600

or more

600

or more

1500

or more

300

or more

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Installation Procedure

1500

or more

600

or more

600

or more

300
or more

600

or more

600

or more

600

or more

300

or more

500

or more

500

or more

300

or more

300

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.

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.

Anchor bolt hole

(Unit : mm)

AC071KXA✴EH

(Unit : mm)

Anchor bolt hole

AC100/125/145KXA✴✴H

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.

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Installation Procedure

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Installation Procedure

Optional: Fixing the outdoor unit to a wall with
a rack

• 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.

• Install a proper grommet in order to reduce noise and
residual vibration transferred by the outdoor unit
towards the wall.

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

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.

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

ELCB

ELB

Main power
cable

Communication cable
Outdoor-to-indoor power cable

Earthing

Outdoor Unit

OR

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

Earthing

Outdoor Unit Indoor Unit

OR

CAUTION

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

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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-to­indoor power
cable

Outdoor-to­indoor power
cable

Cable tie

Cable tie

CAUTION

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

• When using a 3 phase model, the unbalanced power between phases 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 operation of the outdoor unit is stoped and protected, 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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