Samsung AM***KN4DEH Installation Manual

Air conditioner

Installation manual

AM✴✴✴KN4DEH

• 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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English

Contents

Safety Information 3

Installation Procedure 5

Step 1 Checking and preparing accessories
Step 2 Choosing the installation location
Step 3 Optional: Insulating the body of the indoor unit
Step 4 Installing the indoor unit
Step 5 Purging inert gas from the indoor unit
Step 6 Cutting and flaring the pipes
Step 7 Connecting the assembly pipes to the refrigerant pipes
Step 8 Performing the gas leak test
Step 9 Insulating the refrigerant pipes
Step 10 Installing the drain hose and drain pipe
Step 11 Performing the drainage test
Step 12 Connecting the power and communication cables
Step 13 Setting the indoor unit addresses and the installation options

Appendix 40

Troubleshooting

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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.

• This product has been determined to be in compliance
with the Low Voltage Directive (2006/95/EC), and the
Electromagnetic Compatibility Directive (2004/108/
EC) and the Machinery Directive (2006/42/EC) of the
European Union.

• 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

Installing the unit

WARNING

IMPORTANT: When installing the unit, always remember
to connect first the refrigerant tubes, then the electrical
lines.

• Always disassemble the electric lines before the
refrigerant tubes.

• 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 grounding 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.

CAUTION

Make sure that you earth the cables.

• Do not connect the earth wire to the gas pipe, water
pipe, lighting rod or telephone wire. If earthing is not
complete, electric shock or fire may occur.

Install the circuit breaker.

• If the circuit breaker is not installed, electric shock or
fire may occur.

Make sure that the condensed water dripping from the
drain hose runs out properly and safely.

Install the power cable and communication cable of
the indoor and outdoor unit at least 1m away from the
electric appliance.

Install the indoor unit away from lighting apparatus
using the ballast.

• If you use the wireless remote control, reception error
may occur due to the ballast of the lighting apparatus.

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Installation Procedure

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Installation Procedure

Installation Procedure

Do not install the air conditioner in following places.

• Place where there is mineral oil or arsenic acid. Resin
parts flame and the accessories may drop or water
may leak. The capacity of the heat exchanger may
reduce or the air conditioner may be out of order.

• The place where corrosive gas such as sulphuric acid
gas generates from the vent pipe or air outlet.

• The copper pipe or connection pipe may corrode and
refrigerant may leak.

• The place where there is a machine that generates
electromagnetic waves. The air conditioner may not
operate normally due to control system.

• The place where there is a danger of existing
combustible gas, carbon fibre or flammable dust.

• The place where thinner or gasoline is handled. Gas
may leak and it may cause fire.

Step 1 Checking and preparing
accessories

The following accessories are supplied with the indoor
unit. The type and quantity may differ, depending on the
specifications.

Insulation pipe (3 ea) Cable-tie (6 ea)

Drain hose (1 ea) Installation manual (1 ea)

Clamp (1 ea) User manual (1 ea)

Installation template (1 ea)

Step 2 Choosing the installation
location

Installation location requirements

• There must be no obstacles near the air inlet and
outlet.

• Install the indoor unit on a ceiling that can support its
weight.

• Maintain sufficient clearance around the indoor unit.

• Before installing the indoor unit, be sure to check

whether the chosen location is well-drained.

• The indoor unit must be installed such that it is
beyond public access and is not touchable by users.

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Indoor unit dimensions

Category Ceiling type Open type

Front

1000

358

Ceiling opening dimension

960 (950 - 960)

Ceiling opening dimension

960 (950 - 960)

116

1050

883

Large

385

166

66

357

404

128

181

190

317

100

153

162

289

138

94

Small

385

166

66

357

404

128

181

190

233

100

153

162

205

138

94

Common

646

646

H1 → Large: 180, Small: 150
H2 → Large: 152, Small: 122

H2

942

787

80

ø100

H1

Ceiling type Open type

Model

AM045KN4DEH*
AM056KN4DEH*

AM071KN4DEH*
AM090KN4DEH*

AM112KN4DEH*
AM128KN4DEH*
AM140KN4DEH*

Chassis Small Large

Net dimension

(W × D × H)

mm 947 x 947 x 281 947 x 947 x 281 947 x 947 x 365

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Net weight kg 21.0 21.0 24.0

Liquid pipe connection ø6.35 ø9.52 ø9.52

Gas pipe connection ø12.7 ø15.88 ø15.88

Drain hose connection mm Outer diameter : ø32, Inner diameter : ø26.5

Spacing requirements

A : 1500 mm or more

A

A

A

A

'H2' mm

Indoor unit

Obstruction

20 mm

1500 mm or more

10 mm

2500 mm or more

(Unit: mm)

Model

AM045KN4DEH*
AM056KN4DEH*

AM071KN4DEH*
AM090KN4DEH*

AM112KN4DEH*
AM128KN4DEH*
AM140KN4DEH*

H2 261 261 345

CAUTION

• The indoor 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 indoor unit must be reachable
and removable under safe conditions for people and
the unit.

• Do not hold the discharge while carrying the indoor
unit to avoid the possibility of breakage.

• You must hold the hanger plate on the corner and
carry the indoor unit.

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Installation Procedure

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Step 3 Optional: Insulating the body
of the indoor unit

If you install a cassette type indoor unit on the ceiling
when temperature is over 27°C and humidity is over
80%, you must apply an extra 10 mm thick polyethylene
insulation or a similar type of insulation to the body of
the indoor unit.

Cut away the part where pipes are pulled out for the
insulating work.

A

Insulate the end of the pipe and some curved area by
using separate insulator.

NOTE

• A: Reference for the outer circumference of the unit
(When insulating the body of the indoor unit, use A as
the reference for its outer circumference.)

Indoor unit type and models Dimensions

All way cassette

type <S>

(947 x 947 x 281)

AM045KN4DEH*
AM056KN4DEH*
AM071KN4DEH*
AM090KN4DEH*

2610 x 130

All way cassette

type <L>

(947 x 947 x 365)

AM112KN4DEH*
AM128KN4DEH*
AM140KN4DEH*

2610 x 215

Step 4 Installing the indoor unit

When deciding on the location of the air conditioner the
following restrictions must be taken into account.

1 Determine the positions of the pipe and the drain

hose hole as shown in the pattern sheet, and drill the
hole with an inner diameter of 14 mm.

NOTE

• Since the diagram is made of paper, it may shrink
or stretch slightly due to temperature or humidity.
For this reason, before drilling the holes, be sure
to maintain the correct dimensions between the
markings.

2 Insert bolt anchors, use existing ceiling supports or

construct a suitable support as shown in figure.

Concrete

Hole in anchor
Hole in plug

Suspension bolt (M10) - eld supply

Insert

3 Install the suspension bolts, depending on the ceiling

type.

Ceiling support

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CAUTION

• Make sure that the ceiling is strong enough to support
the weight of the indoor unit. Before hanging the
unit, test the strength of each attached suspension
bolt.

• If the length of the suspension bolt is more than 1.5
m, you are required to prevent vibration.

4 Screw eight nuts and washers to the suspension bolts,

making space for hanging the indoor unit.

CAUTION

• You must install all of the suspension rods.

• It is important to leave sufficient space in the false

ceiling to allow access for maintenance or repairs to
the drainage pipe connection, the refrigerant pipe
connection, or to remove the unit if necessary.

5 Hang the indoor unit to the suspension bolts between

two nuts. Screw the nuts to suspend the unit. Cut a
pad stopper and place it on the bracket at this time

1

2

2

6 Adjust the unit to the appropriate position, taking into

account the installation area for the front panel.

• Place the pattern sheet on the indoor unit.

• Adjust the space between the ceiling and the

indoor unit by using a dimension gauge.

• Fix the indoor unit securely after adjusting the

level of the unit by using a leveller.

• Remove the pattern sheet and install the front

panel.

11.5 mm

Indoor unit

Ceiling

Gauge of dimensions

Step 5 Purging inert gas from the
indoor unit

The indoor unit comes with nitrogen gas (inert gas)
charged at the factory. Therefore, all inert gas must be
purged before connecting the assembly piping.

Unscrew the pinch pipe at the end of each refrigerant
pipe.

Liquid side

Gas side

Insulator

NOTE

• To prevent dirt or foreign objects from getting into
the pipes during installation, do not remove the pinch
pipe completely until you are ready to connect the
piping.

Step 6 Cutting and flaring the pipes

1 Make sure that you have the required tools available:

pipe cutter, reamer, flaring tool, and pipe holder.

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

cutter, ensuring that the cut edge remains at a 90°
angle to the side of the pipe. Refer to the illustrations
below for examples of edges cut correctly and
incorrectly.

Pipe cutter

Pipe

Oblique

Rough

Burr

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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.

Pipe

Flare

D

A

Flare

R 0.4 to 0.8 mm

D

L

90° ±2°

45° ±2°

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

Ø6.35 mm 1.3 mm 8.7 to 9.1 mm

Ø9.52 mm 1.8 mm 12.8 to 13.2 mm

Ø12.70 mm 2.0 mm 16.2 to 16.6 mm

Ø15.88 mm 2.2 mm 19.3 to 19.7 mm

Ø19.05 mm 2.2 mm 23.6 to 24.0 mm

5 Check that the flaring is correct, referring to the

illustrations below for examples of incorrect flaring.

Correct

Inclined

Damaged

Surface

Cracked

Uneven

Thickness

Step 7 Connecting the assembly
pipes to the refrigerant pipes

There are two refrigerant pipes of different diameters :

• A smaller one for the liquid refrigerant.

• A larger one for the gas refrigerant. The inside of

copper pipe must be clean and has no dust.

1 Remove the pinch pipe on the pipes and connect the

assembly pipes to each pipe, tightening the nuts, first
manually and then with a torque wrench, a spanner
applying the following torque.

Torque
wrench

Flare nut

Spanner

Union

1

2

3

3

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

(1 N•m=10kgf•cm)

NOTE

• If the pipes must be shortened, see Step 6 Cutting
and flaring the pipes on page 9.

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2 Be sure to use an insulator thick enough to cover the

refrigerant tube to protect the condensate water on
the outside of the pipe falling onto the floor and to
improve the efficiency of the unit.

3 Cut off any excess foam insulation.
4 Make sure that there are no cracks or waves on the

bent area.

5 It would be necessary to double the insulation

thickness (10 mm or more) to prevent condensation
even on the insulator when if the installed area is
warm and humid.

6 Do not use joints or extensions for the pipes

connecting the indoor and outdoor units. The only
permitted connections are those for which the units
are designed.

CAUTION

• Connect the indoor and outdoor units using pipes
with flared connections (not supplied). For the lines,
use insulated, unwelded, degreased and deoxidized
copper pipe (Cu DHP type to ISO 1337 or UNI EN
12735-1), suitable for operating pressures of at least

4.2 MPa and for a burst pressure of at least 20.7
Mpa. Copper pipe for hydro-sanitary applications is
completely unsuitable.

• For sizing and limits (height difference, line length,
max. bends, refrigerant charge, etc.) see the outdoor
unit installation manual.

• All refrigerant connection must be accessible, in order
to permit either unit maintenance or removing it
completely.

• If the pipes require brazing, make sure that oxygen
free nitrogen (OFN) is flowing through the system.

• Nitrogen blowing pressure range is 0.02 to 0.05 MPa.

Step 8 Performing the gas leak test

To identify potential gas leaks on the indoor unit, inspect
the connection area of each refrigerant pipe using a leak
detector for R-410A.

Before recreating the vacuum and recirculating the
refrigerant gas, pressurize the whole system with
nitrogen (using a cylinder with a pressure reducer) at a
pressure above 4 MPa in order to immediately detect
leaks on the refrigerant fittings.

Made vacuum for 15 minutes and pressurising system
with nitrogen.

Liquid side

Gas side

Insulator

Step 9 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 Acrylonitrile

Butadien Rubber separately around each refrigerant
pipe.

No gap

NBR

NOTE

• Always make the seam of pipes face upwards.

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CAUTION

• The insulation has to be produced in full compliance
with European regulation EEC / EU 2037 / 2000
requiring the use of sheaths insulation without using
CFC and HCFC gases for health and the environment.

2 Wind insulating tape around the pipes and drain hose

avoiding compressing the insulation too much.

3 Finish wrapping insulating tape around the rest of the

pipes leading to the outdoor unit.

4 The pipes and electrical cables connecting the indoor

unit with the outdoor unit must be fixed to the wall
with suitable ducts.

Indoor unit

Insulation cover pipe

Insulation pipe

Be sure to overlap
the insulation.

CAUTION

• Install the insulation not to get wider and use the
adhesives on the connection part of it to prevent
moisture from entering.

• Wind the refrigerant pipe with insulation tape if it is
exposed to outside sunlight.

• Install the refrigerant pipe respecting that the
insulation does not get thinner on the bent part or
hanger of pipe.

• Add the additional insulation if the insulation plate
gets thinner.

Refrigerant pipe insulation

Hanger

Additional

insulation

a

a x 3

• Must fit tightly against body without any gap.

• All refrigerant connection must be accessible, in order

to permit either unit maintenance or removal.

5 Select the insulation of the refrigerant pipe.

• Insulate the gas side and liquid side pipe, noting

the insulation thickness that must differ according
to the pipe size.

• Standard: Less than an indoor temperature of

30°C, with humidity at 85%. If installing in a high
humidity environment, use one grade thicker
insulator by referring to the table below. If
installing in an unfavourable environment, use
thicker one.

• The heat-resistance temperature of the insulator

must be more than 120°C.

Pipe Pipe size

Insulation Type (Heating/Cooling)

Remarks

Standard

[30°C, 85%]

High humidity

[30°C, over 85%]

EPDM, NBR

Liquid

pipe

Ø6.35 to Ø9.52 9t

←

Internal temperature is

higher than 120°C

Ø12.7 to Ø50.80 13t

←

Gas pipe

Ø6.35 13t 19t

Ø9.52 to Ø25.40

19t

25t

Ø28.58 to Ø44.45 32t

Ø50.80 25t 38t

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• When installing insulation in the places and
conditions below, use the same insulation that is
used for high humidity conditions.

<Geological condition>

High humidity locations such as shorelines, hot
springs, lake or riversides, and ridges (when part of
the building is covered by earth and sand)

<Operation purpose condition>

Restaurant ceiling, sauna, swimming pool etc.

<Building construction condition>

Ceilings frequently exposed to moisture and cooling
are not covered. For example, pipes installed at a
corridor of a dormitory and studio or near an exit
that opens and closes frequently.

Places (where the pipes are installed) that are highly
humid due to a lack of ventilation.

Step 10 Installing the drain hose and
drain pipe

1 Push the supplied drain hose as far as possible over

the drain socket.

2 Tighten the metal clamp as shown in the picture.

3 Wrap the supplied large sealing pad over the metal

clamp and drain hose to insulate and fix it with
clamps.

4 Insulate the complete drain piping inside the building

(field supply).
If the drain hose cannot be sufficiently set on a slope,
fit the hose with drain raising piping (field supply).

5 Push the drain hose up to insulation when connecting

the drain hose to drain socket.

Metal clamp

Drain socket

Drain hose

Large seailng pad

Drain pipe

Be sure to bond the
drain hose and the
main pipe.

Drain hose

PVC Tube Joint
+ VP25 (OD: 32 mm, ID: 25 mm)

Drain pipe

CAUTION

Check that the indoor unit is level with the ceiling by
using the leveller.

• Install air ventilation to drain condensation smoothly.

Air ventilation

Ceiling

• If it is necessary to increase the height of the drain
pipe, install the drain pipe straight within 300 mm
from the drain hose port. If it is raised higher than
550 mm, there may be water leaks.

Band joint

300 mm
or less

20 mm or more

Drain hose

Ceiling

300 to 550 mm

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• Do not give the hose an upward gradient beyond
the connection port. This will cause water to flow
backwards when the unit is stopped, resulting in
water leaks.

Under gradient

Ceiling

• Do not apply force to the piping on the unit side
when connecting the drain hose. The hose should not
be allowed to hang loose from its connection to the
unit. Fasten the hose to a wall, frame or other support
as close to the unit as possible.

Support pieces

1 to 1.5 m

1/100 or more

Ceiling

• Install horizontally.

Indoor unit

Be horizontal

Flexible hose

• Max. allowable aixs gap

Indoor unit

Max. 20 mm

• Max. allowable bending angle

Indoor unit

Max. 30˚

NOTE

• If a concentrated drain pipe is installed, refer to the
figure below.

Centralized horizontal drain
pipe
(more than 1/100 slope)

Main drain pipe

Full thread bolt hanger

1000 to 1500 mm

300 to
550 mm

200 mm
or more

Individual

air vent

Main air vent
(must be installed)

• If 3 or more units are installed, install the main air
vent at the front of the farthest indoor unit from the
main drain pipe.

• To prevent water from flowing back to indoor units,
install an individual air vent at the top of each indoor
unit.

– The air vents should be T or 7 shaped to prevent

dust or foreign substances from entering.

– You may not need to install air vent if the

horizontal drain pipe is in proper slope.

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