Samsung AJ TXJ KH Series User manual

Air conditioner
Installation manual
AJ***TXJ*KH
• Thank you for purchasing this Samsung air conditioner.
• Before operating this unit, please read this manual carefully and retain it for future reference.
DB68-09261A-01

2English
Contents
Safety Information 3
General information 4
Installing the unit 5
Power supply line, fuse or circuit breaker 5
Installation Procedure 6
Step 1 Choosing the installation location 6
Step 2 Checking and preparing accessories and tools 8
Step 3 Fixing the outdoor unit in place 8
Step 4 Connecting the power cables, communication cable, and controllers 9
Step 5 Optional: Extending the power cable 14
Step 6 Connecting the refrigerant pipe 16
Step 7 Optional: Cutting and flaring the pipes 16
Step 8 Connecting refrigerant pipes and vacuuming 17
Step 9 Performing the gas leak test 18
Step 10 Adding refrigerant (R-410A) 19
Step 11 Connecting the drain hose to the outdoor unit 20
Step 12 Checking the earthing 20
Step 13 Setting an indoor unit address and installation option 21
Step 14 Cool and Heat modes operation test 31
Step 15 Optional: Setting to Cool or Heat only mode 31
Step 16 Optional: Power improvement mode 31
Extra procedures 32
Pumping down refrigerant 32
Relocating the indoor and outdoor units 32
Using the stop valve 32
Appendix 34
Troubleshooting 34

3
English
Safety Information
WARNING: Read This Manual
• Read and follow all safety information and instructions before installation, use, or maintenance of this appliance.
Incorrect installation, use, or maintenance of this appliance can result in death, serious injury, or property damage.
Keep these instructions with this appliance. This manual is subject to change. For the latest version,
visit www.samsung.com.
Notices and notes
To make you aware of safety messages and highlighted information, we use the following notices and notes throughout
this manual:
WARNING
Hazards or unsafe practices that may result in severe personal injury or death.
CAUTION
Hazards or unsafe practices that may result in minor personal injury or property damage.
IMPORTANT
• Information of special interest
NOTE
• Supplementary information that may be useful
WARNING
The installation and testing of this appliance must be performed by a qualified technician.
• The instructions in this manual are not intended as a substitute for proper training or adequate experience in the safe
installation of the appliance.
Always install the air conditioner in compliance with current local, state, and federal safety standards.
Safety Information

4English
Safety Information
Safety Information
General information
WARNING
• Carefully read the content of this manual before
installing the air conditioner and store the manual in
a safe place in order to be able to use it as reference
after installation.
•For maximum safety, installers should always carefully
read the following warnings.
• Store the operation and installation manual in a safe
location and remember to hand it over to the new
owner if the air conditioner is sold or transferred.
• This manual explains how to install an indoor unit with
a split system with two SAMSUNG units. The use of
other types of units with different control systems may
damage the units and invalidate the warranty. The
manufacturer shall not be responsible for damages
arising from the use of non compliant units.
• The manufacturer shall not be responsible for damage
originating from unauthorized changes or the
improper connection of electric and requirements set
forth in the "Operating limits" table, included in the
manual, shall immediately invalidate the warranty.
•The air conditioner should be used only for the
applications forwhich 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 centers or returned to the retailer so that it
can be disposed of correctly and safely.
•Wear protective equipment (such as safety gloves,
goggles, and headgear) during installation and
maintenance works. Installation/repair technicians
may be injured if protective equipment is not properly
equipped.
• This appliance is not intended for use by persons
(including children) with reduced physical, sensory
or mental capabilities, or lack of experience and
knowledge, unless they have been given supervision
or instruction concerning use of the appliance by a
person responsible for their safety. Children should be
supervised to ensure that they do not play with the
appliance.

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English
Safety Information
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 5 Optional: Extending
the power cable" in the installation manual.

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Installation Procedure
Installation Procedure
Step1 Choosing the installation
location
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 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.
IndoorUnit
1 m or more
1.5 m or more
1.5 m or more
Stereo Computer etc
Air Guide Duct (This product is not provided by Samsung)
300 mm
200 mm
OutdoorUnit
1 m or more
Control
Fuse
• 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
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
OutdoorUnit Outdoor Unit
Sea Sea
• If you cannot avoid installing the outdoor unit at the
seaside, construct a protection wall around to block
the sea breeze.
• Construct a protection wall with a solid material such
as concrete to block the sea breeze. Make sure that the
height and the width of the wall are 1.5 times larger
than the size of the outdoor unit. Also, secure a space
larger than 700 mm between the protection wall and
the outdoor unit for exhausted air to ventilate.
OutdoorUnit
Protection wall
Sea breeze
Sea
CAUTION
• Depending on the condition of the power supply,
unstable power or voltage may cause malfunction of
parts or control system (example: on a boat or places
using power supplied from electric generator, etc.).
• Install the unit in a place where water can drain
smoothly.

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English
Installation Procedure
• If you have any difficulty finding installation location as
prescribed above, contact your manufacturer for details.
• Consider that the salinity particles clinging to the
external panels should be sufficiently washed out. Be
sure to clean sea water and dust from the outdoor unit
heat exchanger and apply a corrosion inhibitor on it at
least once a year.
• Because the residual water at the bottom of the outdoor
unit significantly promotes corrosion, make sure that
the slope does not disturb drainage.
– Keep the floor level so that rain does not accumulate.
– Be careful not to block the drain hole due to foreign
substance.
• 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 500 m of seashore, special
anti-corrosion treatment is required.
࢘Please contact your local SAMSUNG representative
for further details.
Minimum clearances forthe 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 than1 outdoor unit
(Unit : mm)
1500
or more
600
or more
3000
or more
3000
or more
3000
or more
600
or more
600
or more
1500
or more
300
or more
600
or more
600
or more
1500 or more
600
or more
600
or more
600
or more
300
or more
300
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.

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Installation Procedure
English
Installation Procedure
Step 2 Checking and preparing
accessories and tools
3-wire
Power Cable (option)
2-wire
Assembly Cable (option)
Drain Plug Energy Label
Federallaw prohibits removal of this label before consumer purchase.U.S.Government
HeatPump
Coolingand Heating
SplitSystem
SamsungElectronics Co., Ltd.
ModelAJ036JCJ5CH
HeatingCapacity 40,000 Btu/h
CoolingCapacity 36,000 Btu/h
13.5
MostEfficient
Rangeof Similar Models
*HeatingSeasonal Performance Factor
LeastEfficient
8.2
9.0-9.5
Heating
Efficiency Rating (HSPF)*
30.5
MostEfficient
Rangeof Similar Models
*SeasonalEnergy Efficiency Ratio
LeastEfficient
14.0
16.5-18.5
Cooling
Efficiency Rating (SEER)*
Forenergy cost info, visit
productinfo.energy.gov
Thissystem’s
efficiencyratings depend
onthe coil your contractor
installswith this unit. The
heatingefficiency rating
variesslightly in different
geographicregions. Ask
yourcontractor for details.
Rubber Leg Installation Manual
Flare Nuts,15.88 mm
outer pipe diameter
Flare Nuts, 9.52 mm
outer pipe diameter
Tube connector
(Pipe 12.70 mm, Bolt 9.52 mm)
Tube connector
(Pipe 12.70 mm, Bolt15.88 mm)
NOTE
• Attach Energy Label to the outdoor unit properly when
installing.
• Wire assembly cables are optional. If they are not
supplied, use standard cables.
• The drain plug and the rubber legs are included only
when the air conditioner is supplied without assembly
pipes.
• If these accessories are supplied, they are in the
accessory package or outdoor unit package.
Step 3 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 on tall stands or in a location
exposed to strong winds, fix the unit securely to the
ground or structure.
1 Position the outdoor unit so that the air flow is directed
towards the outside, as indicated by the arrows on the
top of the unit.
2 Attach the outdoor unit to the appropriate support
using anchor bolts.
• The ground wire for the telephone line cannot be
used to ground the air conditioner.
3 DIf the outdoor unit is exposed to strong winds, install
shield plates around the outdoor unit, so that the fan
can operate correctly.
NOTE
• Install provided rubber legs to prevent vibration and
noise.
620 mm
Rubber leg
360 mm
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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English
Installation Procedure
Optional: Fixing the outdoorunit to a wallwith a rack
Designed to cut off residual vibration from outdoor
unit to rack. (not supplied with product)
Soft rubber designed to cut off vibration from rack
to wall. (not supplied with product)
Anchor bolt
20 mm
Base surface
• 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.
Step 4 Connecting the powercables,
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 being removed, 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.
Connecting wire conduits
ForAJ125TXJ5KH / AJ140TXJ5KH models only
When connecting cables between the indoor unit and the
outdoor unit, use conduits to protect the cables.
1 Remove the conduit plate from the product.
2 Remove conduit knock-outs for the required number
of connections.
Power supply
(19.05 mm) Outdoor-Indoor
(12.70 mm)
3 Insert the cables through the conduits, and then fix the
conduits to the conduit plate with the lock nuts.
4 Apply silicone to the end of the hose to prevent rain
from entering the hose.
Conduit inserted into the outdoor unit
Silicone
5 Connect the cables to the outdoor units.
For how to connect the cables, refer to the next page.
6Attach the conduit plate to the product.

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Installation Procedure
English
Installation Procedure
Connecting the cables to the outdoorunit
LN1(L) 2(N) 1(L) 2(N)
1(L) 2(N) F1 F2 1(L) 2(N) F1 1(L) 2(N) F1 1(L) 2(N) F1F2
12
F1 F2 F1 F2
12
21
F2
12
F1 F2
F1 F2
F2
F1 F2
F1 F2
12
12
B
C B CB C B C
A
1(L) 2(N) F1 F2
F1 F2
F1 F2
12
B C
F1 F2 F1 F2
F1 F2 F1 F2
LN
12
21
12 21
A-unit B-unit C-unit D-unit E-unit
Indoorunit
Assembly cable
Earth
terminal
Earth
terminal
Earth
terminal
Earth
terminal
Earth
terminal
Earth
terminal
Earth
terminal
Earth
terminal
Earth
terminal
Earth
terminal
Outdoor unit
Main Power supply cable
Power cable to indoor units Communication cable
to indoor units
Cable Type : A
Cable Type : B
Cable Type : C
Earth
terminal
A
B
C