Samsung AVXTJ series User manual

E-2
Safety Precautions
Keep this installation manual together with the user’s manual in a handy place so that you can find it whenever
you need to see it after reading this manual thoroughly.
 Make sure to read the following safety precautions carefully before installation.
 Make sure to observe the cautions specified in this manual.
 Conduct a test run of the unit after installation and then explain all system functions to the owner.
 The indications and meanings are as shown below.
WARNING
 This indicates the possibility of serious injury or death.

Installation must be carried
out by a qualified installer.

Installers are required to read
the general information
carefully for safety.

Do not put the unit near
dangerous substances to
prevent fire, explosion or
injury and do not expose
the unit to direct sunlight.
Do not install the unit by
yourself (owners).
Incorrect installation of the
unit could cause injury due
to fire, electric shock and
water leakage or from the
unit falling. Consult a dealer
or a qualified installer.
Install the unit in a place
where it is strong enough
to hold the product weight.
When installed in place
where it is not strong
enough to withhold the
product weight, the unit
could fall and cause injury.
The units must be installed
according to distances
declared, in order to permit
accessibility from each side,
either to guarantee correct
operation of maintenance
or repairing products. The
unit’s parts must be reach-
able and removable com-
pletely under safety condi-
tion (for people or things)

Use the specified wires to
connect the indoor and
outdoor units securely and
attach the wires firmly to the
terminal block connecting
sections so that the pressure
is not applied to the sections.
Inappropriate connection and
fixing could cause fire.

Avoid the use of an
extension cord and do not
share the power outlet with
other appliances. Incomplete
connection, defective
insulation or exceeding the
permissible current may cause
electric shock or fire.

Make sure that the refrigerant
gas does not leak after
completing the installation.
If the refrigerant gas of
the indoor unit leaks and
comes into contact with the
fan heater, space heater or
stove, harmful substances
will be generated.
Perform the installation
securely referring to
the installation manual.
Incomplete installation
could cause personal injury
due to fire, electric shock
and water leakage or from
the unit falling.
Attach the electrical cover
to the indoor and outdoor
unit securely. If not, it could
result in fire or electric
shock due to dust or water.
Make sure to use the part
provided or specified parts
for the installation work.
The use of defective parts
could cause an injury or
leakage of water due to a
fire, an electric shock, the
unit falling, etc.
Make sure to turn off
the main power when
setting up the indoor unit
electrical circuit or power
cords.
There is a risk of electric
shock.

E-3
ENGLISH
CAUTION
 This indicates the possibility of serious injury or damage to environments when
operated incorrectly.

Check the unit for damage
that may have taken place
during transportation and do
not install or use damaged
equipment.

All of the manufacturing and
packaging material used for
your new appliance are
compatible with the
environment and can be
recycled.

Dispose of the packaging
material in accordance with
the local requirements.

This product is an air
conditioning system and
contains a coolant that must
be recovered and disposed
of in an appropriate way by
qualified personnel. At the
end of the life cycle, take it to
a proper recycling or disposal
center or return it to the
dealer so that it can be
disposed correctly.
Grounding the unit.
Do not connect the ground
to a gas pipe, water pipe,
lightning rod or telephone
grounding. Defective
grounding could cause
electric shock.

Do not install the unit in a
place where it is exposed to
inflammable gas leakage.
There is a risk of explosion.

Install a ground leakage
breaker depending on the
installation place (where it is
humid). If not, it may cause
electric shock.

Perform the drainage/piping
work securely according to
the installation manual.
If not, water could drop from
the unit and household
goods could get wet and
damaged.
Fasten a flare nut with a
torque wrench as specified
in this installation manual.
When fastened too tight,
a flare nut may break after
a long period of time and
cause refrigerant leakage.

To prevent injury when
accidentally touching the
indoor unit fan, install the
indoor unit on a place higher
than 2.5m.

The air conditioner must be
installed according to the
national electrical
regulations.

The maximum input power &
current is measured
according to the IEC standard
and the input power &
current is measured
according to the ISO and
EN14511standard.
WARNING
 This indicates the possibility of serious injury or death.

The unit should be installed in
accordance with the National
Electrical regulations.

Ensure that the national safety
code requirements have been
followed for the main supply
circuit. Ensure that a properly
sized and connected ground
wire is in place.

Check if the voltage and the
frequency of the main power
supply are those required for
the unit to be installed and
check the connection.

Make sure that properly sized
disconnecting and safety
switches are installed.
Do not attempt to repair,
move, modify or reinstall
the unit on your own. Make
sure that these installations
are carried out by qualified
personnel to avoid electric
shock or fire.

Use the unit on a single outlet
circuit. Do not share the power
outlet with other appliances.
Obtain the consent by a
qualified installer before
connecting the unit to the
power supply system.

E-4
Contents
Preparation for installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Deciding on where to install the indoor unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Indoor unit installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Purging the unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Connecting the refrigerant pipe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Cutting/Flaring the pipes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Performing leak test & insulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Drain hose installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Wiring work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Assigning address to indoor unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Additional functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Final check and trial operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Providing information for user . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

E-5
ENGLISH
Preparation for installation
When deciding on the location of the air conditioner with the owner,
the following restrictions must be taken into account.
General
Do NOT install the air conditioner in a location where it will come into
contact with the following elements:
 Combustible gases
 Saline air
 Machine oil
 Sulphide gas
 Special environmental conditions
If you must install the unit in such conditions, first consult your dealer.
Accessories
Avoid installing the air conditioner:
 In areas where it is exposed to direct sunlight. Close to heat sources.
 In damp areas or locations where it could come into contact with water
(for example rooms used for laundry)
 In areas where curtains and furniture could affect the supply and discharge of air.
 Without leaving the required minimum space around the unit (as shown in the
drawing).
 In scarcely ventilated areas.
 On surfaces that are unable to support the weight of the unit without deforming,
breaking or causing vibrations during the use of the air conditioner.

In a position that does not enable the condensate drainage pipe to be correctly
installed (at the end of the installation. It is always essential to check the efficiency
of the drainage system.)

Only for floor standing type installation.
 The following accessories are supplied with the indoor unit.
The type and quantity may differ depending on the specifications.
User’s
manual
Installation
manual
Insulation drain Insulation
cover pipe
Insulation pipe Insulation
drain pipe
Cable-tie
Wireless remote
control
Battery

E-6
Deciding on where to install the indoor unit
Indoor unit
This unit has to be installed as floor type only.
 There must be no obstacles near the air inlet and outlet.
 Select a convenient location that permits the air to reach every corner of the
area to be cooled.
Pre-plan for easy and short routing of the refrigerant tubing and wiring to the
outdoor unit.
 There should be no flammable gas, alkaline, substances present in the air.
 Maintain sufficient clearance around the indoor unit.
 Make sure that the water dripping from the drain hose runs away correctly and
safely.
 Do not install the unit where it will be exposed to direct sunlight.
Space requirements for indoor unit



The units must be installed according to distances declared, in order to
permit accessibility from each side, either to guarantee correct opera-
tion of maintenance or repairing products.
The unit’s parts must be reachable and removable completely under
safety condition (for people or things).
This model can be installed with no side space. But it is recommended
installing like above.
CAUTION

E-7
ENGLISH
Deciding on where to install the indoor unit
Drawing of the indoor unit
720
Maximum installation height: up to 3.6m
Condensate discharge pump(built-in): Max. 750mm
Length of pipes and difference in height: see the outdoor unit installation manual
Vacuum and refrigerant charge: see the outdoor unit installation manual
No. Name Description
1 Liquid pipe connection ø6.35
2 Gas pipe connection ø12.7
3 Drain pipe connection ID: ø12 ; OD: ø18
4 Power supply connection -
Dimension And Weight AVXTJH
Net Dimension Indoor Unit mm 720*620*199
Net Weight Indoor Unit kg 15.2

E-8
1
When you install the indoor with side-pipe connection, please make space
more than 300mm from the wall.
2
When you install the indoor at the inclined floor, please lean the set toward
the drain hose and pipe connection to prevent water overflowing.
3
The body front should be opened to connect pipes.
Please release the 4 screws of body front and then pull it out from the
bottom of the set.
Indoor unit installation
300mm 300mm
It is recommended to install the refnet joint before installing the
indoor unit
Screw Hole
Screw Hole
Position
of drain
Position
of drain

E-9
ENGLISH
Indoor unit installation
From factory the unit is supplied and set with a pre-charge of nitrogen gas
(insert gas). Therefore, all insert gas must be purged before connecting the
assembly piping.
Unscrew the pinch pipe at the end of each refrigerant pipe.
Result: All inert gas escapes from the indoor unit.
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.
Purging the unit
4
Make a hole on the wall.
5
The pipes & cable should be gone through the bottom back hole.
6
Please remove 6 items when set is installed.
Ø60~65mm
Inside
room Outside
room
Drain hose
Less than 70mm
75mm
 The designs and shape are subject to
change according to the model.
Liquid refrigerant port
Gas refrigerant port

E-10
Connecting the refrigerant pipe
There are two refrigerant pipes of different diameters:
 A smaller one for the liquid refrigerant
 A larger one for the gas refrigerant

The thickness of tube should not be less than 1.0mm.
 The inside of copper tube must be clean & 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.
Outer Diameter Torque (kgf•cm)
6.35 mm (1/4”)
9.52 mm (3/8”)
12.70 mm (1/2”)
15.88 mm (5/8”)
145~175
333~407
505~615
630~769
Note If the pipes must be shortened refer to page 11.
2
Must use insulator which is thick enough to cover the refrigerant tube to
protect the condensate water on the outside of pipe falling onto the floor
and the efficiency of the unit will be better.
3
Cut off any excess foam insulation.
4
Be sure that there must be no crack or wave on the bended area.
5
It would be necessary to double the insulation thickness(10mm 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 that connect the indoor and
outdoor unit. The only permitted connections are those for which the units
are designed.
CAUTION
Use the bender which have a minimum
bending radius when you bend the pipe.
 Be careful so that the pipes is bended one
time only. Piping will be very difficult if
you repeat the bending more than twice.
If you bend the pipe by using spring
Bending radius should be more than
100mm so that pipe is not distorted.
Spring pipe
Refrigerant oil
Torque wrench
Flare nut
Union
Spanner
CAUTION Connect the indoor and outdoor units using pipes with flared co-
nnections(not supplied). For the lines, use insulated, unwelded, d-
egreased and deoxidized copper pipe,(Cu DHP type to ISO1337),
suitable for operating pressures of at least 4200kPa and for a burst
pressure of at least 20700kPa. Copper pipe for hydro-sanitary ap-
plications 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.