Samsung AVXDB*022** User manual

ENGLISH
ESPAÑOLFRANÇAISITALIANODEUTSCH
INSTALLATION
MANUAL
Duct Type Series
Built-in duct : AVXDB 
Slim duct : AVXDS 
DB98-24113A(3)SE F I D
Air Conditioner
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Contents
■ Safety Precautions ............................................................................................................ 3
■ Accessories ............................................................................................................................ 6
■ Selecting the Installation Location ....................................................................... 7
■ Indoor Unit Installation ................................................................................................. 13
■ Purging the Unit ................................................................................................................ 14
■ Connecting the Refrigerant Pipe ........................................................................... 15
■ Cutting/Flaring the Pipes ............................................................................................. 16
■ Performing Leak Test & Insulation ......................................................................... 17
■ Drain pipe and Drain hose Installation .............................................................. 19
■ Wiring Work .......................................................................................................................... 24
■ Increasing Fan Speed ..................................................................................................... 27
■ Indoor Unit Setting .......................................................................................................... 29
■ Additional Functions ...................................................................................................... 30
■ Final Checks and User Tips .......................................................................................... 31
■ Troubleshooting ................................................................................................................ 32
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ENGLISH
WARNING
• Risk of electric shock can cause injury or death. • Disconnect all remote
electric power supplies before servicing, installing or cleaning.
• Installation must be done by the manufacturer or service agent or a
similar qualified person in order to avoid a hazard.
INSTALLING THE UNIT
 The unit should not be installed by the user. Ask the dealer or
authorized company to install the units.
 If the unit is installed improperly, water leakage, electric shock or fire
may result.
 Mount with the lowest moving parts at least 2.5 m above the floor or
grade level. (If applicable)
 The manufacturer does not assume responsibility for accidents or
injury caused by an incorrectly installed air conditioner. If you are
unsure about installation, contact an installation specialist.
 When installing the built-in type air conditioner, keep all electrical
cables such as the power cable and the connection cord in pipe, ducts,
cable channels e.t.c to protect them against liquids, outside impacts
and so on.
 This appliance is not accessible to the general public. This appliance
should be installed according to the provided installation instruction.
 When installing the air conditioner in a small room, the measure not to
exceed the dangerous density is needed.
- When refrigerant leaks and exceeds the dangerous density,
suffocation may occur.
 If any gas or impurities except R410A refrigerant come into the
refrigerant pipe, serious problem may occur and it may cause injury.
 Use only rated accessories and install the air conditioner with rated
equipments.
- If you dont’t use the rated accessories, the air conditioner may
drop from its place, water may leak or electric shock or fire may occur.
 Ventilate your room when refrigerant gas leaks during installation.
- Toxic gas may generate when refrigerant gas contacts with heat.
Safety Precautions
The following safety precautions must be taken when using your air conditioner.
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Safety Precautions (Continued)
POWER SUPPLY LINE OR CIRCUIT BREAKER
 If the power cable of this air conditioner is damaged, it must be
replaced by service agent or similarly qualified persons in order to
avoid a hazard.
 The unit must be plugged into an independent circuit if applicable or
connect the power cable to the auxiliary circuit breaker. An all pole
disconnection from the power supply must be incorporated in
the fixed wiring with a contact opening of >3mm.
 The air conditioner must be installed in accordance with national
wiring regulations and safety regulations wherever applicable.
 The electric work must be done by service agent or similarly qualified
persons according to national wiring regulations and use only rated
cable.
- If the capacity of the power cable is insufficient or electric work
is not properly completed, electric shock or fire may occur.
 Install the cables with supplied cables firmly. Fix them securely so
that external force is not exerted to the terminal board.
- If the connection or fixing is incomplete, heat generation,
electric shock or fire may occur.
 Connect the power cable between the indoor and outdoor unit
properly so that the electrical component box cover is not get loosen
and attach the cover securely.
- If the the cover is attached incompletely, heat generation,
electric shock or fire of the terminal board may occur.
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ENGLISH
Safety Precautions (Continued)
 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.
 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 sulfurous 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 fiber or flammable dust
The place where thinner or gasoline is handled
Gas may leak and it may cause fire.
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Accessories
Pattern sheet Insulation A Insulation B Insulation C
Flexible hose Flexible hose clamp Insulation D Insulation cover E
Grommet Cable tie User's manual Installation manual
The following accessories are supplied with the indoor unit.
The type and quantity may differ depending on the specifications.
AVXDB
Pattern sheet Insulation cover drain Insulation Insulation cover band
Insulation pipe Insulation drain hose Cable-tie Flexible hose
Insulation drain sub User's manual Installation manual
AVXDS
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ENGLISH
Selecting the Installation Location
ENGLISH
Indoor Unit
 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.
 Make sure that the water dripping from the drain hose runs away
correctly and safely.
 The indoor unit must be installed in this way, that they are out of public
access. (Not touchable by the users)
 After connecting a chamber, insulate the connection part between the
indoor unit and the chamber with t10 or thicker insulation. Otherwise,
there can be air leak or dew from the connection part.
 Rigid wall without vibration.
 Where it is not exposed to direct sunshine.
 Where the air filter can be removed and cleaned easily.
Space Requirements for Indoor Unit
You must have 5mm or more space between the ceiling and the bottom of indoor unit.
Otherwise, the noise from the vibration of indoor unit may bother the user.
When the ceiling is under construction, the hole for check-up must be made to take service,
clean and repair the unit.
Inhaling from the back : more than 1500mm X 600mm
Inhaling from the bottom : more than 1500mm X 800mm
(Refer to page 10~12)
5mm
or more
5mm
or more
1500mm or more
1500mm or more
1500mm or more
1500mm or more
The following accessories are supplied with the indoor unit.
The type and quantity may differ depending on the specifications.
5mm
or more
AVXDB
AVXDS
small size : 650mm x 533mm or more
large size : 1120mm x 533mm or more (A space for repair and service)
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Selecting the Installation Location (Continued)
Unit : mm
No. Name Description
1 Liquid pipe connection ø6.35 (1/4”)
2 Gas pipe connection ø12.70 (1/2”)
3 Drain pipe connection (Option drain pump) VP25 (OD ø32, ID ø25)
4 Interunit wiring port
5 Power wiring port
6 Drain pipe connection VP25 (OD ø32, ID ø25)
7 Air filter
8 Hook 3/8” or M10
Dimension of the indoor unit
AVXDB022/028/036
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ENGLISH
ENGLISH
Selecting the Installation Location (Continued)
No. Name Description
1 Liquid pipe connection 056: ø6.35
(1/4”)
071: ø9.52 (3/8”)
2 Gas pipe connection 056: ø12.70
(1/2”)
071: ø15.88 (5/8”)
3 Drain pipe connection (Option drain pump) VP25 (OD ø32, ID ø25)
4 Interunit wiring port
5 Power wiring port
6 Drain pipe connection VP25 (OD ø32, ID ø25)
7 Air filter
8 Hook 3/8” or M10
Unit : mm
AVXDB056/071
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Selecting the Installation Location (Continued)
AVXDS022/028/036
Unit : mm
11.9 3256=768
71 100 10
938.4 Suspension position
1000 or more
Service space
600
477 Suspension position
8100=800
860 Air outlet duct flange
900
Inspection hole
22-ø3.2 Hole
28 28
All around
Discharge side Suction side
199
151.6
100
182
246
333
72.5 55
18
OD32
30.5 115.5
145.5
No. Name Description
1 Liquid pipe connection ø6.35 (1/4”)
2 Gas pipe connection ø12.70 (1/2”)
3 Drain pipe connection VP25 (OD ø32, ID ø25)
4 Drain pipe connection (Option drain pump) VP25 (OD ø32, ID ø25)
5 Power supply/Communication connection
6 Power supply connection
7 Air discharge grille flange
8 Hook 3/8” or M10
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ENGLISH
Selecting the Installation Location (Continued)
No. Name Description
1 Liquid pipe connection 045/056: ø6.35
(1/4”)
071: ø9.52 (3/8”)
2 Gas pipe connection 045/056: ø12.70
(1/2”)
071: ø15.88 (5/8”)
3 Drain pipe connection VP25 (OD ø32, ID ø25)
4 Drain pipe connection (Option drain pump) VP25 (OD ø32, ID ø25)
5 Power supply/Communication connection
6 Power supply connection
7 Air discharge grille flange
8 Hook 3/8” or M10
Unit : mm
12.9 3322=966
71 100 10
1138 Suspension position
1000 or more
Service space
600
477 Suspension position
10100=1000
1060 Air outlet duct flange
1100
Inspection hole
26-ø3.2 Hole
28 28
All around
Discharge side Suction side
199
151.6
100
182
246
333
72.5 55
18
OD32
30.5
115.5
144.5
AVXDS045/056/071
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Selecting the Installation Location (Continued)
No. Name Description
1 Liquid pipe connection ø9.52 (3/8”)
2 Gas pipe connection ø15.88 (5/8”)
3 Drain pipe connection VP25 (OD ø32, ID ø25)
4 Drain pipe connection (Option drain pump) VP25 (OD ø32, ID ø25)
5 Power supply/Communication connection
6 Power supply connection
7 Air discharge grille flange
8 Hook 3/8” or M10
Unit : mm
AVXDS112/128/140
15.9 4290=1160
83
288=176
10
1338 Suspension position
1000 or more
Service space
600
477 Suspension position
12100=1200
1260 Air outlet duct flange
1300
Inspection hole
32-ø3.2 Hole
28 28
All around
Discharge side Suction side
295
247.6
2100=200
186
250
337
72.5 55
18
OD32
29 115.5
145.5
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ENGLISH
Indoor Unit Installation
Ensure 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 suspension bolt is more than 1.5m,
it is required to prevent vibration.
CAUTION
CAUTION You must install the suspension bolts more than four
when installing the indoor unit.
Place the pattern sheet on the ceiling at the spot where you want to install the
indoor unit.
1
Insert bolt anchors. Use existing ceiling supports or construct a suitable support
as shown in figure.
2
Install the suspension bolts depending on the ceiling type.
3
Screw eight nuts to the suspension bolts making space for hanging the
indoor unit.
4
Hang the indoor unit to the suspension bolts between two nuts.
5
Screw the nuts to suspend the unit.
6
Adjust level of the unit by using measurement plate for all 4 sides.
7
 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 maintain the correct dimensions between the
markings.
Note
 For proper drainage of condensate, give a 3mm slant to the
drain hose port.
Note
 Piping must be laid and connected inside the ceiling when
suspending the unit. If the ceiling is already constructed, lay
the piping into position for connection to the unit before
placing the unit inside the ceiling.
Note
It is recommended to install theY-joint before installing the indoor unit.
Concrete
Suspension bolt(
3/8” or M10)-field supply
Hole in anchor
Hole in plug
Insert
Drain hose port
3mm
Rubber
Ceiling support
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Purging the Unit
 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.
Note
On delivery, the indoor unit is loaded with inert gas.
All this gas must therefore be purged before connecting the assembly piping.
To purge the inert gas, proceed as follows.
Unscrew the pinch pipe at the end of each refrigerant pipe.
Result: All inert gas escapes from the indoor unit.
 The designs and shape are subject to change
according to the model.
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ENGLISH
Connecting the Refrigerant Pipe
ENGLISH
Gas refrigerant port
Liquid refrigerant port
A
Drain hose port
There are two refrigerant pipes of differing diameters:
 A smaller one for the liquid refrigerant
 A larger one for the gas refrigerant
 The inside of copper pipe must be clean & has no dust.
The connection procedure for the refrigerant pipes varies according to the exit
position of the pipes from the indoor unit, as seen when facing the indoor in the “A”
side.
 Liquid refrigerant port
 Gas refrigerant port
 Drain hose port
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") 145~175
9.52 mm (3/8") 333~407
12.70 mm (1/2") 505~615
15.88 mm (5/8") 630~769
 Must apply refrigerant oil on the flaring area to prevent
a leak.
Note
2 Be sure that there must be no crack or kink on the bended area.
 The designs and shape are subject to change
according to the model.
Refrigerant oil
Torque wrench
Flare nut
Union
Spanner
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Cutting/Flaring the Pipes
1Make sure that you prepared the required tools.
(pipe cutter, reamer, flaring tool and pipe holder)
2If you want to shorten the pipe, cut it using a pipe cutter ensuring that the cut
edge remains at 90° with the side of the pipe. There are some
examples of correctly and incorrectly cut edges below.
3To prevent a gas leak, remove all burrs at the cut edge of the pipe using
a reamer.
4Carry out flaring work using flaring tool as shown below.
Outer diameter
(mm)
A(mm)
Flare tool for
R410A clutch type
Conventional flare tool
Clutch type Wing nut type
6.35 0~0.5 1.0~1.5 1.5~2.0
9.52 0~0.5 1.0~1.5 1.5~2.0
12.70 0~0.5 1.0~1.5 1.5~2.0
15.88 0~0.5 1.0~1.5 1.5~2.0
5Check if you flared the pipe correctly. There are some examples of
incorrectly flared pipes below.
6Outer diameter
(mm)
Connection
Torque (kgf•cm)
Flare dimension
(mm) Flare shape
6.35 145~175 8.70~9.10
90° ±2°
45° ±2°
R 0.4~0.8
9.52 333~407 12.80~13.20
12.70 505~615 16.20~16.60
15.88 630~769 19.30~19.70
O
Oblique
X
Rough
X
Burr
X
Inclined Damaged Surface Cracked Uneven Thickness
X X X X


In case of needing brazing, you must work with Nitrogen gas blowing.
CAUTION
Flaring tool
Clutch type Wing nut type
A
Die
Copper pipe
York
Die
Copper pipe
Flare nut
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ENGLISH
Performing Leak Test & Insulation
ENGLISH
To check for gas leaks on the indoor unit, check the connection part of
each refrigerant pipe by using
Nitrogen gas.
Leak Test
See details on the outdoor unit installation manual for leak test.
Note
 The designs and shape are subject to change
according to the model.
Leak check
Insulation
Gas side pipe Liquid side pipe
Insulation
Clamp
Fix it not to be get wider
Install the insulation
to be overlapped
Indoor unit
Insulation
Insulation
Once you have checked that there are no leaks in the system,
you can insulate the piping and hose.
1
Insulate the refrigerant pipe.

Be sure to insulate the refrigerant pipe, joint and connection part.
-If you insulate the pipes, the condensed water does not fall from the
pipes and the capacity of the air conditioner is improved.
 Check if there are any insulation cracks on the bent pipe.
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E-18
 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.
Performing Leak Test & Insulation (Continued)
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.
 The thickness according to the pipe size is a standard of the indoor tem-
perature of 27°C and humidity of 80%.
If installing in an unfavorable conditions, use thicker one.
 Insulation’s heat-resistance temperature should be more than 120℃.
Pipe size
(mm)
Minimum thickness
of insulation (mm) Remarks
PE foam EPDM foam
Ø 6.35~Ø15.88 13 10 If you install the pipe underground,
at the seaside, a spa or on the lake,
use 1 grade thicker one according
to the pipe size.
- 25 19
Refrigerant pipe before EEV kit and MCU or without EEV kit and MCU
 You can contact the gas side and liquid side pipes but the pipes
should not be pressed.
 When contacting the gas side and gas side pipe, use 1 grade thicker
insulation.
Refrigerant pipe after EEV kit and MCU
 Install the gas side and liquid side pipes, leave 10mm of space.
 When contacting the gas side and liquid side pipe, use 1 grade
thicker insulation.
Additional insulation
Hanger
Refrigerant pipe insulation
Gas pipe
10mm
Liquid pipe
Gas pipe
Liquid pipe
Insulation
Insulation
a×3
a
10mm10mm
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ENGLISH
Drain pipe and Drain hose Installation
Flexible hose
Insulation
Cable-tie
Clamp
Install the drain hose as short as possible.
1
Insulate the drain hose and then fix it as a picture.
2
Give a 3mm slant to the drain hose for proper drainage of
condensate.
Secure the drain hose with the cable-tie not to be separated
from the unit.
 The drain pump connection port is used when using a drain
pump.
Note
Assemble flexible hose with clamps between indoor unit
and drain pipe.
 Flexible hose clamps should be assembled tightly to prevent
being loosen. If it is loosen, it may cause water drops.
Note
AVXDS
Care must be taken when installing the drain hose for the indoor unit to ensure that any condensate
water is correctly drained outside. The drain hose can be installed to the right or left side of the base pan.
Remove the rubber cap of the drain hose port.
1
Insert the flexible hose to the drain hose port.
2
Attach the drain hose to the drain hose port with an
adhesive for PVC and tape to prevent water leaks, then
secure the hose with a band etc. (The band is not supplied
with the air conditioner.)
Note
AVXDB
Install the drain hose so that its length can be as short as possible.
Internal diameter of the drain hose should be the same or slightly bigger than the
external diameter of the drain hose port.
Diameter of the drain hose
3
Give a slightly slant to the drain hose for proper drainage of
condensate.
Secure the drain hose with an adhesive for PVC and tape not
to be separated from the unit.
Note
32mm(Outer diameter)
Wrap the drain hose with the insulation drain as shown in figure and secure it.
4

CAUTION
Must fit tightly against body
without any gap.
Insulation drain sub
Adhesives
Insulation cover drain
Insulation drain hose
No gap
Band(Not supplied)
Indoor
Unit
Adhesives
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E-20
Drain pipe and Drain hose Installation (Continued)
1Install horizontal drainpipe with a slope of 1/100 or more and fix it by hanger
space of 1.0~1.5m.
2Install U-trap at the end of the drainpipe to prevent a nasty smell to reach
the indoor unit.
3Do not install the drainpipe to upward position. It may cause water flow back
to the unit.
Drainpipe Connection
Without the drain pump
1~1.5m
Horizontal drainpipe
more than 1/100 slope
Ceiling
Hanger
Flexible hose
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