Samsung AC026MN1DKH/EU User Manual
Displayed below is the user manual for AC026MN1DKH/EU by Samsung which is a product in the Split-System Air Conditioners category. This manual has pages.
Related Manuals
Air conditioner
Installation manual
AC777MN7DKH
ŷThank you for purchasing this Samsung air conditioner.
ŷBefore operating this unit, please read this manual carefully and retain it for future
reference.
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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 Optional: Extending the power cable
Step 14 Setting the indoor unit addresses and the installation options
Optional: Installing DPM (Digital Packaged Multi)
Appendix 30
Troubleshooting
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Safety Information
WARNING
ŷ Hazards or unsafe practices that may result in severe
personal injury or death.
CAUTION
ŷ Hazards or unsafe practices that may result in minor
personal injury or property damage.
ŷ Carefully follow the precautions listed below because
they are essential to guarantee the safety of the
equipment.
WARNING
ŷ Always disconnect the air conditioner from the power
supply before servicing it or accessing its internal
components.
ŷ Verify that installation and testing operations are
performed by qualified personnel.
ŷ Verify that the air conditioner is not installed in an
easily accessible area.
General information
WARNING
ŷ 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.
ŷ For maximum safety, installers should always carefully
read the following warnings.
ŷ 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.
ŷ 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.
ŷ 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.
ŷ 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.
ŷ Do not use the units if damaged. If problems occur, switch
the unit off and disconnect it from the power supply.
ŷ 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.
ŷ Always remember to inspect the unit, electric
connections, refrigerant tubes and protections regularly.
These operations should be performed by qualified
personnel only.
ŷ The unit contains moving parts, which should always be
kept out of the reach of children.
ŷ Do not attempt to repair, move, alter or reinstall the unit.
If performed by unauthorized personnel, these operations
may cause electric shocks or fires.
ŷ Do not place containers with liquids or other objects on
the unit.
ŷ All the materials used for the manufacture and packaging
of the air conditioner are recyclable.
ŷ The packing material and exhaust batteries of the remote
controller(optional) must be disposed of in accordance
with current laws.
ŷ 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 authorised
centres or returned to the retailer so that it can be
disposed of correctly and safely.
Installing the unit
WARNING
IMPORTANT: When installing the unit, always remember to
connect first the refrigerant tubes, then the electrical lines.
ŷ Always disassemble the electric lines before the
refrigerant tubes.
ŷ 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.)
Safety Information
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Safety Information
English
Safety Information
ŷ After completing the installation, always carry out a
functional test and provide the instructions on how to
operate the air conditioner to the user.
ŷ 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.
ŷ 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
ŷ 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.
ŷ Always verify that a suitable grounding connection is
available.
ŷ 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.
ŷ Always verify that the cut-off and protection switches
are suitably dimensioned.
ŷ 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.
ŷ 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.
ŷ Devices disconnected from the power supply should be
completely disconnected in the condition of overvoltage
category.
ŷ 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 13 Optional: Extending the
power cable in the installation manual.
CAUTION
Make sure that you earth the cables.
ŷ 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.
ŷ 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.
ŷ 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.
ŷ 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.
ŷ The place where corrosive gas such as sulphuric acid gas
generates from the vent pipe or air outlet.
ŷ The copper pipe or connection pipe may corrode and
refrigerant may leak.
ŷ The place where there is a machine that generates
electromagnetic waves. The air conditioner may not
operate normally due to control system.
ŷ The place where there is a danger of existing
combustible gas, carbon fibre or flammable dust.
ŷ The place where thinner or gasoline is handled. Gas may
leak and it may cause fire.
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Installation Procedure
English
Installation Procedure
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.
1 way Cassette
Pattern sheet A (1)
Pattern sheet B (1) Insulation pipe (2)
Flexible hose (1) Insulation drain (1)
Rubber Installation manual (1)
Cable-tie (3) Installation gauge (1)
User manual (1)
4 way Cassette
Pattern sheet (1) Drain hose (1)
Insultaion pipe
(Liquid side1, gas side1) Insultaion drain hose (1)
Installation manual (1) User manual (1)
Cable-tie (6) Clamp (1)
Step 2 Choosing the installation
location
Installation location requirements
ŷ There must be no obstacles near the air inlet and
outlet.
ŷ Install the indoor unit on a ceiling that can support its
weight.
ŷ Maintain sufficient clearance around the indoor unit.
ŷ Before installing the indoor unit, be sure to check
whether the chosen location is well-drained.
ŷ The indoor unit must be installed such that it is
beyond public access and is not touchable by users.
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Installation Procedure
Installation Procedure
English
Indoor unit dimensions
1 way Cassette (Unit: mm)
970
280
150
25
410
460
1036
1074
1180
Power supply connection
Air discharge grille
Drain Hole
Air suction grille
Gas pipe connection (ø9.52)
Drain pipe connection
(VP20[OD26, ID20])
135
Model
AC026MN1DKH / AC035MN1DKH
Chassis
Small
Net dimension (W × D × H)
mm
970 X 410 X 135
Net weight kg 9.5
Liquid pipe connection
6.35
Gas pipe connection
9.52
Drain hose connection mm
outer diameter : 26, inner diameter : 20
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Installation Procedure
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4 way Cassette (Unit: mm)
55 55
55 55
950
840
840
330 240
270
300
370
346
185
Sub duct connection
BA
45
86
164
216
120
96
890~910 (Celling opening)
735 (Celling opening)
890~910 (Celling opening)
735 (Celling opening)
950
Model
AC052MN4DKH AC071MN4DKH AC090MN4DKH AC100MN4DKH AC120MN4DKH AC140MN4DKH
Chassis
Small Large Large+
A
204 288 288
B
253 337 337
Net dimension
(W × D × H)
mm
840 X 840 X 204 840 X 840 X 204 840 X 840 X 288 840 X 840 X 288 840 X 840 X 288 840 X 840 X 288
Net weight kg
15 15 18 18 18 20
Liquid pipe connection
6.35 6.35 9.52 9.52 9.52 9.52
Gas pipe connection
12.7 15.88 15.88 15.88 15.88 15.88
Drain hose
connection mm
outer diameter : 32, inner diameter : 26.5
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Installation Procedure
Installation Procedure
English
Spacing requirements
2500 mm or more
Obstruction
1500 mm or
more
20 mm
B
A
Model AC052MN4DKH
AC071MN4DKH
AC090MN4DKH
AC100MN4DKH
AC120MN4DKH
AC140MN4DKH
AC026MN1DKH
AC035MN1DKH
A251 335 170
B17 17 15
(Unit: mm)
1 way Cassette
C: 1500 mm or more
C
C
C
C
4 way Cassette
C: 1500 mm or more
C
C
C
C
CAUTION
ŷ 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.
ŷ Do not hold the discharge while carrying the indoor
unit to avoid the possibility of breakage.
ŷ 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.
1 way Cassette 4 way Cassette
A
D
B
C
E
D
A
E
B
C
Insulate the end of the pipe and some curved area by using separate insulator.
NOTE
ŷ 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 A B C D E
4 way Cassette <S>
(840x204x840)
AC052MN4DKH
910X151 940X151 610X151 650X151 870X870
AC071MN4DKH
4 way Cassette <L>
(840x288x840)
AC090MN4DKH
910X235 940X235 610X235 650X235 870X870
AC100MN4DKH
AC120MN4DKH
4 way Cassette <L+>
(840x288x840) AC140MN4DKH
1 way Cassette
(970x135x410)
AC026MN1DKH
990X155 990X155 430X155 430X155 990X430
AC035MN1DKH
(Unit: mm)
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Installation Procedure
Installation Procedure
English
Step 4 Installing the indoor unit
When deciding on the location of the air conditioner the
following restrictions must be taken into account.
1 Place the pattern sheet on the ceiling at the spot
where you want to install the indoor unit.
NOTE
ŷ 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 (M8) - eld supply
Insert
3 Install the suspension bolts, depending on the ceiling
type.
Ceiling support
CAUTION
ŷ 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.
ŷ If the length of the suspension bolt is more than 1.5
m, you are required to prevent vibration.
4 Screw eight pairs of nuts and washers to the
suspension bolts, making space for hanging the
indoor unit.
CAUTION
ŷ You must install all of the suspension rods.
ŷ 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. Cut a pad stopper and place it on the
suspension bolts to hold the washers. Remove the
stopper and screw the nuts to fix the unit.
1
2
2
6 Adjust the unit to the appropriate position, taking into
account the installation area for the front panel.
ŷ Place the pattern sheet on the indoor unit.
ŷ Adjust the space between the ceiling and the
indoor unit by using a dimension gauge.
ŷ Fix the indoor unit securely after adjusting the
level of the unit by using a leveller.
ŷ Remove the pattern sheet, connect the other
cables. and install the front panel.
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Installation Procedure
English
1 way Cassette
Level
vinyl tube
Gauge of dimensions
<Side view>
15 mm
CeilingCeiling
15 mm
4 way Cassette
Indoor unit Ceiling
Gauge of dimensions
17 mm
20 mm
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.
1 way Cassette
Liquid side
Gas side
Insulator
4 way Cassette
Liquid side
Gas side
Insulator
NOTE
ŷ 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
90°
9
Oblique
Rough
Burr
90
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
90° ±2°
R 0.4 to 0.8 mm
D
L
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
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Installation Procedure
Installation Procedure
English
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 :
ŷ A smaller one for the liquid refrigerant.
ŷ 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.
2
3
3
1
Torque
wrench
Flare nut
Spanner
Union
Outer Diameter (mm) 7RUTXH1ŷP
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
1ŷP NJIŷFP
NOTE
ŷ If the pipes must be shortened, see Step 6 Cutting
and flaring the pipes on page 11.
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.
CAUTION
ŷ 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
4.2MPa and for a burst pressure of at least 20.7MPa.
Copper pipe for hydro-sanitary applications is
completely unsuitable.
ŷ For sizing and limits (height difference, line length,
max. bends, refrigerant charge, etc.) see the outdoor
unit installation manual.
ŷ All refrigerant connection must be accessible, in order
to permit either unit maintenance or removing it
completely.
ŷ If the pipes require brazing, make sure that oxygen
free nitrogen (OFN) is flowing through the system.
ŷ Nitrogen blowing pressure range is 0.02 to 0.05 MPa.
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Installation Procedure
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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 pressurizing system
with nitrogen.
1 way Cassette
Liquid side
Gas side
Insulator
4 way Cassette
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
ŷ Always make the seam of pipes face upwards.
2 Wind insulating tape around the pipes and drain hose
avoiding compressing the insulation too much.
Insulation cover pipe
Insulation pipe
Be sure to overlap the insulation.
Indoor unit
CAUTION
ŷ Be sure to wrap insulation tightly without any gaps.
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.
CAUTION
ŷ Make sure that all refrigerant connection must be
accessible for easy maintenance and detachment.
ŷ Install the insulation not to get wider and use the
adhesives on the connection part of it to prevent
moisture from entering.
ŷ Wind the refrigerant pipe with insulation tape if it is
exposed to outside sunlight.
ŷ Install the refrigerant pipe respecting that the
insulation does not get thinner on the bent part or
hanger of pipe.
ŷ Add the additional insulation if the insulation plate
gets thinner.
a x 3
Hanger
Additional insulation
aRefrigerant pipe
insulation
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Installation Procedure
Installation Procedure
English
5 Select the insulation of the refrigerant pipe.
ŷ Insulate the gas side and liquid side pipe, noting
the insulation thickness that must differ according
to the pipe size.
ŷ 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.
ŷ The heat-resistance temperature of the insulator
must be more than 120°C.
Pipe Pipe size
Insulation type
(heating/cooling)
Remarks
Standard
(Less than
30°C,
85%)
High
humidity
(Over 30°C,
85%)
EPDM, NBR
Liquid
pipe
Ø6.35 to
Ø9.52 9t 9t
The internal
temperature
is higher than
120°C.
Ø12.7 to
Ø19.05 13t 13t
Gas
pipe
Ø6.35 13t 19t
Ø9.52
19t 25t
Ø12.70
Ø15.88
Ø19.05
ŷ 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 Be sure to bond the drain
hose and the main pipe.
Drain 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.
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Installation Procedure
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ŷ Install air ventilation to drain condensation smoothly.
Air ventilation
Ceiling
ŷ 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
550 mm
or less
20 mm or more
1/100 or more
Drain hose
Ceiling
ŷ 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
ŷ 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
ŷ Install horizontally.
Indoor unit
Be horizontal
Flexible hose
ŷ Max. allowable axis gap.
Indoor unit
Max. 20 mm
ŷ Max. allowable bending angle.
Max. 30˚
Indoor unit
NOTE
ŷ If a concentrated drain pipe is installed, refer to the
figure below.
Air ventilation
Concentrated
drain pipe
1/100 or more slope100 mm or more
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Installation Procedure
Installation Procedure
English
Step 11 Performing the drainage test
1 Do a leak test at the connection part of the flexible
hose and the drian pipe:
a Connect a general hose to the connection part of
the flexible hose of the indoor unit, and pour in
some water.
Hose
Flexible hose
Water leakage
check part
b After pouring some water, reassemble the rubber
cap on the connection part of a flexible hose of
the indoor unit and firmly tighten it with a band
to prevent leakage.
c Check the leak test at the part where the adhesive
for the flexible hose and the drian pipe is used.
CAUTION
ŷ The leak test must be performed for at least 24
hours.
2 Check the condensed water drainage:
a Pour about 2 liters of water into the indoor unit
drain pan as shown in the picture.
1 way Cassette
4 way Cassette
b When the electric cable connection is completed
ŷ Turn on the indoor unit and outdoor unit.
ŷ Operate in the Cool mode.
CAUTION
ŷ Only in the Cool mode, you can check the correct
operation of the drain pump.
When the electric cable connection has not been
completed
ŷ Remove the control box cover of the indoor unit.
ŷ Connect the power supply (220~240V, 50 Hz) to
the L and N terminals.
ŷ Reassemble the control box cover and turn on the
indoor unit.
CAUTION
ŷ When the float switch is not detected due to
insufficient water on the drain pan, the drain
pump will not work.
ŷ If the power supply is directly connected to the
L and N terminals, communication error message
might appear.
ŷ After completing the drainage check, turn the
unit off and disconnect the power supply.
ŷ Reassemble the control box cover.
c Check whether the drain pump works correctly.
d Check whether the drainage is performing
correctly at the end of the drain pipe.
e Check for leakage at the drain pipe and drain pipe
connection part.
f When leakage occurs, check whether the indoor
unit is level and check the drain hose connection
part, drainpipe connection part and drain pump
connection.
g When the drainage check is completed and the
condensed water remains on the drain pan,
remove the water.
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Installation Procedure
English
Step 12 Connecting the power and
communication cables
CAUTION
ŷ Always remember to connect the refrigerant pipes
before performing the electric connections.
When disconnecting the system, always disconnect
the electric cables before disconnecting the
refrigerant pipes.
CAUTION
ŷ Always remember to connect the air conditioner to
the grounding system before performing the electric
connections. Use a crimp ring terminal at the end of
each wire.
The indoor unit is powered through the outdoor unit by
means of a H07 RN-F connection cable (or a more power
model), with insulation in synthetic rubber and a jacket
in polychloroprene (neoprene), in accordance with the
requirements specified in the standard EN 60335-2-40.
1 Remove the screw on the electrical component box
and remove the cover plate.
2 Route the connection cord through the side of the
indoor unit and connect the cable to the terminals
refer to the figure below.
3 Route the other end of the cable to the outdoor unit
through the ceiling & the hole on the wall.
4 Reassemble the electrical component box cover,
carefully tightening the screw.
1 phase
Indoor Unit
1(L)
2(N) F2
F1
Outdoor
Unit
Indoor Power Main power cable Communication cable
Cable
Tie
1(L) 2(N) N
L
Cable
clamp
3 phase
1(L) 2(N)
L2(S) L3(T)
N
L1(R)
3 Phase 4 Wires power cable
(AC 380V)
Indoor Unit
1(L)
2(N) F2
F1
Indoor
Power
Communication
cable
Cable
Tie
Outdoor
Unit
Cable
clamp
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Installation Procedure
Installation Procedure
English
Indoor power supply
Power supply Max/Min(V) Indoor power cable
220 to 240V, 50 Hz ±10% 0.75 to 1.5 mm², 3 wires
Communication cable
0.75 to 1.5 mm², 2 wires
AC power: M4 screw Communication: M3.5 screw
11 13 7.5 9.0
18
13.8
7LJKWHQLQJWRUTXHNJIŷFP
M3.5 8.0 to 12.0
M4 12.0 to 18.0
ŷ 1yP NJIyFP
ŷ Power supply cords of parts of appliances for
outdoor use shall not be lighter than polychloroprene
sheathed flexible cord. (Code designation IEC:60245
IEC 57 / CENELEC: H05RN-F or IEC:60245 IEC 66 /
CENELEC: H07RN-F)
ŷ Since it has the external power supply, refer to the
outdoor unit installation manual for MAIN POWER.
CAUTION
ŷ When installing the indoor unit in a computer
room or network room, use the double shielded
communication cable (tape aluminum / polyester
braid + copper) of FROHH2R type.
Step 13 Optional: Extending the
power cable
1 Prepare the following tools.
Tools Spec Shape
Crimping pliers MH-14
Connection sleeve
(mm)
20xØ6.5
(HxOD)
Insulation tape Width 19
mm
Contraction tube
(mm)
70xØ8.0
(LxOD)
2 As shown in the figure, peel off the shields from the
rubber and wire of the power cable.
ŷ Peel off 20 mm of cable shields from the pre-
installed tube.
CAUTION
ŷ For information about the power cable
specifications for indoor and outdoor units, refer
to the installation manual.
ŷ After peeling off cable wires from the pre-installed
tube, insert a contraction tube.
Power cable
Pre-installed tube for the power cable
(Unit: mm)
(Unit: mm)
20 20
20
20
60
120
180
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Installation Procedure
English
3 Insert both sides of core wire of the power cable into
the connection sleeve.
ŷ Method 1: Push the core wire into the sleeve from
both sides.
ŷ Method 2: Twist the wire cores together and push
it into the sleeve.
Connection sleeve Connection sleeve
Method 1 Method 2
4 Using a crimping tool, compress the two points and
flip it over and compress another two points in the
same location.
ŷ The compression dimension should be 8.0.
Compression
dimension
ŷ After compressing it, pull both sides of the wire to
make sure it is firmly pressed.
Compress it 4 times.
5 mm
Compress it 4 times.
5 mm
Method 1 Method 2
5 Wrap it with the insulation tape twice or more and
position your contraction tube in the middle of the
insulation tape.
Three or more layers of insulation are required.
Method 1 Method 2
Insulation tape
35 mm40 mm
Insulation tape
6 Apply heat to the contraction tube to contract it.
Contraction tube
7 After tube contraction work is completed, wrap it with
the insulation tape to finish.
Insulation tape
CAUTION
ŷ Make sure that the connection parts are not exposed
to outside.
ŷ Be sure to use insulation tape and a contraction tube
made of approved reinforced insulating materials that
have the same level of withstand voltage with the
power cable. (Comply with the local regulations on
extensions.)
WARNING
ŷ In case of extending the electric wire, please DO NOT
use a round-shaped Pressing socket.
– Incomplete wire connections can cause electric
shock or a fire.
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Installation Procedure
Installation Procedure
English
Step 14 Setting the indoor unit
addresses and the installation options
You cannot set both of the indoor unit addresses and
the installation options in a batch: set both of them
respectively.
Common steps for setting the addresses and
options
MR-EC00 and MR-EH00 remote controls
Low Temp button
High Temp button
Mode button
Low Fan button
High Fan button
Setting the
option values
Entering the
mode for setting
the options
NOTE
ŷ The remote control display and buttons may vary
depending on the model.
1 Enter the mode for setting the options:
a Remove the batteries from the remote control,
and then insert them again.
b While holding down the (High Temp) and
(Low Temp) buttons simultaneously, insert the
batteries into the remote control.
c Make sure that you are entered to the mode for
setting the options:
2 Set the option values.
CAUTION
ŷ The total number of available options are 24: SEG1 to
SEG24.
ŷ Because SEG1, SEG7, SEG13, and SEG19 are the page
options used by the previous remote control models,
the modes to set values for these options are skipped
automatically.
ŷ Set a 2-digit value for each option pair in the
following order: SEG2 and SEG3 ĺ SEG4 and SEG5
ĺ SEG6 and SEG8 ĺ SEG9 and SEG10 ĺ SEG11 and
SEG12 ĺ SEG14 and SEG15 ĺ SEG16 and SEG17 ĺ
SEG18 and SEG20 ĺ SEG21 and SEG22 ĺ SEG23 and
SEG24
SEG1 SEG2 SEG3 SEG4 SEG5 SEG6
0XXXXX
SEG7 SEG8 SEG9 SEG10 SEG11 SEG12
1XXXXX
SEG13 SEG14 SEG15 SEG16 SEG17 SEG18
2XXXXX
SEG19 SEG20 SEG21 SEG22 SEG23 SEG24
3XXXXX
On (SEG1 to SEG12) Off (SEG13 to SEG24)
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Installation Procedure
English
Take the steps presented in the following table:
Steps Remote control display
1 Set the SEG2 and SEG3 values:
a Set the SEG2 value by pressing the (Low Fan) button repeatedly until the
value you want to set appears on the remote control display.
SEG2
b Set the SEG3 value by pressing the (High Fan) button repeatedly until the
value you want to set appears on the remote control display.
When you press the (Low Fan) or (High Fan) button, values appear in the
following order: SEG3
2 Press the (Mode) button. Cool and On appear on the remote control display.
3 Set the SEG4 and SEG5 values:
a Set the SEG4 value by pressing the (Low Fan) button repeatedly until the
value you want to set appears on the remote control display.
SEG4
b Set the SEG5 value by pressing the (High Fan) button repeatedly until the
value you want to set appears on the remote control display.
When you press the (Low Fan) or (High Fan) button, values appear in the
following order: SEG5
4 Press the (Mode) button. Dry and On appear on the remote control display.
5 Set the SEG6 and SEG8 values:
a Set the SEG6 value by pressing the (Low Fan) button repeatedly until the
value you want to set appears on the remote control display.
SEG6
b Set the SEG8 value by pressing the (High Fan) button repeatedly until the
value you want to set appears on the remote control display.
When you press the (Low Fan) or (High Fan) button, values appear in the
following order: SEG8
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Installation Procedure
Installation Procedure
English
Steps Remote control display
6 Press the (Mode) button. Fan and On appear on the remote control display.
7 Set the SEG9 and SEG10 values:
a Set the SEG9 value by pressing the (Low Fan) button repeatedly until the
value you want to set appears on the remote control display.
SEG9
b Set the SEG10 value by pressing the (High Fan) button repeatedly until the
value you want to set appears on the remote control display.
When you press the (Low Fan) or (High Fan) button, values appear in the
following order: SEG10
8 Press the (Mode) button. Heat and On appear on the remote control display.
9 Set the SEG11 and SEG12 values:
a Set the SEG11 value by pressing the (Low Fan) button repeatedly until the
value you want to set appears on the remote control display.
SEG11
b Set the SEG12 value by pressing the (High Fan) button repeatedly until the
value you want to set appears on the remote control display.
When you press the (Low Fan) or (High Fan) button, values appear in the
following order: SEG12
10 Press the (Mode) button. Auto and Off appear on the remote control display.
11 Set the SEG14 and SEG15 values:
a Set the SEG14 value by pressing the (Low Fan) button repeatedly until the
value you want to set appears on the remote control display.
SEG14
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Installation Procedure
English
Steps Remote control display
b Set the SEG15 value by pressing the (High Fan) button repeatedly until the
value you want to set appears on the remote control display.
When you press the (Low Fan) or (High Fan) button, values appear in the
following order: SEG15
12 Press the (Mode) button. Cool and Off appear on the remote control display.
13 Set the SEG16 and SEG17 values:
a Set the SEG16 value by pressing the (Low Fan) button repeatedly until the
value you want to set appears on the remote control display.
SEG16
b Set the SEG17 value by pressing the (High Fan) button repeatedly until the
value you want to set appears on the remote control display.
When you press the (Low Fan) or (High Fan) button, values appear in the
following order: SEG17
14 Press the (Mode) button. Dry and Off appear on the remote control display.
15 Set the SEG18 and SEG20 values:
a Set the SEG18 value by pressing the (Low Fan) button repeatedly until the
value you want to set appears on the remote control display.
SEG18
b Set the SEG20 value by pressing the (High Fan) button repeatedly until the
value you want to set appears on the remote control display.
When you press the (Low Fan) or (High Fan) button, values appear in the
following order: SEG20
16 Press the (Mode) button. Fan and Off appear on the remote control display.
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Installation Procedure
Installation Procedure
English
Steps Remote control display
17 Set the SEG21 and SEG22 values:
a Set the SEG21 value by pressing the (Low Fan) button repeatedly until the
value you want to set appears on the remote control display.
SEG21
b Set the SEG22 value by pressing the (High Fan) button repeatedly until the
value you want to set appears on the remote control display.
When you press the (Low Fan) or (High Fan) button, values appear in the
following order: SEG22
18 Press the (Mode) button. Heat and Off appear on the remote control display.
19 Set the SEG23 and SEG24 values:
a Set the SEG23 value by pressing the (Low Fan) button repeatedly until the
value you want to set appears on the remote control display.
SEG23
b Set the SEG24 value by pressing the (High Fan) button repeatedly until the
value you want to set appears on the remote control display.
When you press the (Low Fan) or (High Fan) button, values appear in the
following order: SEG24
3 Check whether the option values that you have set are correct by pressing the (Mode) button repeatedly
[
SEG21
,
SEG22
]
[
SEG23
,
SEG24
]
4
4
[
SEG2
,
SEG3
]
[
SEG4
,
SEG5
]
[
SEG6
,
SEG8
]
[
SEG9
,
SEG10
]
0
0
[
SEG11
,
SEG12
]
[
SEG14
,
SEG15
]
[
SEG16
,
SEG17
]
7
7
[
SEG18
,
SEG20
]
00
4 Save the option values into the indoor unit:
Point the remote control to the remote control sensor on the indoor unit and then press the (Power) button
on the remote control twice. Make sure that this command is received by the indoor unit. When it is successfully
received, you can hear a short sound from the indoor unit. If the command is not received, press the (Power)
button again.
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Installation Procedure
English
5 Check whether the air conditioner operates in accordance with the option values you have set:
a Reset the indoor or outdoor unit.
ŷ Indoor unit : Press the (Set) and (Low Fan) buttons on the remote control simultaneously for 4
seconds.
ŷ Outdoor unit : Press the K3 button.
b Remove the batteries from the remote control, insert them again, and then press the (Power) button on the
remote control.
Setting the indoor unit addresses
Option No. for an indoor unit address: 0AXXXX-1XXXXX-2XXXXX-3XXXXX
Before installing an indoor unit, be sure to set an address for the indoor unit by taking the following steps:
1 Make sure that the power is supplied to the
indoor unit. If the indoor unit is not plugged in,
it must include a power supply.
F1
1(L) 2(M)
F2 V1 V2 F3 F4
Indoor Unit
2 Set an address for each indoor unit using the remote control, according to your air conditioning system plan, by
referring to the following table and by following the steps in Common steps for setting the addresses and options
on page 20.
ŷ The indoor unit addresses (main and RMC addresses) are set to 0A0000-100000-200000-300000 by default.
ŷ If indoor units and outdoor units match 1:1, you don’t need to set the main address because it is automatically
set by the outdoor unit.
ŷ If you are using on or off controller, set RMC address.
Option SEG1 SEG2 SEG3 SEG4 SEG5 SEG6
Function Page Mode Setting main address
Reserved
Indoor unit
number
Indoor unit
number
Indication
and details
Indication Details Indication Details Indication Details Indication Details Indication Details
0A
0No main
address 0 to 1 Tens
digit 0 to 9 Units
digit
1Main address
setting mode
Option SEG7 SEG8 SEG9 SEG10 SEG11 SEG12
Function Page
Reserved
Setting RMC address
Reserved
Group channel
(x16) Group address
Indication
and details
Indication Details Indication Details Indication Details Indication Details
1
0No RMC
address RMC1 0 to 2 RMC2 0
to F
1RMC address
setting mode
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Installation Procedure
Installation Procedure
English
CAUTION
ŷ The main address must be set to a value in the range 0 to 14. If you set other values, communication error will
occur.
ŷ If any of SEG5 and SEG6 is set to a value in the range A to F, the main address of the indoor unit does not change.
ŷ If SEG3 is set to 0, the indoor unit maintains the existing main address even if SEG6 is set to a new value.
ŷ If SEG9 is set 0, the indoor unit maintains the existing RMC address even if SEG11 and SET12 are set to new
values.
Setting the installation options in a batch
Option No. for an indoor unit address: 02XXXX-1XXXXX-2XXXXX-3XXXXX
1 Make sure that the power is supplied to the
indoor unit. If the indoor unit is not plugged in,
it must include a power supply.
F1
1(L) 2(M)
F2 V1 V2 F3 F4
Indoor Unit
2 Set the installation options of indoor units, by referring to the following table and by following the steps in
Common steps for setting the addresses and options on page 20.
ŷ The installation options of indoor units are set to 020000-100000-200000-300000 by default.
ŷ The SEG20 option, Individual control with remote control, allows you to control multiple indoor units
individually by using the remote control.
Option
SEG1 SEG2 SEG3 SEG4 SEG5 SEG6
Function
Page Mode
Reserved
Use of external
temperature
sensor
Use of central
control
Compensation of
the fan RPM
Indication
and details
Indication
Details
Indication
Details
Indication
Details
Indication
Details
Indication
Details
02
0 Disuse 0 Disuse
0
Disuse
(recessed
installation)
1
High-ceiling
mode
(recessed
installation)
1 Use 1 Use
4
Disuse
(exposed
installation)
5
High-ceiling
mode
(exposed
installation)
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Installation Procedure
English
Option
SEG7 SEG8 SEG9 SEG10 SEG11 SEG12
Function
Page Use of drain pump
Reserved Reserved Reserved Reserved
Indication
and details
Indication
Details
Indication
Details
1
0
Disuse
1
Use
2
Use with 3
minute delay
Option
SEG13 SEG14 SEG15 SEG16 SEG17 SEG18
Function
Page Use of external control
Setting the
output of
external control
S-Plasma ion Buzzer control Maximum filter
usage time
Indication
and details
Indication
Details
Indication
Details
Indication
Details
Indication
Details
Indication
Details
Indication
Details
2
0
Disuse
Slave
(disable
Level
control*)
0
Thermo
on
0
Disuse
0
Use of
buzzer
2
1000
hours
1
On/Off
control
2
Off
control
3
Window
on/off
control
4
Disuse
Master
(enable
Level
control*)
1
Operation
on
1
Use
1
Disuse of
buzzer
6
2000
hours
5
On/Off
control
6
Off
control
7
Window
on/off
control
Option
SEG19 SEG20 SEG21 SEG22 SEG23 SEG24
Function
Page Individual control with
remote control
Heating setting
compensation
Reserved Reserved
Cycle time of
Swing
Indication
and details
Indication
Details
Indication
Details
Indication
Details
Indication
Details
3
0 or
1
Indoor 1
0
Default
0
34
seconds
(default)
2
Indoor 2
12°C 1 30
seconds
3
Indoor 3
25°C 2 38
seconds
4
Indoor 4
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Installation Procedure
Installation Procedure
English
ŷ Even if you set the Use of drain pump (SEG8) option to 0, it is automatically set to 2 (the drain pump is used with 3
minute delay).
ŷ If you set the Maximum filter usage time (SEG18) option to a value other than 2 and 6, it is automatically set to 2
(1000 hours).
ŷ If you set the Individual control with remote control (SEG20) option to a value other than 0 to 4, it is automatically
set to 0 (Indoor 1).
ŷ Default value of Heating setting compensation (SEG21) is 5°C for 360 cassette model.
* Level control: The centralized controller can limit the functions and inputs of connected products with this
function enabled. (Example: Operation mode limit (Cooling only/Heating only/No limitation), Heating
temperature upper limit, Cooling temperature lower limit)
To enable 'Level control' when applying the DPM with the centralized controller, appoint the master
(Set 'Use of external control [SEG14] option to 4 or higher).
Example: When installing DPM (1 Outdoor unit with 4 indoor units)
Condition SEG14 Setting Result
External control Level control Indoor 1 Indoor 2 Indoor 3 Indoor 4
Default Not set (0) Slave (All)
Disuse Use 4 Not set (0) Not set (0) Not set (0) Master (Indoor 1), Slave
(Indoor 2,3,4)
Use (Indoor 3) Disuse Not set (0) Not set (0) 1~3 Not set (0) Slave (All)
Use (Indoor 4) Use Not set (0) Not set (0) Not set (0) 5~7 Master (Indoor 4), Slave
(Indoor 1,2,3)
Changing the addresses and options individually
When you want to change the value of a specific option, refer to the following table and follow the steps in Common
steps for setting the addresses and options on page 20.
Option SEG1 SEG2 SEG3 SEG4 SEG5 SEG6
Function Page Mode Option mode to
change
Tens position
of the option
number
Units position
of the option
number
New value
Indication
and
details
Indication
Details
Indication
Details
Indication
Details
Indication
Details
Indication
Details
Indication
Details
0D
Option
type 0 to F
Tens
position
value
0 to 9
Units
position
value
0 to 9 New
value 0 to F
Example: Changing the Buzzer control (SEG17) option of the installation options to 1 disuse.
Option SEG1 SEG2 SEG3 SEG4 SEG5 SEG6
Function Page Mode Option mode to
change
Tens position
of the option
number
Units position
of the option
number
New value
Indication 0 D 2 1 7 1
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Installation Procedure
English
Installation Procedure
Optional: Installing DPM (Digital Packaged Multi)
NOTE
Only AC071MN4DKH, AC100MN4DKH, AC120MN4DKH, AC026MN1DKH and AC035MN1DKH models are available to
install DPM.
ŷ When installing DPM, you should set "DPM setting" to the outdoor unit.
ŷ You do not need to set the address manually for the indoor unit.
ŷ If DPM model is not set, communication error may occur.
ŷ While the outdoor unit is tracking the indoor unit for one minute after the power supply is turned on, the operation
may stop if the remote control reception signal of the installed indoor unit is different.
ŷ To enable Level contol with the centralized controller, refer to page 27, 28.
CAUTION
ŷ When installing DPM, only one external controller can be connected.
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Troubleshooting
Appendix
Troubleshooting
1 way Cassette
Abnormal conditions
LED lamp display
Remarks
Operation Defrost
Timer Fan Filter
reset
Blue Yellow
Power reset XXXX
Error of temperature sensor in the indoor unit (Open/
Short) XX XX
Error of heat exchanger sensor in the indoor unit XXX
Error of the outdoor temperature sensor
Error of the condensor temperature sensor
Error of the discharge temperature sensor
XX X
1. No communication for 2 minutes between indoor
units (Communication error for more than 2 minutes)
2. Indoor unit receiving the communication error from
outdoor unit
3. Outdoor unit tracking 3 minutes error
4. When sending the communication error from the
outdoor unit, the mismatching of the communication
numbers and installed numbers after completion
of tracking. (Communication error for more than 2
minutes
XX X
1. Indoor unit
error (Display is
unrelated with
operation)
2. Outdoor unit
error (Display is
unrelated with
operation
Communication error between indoor units XXX
1. Error of electronic expansion valve open
2. 2’nd detection of high temperature cond
3. 2’nd detection of high temperature discharge
4. Error of reverse phase
5. Compressor down due to 6th detection of freezing
XX
Detection of the float switch X X X
Error of setting option switches for optional accessories X X X
EEPROM error X X
EEPROM option error
Error on indoor fan motor (E154) X X X X
: On, : Flickering, X : Off
ŷ If you turn off the air conditioner when the LED is flickering, the LED is also turned off.
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31English
Appendix
4 way Cassette
Abnormal conditions
LED lamp display
Remarks
Operation Defrost Timer Filter
Power reset XXX
Error of temperature sensor in the indoor unit
(Open/ Short) XXX
Error of heat exchanger sensor in the indoor unit
(Open/Short) XX
Error of fan motor in the indoor unit X X X
Error of the outdoor temperature sensor
Error of the condensor temperature sensor
Error of the discharge temperature sensor
X X
No communication for 2 minutes between
indoor and outdoor unit (communication error
for more than 2 minutes)
XX
Error of outdoor unit
Error of the terminal block thermal fuse (Open) X
Detection of the float switch X X
EEPROM ERROR
EEPROM option error
Outdoor valve clogging error X
: On, : Flickering, X : Off
ŷ If you turn off the air conditioner when the LED is flickering, the LED is also turned off.
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