Samsung AR BSHUMGM Series User manual

Airconditioner
Installation manual
AR**BSHUMGM**
•Thank you for purchasing this Samsung airconditioner.
•Before operating this unit, please read this manual carefully and retain it for future reference.

2English
Contents
Safety Information 3
Installation Procedure 5
Step 1 Checking and preparing accessories and tools 5
Step 2 Choosing the installation location 5
Step 3 Drilling a hole through the wall 6
Step 4 Fixing the installation plate 7
Step 5 Purging the unit 7
Step 6 Cutting or flaring the pipes 8
Step 7 Connecting the refrigerant pipe 9
Step 8 Performing leak test 10
Step 9 Wrapping the pipes with the insulation 10
Step 10 Installing and connecting the drain hose 11
Step 11 Optional: Extending the drain hose 11
Step 12 Optional: Changing the direction of the drain hose 12
Step 13 Connecting the power and communication cables 12
Step 14 Optional: Extending the power cable 14
Appendix 16
Troubleshooting 16

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English
Safety Information
California Proposition 65 Warning (US)
WARNING
Cancer and Reproductive Harm - www.P65Warnings.ca.gov.
WARNING
• Hazards or unsafe practices that may result in severe personal
injury or death.
CAUTION
• Hazards or unsafe practices that may result in minor personal
injury or property damage.
• Carefully follow the precautions listed below because they are
essential to guarantee the safety of the equipment.
WARNING
• Always disconnect the air conditioner from the power supply
before servicing it or accessing its internal components.
• Verify that installation and testing operations are performed
by qualified personnel.
• Verify that the air conditioner is not installed in an easily
accessible area.
General information
WARNING
• Carefully read the content of this manual before installing the
air conditioner and store the manual in a safe place in order to
be able to use it as reference after installation.
• For maximum safety, installers should always carefully read
the following warnings.
• Store the operation and installation manual in a safe location
and remember to hand it over to the new owner if the air
conditioner is sold or transferred.
• This manual explains how to install an indoor unit with a split
system with two SAMSUNG units. The use of other types of
units with different control systems may damage the units
and invalidate the warranty. The manufacturer shall not be
responsible for damages arising from the use of non compliant
units.
• The manufacturer shall not be responsible for damage
originating from unauthorized changes or the improper
connection of electric and requirements set forth in the
“Operating limits” table, included in the manual, shall
immediately invalidate the warranty.
• The air conditioner should be used only for the applications for
which it has been designed: the indoor unit is not suitable to
be installed in areas used for laundry.
• Do not use the units if damaged. If problems occur, switch the
unit off and disconnect it from the power supply.
• In order to prevent electric shocks, fires or injuries, always stop
the unit, disable the protection switch and contact SAMSUNG’s
technical support if the unit produces smoke, if the power
cable is hot or damaged or if the unit is very noisy.
• Always remember to inspect the unit, electric connections,
refrigerant tubes and protections regularly. These operations
should be performed by qualified personnel only.
• The unit contains moving parts, which should always be kept
out of the reach of children.
• Do not attempt to repair, move, alter or reinstall the unit. If
performed by unauthorized personnel, these operations may
cause electric shocks or fires.
• Do not place containers with liquids or other objects on the
unit.
• All the materials used for the manufacture and packaging of
the air conditioner are recyclable.
• The packing material and exhaust batteries of the remote
controller(optional) must be disposed of in accordance with
current laws.
• The air conditioner contains a refrigerant that has to be
disposed of as special waste. At the end of its life cycle, the
air conditioner must be disposed of in authorised centres 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.
Safety Information

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Safety Information
Installing the unit
WARNING
IMPORTANT: When installing the unit, always remember to
connect first the refrigerant tubes, then the electrical lines.
• Always disassemble the electric lines before the refrigerant
tubes.
• Upon receipt, inspect the product to verify that it has not been
damaged during transport. If the product appears damaged,
DO NOT INSTALL it and immediately report the damage to the
carrier or retailer (if the installer or the authorized technician
has collected the material from the retailer.)
• After completing the installation, always carry out a functional
test and provide the instructions on how to operate the air
conditioner to the user.
• Do not use the air conditioner in environments with hazardous
substances or close to equipment that release free flames to
avoid the occurrence of fires, explosions or injuries.
• Excessive indoor humidity or clogged condensate drain lines
may cause water to drip from indoor units. Do not install the
indoor unit where dripping could result in damage to property,
such as above electronic equipment or other sensitive
instruments
• Our units should be installed in compliance with the spaces
shown in the installation manual, to ensure accessibility from
both sides and allow repairs or maintenance operations to be
carried out. The unit’s components should be accessible and
easy to disassemble without endangering people and objects.
For this reason, when provisions of the installation manual
are not complied with, the cost required to access and repair
the units (in SAFETY CONDITIONS, as set out in prevailing
regulations) with harnesses, ladders, scaffolding or any other
elevation system will NOT be considered part of the warranty
and will be charged to the end customer.
Power supply line, fuse or
circuit breaker
WARNING
• Always make sure that the power supply is compliant with
current safety standards. Always install the air conditioner in
compliance with current local safety standards.
• Always verify that a suitable grounding connection is available.
• Verify that the voltage and frequency of the power supply
comply with the specifications and that the installed power
is sufficient to ensure the operation of any other domestic
appliance connected to the same electric lines.
• Always verify that the cut-off and protection switches are
suitably dimensioned.
• Verify that the air conditioner is connected to the power supply
in accordance with the instructions provided in the wiring
diagram included in the manual.
• Always verify that electric connections (cable entry, section
of leads, protections…) are compliant with the electric
specifications and with the instructions provided in the wiring
scheme. Always verify that all connections comply with the
standards applicable to the installation of air conditioners.
• Devices disconnected from the power supply should be
completely disconnected in the condition of overvoltage
category.
• 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 14 Optional:Extending the power
cable" in the installation manual.
CAUTION
Make sure thatyou 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 waterdripping from the drain hose
runs out properlyand safely.
Install the powercable and communication cable of the indoor
and outdoorunit at least1m away from the electric appliance.
Install the indoorunit 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 use the indoorunit forpreservation of food items, plants,
equipment, and art works. This may cause deterioration of their
quality.
Do not install the indoorunit if it has any drainage problem.
Safety Information

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Installation Procedure
Installation Procedure
Step1 Checking and preparing accessories
and tools
Accessories
Accessories in the indoorunit package
Installation plate (1) Remote control (1)
Remote control battery (2) UserManual (1)
Installation Manual (1) Remote Control Holder (1)
Tapped Screws M4 x16 (2)
Tools
General tools
• Vacuum pump
(Backward flowing
prevention)
• Manifold gauge
• Stud finder
• Torque wrench
• Pipe cutter
• Reamer
• Pipe bender
• Spirit level
• Screwdriver
• Spanner
• Drill
• L-wrench
• Measuring tape
Tools fortest operation
• Thermometer
• Resistance meter
• Electroscope
Step 2 Choosing the installation location
Installation location requirements
• There must be no obstacles near the air inlet and outlet.
• Install the indoor unit on a ceiling that can support its weight.
• Maintain sufficient clearance around the indoor unit.
• Before installing the indoor unit, be sure to check whether the
chosen location is well-drained.
WARNING
• Minimum installation height of indoor unit is 1.97 ft (0.6 m) for floor
mounted, 5.9 ft (1.8 m) forwall, 7.22 ft (2.2 m) for ceiling.
CAUTION
Do not install the airconditioner in following places.
• The 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.
• The place where animals may urinate on the product.
Ammonia may be generated.
• The place where is close to heat sources.

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Installation Procedure
Overview of installation location requirements
3.94 inch (100 mm) or
more (recommended)
4.92 inch (125
mm) or more
(recommended)
4.92 inch (125
mm) or more
(recommended)
Drain hose hole
You can select the direction of
draining (left or right).
Maximum pipe height: 26.25 ft (8 m)
Maximum pipe length: 49.21 ft (15 m)
Make a U-trap (A) on the pipe
(which is connected to the indoor
unit) at outer wall and cut the
bottom part of the insulation
[about 0.39 inch (10 mm)] to
prevent rainwater from getting
inside through the insulation.
Outdoor Unit
Outer wall
Indoor Unit
Cut insulation to have
rainwater drained
CAUTION
Step 3 Drilling a hole through the wall
Before fixing the installation plate to a wall and then fixing the
indoor unit to the installation plate, a window frame, or a gypsum
board, you must determine the position of a hole [with 2.56
inch (65 mm) inner diameter] through which the pipe bundle
(consisting of power and communication cables, refrigerant pipes,
and drain hose) will pass and then drill that hole.
1 Determine the position of a 2.56 inch (65 mm) hole in
consideration of the possible directions of the pipe bundle and
the minimum distances between the hole and the installation
plate.
<Possible directions of the pipe bundle>
Left Right
Bottom right
CAUTION
• If changing the pipe direction from left to right, do not
drastically bent it but slowly turn it in the opposite direction as
shown. Otherwise, the pipe may be damaged in the process.
AC
B
D
F E
Unit : inch (mm)
A B C D E F
6.14
(156)
2.64
(67)
14.33
(364)
1.36
(34.5)
2.54
(64.5)
0.77
(19.5)
Pipe bundle hole: Ø 2.56 inch (65 mm)
<Minimum distances between the hole and the
installation plate>
Pipe bundle hole
2 Drill the hole.
CAUTION
• Be sure to drill only one hole.
• Make sure that the hole slants downwards so that the drain
hose slants downwards to drain waterwell.
Wall
Drain hose
Indoor unit
<The hole slants downwards>
Installation Procedure

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Installation Procedure
Step 4 Fixing the installation plate
You can install the indoor unit on a wall, window frame, or gypsum
board.
WARNING
• Make sure that the wall, window frame, or gypsum board can
withstand the weight of the indoor unit. If you install the indoor
unit in a place where it is not strong enough to withstand the
unit's weight, the unit could fall and cause injury.
When fixing the indoorunit on a wall
Fix the installation plate to the wall giving attention to the weight
of the indoor unit.
AC
B
D
F E
Plastic anchor
0.79 inch (20 mm)
Unit : inch (mm)
A B C D E F
6.14
(156)
2.64
(67)
14.33
(364)
1.36
(34.5)
2.54
(64.5)
0.77
(19.5)
Pipe bundle hole: Ø 2.56 inch (65 mm)
NOTE
• If you mount the plate to a concrete wall using plastic anchors,
make sure that gaps between the wall and the plate, created
by projected anchor, is less than 0.79 inch (20 mm).
When fixing the indoorunit on a window frame
1 Determine the positions of the wooden uprights to be
attached to the window frame.
2 Attach the wooden uprights to the window frame giving
attention to the weight of the indoor unit.
3 Attach the installation plate to the wooden upright using
tapping screws.
When fixing the indoorunit on a gypsum board
1 Use stud finder to find out locations of the studs.
2 Fix the plate hanger on two studs.
CAUTION
• If you fix the indoor unit on a gypsum board, use only specified
anchor bolts on reference positions. Otherwise, the gypsum
surrounding the joints may crumble over time and cause
the screws to be loosened and stripped. This may lmead to
physical injury or equipment damage.
• Search for other spots if there are less than two studs, or
the distance between the studs are different from the plate
hanger.
• Fix the installation plate without inclining to one side.
Step 5 Purging the unit
Upon delivery, there may be inert gas inside the indoor unit. Purge
the gas from the indoor unit before connecting the assembly pipe.
• Unscrew the caps at the end of each pipe. All inert gas
exhausts from the indoor unit.
NOTE
• To prevent dirt or foreign substances from getting into the
pipes during installation, do NOT remove the caps completely
until you are ready to connect the pipes.

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Installation Procedure
Step 6 Cutting orflaring the pipes
1 Make sure that you prepared the required tools.
(pipe cutter, reamer, flaring tool and pipe holder)
2 If 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.
Pipe cutter
Pipe
90° Oblique Rough Burr
3 To prevent a gas leak, remove all burrs at the cut edge of the
pipe using a reamer.
4 Carry out flaring work using flaring tool as shown below.
Clutch type
A
Die
Copper pipe Flare nut Copper pipe
York
Die
Wing nut type
<Flaring tool>
(Unit: inch (mm))
Outer
diameter
A
Flare tool for
R-410A clutch
type
Conventional flare tool
Clutch type
Wing nut type
Ø1/4 (6.35) 0~0.02 (0~0.5) 0.04~0.06
(1.0~1.5)
0.06~0.08
(1.5~2.0)
Ø3/8 (9.52) 0~0.02 (0~0.5) 0.04~0.06
(1.0~1.5)
0.06~0.08
(1.5~2.0)
Ø1/2 (12.70 ) 0~0.02 (0~0.5) 0.04~0.06
(1.0~1.5)
0.06~0.08
(1.5~2.0)
Ø5/8 (15.88) 0~0.02 (0~0.5) 0.04~0.06
(1.0~1.5)
0.06~0.08
(1.5~2.0)
5 Check if you flared the pipe correctly. There are some
examples of incorrectly flared pipes below.
Inclined Damaged
Surface
Cracked Uneven
Thickness
6 Align the pipes and tighten the flare nuts first manually
and then with a torque wrench, applying the following
torque.
90° ± 2°
45° ± 2°
L
R 0.016 to 0.031 inch
(R 0.4 to 0.8 mm)
D
Outerdiameter,
D [inch (mm)
Connection Torque Flare dimension, L
[inch(mm)]
kgf•cm
[lbf•ft (N•m)]
Ø1/4 (6.35) 140~180 10.3 to 13.3
(14 to 18)
0.34 to 0.36
(8.7 to 9.1)
Ø3/8 (9.52) 350~430 25.1 to 31.0
(34 to 42)
0.50 to 0.52
(12.8 to 13.2)
Ø1/2 (12.70 ) 500~620 36.1 to 45.0
(49 to 61)
0.64 to 0.65
(16.2 to 16.6)
Ø5/8 (15.88) 690~830 50.2 to 60.5
(68 to 82)
0.76 to 0.78
(19.3 to 19.7)
Installation Procedure

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Installation Procedure
CAUTION
• In case of needing brazing, you must work with nitrogen gas
blowing.
Step 7 Connecting the refrigerant pipe
Connect indoor and outdoor units with field-supplied copper pipes
by means of flare connections. Use insulated seamless refrigeration
grade pipe only, (Cu DHP type according to ISO1337), degreased and
deoxidized, suitable for operating pressures of at least 4200 kPa and
for burst pressure of at least 20700 kPa. Under no circumstances
must sanitary type copper pipe be used.
There are 2 refrigerant pipes of different diameters:
•The smaller one is for the liquid refrigerant
•The larger one is for the gas refrigerant
A short pipe is already fitted to the air conditioner. You may need to
extend the pipe using the assembly pipe. (optional)
The connection procedure for the refrigerant pipe varies according
to the exit position of the pipe when facing the wall:
•Left(A)
•Right(B)
•Rear
Left (A) Right (B)
1 Cut out the appropriate knock-out piece on the rear of the
indoor unit unless you connect the pipe directly from the rear.
2 Smooth the cut edges.
3 Remove the protection caps of the pipes and connect the
assembly pipe to each pipe. Tighten the nuts first with your
hands, and then with a torque wrench, applying the following
torque:
Refrigerant oil
Torque
wrench
Spanner
UnionFlare nut
Outerdiameter
[inch (mm)]
Torque
[lbf•ft (N•m)]
Torque
(kgf•cm)
Ø 1/4 (6.35)
10.3 to 13.3 (14 to 18) 140~180
Ø 3/8 (9.52)
25.1 to 31.0 (34 to 42) 350~430
Ø 1/2 (12.70)
36.1 to 45.0 (49 to 61) 500~620
Ø 5/8 (15.88)
50.2 to 60.5 (68 to 82) 690~830
NOTE
•If you want to shorten or extend pipes, refer to Step 6
Cutting or flaring the pipes.
4 Cut off the remaining foam insulation.
5 If necessary, bend the pipe to fit along the bottom of the indoor
unit. Then pull it out through the appropriate hole.
•The pipe should not project from the rear of the indoor
unit.
•The bending radius should be 3.94 inch (100 mm) or
more.
6 Pass the pipe through the hole in the wall.
7 For further details on how to connect to the outdoor unit and
purge the air, refer to Step 4 Purging the unit.
NOTE
•The pipe will be insulated and fixed permanently into
position after finishing the installation and the gas leak test;
refer to page 10 for further details.
•DO NOTWALL UP THE PIPE CONNECTION!
All refrigerant pipe connection must be easy accessible and
serviceable.

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Installation Procedure
Step 8 Performing leak test
Leak test
LEAK TESTWITH NITROGEN (before opening valves)
In order to detect basic refrigerant leaks, before recreating the
vacuum and recirculating the R-410A, it’s responsible of installer
to pressurize the whole system with nitrogen (using a pressure
regulator) at a pressure above 4.1MPa (gauge).
LEAK TEST WITH R-410A (after opening valves)
Before opening valves, discharge all the nitrogen into the system
and create vacuum. After opening valves check leaks using a leak
detector for refrigerant R-410A.
Test parts for the
indoor unit
CAUTION
•Discharge all the nitrogen to create a vacuum and charge
the system.
Step 9 Wrapping the pipes with the
insulation
After checking for gas leaks in the system, insulate the pipe, hose
and cables. Then place the indoor unit on the installation plate.
1 To avoid condensation problems, place heat-resistant poly-
ethylene foam separately around each refrigerant pipe in the
lower part of the indoor unit.
2 Wrap the refrigerant pipe and the drain hose in the rear of the
indoor unit with the absorbent pad.
NOTE
•Wind the pipe and hose three times to the end of the indoor unit
with the absorbent pad. [0.79 inch (20 mm) interval]
3 Wind the pipe, assembly cable and drain hose with insulation
tape.
4 Place the bundle (the pipe, assembly cable and drain hose) in
the lower part of the indoor unit carefully so it doesn’t project
from the rear of the indoor unit.
Installation plate
5 Hook the indoor unit to the installation plate and move the unit
to the right and left until it is securely in place.
6 Wrap the rest of the pipe with vinyl tape.
7 Attach the pipe to the wall using clamps (optional).
Installation Procedure

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English
Installation Procedure
Step10 Installing and connecting the
drain hose
1 Install the drain hose.
Drain hose Assembly pipe Connection hose
Indoor unit
Drain hose
Wall
1.97inch(5 cm)less
Ditch
Slant downwards Slant upwards Dipped in water
Bent Too small clearance Too small
clearance
2 Pour water into the drain pan. Check whether the hose is well
drained.
CAUTION
• Make sure that the indoor unit is in upright position when you
pour water to check for leakage. Make sure that the water does
not overflow onto the electrical part.
• If the diameter of the connection hose is smaller than the
product's drain hose, water leakage may occur.
• Inadequate installation may cause water leakage.
• If the drain hose is routed inside the room, insulate the hose
so that dripping condensation does not damage the furniture
or floors.
• Do not box in or cover the drain hose connection.
Drain hose connection must be easily accessible and
serviceable.
Step11 Optional: Extending the drain hose
(A) (B)
Drain hose (A) Extension drain hose (B)
Drain hose Extension drain hose
0.79inch (20mm) or more
Foam insulation
Vinyl tape
1.57~1.97inch(40~45mm)

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Installation Procedure
Step12 Optional: Changing the direction
of the drain hose
Change the direction only when it is necessary.
1 Detach the rubber cap with the flyer.
Drain hose
Screw hole
Screw
2 Detach the drain hose by pulling it and turning to the left.
3 Insert the drain hose by fixing it into the groove of the drain
hose and the outlet of the drain pan.
Drain pan
outlet
Rubber cap
4 Attach the rubber cap with a screwdriver by turning it to the
right until it fixes to the end of the groove.
5 Check for leakage on both side of the drain outlet.
Pour the water in direction of arrow.
 Direction of the drained water
CAUTION
• Make sure that the indoor unit is in upright position when you
pour water to check for leakage. Make sure that the water does
not overflow onto the electrical part.
Step13 Connecting the power and
communication cables
CAUTION
•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.
•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
H05RN-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.
Installation Procedure

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Installation Procedure
1(L) 2(N)F1 F2
Indoor Unit
Cable
Tie
Main power cable Communication cable
Cable clamp
Indoor Power
Cable
clamp
Outdoor
Unit
1(L) 2(N) L N
F1 F2
Indoorpower supply
Powersupply Max/
Min(V) Indoor powercable
208 to 230V, 60Hz ±10% 0.0012inch²↑(0.75
mm² ↑),
3 wires
Communication cable
0.0012inch²↑(0.75
mm² ↑),2wires
0.45(11.4)
1(L) 2(N)F1 F2
0.40(10.1)
AC power, Communication : M4 screw Unit: inch (mm)
Tightening torque
N‧m lbf.ft
M3.5 0.8 to 1.2 0.59 to 0.89
M4 1.2 to 1.8 0.89 to 1.1
(1N‧m=10kgf‧cm)
•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)
•Since it has the external power supply, refer to the outdoor
unit installation manual for MAIN POWER.
CAUTION
•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.

14 English
Installation Procedure
Step14 Optional: Extending the power
cable
1 Prepare the following tools.
Tools Spec Shape
Crimping
pliers MH-14
Connection
sleeve
0.79xØ0.26inch
(20xØ6.5mm)
(HxOD)
Insulation
tape Width 0.75inch(19mm)
Contraction
tube
2.76xØ0.31 inch
(70xØ8.0mm)
(LxOD)
2 As shown in the figure, peel off the shields from the rubber
and wire of the power cable.
• Peel off 0.79 inch (20 mm)of cable shields from the pre-installed
tube.
0.79(20) 0.79(20) 0.79(20)
2.36(60)
4.72(120)
7.09(180)
7.09(180)
4.72(120)
2.36(60)
0.79(20) 0.79(20) 0.79(20)
Unit: inch(mm)
Power cable
Pre-installed tube for the
power cable
CAUTION
• For information about the power cable specifications for indoor
and outdoor units, refer to the installation manual.
• After peeling off cable wires from the pre-installed tube,
insert a contraction tube.
3 Insert both sides of core wire of the power cable into the
connection sleeve.
• Method 1: Push the core wire into the sleeve from both
sides.
• Method 2: Twist the wire cores together and push it into
the sleeve.
Method 1 Method 2
Connection sleeve
Connection sleeve
CAUTION
• If cable wires are connected without using connecting
sleeves, their contact area becomes reduced, or corrosion
develops on the outer surfaces of the wires (copperwires)
over a long time. This may cause an increase of resistance
(reduction of passing current) and consequently may
result in a fire.
4 Using a crimping tool, compress the two points and flip it over and
compress another two points in the same location.
• The compression dimension should be 0.31 inch (8.0 mm).
Compression
dimension
• After compressing it, pull both sides of the wire to make
sure it is firmly pressed.
Compress it 4 times
0.20 inch(5 mm)
Method 1 Method 2
Compress it 4 times
0.20 inch(5 mm)
5 Apply heat to the contraction tube to contract it.
Contraction tube
Method 1
Contraction tube
Method 2
Installation Procedure

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Installation Procedure
6 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.
1.57 inch (40 mm)
Insulation tape
Method 1
1.38 inch (35 mm)
Insulation tape
Method 2
7 After tube contraction work is completed, wrap it with the
insulation tape to finish.
Insulation tape
Method 1
Insulation tape
Method 2
CAUTION
• Make sure that the connection parts are not exposed to
outside.
• 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
• 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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Appendix
Detection of errors
 If an error occurs during the operation, an LED flickers and the operation is stopped except the LED.
 If you re-operate the air conditioner, it operates normally at first, then detect an error again.
LED Display on the receiver& display unit
LED Display
 If you turn off the air conditioner when the LED is flickering, the LED is also turned off.
 If you re-operate the air conditioner, it operates normally at first, then detect an error again.
 When E108 error occurs, change the address and reset the system.Ex.) When address of the indoor unit #1 and #2 are set as 5, address
of the indoor unit #1 will become 5 and indoor unit #2 will display E108, A002.
 On Flickering X Off
Abnormal condition Error code
LED Display
Error on indoor temperature sensor (Short or Open) E121
1. Error on Eva-in sensor (Short or Open)
2. Error on Eva-out sensor (Short or Open)
3. Discharge sensor error (Short or Open)
E122
E123
E126
Indoor fan error E154
1. Error on outdoor temperature sensor (Short or Open)
2. Error on cond sensor
3. Error on discharge sensor
Other outdoor unit sensor error that is not on the above list
E221
E237
E251
1.Whenthereisnocommunicationbetweentheindoor∙outdoorunitsfor2minutes
2. Communication error received from the outdoor unit
3. 3 miniute tracking error on outdoor unit
4. Communication error after tracking due to unmatching number of installed units
5. Error due to repeated communication address
6. Communication address not confirmed
Other outdoor unit communication error that is not on the above list
E101
E102
E202
E201
E108
E109
Self diagnosis error display
1. Error due to opened EEV (2nd detection)
2. Error due to closed EEV (2nd detection)
3. Eva in sensor is detached
4. Eva out sensor is detached
5. Thermal fuse error (Open)
E151
E152
E128
E129
E198

Troubleshooting

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Appendix
Abnormal condition Error code
LED Display
1. COND mid sensor is detached
2. Refrigerant leakage (2nd detection)
3. Abnomally high temperature on Cond (2nd detection)
4. Low pressure s/w (2nd detection)
5. Abnomally high temperature on discharged air on outdoor unit
(2nd detection)
6.
Indoor operation stop due to unconfirmed error on outdoor unit
7. Error due to reverse phase detection
8. Comp stop due to freeze detection (6th detection)
9. High pressure sensor is detached
10. Low pressure sensor is detached
11. Outdoor unit copression ration error
12. Outdoor sump down_1 prevetion control
13. Compressor down due to low pressure sensor prevention control_1
14. Simultaneous opening of cooling/heating MCU SOL valve
(1st detection)
15. Simultaneous opening of cooling/heating MCU SOL valve
(2nd detection)
16. External floating Switch error
Other outdoor unit self-diagnosis error that is not on the above list
E241
E554
E450
E451
E416
E559
E425
E403
E301
E306
E428
E413
E410
E180
E181
E665

EEPROM error E162