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features of your new
air conditioner
• Cool Summer Offer
On those hot sweltering summer days and long restless nights, there is no better escape
from the heat than the cool comforts of home. Your new air conditioner brings an end to
exhausting hot summer days and lets you rest. This summer, beat the heat with your own
air conditioner.
• Cost Efficient System
Your new air conditioner not only provides maximum cooling power in the summer, but can
also be an efficient heating method in the winter with the advanced “Heat pump” system.
This technology is up to 300% more efficient than electrical heating, so you can further
reduce its running cost. Now, meet year-round needs with one air conditioner.
• A Look for Everywhere
The elegant and harmonious design gives priority to the esthetics of your space and
complements any of your existing interior décor. With its soft color and rounded-edge shape,
the new air conditioner adds class to any room. Enjoy what your air conditioner offers both
functionally and esthetically.
• Compact and easy-to-use Cassette type
Designed to be installed into most types of suspended ceiling, the cassette type air
conditioner is ideal for business and commercial accommodations. Fresh cool/warm air
can be provided through the controllable 1, 2 or 4 sides of the unit. All functions of the air
conditioner will be controlled easily via a remote control.
For easy future reference write the model and serial number
down. You will find your model number on the right side of
the air conditioner.
Model #
Serial #
02_ features
safety information
To prevent electric shock, disconnect the power before servicing, cleaning, and installing the unit.
SAFETY INFORMATION
Before using your new air conditioner, please read this manual thoroughly to ensure that you know how to
safely and efficiently operate the extensive features and functions of your new appliance.
Because the following operating instructions cover various models, the characteristics of your air
conditioner may differ slightly from those described in this manual. If you have questions, call your nearest
contact center or find help and information online at www.samsung.com.
What the icons and signs in this user manual mean:
ENGLISH
WARNING
Risk of death or serious personal injury.
CAUTION
Potential risk of personal injury or material damage.
To reduce the risk of fire, explosion, electric shock, or personal injury when
CAUTION
These warning signs are here to prevent injury to you and others.
Please follow them carefully.
After reading this section, keep it in a safe place for future reference.
using your air conditioner, follow these basic safety instructions:
Do NOT attempt.
Do NOT disassemble.
Do NOT touch.
Follow directions carefully.
Unplug the power plug from the wall socket.
Make sure the machine is grounded to prevent electric shock.
Call the contact center for help.
Recommended instructions or useful information for use.
SEVERE WARNING SIGNS
WARNING
Do not place the air conditioner near hazardous substances or equipment that
releases free flames to avoid fire, explosions or injuries.
• Potential risk of fire hazard or explosion.
Do not block or place items in front of the air conditioner. Do not step, hang onto, or
place heavy items on the air conditioner.
• Potential risk of personal injury.
Do not install the outdoor unit at an unstable place or elevated surface where there is
potential risk of falling.
• If the outdoor unit falls, it may cause personal injury or loss or property.
Any changes or modifications performed not following by the installation manual,
failure or damage may occur on the condition. In this case, user will be responsible for
all the repair expenses.
safety information _03
safety information
SEVERE WARNING SIGNS
WARNING
If any gas or impurities other than R410A refrigerant come into the refrigerant pipe,
serious problem may occur and it may cause injury.
Do not spray flammable gases such as insecticide near the air conditioner.
• Potential risk of electric shock, fire or unit malfunction.
Do not insert anything such as fingers or branches into the air conditioner vents.
• Keep children away from the air conditioner. Potential risk of personal injury.
Do not cut the power plug and connect to a different power cable.
Never attempt to lengthen the power cable.
• Potential risk of fire or electric shock.
Do not yank the power cable and touch the power plug with hands.
• Potential risk of fire or electric shock.
Never use a damaged power plug, power cable, or loosened power receptacle.
• Potential risk of fire or electric shock.
The electric work must be done by qualified service technician in accordance with the
national wiring regulations with rated cables.
• If the capacity of the power cable is insufficient or electric work have not done properly, electric
shock or fire may occur.
You should connect the power cable into the power cable terminal and fasten it with a
clamp.
Do not connect the air conditioner with heating apparatus or attempt to disassemble,
remodel or repair it by yourself.
• Potential risk of malfunction, electric shock or fire. If repairs are needed, consult the contact center.
Consult the place of purchase or a contact center to disassemble or reinstall the air
conditioner.
• Potential risk of unit malfunction, water leakage, electric shock, or fire.
Consult the place of purchase or contact center to install the air conditioner.
• Improper installation carries a risk of unit malfunction, water leakage, electric shock or fire.
• If installing in specialty areas, such as a factory complex or saline coastal area, consult the place of
purchase or contact center for specific installation details.
Install the air conditioner with the support bracket securely fastened to use for an
extended period of time.
• If the air conditioner falls, it may cause personal injury or loss of property.
If the indoor unit gets wet, turn the power off immediately and call your nearest
contact center.
• Potential risk of fire or electric shock.
Install an exclusive circuit breaker and short-circuit breaker for the air conditioner.
• Potential risk of electric shock or fire.
If the power cable is damaged, the manufacturer or a qualified service technician
must replace it.
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.
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.
04_ safety information
The air conditioner must be installed in accordance with national wiring regulations
and safety regulations wherever applicable.
Install the supplied cables firmly. Fix them securely so that external force is not
exerted to the terminal block.
• If the connection is loose, heat may generate and cause electric shock or fire.
Use a rated circuit breaker only.
• Never use steel wires or copper wires as a circuit breaker. It may cause fire or unit malfunction.
Use an exclusive power source for the air conditioner.
• Potential risk of electric shock or fire.
Do not put undue stress or place heavy object on the power cable.
Do not bend the power cable excessively.
• Potential risk of fire or electric shock.
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.
Use a receptacle that has a ground terminal. The receptacle must be used exclusively
for the air conditioner.
• Improper electrical grounding may cause electric shock or fire.
Be sure to ground the unit. Do not connect the ground wire to gas or water pipes,
lighting rods, or telephone grounding lines.
• If the unit is not properly grounded, electric shock may result.
Always verify that a suitable grounding connection is available.
ENGLISH
Disconnect the air conditioner from power supply before it is repaired or
disassembled.
CAUTION SIGNS
CAUTION
Connect the refrigerant tubes first then the electrical lines, when installing the unit.
Always disassemble the electric lines before the refrigerant tubes.
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.
The manufacturer shall not be responsible for damage originating from unauthorized
changes or the improper connection of electric and hydraulic lines.
Failure to comply with these instructions or to comply with the requirements set
forth in the “Operating limits” table, included in the manual, and shall immediately
invalidate the warranty.
Ensure no water gets into the air conditioner.
• Potential risk or electric shock.
Turn off the air conditioner using the provided remote control or control accessory
(if provided). Do not unplug to turn off the unit (unless there is an immediate danger).
Do not open the front grille during operation.
• Potential risk of electric shock or unit malfunction.
Cool air should not flow directly towards people, pets, and plants.
• It is harmful to your health, pets, and plants.
Do not run the air conditioner for an extended period of time in a room with the door
closed or with babies, elderly or disabled people.
• Open the door or windows to ventilate your room at least once an hour to prevent oxygen shortage.
Do not drink drain water coming out of the air conditioner.
• Potential risk of health hazard.
safety information _05
safety information
CAUTION SIGNS
CAUTION
Do not expose the dust filter to direct sunlight while drying.
• Strong direct sunlight may deform the dust filter.
Do not allow children to climb on the air conditioner.
Use only rated accessories and install the air conditioner with rated equipments.
• If you do not use the rated accessories, the air conditioner may drop from its place, water may leak
or electric shock or fire may occur.
Do not use the air conditioner as a cooling precision instrument for food, pets, plants,
cosmetics or machinery.
Do not give excessive shock to the air conditioner.
• Potential risk of fire or unit malfunction.
Do not spray water directly on the air conditioner or use benzene, thinner or alcohol to
clean the surface of the unit.
• Potential risk of electric shock or fire.
• Potential risk of damage to the air conditioner.
Do not place any objects, especially containers with liquid.
Do not touch the pipe connected to the air conditioner.
This appliance should be installed according to the provided installation manual.
Install the shortest possible length of pipe.
• If the length of pipe gets unnecessarily long, the life of air conditioner can be shorten and become
inefficient.
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.
For maximum safety, installers should always carefully read the following warnings.
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 of flammable dust.
• The place where thinner or gasoline is handled Gas may leak and it may cause fire.
If the air conditioner is installed in a small room, measures must be taken to prevent
the refrigerant concentration in the room from exceeding the safety limit in the event
of refrigerant leakage.
Consult a dealer regarding the appropriate measures to prevent the allowable
concentration from being exceeded.
• If the refrigerant leaks, and cause the concentration limit to be exceeded, hazards due to lack of
oxygen in the room may result.
Install the air conditioner away from direct exposure to sunlight, heating apparatus,
and humid places.
• Hang curtains on windows to boost cooling efficiency and to avoid the risk of electric shock.
The air conditioner is composed of moving parts. Keep children away from the unit to
avoid physical injury.
06_ safety information
Check for damage on delivery. If damaged, do not install the air conditioner and call
the place of purchase immediately.
Insert the dust filter before operating the air conditioner.
• If there is no dust filter inside the air conditioner, accumulated dust may shorten the life of the air
conditioner and cause electricity waste.
Keep indoor temperatures stable and not extremely cold, especially where there are
children, elderly or disabled people.
Clean the dust filter every 2 weeks. Clean the filter more frequently if the air
conditioner is operated in dusty areas.
The packaging material and used batteries of the remote controller (optional) must be
disposed of in accordance with the national standards.
The refrigerant used in the air conditioner must be treated as chemical waste. Dispose
the refrigerant following national standards.
Have a qualified service technician install the air conditioner and perform a trial
operation.
Firmly connect the drain hose to the air conditioner for proper water drainage.
Install the outdoor unit where operating noise and vibration will not disturb your
neighbor and in a well-ventilated area with no obstacle.
• Potential risk of malfunction.
• Operating noise may disturb your neighbor.
Make sure that children take precautions against access to the air conditioner and
they do not play with the unit.
When using a wireless remote control, the distance should not be more than 7 meters
from the air conditioner.
If the remote control is not used for a long period of time, remove the batteries to
prevent leakage of electrolyte.
When cleaning the outdoor unit, touch the heat exchanger radiator fins with extreme
care.
• Wearing thick gloves can protect your hands.
Make sure that the condensed water dripping from the drain hose runs out properly
and safely.
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.
All the materials used for the manufacture and packaging of the air conditioner are
recyclable.
After completing the installation, always carry out a functional test and provide the
instructions on how to operate the air conditioner to the user.
The appliance is not intended for use by young children or infirm persons without
supervision: Young children should be supervised to ensure that they do not play with
the appliance.
Clean the air conditioner after the inner fan stops operating.
• Potential risk of injury or electric shock.
Inspect the condition, electric connections, pipes and external case of the air
conditioner regularly by a qualified service technician.
Do not open doors and windows in the room being cooled during operation unless
necessary.
Do not block the air conditioner vents. If objects block the air flow, it may cause unit
malfunction or poor performance.
Make sure there are no obstacles under the indoor unit.
• Potential risk of fire or loss of property.
Make sure that there are no obstacles or covers that block the air conditioner.
Allow sufficient space for air circulation.
• Insufficient ventilation may result in poor performance.
ENGLISH
safety information _07
safety information
CAUTION SIGNS
CAUTION
Make sure the voltage and frequency of the electric system are compatible with the
air conditioner.
If a power outage occurs while the air conditioner is working, turn off the power
source immediately.
Max current is measured according to IEC standard for safety and current is
measured according to ISO standard for energy efficiency.
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.
After connecting the power cable between the indoor/outdoor unit, attach the cover
of component box securely and make sure it is not loose.
For the power cable, use the grade of H07RN-F or H05RN-F materials.
The unbalanced power must be maintained within 10% of supply rating among whole
indoor units.
If the power is unbalanced greatly, it may shorten the life of the condenser.
If the unbalanced power is exceeded over 10% of supply rating, the indoor unit is
protected, stopped and the error mode indicates.
To protect the product from water and possible shock, you should keep the power
cable and the connection cord of the indoor and outdoor units in the protection tube.
Connect the power cable to the auxiliary circuit breaker.
You must keep the cable in a protection tube.
Keep distances of 50mm or more between power cable and communication cable.
Maximum length of power cable is decided within 10% of power drop. If it exceeds,
you must consider another power supplying method.
The circuit breaker (MCCB, ELB) should be considered more capacity, if many indoor
units are connected from one breaker.
Use solderless ring terminal to connect the power cable to the power terminal block.
Use an appropriate screwdriver for tightening the terminal screws.
Over-tightening the terminal screws may break them.
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.
Our units must be installed in compliance with the spaces indicated in the installation
manual to ensure either accessibility from both sides or ability to perform routine
maintenance and repairs. The units’ components must be accessible and that can
be disassembled in conditions of complete safety either for people or things. For this
reason, where it is not observed as indicated into the Installation Manual, the cost
necessary to reach and repair the unit (in safety, as required by current regulations
in force) with slings, trucks, scaffolding or any other means of elevation won’t be
considered in-warranty and charged to end user.
Ensure the off-on and protection switches are properly installed.
Do not use the air conditioner if damaged. If problems occur, immediately stop
operation and disconnect the plug from the power supply.
If the air conditioner will not be used for an extended period of time (for example, over
several months), unplug the power from the wall.
Call the place of purchase or a contact center if repairs are needed.
• Potential risk of fire or electric shock if disassembly or repairs are attempted by a non-qualified
service technician.
If you smell burning plastic, hear strange sounds, or see smoke coming from the unit,
unplug the air conditioner immediately and call a contact center.
• Potential risk of fire or electric shock.
08_ safety information
contents
VIEWING THE PARTS
10
USING YOUR AIR CONDITIONER
11
CLEANING AND MAINTAINING
THE AIR CONDITIONER
12
APPENDIX
16
INSTALLATION PART
18
10 Main parts
10 Indicator
ENGLISH
11 Tips on using your air conditioner
12 Cleaning the exterior
13 Cleaning air filter and grille
14 Maintaining your air conditioner
14 Periodical checks
15 Internal protections via the unit control
system
16 Troubleshooting
17 Operation ranges
18 Indoor Unit Installation
18 Performing Leak Test & Insulation
19 Drain pipe and Drain Hose Installation
20 Wiring Work
21 Setting an indoor unit address and
installation option
This product has been determined to be in compliance with the Low Voltage Directive (2006/95/EC), and the
Electromagnetic Compatibility Directive (2004/108/EEC) of the European Union.
Correct Disposal of This Product
(Waste Electrical & Electronic Equipment)
(Applicable in the European Union and other European countries with separate collection systems)
This marking shown on the product or its literature, indicates that it should not be disposed with other household wastes
at the end of its working life. To prevent possible harm to the environment or human health from uncontrolled waste
disposal, please separate this from other types of wastes and recycle it responsibly to promote the sustainable reuse of
material resources.
Household users should contact either the retailer where they purchased this product, or their local government office,
for details of where and how they can take this item for environmentally safe recycling.
Business users should contact their supplier and check the terms and conditions of the purchase contract.
This product should not be mixed with other commercial wastes for disposal.
contents _09
viewing the parts
MAIN PARTS
INDICATOR
Air flow blade
Air intake
Air filter (under the grille)
Display
Remote control sensor
Filter reset indicator
Timer indicator
Removing frost indicator
On/Off operation indicator
Your air conditioner and display may look slightly different from the illustration shown above
depending on your model.
10_ viewing the parts
using your air conditioner
TIPS ON USING AIR CONDITIONER
Here are some tips that you would follow when using your air conditioner.
TOPICRECOMMENDATION
Cooling• If current outside temperatures are much higher than the selected indoor
temperature, it may take time to bring the inner temperature to the desired
coolness.
• Avoid drastically turning down the temperature. Energy is wasted and the
room does not cool faster.
Heating• Since the air conditioner heats the room by taking heat energy
from outdoor air, the heating capacity may decrease when outdoor
temperatures are extremely low. If you feel the air conditioner insufficiently
heats, using an additional heating appliance in combination with the air
conditioner is recommended.
Frost & De-ice• When the air conditioner runs in Heat mode, due to temperature difference
between the unit and the outside air, frost will form.
If this happens:
- The air conditioner stops heating.
- The air conditioner will operate automatically in De-ice mode for
10 minutes.
- The steam produced on the outdoor unit in De-ice mode is safe.
No intervention is required; after about 10 minutes, the air conditioner
operates again normally.
The unit will not operate when it starts to de-ice.
Fan• Fan may not operate for about 3~5 minutes at the beginning to prevent
any cold blasts while the air conditioner is warming up.
ENGLISH
High indoor/outdoor
temperatures
Power failure• If a power failure occurs during the operation of the air conditioner, the
Protection mechanism• If the air conditioner has just been turned on after operation stops or being
• If both indoor and outdoor temperatures are high and the air conditioner is
running in Heat mode, the outdoor unit’s fan and compressor may stop at
times. This is normal; wait until the air conditioner turns on again.
operating immediately stops and unit will be off. When power returns, the
air conditioner will run automatically.
plugged in, cool/warm air does not come out for 3 minutes to protect the
compressor of the outdoor unit.
using your air conditioner _11
cleaning and maintaining the
air conditioner
CLEANING THE EXTERIOR
Wipe the surface of the unit with a slightly wet or dry cloth when needed.
Wipe off dirt of odd-shaped area by using a soft brush.
Do not use Benzene or Thinner.
They may damage the surface of the air conditioner and can create a risk of fire.
CAUTION
12_ cleaning and maintaining the air conditioner
CLEANING AIR FILTER AND GRILLE
Open the front grille.
Open the blades on the left and right side of the
Samsung logo. Press both of the levers and pull the
grille downward. Two safety clips are mounted to the
front grille to prevent it from dropping.
Clean the grille and Air filter with a vacuum cleaner
or soft brush. If dust is too heavy, then rinse it with
running water and dry it in a ventilated area.
For best conditions, repeat every two weeks.
If the Air filter dries in a confined (or humid) area,
odors may generate. If it occurs, re-clean and dry it in
a well-ventilated area.
Detach the front grille.
Remove the safety clip first and then remove the
hinge. Pull the green switch on the hinge part
down and then press and pull the hinge part to
remove the grillae. (There are two hinges on the
grille and you must apply this step on both of
them to remove the grille.)
❈ If you want to clean the filter only, you do not have
to detach the grille. Follow step 4 and 5
Pull out the Air filter.
ENGLISH
Insert the Air filter back in its original position.
You will hear a click sound when the Air filter is
properly placed.
• The illustration shown above may differ from yours depending on your model.
• After cleaning the filter, press the Filter Reset button on the remote control for 2 seconds
to reset the filter schedule. Filter sign indicator will be on for cleaning time.
• If the angle on the air flow blades has been changed by user due to opening the front
grille for installation or maintenance, you must turn off the circuit breaker and turn it
on again before using the air conditioner. Otherwise, angles of the each angle can be
different or some of the blade may not close when the product is off.
Attach the front grille.
Reverse the above steps to attach the front grille.
cleaning and maintaining _13
cleaning and maintaining the
air conditioner
MAINTAINING YOUR AIR CONDITIONER
If the air conditioner will not be used for an extended period of time, dry the air conditioner to maintain it in
best condition.
1. Dry the air conditioner thoroughly by operating in Fan mode for 3 to 4 hours and disconnect
the power plug. There may be internal damage if moisture is left in components.
2. Before using the air conditioner again, dry the inner components of the air conditioner again
by running in Fan mode for 3 to 4 hours. This helps remove odors which may have generated
from dampness.
Periodical checks
Refer to the following chart to maintain the air conditioner properly.
TypeDescriptionMonthly
Clean the air filter (1)
Clean the condensate drain pan (2)
Indoor unit
Outdoor unit
Thoroughly clean the heat exchanger (2)
Clean the condensate drain pipe (2)
Replace the remote control batteries (1)
Clean the heat exchanger on the outside of
the unit (2)
Clean the heat exchanger on the inside of
the unit (2)
Clean the electric components with jets of
air (2)
Verify that all the electric components are
firmly tightened (2)
Clean the fan (2)
Verify that all the fan assembly is firmly
tightened (2)
Clean the condensate drain pan (2)
Every 4
months
Once a
year
The checks and maintenance operations described are essential to guarantee the
efficiency of the air conditioner. The frequency of these operations varies according to the
characteristics of the area, the amount of dust, etc.
(1) The described operations should be performed more frequently if the area of installation
is very dusty.
(2) These operations must always be performed by qualified personnel. For more detailed
information, see the Installation Manual.
14_ cleaning and maintaining
Internal protections via the unit control system
This internal protection operates if an internal fault occurs in the air conditioner.
TypeDescription
Against cold air
De-ice cycle
Anti-protection of
internal battery
Protect compressor
If the heat pump is operating in Heat mode, De-ice cycle is actuated to remove frost from
an outdoor unit that may have deposited at low temperatures.
The internal fan is switched off automatically and restarted only after the de-ice cycle is
completed.
The internal fan will be off to against cold air when the heat pump is
heating.
The internal fan will be off to against cold air when the heat pump is
heating.
The compressor will be off to protect internal battery when the air
conditioner operates in Cool mode.
The air conditioner does not start operating immediately to protect the
compressor of the outdoor unit after it has been started.
ENGLISH
cleaning and maintaining _15
appendix
TROUBLESHOOTING
Refer to the following chart if the air conditioner operates abnormally. This may save time and unnecessary
expenses.
PROBLEMSOLUTION
The air conditioner does not
operate immediately after it
has been restarted.
The air conditioner does not
work at all.
The temperature does not
change.
The cool (warm) air does
not come out of the air
conditioner.
The fan speed does not
change.
• Because of the protective mechanism, the appliance does not start operating
immediately to keep the unit from overloading.
The air conditioner will start in 3 minutes.
• Check that the power plug is properly connected. Insert the power plug into the
wall socket correctly.
• Check if the circuit breaker is switched off.
• Check if there is a power failure.
• Check your fuse. Make sure it is not blown out.
• Check if you selected Fan mode. Press the Mode button on the remote control to select another mode.
• Check if the set temperature is higher (lower) than the current temperature. Press
the Temperature button on the remote control to change the set temperature.
Press the Temperature button to decrease or increase the temperature.
• Check if the air filter is blocked by dirt. Clean the air filter every two weeks.
• Check if the air conditioner has just been turned on. If so, wait 3 minutes. Cool air
does not come out to protect the compressor of the outdoor unit.
• Check if the air conditioner is installed in a place with a direct exposure to sunlight.
Hang curtains on windows to boost cooling efficiency.
• Check if the cover or any obstacle is not near the outdoor unit.
• Check if the refrigerant pipe is too long.
• Check if the air conditioner is only available in Cool mode.
• Check if the remote control is only available for cooling model.
• Check if you selected Auto or Dry mode.
The air conditioner automatically adjusts the fan speed to Auto in Auto/Dry mode.
Timer function does not set. • Check if you press the Power button on the remote control after you have set the time.
Odors permeate in the room
during operation.
The air conditioner makes a
bubbling sound.
Water is dripping from the
air flow blades.
Remote control is not
working.
The air conditioner does not
turn on or off with the wired
remote control.
The wired remote control
does not operate.
The indicators of the digital
display flashes.
• Check if the appliance is running in a smoky area or if there is a smell entering from
outside. Operate the air conditioner in Fan mode or open the windows to air out the
room.
• A bubbling sound may be heard when the refrigerant is circulating through the
compressor. Let the air conditioner operate in a selected mode.
• When you press the Power button on the remote control, noise may be heard from
the drain pump inside the air conditioner.
• Check if the air conditioner has been cooling for an extended period of time with
the air flow blades pointed downwards. Condensation may generate due to the
difference in temperature.
• Check if your batteries are depleted.
• Make sure batteries are correctly installed.
• Make sure nothing is blocking your remote control sensor.
• Check that there are strong lighting apparatus near the air conditioner. Strong light
which comes from fluorescent bulbs or neon signs may interrupt the electric waves.
• Check if you set the wired remote control for group control.
• Check if TEST indicator is displayed on the wired remote control. If so, turn off the
unit and switch off the circuit breaker. Call your nearest contact center.
• Press the Power button on the remote control to turn the unit off and switch the
circuit breaker off. Then, switch it on again.
16_ appendix
OPERATION RANGES
The table below indicates the temperature and humidity ranges the air conditioner can be operated within.
Refer to the table for efficient use.
MODE
COOLING
HEATING
DRYING
The standardized temperature for heating is 7˚C/45˚F. If the outdoor temperature drops to 0˚C/32˚F or
below, the heating capacity can be reduced depending on the temperature condition.
If the cooling operation is used at over 32˚C/90˚F (indoor temperature), it does not cool at its full
capacity.
OUTDOOR
TEMPERATURE
-5°C/23°F to 43°C/109°F18°C/64°F to 32°C/90°F80% or less-
-20°C/-4°F to 24°C/75°F27°C/81°F or less--
-5°C/23°F to 43°C/109°F18°C/64°F to 32°C/90°F--
INDOOR
TEMPERATURE
INDOOR HUMIDITYREMARKS
ENGLISH
appendix _17
Installation Part
Indoor Unit Installation
When deciding on the location of the air conditioner with the
owner, the following restrictions must be taken into account.
Determine the position of the pipe and drain hose hole as
1.
seen in the picture and drill the hole with an inner diameter
of 65mm so that it slants slightly downwards.
Note
Insert bolt anchors, use existing ceiling supports or
2.
construct a suitable support as shown in figure.
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.
Concrete
Hang the indoor unit to the suspension bolts between two
5.
nuts.
Note
Screw the nuts to suspend the unit. Cut a pad stopper and
6.
place it on the bracket at this time.
Adjust the unit to the appropriate position considering the
7.
installation area for the front panel.
1) Place the pattern sheet on the indoor unit.
2) Adjust a space between the ceiling and the indoor unit
by using the gauge of dimensions.
3) Fix the indoor unit securely after adjusting level of the
unit by using a leveler.
4) Remove the pattern sheet, connect the other cables and
install the front panel.
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.
Pad stopper
Bracket
Indoor unit
20mm
Insert
Hole in anchor
Hole in plug
Suspension bolt(3/8" or M10)
Install the suspension bolts depending on the ceiling type.
3.
CAUTION
Screw eight nuts to the suspension bolts making space for
4.
hanging the indoor unit.
You must install all the suspension rods. It is important to leave sufficient space in the
CAUTION
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.
Ceiling support
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.
17mm
Gauge of Dimensions
Ceiling
Performing Leak Test & Insulation
Leak test
LEAK TEST WITH NITROGEN(before opening valves)
In order to detect basic refrigerant leaks, before recreating the
vacuum and recirculating the R410A, 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 R410A(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 R410A.
Liquid refrigerant
port
g The designs and shape are subject
to change according to the model.
Gas refrigerant port
18_ installing your air conditioner
Discharge all the nitrogen to create a vacuum and
charge the system.
Insulation
Once you have checked that there are no leaks in the system,
you can insulate the piping and hose.
To avoid condensation problems, place T13.0 or thicker
1.
Acrylonitrile Butadien Rubber separately around each
refrigerant pipe.
Note
Wind insulating tape around the pipes and drain hose
2.
avoiding to compress the insulation too much.
Always make the seam of pipes face upwards.
No gap
NBR(T13.0 or thicker)
Insulation cover pipe
Insulation pipe
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.
a× 3
Hanger
Refrigerant pipe insulation
a
Additional insulation
Drain pipe and Drain Hose Installation
ENGLISH
Indoor unit
Must fit tightly against
body without any gap.
Be sure to overlap
the insulation
Finish wrapping insulating tape around the rest of the
3.
pipes leading to the outdoor unit.
The pipes and electrical cables connecting the indoor unit
4.
with the outdoor unit must be fixed to the wall with
suitable ducts.
All refrigerant connection must be accessible, in order
to permit either unit maintenance or removing it
completely.
Select the insulation of the refrigerant pipe.
5.
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 temperature of 27°C and humidity of 80%.
If installing in an unfavorable conditions, use thicker one.
Insulator’s heat-resistance temperature should be more
than 120°C.
Insulation Type (Heating/Cooling)
PipePipe size
Ø6.35~Ø9.529t
Liquid
pipe
Ø12.7~Ø50.8013t
Ø6.3513t 19t
Ø9.52
Ø12.70
Ø15.88
Ø19.05
Ø22.23
Gas
pipe
Ø25.40
Ø28.58
Ø31.75
Ø38.10
Ø44.45
Ø50.8025t 38t
Standard
[30°C, 85%]
19t
High humidity
[30°C, over 85%]
EPDM,NBR
25t
32t
Remarks
Internal tem-
perature is
higher than
120°C
Install the drain pipe as shortly as possible.
1.
Give a slightly slant to the drainpipe for proper drainage
of condensate water.
There must be no gap on the connected part so that the
drainpipe is not separated from the flexible hose.
Insulate the drainpipe, and then fix it as indicated.
2.
Whole drainpipe should be insulated by 5t(or more)
insulation to prevent water condensation.
Metal clamp
Drain socket
Drain hose
Large sealing pad
g Flexible hose Installation
Be horizontal
Indoor
Unit
Flexible hose
Install horizontally
Indoor
Unit
Max. allowable bending
angle
A-A’
Drain piping
Max. 30˚
Tighten the clamp to the
maximum until you can
see eight holes.
Indoor
Unit
Max. 20mm
Max. allowable axis gap
installing your air conditioner _19
Drainpipe Connection
The drain pipe should be installed within 100mm from the
1.
flexible hose, lift up from 100mm to 550mm and lift down
20mm or more.
Install horizontal drainpipe with a slope of 1/100 or more
2.
and fix it by hanger space of 1~1.5m.
Outdoor Unit
Wired Remote
Control
220-240V~
Install the air vent in the horizontal drainpipe to prevent
3.
water flow back to the indoor unit.
Note
You may not need to install it if there were proper
slope in the horizontal drainpipe.
The flexible hose should not be installed upward position,
4.
it may cause water flow back to the indoor unit.
Install U-trap at the end of the drainpipe to prevent a nasty
5.
smell to reach the indoor unit.
Air vent
300mm or less
Flexible hose
100mm
or more
100~550mm
or more
1~1.5m
Hanger
Horizontal drainpipe
more than 1/100 slope
Ceiling
Centralized Drainage
Install main air vent at the front of the farthest indoor unit from
1.
the main drain when installed indoor units are more than 3.
You may need to install individual air vent to prevent water
2.
flow back at the top of each indoor unit drainpipe.
Hanger
Main drainpipe
Individual
air vent
1~1.5m
Centralized horizontal drainpipe
(more than 1/100 slope)
Main air vent
550mm or less
Indoor Unit 1
ELB : Essential Installation
h
Indoor Unit 2Indoor Unit 3
Using the correct tools, connect the cables to the terminal
board securely within the range of rated torque, so the cable
is firm and cannot be moved by external force or pressure.
Make sure the cables are placed in the correct position so
that they can be covered firmly, without the cover lifting off,
or touching other parts.
If the terminal is loose, then overheating, electric shock or
fire may occur.
Tightening Torque (kgf • cm)
M35~6
M3.5
M4
8~10
12~14.7
Selecting compressed ring terminal
Silver solder
Norminal
Norminal
dimensions
dimensions
for cable
for screw
2
(mm
(mm)
)
1.5
2.5
449.5±0.25.6
BDd1EFLd2t
Allowance
(mm)
±0.23.4
±0.24.2
Standard
dimension
(mm)
Standard
dimension
(mm)
46.6
48
46.6
48.5
Standard
Allowance
(mm)
+0.3
-0.2
+0.3
-0.2
+0.3
-0.2
Allowance
dimension
(mm)
(mm)
1.7±0.2 4.1 6 16 4.3
2.3±0.2 6 6 17.5 4.3
3.4±0.2 6 5 20 4.3
Min. Min. Max.
Standard
dimension
(mm)
Allowance
(mm)
+0.2
0
+0.2
0
+0.2
0
Min.
0.7
0.8
0.9
Wiring Work
Power and communication cable connection
Before wiring work, you must turn off all power source.
1.
Indoor unit power should be supplied through the
2.
breaker(MCCB, ELB) separated by the outdoor power.
The power cable should be used only copper wires.
3.
Connect the power cable{1(L), 2(N)} among the units within
4.
maximum length and communication cable(F1, F2) each.
Connect V1, V2(for DC12V) and F3, F4(for communication)
5.
when installing the wired remote Control.
20_ installing your air conditioner
Specification of electronic wire
Power supply MCCBELB
Max : 242V
Min : 198V
X A
X A, 30mmA
0.1 sec
Power
2.5mm
Decide the capacity of ELB and MCCB by below formula.
The capacity of ELB, MCCB X [A] = 1.25 X 1.1 X ∑ Ai
T X
: The capacity of ELB, MCCB
T ∑Ai : Sum of Rating currents of each indoor unit.
T
Refer to each installation manual about the rating current of indoor unit.
Decide the power cable specification and maximum length
within 10% power drop among indoor units.
n
k=1
∑ (
Coef×35.6×L
1000×A
k×ik
k
T Coef: 1.55
k: Distance among each indoor unit[m],
T L
A
k: Power cable specification[mm
2
], ik : Running current of each unit[A]
Earth
cable
cable
2
2.5mm20.75~1.5mm
10% of input
) <
voltage[V]
Communication
cable
2
Setting an indoor unit address and installation option
Set the indoor unit address and installation option with remote controller option.
Set the each option separately since you cannot set the ADDRESS setting and indoor unit installation setting option at the same
time. You need to set twice when setting indoor unit address and installation option.
The procedure of option setting
Entering mode for
option setting
High Temp Button
Low Temp Button
Step 1. Entering mode to set option
1. Remove batteries from the remote controller.
2. Insert batteries and enter the option setting mode while pressing High Temp button and Low Temp button.
Option setting mode
Mode change
High Fan Button
Low Fan Button
ENGLISH
3. Check if you have entered the option setting status.
Step 2. The procedure of option setting
After entering the option setting status, select the option as listed below.
Option setting is available from SEG1 to SEG 24
SEG1, SEG7, SEG13, SEG19 are not set as page option.
Set the SEG2~SEG6, SEG8~SEG12 as ON status and SEG14~18, SEG20~24 as OFF status.
When “A”~”F” is entered to SEG5~6, the indoor unit MAIN ADDRESS is not changed.
If you set the SEG 3 as 0, the indoor unit will maintain the previous MAIN ADDRESS even if you input the option value of SEG5~6.
If you set the SEG 9 as 0, the indoor unit will maintain previous RMC ADDRESS even if you input the option value of SEG11~12.
1
address
RMC
address
1
setting
mode
RMC10~2RMC20~F
24_ installing your air conditioner
Setting an indoor unit installation option (suitable for the condition of each installation location)
Check whether power is supplied or not.
1.
- When the indoor unit is not plugged in, there should be additional power
supply in the indoor unit.
The panel(display) should be connected to an indoor unit to receive option.
2.
Set the installation option according to the installation condition of an air
3.
conditioner.
- The default setting of an indoor unit installation option is
“02000-100000- 200000-300000”.
- Individual control of a remote controller(SEG20) is the function that controls an
indoor unit individually when there is more than one indoor unit.
Set the indoor unit option by wireless remote controller.
4.
SEG1SEG2SEG3SEG4SEG5SEG6
02Robot cleaning
SEG7SEG8SEG9SEG10SEG11SEG12
1Drain pumpHot water heaterElectronic heater
SEG13SEG14SEG15SEG16SEG17SEG18
2External controlExternal control output S-Plasma ionBuzzer
SEG19SEG20SEG21SEG22SEG23SEG24
Exterior temperature
sensor
Central controlFAN RPM compensation
Opening the electronic
expansion valve
Indoor Unit
1(L)
2(N)
Master / Slave
Number of hours using
F2
F1
lter
ENGLISH
3
1WAY/2WAY/4WAY MODEL : Drain pump(SEG8) will be set to ‘USE + 3minute delay’ even if the drain pump is set to 0.
1 WAY/2WAY/4WAY,DUCT MODEL : Number of hours using filter(SEG18) will be set to ‘1000hour’ even if the SEG18 is set to
If you input a number other than 0~4 of the individual control of the indoor unit(SEG20), the indoor is set as “indoor 1”.
Individual control of a
remote controller
Heating setting
compensation
exept for 2 or 6.
EEV opening of an
indoor unit stopped
during oil return or
Defrost operation.
- Human sensor
installing your air conditioner _25
Setting an indoor unit address and installation option
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