Samsung AR18MRFHCWKNMG Manual
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AR18MRFHCWKNMG
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QUESTIONS OR COMMENTS?
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Air conditioner
User manual/Installation manual
AR KRFH KQFH MRFH MQFH, AR , AR , AR
•Thank you for purchasing this Samsung air conditioner.
•Before operating this unit, please read this installation manual carefully and retain it for future
reference.
DB68-06045A-02

2
English
Contents
Safety Information 4
Safety Information 4
At a Glance 8
Indoor Unit Overview 8
Display
Remote Control Overview 9
Inserting batteries
Remote Control Operation 10
Operation modes • Controlling temperature •
Controlling fan speed • Controlling air flow direction
Power Smart Features 12
Cooling Operation 12
Cool mode • 2-Step cooling function
Dehumidifying Operation 13
Dry mode
Heating Opeeration 14
Heat mode
Quick Smart Features 15
Auto mode • Fan mode • Fast function • Comfort function •
Beep sound function
Energy-Saving Features 18
Energy-Saving Operation 18
Single user function • Timed on/Timed off function • good’sleep function
Cleaning and Maintenance 21
Cleaning at a Glance 21
Troubleshooting 23
Technical Specifications 25
Installation 30
Safety Information on Installation 30
Preparation 32
Step 1.1 Choosing the installation location
Step 1.2 Packing and Unpacking
Step 1.3 Checking and preparing accessories and tools
Step 1.4 Drilling a hole through the wall
Step 1.5 Taping the pipes, cables, and drain hose

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English
Indoor Unit Installation 37
Step 2.1 Connecting the cables (assembly cable)
Step 2.2 Optional: Extending the power cable
Step 2.3 Installing and connecting the drain hose
Step 2.4 Optional: Extending the drain hose
Step 2.5 Optional: Changing the direction of the drain hose
Step 2.6 Installing and connecting the assembly pipes to the refrigerant pipes (assembly pipe)
Step 2.7 Shortening or extending the refrigerant pipes (assembly pipe)
Step 2.8 Fixing the installation plate
Outdoor Unit Installation 44
Step 3.1 Fixing the outdoor unit in place
Step 3.2 Connecting the cables and the refrigerant pipes
Step 3.3 Evacuating the air
Step 3.4 Adding refrigerant
Installation Inspection 47
Step 4.1 Performing the gas leak tests
Step 4.2 Running the Smart Install mode
Step 4.3 Performing final check and trial operation
Correct Disposal of This Product
(Waste Electrical & Electronic Equipment)
(Applicable in countries with separate collection systems)
This marking on the product, accessories or literature indicates that the product and its electronic
accessories (e.g. charger, headset, USB cable) should not be disposed of with other household waste at the
end of their working life. To prevent possible harm to the environment or human health from uncontrolled
waste disposal, please separate these items from other types of waste and recycle them 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 these items for environmentally safe recycling.
Business users should contact their supplier and check the terms and conditions of the purchase contract.
This product and its electronic accessories should not be mixed with other commercial wastes for disposal.
Correct disposal of batteries in this product
This marking on the battery, manual or packaging indicates that the batteries in this product should not
be disposed of with other household waste at the end of their working life. Where marked, the chemical
symbols Hg, Cd or Pb indicate that the battery contains mercury, cadmium or lead above the reference levels
in EC Directive 2006/66.

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English
Safety Information
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 any questions, call your nearest contact
centre or find help and information online at www.samsung.com.
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.
Follow directions. Do NOT attempt.
Make sure the machine is grounded to prevent electric shock.
Cut off the power supply. Do NOT disassemble.
FOR INSTALLATION
WARNING
Use a power cord with this product's power specifications or higher and use the power cord for this
appliance only. In addition, do not use an extension cord.
• Extending the power cord may result in electric shock or fire.
• Do not use an electric transformer. This may result in electric shock or fire.
• If the voltage/frequency/rated current condition is different, it may cause fire.
The installation of this appliance must be performed by a qualified technician or service company.
• Failing to do so may result in electric shock, fire, explosion, problems with the product, or injury and
may also void warranty on the installed product.
Install an Isolation Switch next to the Air Conditioner (but not on the panels of the Air Conditioner)
and circuit breaker dedicated to the air conditioner.
• Failing to do so may result in electric shock or fire.
Fix the outdoor unit firmly so that the electric part of the outdoor unit is not exposed.
• Failing to do so may result in electric shock, fire, explosion, or problems with the product.
Do not install this appliance near a heater, or inflammable material. Do not install this appliance in a
humid, oily or dusty location, in a location exposed to direct sunlight and water (or rain). Do not install
this appliance in a location where gas may leak.
• This may result in electric shock or fire.
Never install the outdoor unit in a location such as on a high external wall where it could fall.
• If the outdoor unit falls, it may result in injury, death or property damage.
This appliance must be properly grounded. Do not ground the appliance to a gas pipe, plastic water
pipe, or telephone line.
• Failing to do so may result in electric shock, fire, and explosion.
• Make sure to use a socket-outlet with ground.

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English
Safety Information
CAUTION
Install your appliance on a level and hard floor that can support its weight.
• Failing to do so may result in abnormal vibrations, noise, or problems with the product.
Install the drain hose properly so that water drains correctly.
• Failing to do so may result in water overflowing and property damage. Avoid adding drain to waste
pipes as odours may arise in the future.
When installing the outdoor unit, make sure to connect the drain hose so that draining is performed
correctly.
• The water generated during heating by the outdoor unit may overflow and result in property
damage.
In particular, in winter, if a block of ice falls, it may result in injury, death or property damage.
FOR POWER SUPPLY
WARNING
When the circuit breaker is damaged, contact your nearest service centre.
Do not pull or excessively bend the power line. Do not twist or tie the power line. Do not hook the
power line over a metal object, place a heavy object on the power line, insert the power line between
objects, or push the power line into the space behind the appliance.
• This may result in electric shock or fire.
CAUTION
When not using the air conditioner for a long period of time or during a thunder/lightning storm, cut
the power at the circuit breaker.
• Failing to do so may result in electric shock or fire.
FOR USING
WARNING
If the appliance is flooded, please contact your nearest service centre.
• Failing to do so may result in electric shock or fire.
If the appliance generates a strange noise, a burning smell or smoke, cut off the power supply
immediately and contact the nearest service centre.
• Failing to do so may result in electric shock or fire.
In the event of a gas leak (such as propane gas, LP gas, etc.), ventilate immediately without touching
the power line. Do not touch the appliance or power line.
• Do not use a ventilating fan.
• A spark may result in an explosion or fire.
To reinstall the air conditioner, please contact your nearest service centre.
• Failing to do so may result in problems with the product, water leakage, electric shock, or fire.

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Safety Information
• Delivery service for the product is not provided. If you reinstall the product in another location,
additional construction expenses and an installation fee will be charged.
• Especially, when you wish to install the product in an unusual location such as in an industrial area
or near the seaside where it is exposed to salt in the air, please contact your nearest service centre.
Do not touch the circuit breaker with wet hands.
• This may result in electric shock.
Do not turn the air conditioner off with the circuit breaker while it is operating.
• Turning the air conditioner off and then on again with the circuit breaker may cause a spark and
result in electric shock or fire.
After unpacking the air conditioner, keep all packaging materials well out of the reach of children, as
packaging materials can be dangerous to children.
• If a child places a bag over its head, it may result in suffocation.
Do not touch the air flow blade with your hands or fingers during heating.
• This may result in electric shock or burns.
Do not insert your fingers or foreign substances into the air inlet/outlet of the air conditioner.
• Take special care that children do not injure themselves by inserting their fingers into the product.
Do not strike or pull the air conditioner with excessive force.
• This may result in fire, injury, or problems with the product.
Do not place an object near the outdoor unit that allows children to climb onto the machine.
• This may result in children seriously injuring themselves.
Do not use this air conditioner for long periods of time in badly ventilated locations or near infirm
people.
• Since this may be dangerous due to a lack of oxygen, open a window at least once an hour.
If any foreign substance such as water has entered the appliance, cut off the power supply and
contact the nearest service centre.
• Failing to do so may result in electric shock or fire.
Do not attempt to repair, disassemble, or modify the appliance yourself.
• Do not use any fuse (such as cooper, steel wire, etc.) other than the standard fuse.
• Failing to do so may result in electric shock, fire, problems with the product, or injury.
CAUTION
Do not place objects or devices under the indoor unit.
• Water dripping from the indoor unit may result in fire or property damage.
Check that the installation frame of the outdoor unit is not broken at least once a year.
• Failing to do so may result in injury, death or property damage.
• To prevent personal injury, make sure that you change the directions of the horizontal air flow
blades after stopping the movements of the vertical air flow blade.
Max current is measured according to IEC standard for safety and current is measured according to
ISO standard for energy efficiency.
Do not stand on top of the appliance or place objects (such as laundry, lighted candles, lighted
cigarettes, dishes, chemicals, metal objects, etc.) on the appliance.
• This may result in electric shock, fire, problems with the product, or injury.

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English
Safety Information
Do not operate the appliance with wet hands.
• This may result in electric shock.
Do not spray volatile material such as insecticide onto the surface of the appliance.
• As well as being harmful to humans, it may also result in electric shock, fire or problems with the
product.
Do not drink the water from the air conditioner.
• The water may be harmful to humans.
Do not apply a strong impact to the remote control and do not disassemble the remote control.
Do not touch the pipes connected with the product.
• This may result in burns or injury.
Do not use this air conditioner to preserve precision equipment, food, animals, plants or cosmetics, or
for any other unusual purposes.
• This may result in property damage.
Avoid directly exposing humans, animals or plants to the air flow from the air conditioner for long
periods of time.
• This may result in harm to humans, animals or plants.
This appliance is not intended for use by persons (including children) with reduced physical, sensory
or mental capabilities, or lack of experience and knowledge, without supervision or instruction
concerning use of the appliance by a person responsible for their safety. Children should be
supervised to ensure that they do not play with the appliance.
FOR CLEANING
WARNING
Do not clean the appliance by spraying water directly onto it. Do not use benzene, thinner or alcohol
to clean the appliance.
• This may result in discolouration, deformation, damage, electric shock or fire.
Before cleaning or performing maintenance, cut off the power supply and wait until the fan stops.
• Failing to do so may result in electric shock or fire.
CAUTION
Take care when cleaning the surface of the heat exchanger of the outdoor unit since it has sharp
edges.
• This should be done by a qualified technician. Please contact your installer or service centre.
Do not clean the inside of the air conditioner by yourself.
• For cleaning inside the appliance, contact your nearest service centre.
• When cleaning the filter, refer to the descriptions in the ‘Cleaning at a Glance’ section.
• Failing to do so may result in damage, electric shock or fire.
• Make sure to prevent any injury from sharp edges of the surface when handling the heat exchanger.

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English
At a Glance
01 Air intake
02 Air filter
03 Air flow blade (up and down)
04 Air flow blade (left and right)
05 Room temperature sensor
06 Display
07 Power button /
Remote control receiver
Display
01
02
03
01 good'sleep indicator
02 Timer indicator
Auto clean indicator
03 Operation indicator
The actual product may differ slightly from the image depicted below.
Indoor Unit Overview
06
01
02
03
04
05
07

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At a Glance
Remote Control Overview
01 Set temperature indicator
02 Timer option indicator
03 Operation mode indicator
04 Options indicator
05 Low battery indicator
06 Transmit indicator
07 Fan speed indicator
08 Vertical air swing indicator
09 Settings indicator
10 Power button
11 Temperature button
12 Options button
13 Timer button
14 Direction button / Selection button
15 Vertical air swing button
16 Mode button
17 Fan speed button
18 Single user button
19 Settings button
20 SET button
01
05
06
07
08
09
15
16
17
19
20
02
03
04
10
11
12
18
13
14
Inserting batteries
two 1.5V AAA type batteries
NOTE
• The descriptions in this manual are primarily made
based on the remote control buttons.
• Although
Heat(AR KR/MR ), Quiet,
Virus
doctor ( ) , d’light Cool, Usage, Filter Reset, Display
is displayed on the remote control display, it is not
available on this model.

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English
At a Glance
Operation modes
You can change the current mode between Auto, Cool, Dry,Fan, and
Heat by pressing the button.
Controlling temperature
You can control the temperature in each mode as follows:
Mode Temperature control
Auto/Cool/
Heat Adjust by 1 °C between 16 °C and 30 °C.
Dry Adjust by 1 °C between 18 °C and 30 °C.
Fan You cannot control the temperature.
NOTE
You can use the Cool Dry, and Heat modes in the following conditions:
Mode Cool Dry Heat
Indoor
temperature 16 °C to 32 °C 18 °C to 32 °C 27 °C or less
Outdoor
temperature 15 °C to 52 °C 15 °C to 52 °C -5 °C to 24 °C
Indoor humidity
80% or less
relative
humidity
_ _
• If the air conditioner operates in a high humidity environment in the
Cool mode for an extended period of time, condensation may occur.
• If the outdoor temperature drops to -5°C, the heating capacity
may decrease to as much as 60% to 70% of the specified
capacity(AR KQ/MQ ).
You can use the air conditioner easily by selecting a mode and then by controlling the temperature, fan speed,
and air direction.
Remote Control Operation

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At a Glance
Controlling fan speed
You can select the following fan speeds in each mode:
Mode Available fan speeds
Auto/Dry (Auto)
Cool/Heat (Auto), (Low), (Med), (High),
(Turbo)
Fan (Low), (Med), (High), (Turbo)
Controlling air flow direction
Vertical air flow
Keep the vertical air flow in a constant direction by stopping the
movements of the vertical air flow blade.
In operation ►
NOTE
• If you adjust the vertical air flow blade manually, it may not close
completely when you turn off the air conditioner.
• You can control the air flow direction when the good'sleep function
is running while in the Heat mode, but not while in the Cool mode
(AR KQ/MQ ).
Horizontal air flow (manual)
Keep the horizontal air flow in a constant direction by changing the
directions of the horizontal air flow blades manually.

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English
Power Smart Features
Cool mode
Use the Cool mode to stay cool in hot weather.
► ► Select Cool.
NOTE
• For comfort, keep the temperature difference between the indoor
and outdoor air within 5 °C in the Cool mode.
• After selecting the Cool mode, select a function, temperature, and
fan speed that you want to apply.
–To cool your room quickly, select a low temperature and a
strong fan speed.
–To save energy, select a high temperature and a weak fan
speed.
2-Step cooling function
Use the 2-Step cooling function to quickly reach the set temperature.
The air conditioner automatically adjusts the fan speed and air flow
direction. You can select this function only when the Cool mode is
running.
In the Cool mode ► ► ►
Select 2-Step. ►
The smart and powerful cooling functions of the Samsung air conditioner keep an enclosed space cool and
comfortable.
Cooling Operation

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English
Power Smart Features
Dry mode
Use the Dry mode in rainy or humid weather.
► ► Select Dry.
NOTE
• The lower the set temperature is, the greater the dehumidifying
capacity is. When the current humidity seems to be high, adjust the
set temperature to a low temperature.
• You cannot use the Dry mode for heating. The Dry mode is designed
to produce a cooling side-effect.
The dehumidifying function of the Samsung air conditioner keeps an enclosed space dry and comfortable.
Dehumidifying Operation

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Power Smart Features
Heat mode
Use the Heat mode to stay warm.
► ► Select Heat.
NOTE
• This mode is supported by heating models only:
AR KQ/MQTT TT series.
• While the air conditioner warms up, the fan may not operate for
about 3 to 5 minutes at the beginning to prevent cold blasts.
• If the air conditioner heats insufficiently, use an additional heating
appliance in combination with the air conditioner.
• When the outdoor temperature is low and the humidity is high
in Heat mode, frost may develop on the outdoor heat exchanger.
This may also decrease the heating efficiency. If this occurs, the air
conditioner runs the defrost function for 5 to 12 minutes to remove
frost from the outdoor heat exchanger.
• When the defrost function is running, no air comes out from the
indoor unit in order to prevent cold air from coming out. When the
defrost function is finished, warm air comes out after a while.
• The cycle of the defrost function may be shortened depending on
the amount of frost on the outdoor unit.
• The cycle of the defrost function may be shortened depending on
the humidity from rain and snow, too.
• When the defrost function is running, you cannot select other
functions with the remote control. Select them after the defrost
function is finished.
The heating functions of the Samsung air conditioner keep an enclosed space warm and comfortable.
Heating Operation
EN_DB68-06045A-01.indd 14 2/23/2017 1:06:07 PM

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Power Smart Features
Auto mode
Use the Auto mode when you want the air conditioner to automatically
control the operation. The air conditioner will provide the most
comfortable atmosphere that it can.
► ► Select Auto.
NOTE
• When the indoor temperature seems to be higher or lower than the
set point, the air conditioner automatically produces either cool air to
cool down the indoor temperature or warm air to warm up the indoor
temperature.
Fan mode
Use the Fan mode to run the air conditioner like a common fan. The air
conditioner provides a natural breeze.
► ► Select Fan.
NOTE
• If the air conditioner will not be used for an extended period of time,
dry the air conditioner by running it in the Fan mode for 3 or 4 hours.
• The outdoor unit is designed not to operate in the Fan mode to
prevent cold air from entering through the unit. This is a normal
operation and not a fault with the air conditioner.
There is a variety of extra functionality provided by the Samsung air conditioner.
Quick Smart Features
EN_DB68-06045A-01.indd 15 2/23/2017 1:06:17 PM

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English
Power Smart Features
Fast function
Use the Fast function to quickly cool your room. This function is the
most powerful cooling function provided by the air conditioner. You can
select this function in the Cool mode.
In the Cool mode ► ► ►
Select Fast. ►
NOTE
• If you select the Fast function while such functions as 2-Step
cooling, Comfort, Single user, or good'sleep are running, these
functions are cancelled.
• You can change the air flow direction.
• You cannot change the set temperature and the fan speed.
Comfort function
Use the Comfort function when you feel the current cooling effect is
too strong. The air conditioner provides a mild cooling. You can select
this function in the Cool mode.
In the Cool mode ► ► ►
Select Comfort. ►
NOTE
• You can change the set temperature and the air flow direction.
• You cannot change the fan speed.
• If you select the Comfort function while such functions as 2-Step
cooling, Fast, Single user or good'sleep are running, these functions
are cancelled.
• If you feel cooling effect in the Comfort function is weak, cancel the
Comfort function.
EN_DB68-06045A-01.indd 16 2/23/2017 1:06:27 PM

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English
Power Smart Features
Beep sound function
Use the Beep sound function to turn on or off the beep sound that plays
when you press a button on the remote control.
► ► Select Beep. ►
EN_DB68-06045A-01.indd 17 2/23/2017 1:06:47 PM

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English
Energy-Saving Features
Single user function
Use the Single user function to reduce electricity consumption while
staying cool. You can select this function in the Cool mode.
In the Cool mode ►
NOTE
• When the Single user function starts, the pattern appears
on the remote control for a few seconds, and vertical air swing
begins automatically.
• If you select the Single user while such function as 2-Step cooling,
Fast, Comfort, or good'sleep are running, these modes are cancelled.
• After selecting the Single user function, you can change the set
temperature (24 °C to 30 °C in the Cool mode), fan speed, and
vertical air flow direction.
• When the Single user function is turned on in the Cool mode while
the set temperature is set to lower than 24 °C, the set temperature
is automatically raised to 24 °C. But if the set temperature is set to
between 25 °C and 30 °C, it remains the same.
• Even after you turn off the Single user function, vertical air swing
continues until you turn it off with the Vertical air swing ( )
button.
• You can also start the Single user function by pressing the Options (
) button.
In the Cool mode ► ► ►
Select Single user. ►
The smart energy-saving functions of the Samsung air conditioner reduce electricity consumption.
Energy-Saving Operation

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English
Energy-Saving Features
Timed on/Timed off function
Use the Timed on/Timed off to turn on or off the air conditioner after
the time that you set.
(Select On or Off among On, Off, and .) ►
(Set the on/off time.) ►
• Press the (Timer) button to change the current function
between On, Off, and (good’sleep). (good’sleep) is displayed in
the Cool and Heat modes only.
NOTE
• You can set a time between 0.5 and 24 hours. Set the time interval
to 0.0 to cancel the Timed on/off function.
• Once you start the Timed on/off function, the Timer ( ) indicator is
displayed on the indoor unit display.
• After starting the Timed on function, you can change the mode and
the set temperature. You cannot change the set temperature while
the Fan mode is running.
• You cannot set the same time for both of the Timed on and Timed
off functions.
Combining Timed on and Timed off
When the air
conditioner
is off
Example) Timed on: 3 hours, Timed off: 5 hours
The air conditioner turns on after 3 hours from the
moment you start Timed on/off, remains on for 2
hours, then turns off automatically.
When the air
conditioner
is on
Example) Timed on: 3 hours, Timed off: 1 hour
The air conditioner turns off after 1 hour from the
moment you start Timed on/off, then turns on after 2
hours from the moment it is turned off.
EN_DB68-06045A-01.indd 19 2/23/2017 1:07:32 PM

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English
Energy-Saving Features
good’sleep function
Use the good'sleep function to get a good sleep at night and to save
energy. You can select this function both in the Cool and Heat modes.
In the Cool or Heat mode ►(Select among
On, Off, and .) ►
(Set the operation time.) ►
• Press the (Timer) button to change the current function
between On, Off, and
(good’sleep).
NOTE
• You can adjust the set temperature by 1 °C between 16 °C and 30 °C.
• The recommended and optimal set temperatures in the good’sleep
function are as follows:
Mode Recommended set
temperature
Optimal set
temperature
Cool 25 °C to 27 °C 26 °C
Heat 21 °C to 23 °C 22 °C
• Once you start the good’sleep function, the
good’sleep( )
indicator
appears on the indoor unit display.
• You can set the operation time to between 0.5 and 12 hours. Set the
operation time to 0.0 to cancel the good’sleep function.
• The default operation time for the good’sleep function in the
Cool mode is 8 hours. If the operation time is set to over 5 hours,
the Wake up function begins 1 hour before the set time. The air
conditioner stops automatically when the operation time expires.
• When the Timed on, Timed off, and good'sleep functions are
overlapped, the air conditioner operates its timer with only the
function that you have started most recently.

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English
Cleaning and Maintenance
Running Auto clean
NOTE
• When you set the Auto clean timer, Clean blinks and then disappears on the remote control display. The
Timer ( ) indicator also appears on the indoor unit display.
• When the air conditioner is off, Auto clean starts immediately when it is selected. When the air conditioner is
on, Auto clean starts as soon as the air conditioner stops running.
• During Auto clean, the indoor fan continues to run, and air flow blades remain open to expel ambient air.
Cleaning the indoor unit exterior and outdoor unit heat exterior
Tepid damp cloth
Soft brush
Before cleaning, be sure to turn off the equipment and
disconnect the power plug. Spray water to clean the dust.
CAUTION
• Do not clean the display by using alkaline detergent.
• Do not use sulphuric acid, hydrochloric acid, or organic solvents (such as thinner, kerosene, and acetone) to
clean the surfaces. Do not put any stickers on it as this can damage the surface of the air conditioner.
• When you clean and inspect the heat exchanger on the outdoor unit, contact the local service centre for
help.
Cleaning at a Glance
Cleaning duration
(minutes)
Auto (Cool), Cool,
Dry 30
Auto (Heat), Heat,
Fan 15

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English
Cleaning and Maintenance
Cleaning the filter
Vacuum cleaner
Soft brush 30 minutes
Mild detergent
CAUTION
• Do not scrub the air filter with a brush or other cleaning utensil. This may damage the filter.
• Do not expose the air filter to direct sunlight when drying it.
NOTE
• Clean the air filter every 2 weeks. Cleaning term may vary depending on the usage and environmental
conditions.
• If the air filter dries in a humid area, it may produce offensive odours. Clean it again and dry it in a well-
ventilated area.

23
English
Cleaning and Maintenance
If the air conditioner operates abnormally, refer to the following chart to save time and unnecessary expenses.
Troubleshooting
Problem Solution
The air conditioner does
not work at all.
• Check the power status, then operate the air conditioner again.
• Switch on the circuit breaker, plug in the power cord, then operate the air
conditioner again.
• Make sure that the isolator is turned on.
• Check whether the Timed off function is running. Operate the air
conditioner again by pressing the Power button.
I cannot change the
temperature.
• Check whether the Fan or Fast mode is running. In these modes, the air
conditioner controls the set temperature automatically, and you cannot
change the set temperature.
Cool or warm air does
not come out of the air
conditioner.
• Check whether the set temperature is higher in the Cool mode or lower
in the Heat mode than the current temperature. Press the Temperature
button on the remote control to change the set temperature.
• Check whether the air filter is blocked with dirt. If the air filter is blocked,
the cooling and heating performance may decrease. Remove dirt regularly.
• Check whether the outdoor unit is covered or installed near obstacles.
Remove the coverings and obstacles.
• Check whether the air conditioner is running the defrost function. When ice
forms in winter or the outdoor temperature is too low, the air conditioner
runs the defrost function automatically. While this function is running, the
indoor fan stops and warm air does not come out.
• Check whether doors or windows are open. This may cause poor cooling or
heating performance. Close the doors and windows.
• Check whether the air conditioner is turned on immediately after the
cooling or heating operation stops. In this case, only the fan runs to protect
the outdoor unit compressor.
• Check whether the pipe length is too long. When the pipe length exceeds
the maximum pipe length, the cooling and heating performance may
decrease.
I cannot change the air
flow direction.
• Check whether the good'sleep function is running. While this function is
running, you cannot control the air flow direction. (But you can control the
air flow direction if this function is running in the Heat mode.)

24
English
Cleaning and Maintenance
Problem Solution
I cannot change the fan
speed.
• When the Auto, Dry, or Fast mode is running or the good'sleep function
is running in the Cool mode, the air conditioner controls the fan speed
automatically and you cannot change the fan speed.
The remote control does
not work.
• Replace the batteries in the remote control with new ones.
• Make sure that nothing is blocking the remote control sensor.
• Check whether there are strong lighting apparatus near the air
conditioner. Strong light which comes from fluorescent bulbs or neon
signs may interrupt the electric waves.
The Timed on/off function
does not work.
• Check whether you pressed the SET button on the remote control after
setting the time.
The indicator blinks
continuously.
• Press the Power button to turn off the air conditioner or disconnect the
power plug. If the indicator is still blinking, contact the service centre.
Odours permeate in the
room during operation.
• Check whether the air conditioner is running in a smoky area. Ventilate
the room or operate the air conditioner in the Fan mode for 3 to 4 hours.
(There are no components used in the air conditioner that emit a strong
odour.)
• Check whether the drains are clean. Clean them regularly.
An error is indicated. • If the indoor unit indicator blinks, contact the nearest service centre. Be
sure to pass the error code to the service centre.
Noise is generated. • When refrigerant flow changes, noise may be generated, depending on
the status of the air conditioner. This is a normal operation.
Smoke is generated from
the outdoor unit.
• If may not be a fire but it can be a steam generated from the outdoor
heat exchanger while the defrost function is running in the Heat mode
in winter.
Water drops from the pipe
connections of the outdoor
unit.
• Condensation may develop when the ambient temperature changes
excessively. This is a normal operation.

25
English
Cleaning and Maintenance
MODEL AR18KRFHCWK/MG AR18KQFHCWK/MG
CLIMATES CLASS T1 T1T3 T3
CAPACITY
COOLING 17200 Btu/h 15000 Btu/h 17500 Btu/h 15000 Btu/h
HEATING (H1) - 5100 W
RATED VOLTAGE & FREQUENCY 230V ~ 60 Hz 230V ~ 60 Hz
RATED CURRENT
COOLING 6.6 A 6.6 A7.9 A 7.9 A
HEATING (H1) - 6.6 A
RATED POWER
INPUT
COOLING 1480 W 1780 W 1500 W 1770 W
HEATING (H1) - 1490 W
EER/COP
COOLING 11.60 (Btu/hr)/W 8.45 (Btu/hr)/W 11.65 (Btu/hr)/W 8.45 (Btu/hr)/W
HEATING (H1) - 3.40 W/W
REFRIGERANT
TYPE R-410A
CHARGE 950 g [33.51 oz] 1290 g [45.50 oz]
ANNUAL ENERGY CONSUMPTION 3996 kWh/Year 4050 kWh/Year
TEMPERATURE
INDOOR
27˚C 29˚C 27˚C 20˚C 29˚C 20˚C- -
19˚C 19˚C 19˚C 15˚C 19˚C 15˚C- -
OUTDOOR
35˚C 46˚C 35˚C 7˚C 46˚C 7˚C- -
24˚C 24˚C 24˚C 6˚C 24˚C 6˚C- -
NET WEIGHT
INDOOR 11.7 kg 11.8 kg
OUTDOOR 41.5 kg 51.4 kg
DIMENSIONS OF
THE UNIT
INDOOR 1065 x 298 x 243 mm 1065 x 298 x 243 mm
OUTDOOR 880 x 648 x 310 mm 880 x 793 x 310 mm
COUNTRY OF ORIGIN THAILAND
Technical Specifications
EN_DB68-06045A-01.indd 25 2/23/2017 1:07:36 PM

26
English
Cleaning and Maintenance
MODEL AR24KRFHCWK/MG AR24KQFHCWK/MG
CLIMATES CLASS T1 T1T3 T3
CAPACITY
COOLING 20000 Btu/h 16500 Btu/h 20000 Btu/h 16500 Btu/h
HEATING (H1) - 5660 W
RATED VOLTAGE & FREQUENCY 230V
~ 60 Hz 230V ~ 60 Hz
RATED CURRENT
COOLING 7.5 A 8.6 A 8.6 A7.4 A
HEATING (H1) - 7.0 A
RATED POWER
INPUT
COOLING 1690 W 1950 W 1680 W 1930 W
HEATING (H1) - 1570 W
EER/COP
COOLING 11.85 (Btu/hr)/W 8.45 (Btu/hr)/W 11.90 (Btu/hr)/W 8.55 (Btu/hr)/W
HEATING (H1) - 3.60 W/W
REFRIGERANT
TYPE R-410A
CHARGE 1130 g [39.86 oz] 1330 g [46.91 oz]
ANNUAL ENERGY CONSUMPTION 4563 kWh/Year 4536 kWh/Year
TEMPERATURE
INDOOR
27˚C 29˚C 27˚C 20˚C 29˚C 20˚C- -
19˚C 19˚C 19˚C 15˚C 19˚C 15˚C- -
OUTDOOR
35˚C 46˚C 35˚C 7˚C 46˚C 7˚C- -
24˚C 24˚C 24˚C 6˚C 24˚C 6˚C- -
NET WEIGHT
INDOOR 11.6 kg 12.6 kg
OUTDOOR 50.8 kg 50.8 kg
DIMENSIONS OF
THE UNIT
INDOOR 1065 x 298 x 243 mm 1065 x 298 x 243 mm
OUTDOOR 880 x 793 x 310 mm 880 x 793 x 310 mm
COUNTRY OF ORIGIN THAILAND
EN_DB68-06045A-01.indd 26 2/23/2017 1:07:37 PM

27
English
Cleaning and Maintenance
MODEL AR24KRFHRWK/MG AR24KQFHRWK/MG
CLIMATES CLASS T1 T1T3 T3
CAPACITY
COOLING 20000 Btu/h 16500 Btu/h 20000 Btu/h 16500 Btu/h
HEATING (H1) - 5660 W
RATED VOLTAGE & FREQUENCY 230V
~ 60 Hz 230V ~ 60 Hz
RATED CURRENT
COOLING 7.5 A 8.6 A 8.6 A7.4 A
HEATING (H1) - 7.0 A
RATED POWER
INPUT
COOLING 1690 W 1950 W 1680 W 1930 W
HEATING (H1) - 1570 W
EER/COP
COOLING 11.85 (Btu/hr)/W 8.45 (Btu/hr)/W 11.90 (Btu/hr)/W 8.55 (Btu/hr)/W
HEATING (H1) - 3.60 W/W
REFRIGERANT
TYPE R-410A
CHARGE 1130 g [39.86 oz] 1330 g [46.91 oz]
ANNUAL ENERGY CONSUMPTION 4563 kWh/Year 4536 kWh/Year
TEMPERATURE
INDOOR
27˚C 29˚C 27˚C 20˚C 29˚C 20˚C- -
19˚C 19˚C 19˚C 15˚C 19˚C 15˚C- -
OUTDOOR
35˚C 46˚C 35˚C 7˚C 46˚C 7˚C- -
24˚C 24˚C 24˚C 6˚C 24˚C 6˚C- -
NET WEIGHT
INDOOR 11.6 kg 12.6 kg
OUTDOOR 52.6 kg 52.6 kg
DIMENSIONS OF
THE UNIT
INDOOR 1065 x 298 x 243 mm 1065 x 298 x 243 mm
OUTDOOR 880 x 793 x 310 mm 880 x 793 x 310 mm
COUNTRY OF ORIGIN THAILAND
EN_DB68-06045A-01.indd 27 2/23/2017 1:07:38 PM

28
English
Cleaning and Maintenance
MODEL AR18MRFHCWK/MG AR18MQFHCWK/MG
CLIMATES CLASS T1 T1T3 T3
CAPACITY
COOLING 17200 Btu/h 15000 Btu/h 17500 Btu/h 15000 Btu/h
HEATING (H1) - 5000 W
RATED VOLTAGE & FREQUENCY 230V ~ 60 Hz 230V ~ 60 Hz
RATED CURRENT
COOLING 6.6 A 6.6 A7.9 A 7.9 A
HEATING (H1) - 6.8 A
RATED POWER
INPUT
COOLING 1480 W 1780 W 1500 W 1770 W
HEATING (H1) - 1560 W
EER/COP
COOLING 11.60 (Btu/hr)/W 8.45 (Btu/hr)/W 11.65 (Btu/hr)/W 8.45 (Btu/hr)/W
HEATING (H1) - 3.20 W/W
REFRIGERANT
TYPE R-410A
CHARGE 950 g [33.51 oz] 1820 g [64.20 oz]
ANNUAL ENERGY CONSUMPTION 3996 kWh/Year 4050 kWh/Year
TEMPERATURE
INDOOR
27˚C 29˚C 27˚C 20˚C 29˚C 20˚C- -
19˚C 19˚C 19˚C 15˚C 19˚C 15˚C- -
OUTDOOR
35˚C 46˚C 35˚C 7˚C 46˚C 7˚C- -
24˚C 24˚C 24˚C 6˚C 24˚C 6˚C- -
NET WEIGHT
INDOOR 11.7 kg 11.9 kg
OUTDOOR 41.5 kg 51.9 kg
DIMENSIONS OF
THE UNIT
INDOOR 1065 x 298 x 243 mm 1065 x 298 x 243 mm
OUTDOOR 880 x 648 x 310 mm 880 x 793 x 310 mm
COUNTRY OF ORIGIN THAILAND

29
English
Cleaning and Maintenance
MODEL AR24MRFHRWK/MG AR24MQFHRWK/MG
CLIMATES CLASS T1 T1T3 T3
CAPACITY
COOLING 20000 Btu/h 16500 Btu/h 20000 Btu/h 16500 Btu/h
HEATING (H1) - 5660 W
RATED VOLTAGE & FREQUENCY 230V ~ 60 Hz 230V ~ 60 Hz
RATED CURRENT
COOLING 7.5 A 8.6 A 8.6 A7.4 A
HEATING (H1) - 7.0 A
RATED POWER
INPUT
COOLING 1690 W 1950 W 1680 W 1930 W
HEATING (H1) - 1570 W
EER/COP
COOLING 11.85 (Btu/hr)/W 8.45 (Btu/hr)/W 11.90 (Btu/hr)/W 8.55 (Btu/hr)/W
HEATING (H1) - 3.60 W/W
REFRIGERANT
TYPE R-410A
CHARGE 1130 g [39.86 oz] 1700 g [59.97 oz]
ANNUAL ENERGY CONSUMPTION 4563 kWh/Year 4536 kWh/Year
TEMPERATURE
INDOOR
27˚C 29˚C 27˚C 20˚C 29˚C 20˚C- -
19˚C 19˚C 19˚C 15˚C 19˚C 15˚C- -
OUTDOOR
35˚C 46˚C 35˚C 7˚C 46˚C 7˚C- -
24˚C 24˚C 24˚C 6˚C 24˚C 6˚C- -
NET WEIGHT
INDOOR 11.6 kg 12.8 kg
OUTDOOR 49.8 kg 52.7 kg
DIMENSIONS OF
THE UNIT
INDOOR 1065 x 298 x 243 mm 1065 x 298 x 243 mm
OUTDOOR 880 x 793 x 310 mm 880 x 793 x 310 mm
COUNTRY OF ORIGIN THAILAND

30
English
Installation
Carefully follow the precautions listed below because
they are essential to guarantee the safety of both the
air conditioner and the workers.
• 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
• 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.
• This product has been determined to be in
compliance with the Low Voltage Directive
(2006/95/EC) and the Electromagnetic
Compatibility Directive (2004/108/EC) of the
European Union.
• The manufacturer shall not be responsible for
damage originating from unauthorised 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 help 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 unauthorised 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 control (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.
Installation of the unit
• 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 authorised 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.
Safety Information on Installation

31
English
Installation
• 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 will be charged to
end user.
• When installing the outdoor unit at the seaside,
make sure that it is not directly exposed to sea
breeze. If you cannot find an adequate place free
from direct sea breeze, construct a protection wall
or a protective fence.
–Install the outdoor unit in a place (such as
near buildings etc.) where it can be protected
from sea breeze. Failure to do so may cause a
damage to the outdoor unit.
Sea
Sea breeze
Outdoor unit Outdoor unit
Sea breeze
Sea
• If you cannot avoid installing the outdoor unit at
the seaside, construct a protection wall around to
block the sea breeze.
• Construct a protection wall with a solid material
such as concrete to block the sea breeze. Make
sure that the height and the width of the wall are
1.5 times larger than the size of the outdoor unit.
Also, secure a space larger than 600 mm between
the protection wall and the outdoor unit for
exhausted air to ventilate.
Sea
Sea breeze
Outdoor unit
Protection wall
Outdoor unit
Protection wall
• Install the unit in a place where water can drain
smoothly.
• If you have any difficulty finding installation
location as prescribed above, contact your
manufacturer for details.
• Be sure to clean the sea water and the dust on the
heat exchanger of the outdoor unit and apply a
corrosion inhibitor on it. (At least once in a year.)
Power supply line, fuse, or circuit breaker
• 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.
• 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 2.2
Optional:Extending the power cable" in the
installation manual.

32
English
Installation
Step 1.1 Choosing the installation
location
Overview of installation location requirements
100 mm or more
Outdoor
Unit
Indoor
Unit
Cut insulation to have
rainwater drained
Outer wall
Drain hose hole
You can select the direction of
draining (left or right).
Maximum pipe height: 15 m
Maximum pipe length: 30 m
125 mm
or more
125 mm
or more
The actual units may look different from
the images depicted here.
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 10 mm)
to prevent rainwater from
getting inside through the
insulation.
Make at least one round to
reduce noise and vibration.
CAUTION
CAUTION
• Comply with the length and height limits
described in the figure above.
Minimum clearances for the outdoor unit
Wall
Minimum clearance in mm
300
600
Air flow direction
Side viewTop view
When installing 1 outdoor unit (6 cases)
(Unit: mm)
300
1500
300
150 600
1500
2000
500
300
300 1500
(Unit : m)
Model Pipe length Pipe height
Minimum Maximum Maximum
18 3 15 7
24 3 20 8
Preparation

33
English
Installation
When installing more than 1 outdoor unit (5 cases)
(Unit: mm)
1500 600 3000 2003000
3001500
600 600
1500
300
300 600 600 600
500
300
500
300
CAUTION
• If the outdoor unit is installed with any insufficient
clearance, it may generate sound and affect the
whole product.
• Be sure to install the outdoor unit in a level place
where its vibration does not affect the whole
product
Step 1.2 Packing and Unpacking
Indoor unit
Packing the unit as below procedure
1 Put the indoor unit onto the packing case.
2 Assemble cushion-both side of indoor unit. (Left
and Right)
3 Seal the packing case.
Unpacking the unit as below procedure
1 Open the packing case.
2 Take out the both side of cushion(Left and Right).
3 Move the set from the packing case.
Outdoor unit
Packing the unit as below procedure
1 Put the outdoor unit onto the cushion-bottom.
2 Put the cushion-top onto the outdoor unit
3 Put the packing case from the top of set.
4 Seal the packing case.
Unpacking the unit as below procedure
1 Take out the packing case from the set.
2 Take out the cushion-top.
3 Move the set from the cushion-bottom.
Produkt Specifikationer
Mærke: | Samsung |
Kategori: | Ikke kategoriseret |
Model: | AR18MRFHCWKNMG |
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