Samsung AC NN4DEH Series User manual

Air conditioner
User manual
AC***NN4DEH
•Thank you for purchasing this Samsung air conditioner.
•Before operating this unit, please read this user manual carefully and retain it for future reference.

2English
Safety Information 3
Safety Information 3
At a Glance 10
Indoor Unit Overview 10
Operation Features 11
Operating temperature and humidity
Cleaning and Maintenance 12
Cleaning and Maintaining 12
Cleaning the indoor unit exterior • Cleaning the outdoor unit heat exchanger •
Cleaning the air filter • Periodical maintenance • Troubleshooting
Contents
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.

Safety Information
3
English
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 the power line with the power specifications of the product or higher
and use the power line for this appliance only. In addition, do not use an
extension line.
• Extending the power line 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.
Safety Information
Safety Information

Safety Information
Safety Information
4English
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.
Install a switch 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 or fire.
Do not install this appliance near a heater, inflammable material. Do
not install this appliance in a humid, oily or dusty location, in a location
exposed to direct sunlight and water (rain drops). 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.
• Failure to do so may result in electric shock, fire, an explosion, or other
problems with the product.
• Never plug the power cord into a socket that is not grounded correctly
and make sure that it is in accordance with local and national codes.

Safety Information
5
English
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 is drained 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 the heating operation in 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.

Safety Information
Safety Information
6English
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,
unplug the power plug immediately and contact your 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.
• A 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 breakerwith wet hands.
• This may result in electric shock.
Do not turn the air conditioner off with the circuit breakerwhile 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.

Safety Information
7
English
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 front panel with your hands or fingers during the heating
operation.
• This may result in electric shock or burns.
Do not insert your fingers or foreign substances into the outlet when the
air conditioner is operating or the front panel is closing.
• Take special care that children do not injure themselves by inserting their
fingers into the product.
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 conditionerwith 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 the
power by unplugging the power plug and turning the circuit breaker off
and then contact your 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 copper, steel wire, etc.)other than the
standard fuse.
• Failing to do so may result in electric shock, fire, problems with the
product, or injury.

Safety Information
Safety Information
8English
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.
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.
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 controller and do not
disassemble the remote controller.
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.

Safety Information
9
English
This appliance is not intended for use by persons (including children) with
reduced physical, sensory or mental capabilities, or lack of experience and
knowledge, unless they have been given 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 playwith the appliance.
FOR CLEANING
WARNING
Do not clean the appliance by spraying water directly onto it. Do not use
benzene, thinner, alcohol or acetone to clean the appliance.
• This may result in discoloration, deformation, damage, electric shock or
fire.
Before cleaning or performing maintenance, unplug the air conditioner
from the wall socket 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.
• To avoid cutting your fingers, wear thick cotton gloves when cleaning it.
• 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 internal filter, refer to the descriptions in the ‘Cleaning
and Maintaining’ section.
• Failure to do may result in damage, electric shock or fire.

At a Glance
10 English
The indoor unit and its display may look slightly different from the illustration shown below,
depending on the model and the panel type.
Indoor Unit Overview
02
04
03
01
At a Glance
01 Display
02 Air flow blade/Air outlet (inside) /
Wind-Free panel
(You can use the Wind-Free Cooling function
when the Cool, Dry, or Fan mode is running.)
(Refer to the remote control manual for
product operation)
03 Air intake
04 Air filter (under the grille)
Indication Function
On/Off operation indicator
Removing frost indicator
Timer indicator
Filter cleaning indicator
Remote control sensor

At a Glance
11
English
Operation Features
Operating temperature and humidity
When using the air conditioner follow the operating temperature and humidity ranges.
Mode Outdoor temperature Indoor temperature Indoor humidity
Cool mode -5°C to 48°C 18°C to 32°C 80% or less
Heat mode -15°C to 24°C 30°C or less -
Dry mode -5°C to 48°C 18°C to 32°C 80% or less
CAUTION
• If you use the air conditioner at a relative humidity above 80%, it may cause a formation of
condensation and a leakage of water on the floor.
• The rated heating capacity is based on an outdoor temperature of 7°C. If the outdoor temperature
goes down below 0°C, heating efficiencies may decrease depending on the temperature
conditions.
• If the indoor unit is out of the operating temperature and humidity range, the safery device may
operate and the air conditioner may stops.

Cleaning and Maintenance
12 English
Cleaning and Maintenance
Before cleaning the indoor unit, be sure to turn off the auxiliary power switch.
Cleaning and Maintaining
Cleaning the indoor unit exterior
Wipe the surface of the unit with a slightly wet
or dry cloth when needed. Wipe off dirt of odd-
shaped areas by using a soft brush.
CAUTION
• Do not use alkaline detergent, sulphuric
acid, hydrochloric acid, or organic solvents
(such as thinner, kerosene, and acetone) to
clean the surfaces.
• Do not attach any stickers on the surfaces
because this may cause damage.
• When you clean the heat exchanger on the
indoor unit, you need to disassemble the
indoor unit. Therefore, you must contact the
local service center for help.
Cleaning the outdoor unit heat exchanger
Spraywater to clean the dust.
CAUTION
• The heat exchanger of the outdoor unit has
sharp edges. Take care when cleaning its
surface.
NOTE
• If it is difficult to clean the heat exchanger
of the outdoor unit, contact the local service
center.
Cleaning and Maintenance

Cleaning and Maintenance
13
English
Cleaning and Maintenance
Cleaning the air filter
CAUTION
• Be sure to hold the grille with a hand to prevent dropping from the opening of the front grille.
1 Detaching the air filter
Push down the hooks at each side of the front
grille to open the grille.
NOTE
• The hooks are located on both sides of the
front grill with the Samsung logo.
Pull out the air filter from the indoor unit.
2 Cleaning the air filter
Clean the 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.
CAUTION
Do not scrub the air filter with a brush or other
cleaning utensil. This may damage the filter.
NOTE
• 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.
• The cleaning period may differ depending on
the usage and environmental conditions, so
clean the air filter every week if the indoor
unit is in the dusty area.

Cleaning and Maintenance
14 English
Cleaning and Maintaining
Cleaning and Maintenance
3 Reassembling the air filter
CAUTION
• If the indoor unit is used without the air filter,
the indoor unit may be damaged due to dust.
4 Resetting the air filter
After cleaning and reassembling the air filter,
be sure to reset the filter-cleaning reminder as
follows:
• Indoor unit with the wired remote control:
Press the Filter Reset button.
• Indoor unit with the wireless remote control:
Press the Options button → < or > → (Filter
Reset) Blinking → press the SET button.
NOTE
• The filter reset indicator blinks when the air
filter should be cleaned.
• If the angle of the air flow blade is changed
by opening the front grille for installation
or maintenance of the indoor unit, be sure
to turn off and then on the auxiliary switch
before operating the indoor unit again. If
not, the angle of the air flow blade may be
changed and the blades may not be closed
after turning off the indoor unit.

Cleaning and Maintenance
15
English
Cleaning and Maintenance
Periodical maintenance
Unit Maintenance item Interval Requires qualified
technicians
Indoor
unit
Clean the air filter. At least once a month
Clean the condensate drain pan. Once a year Required
Clean up the heat exchange. Once a year Required
Clean the condensate drain pipe. Once every 4 months Required
Replace the remote control batteries. At least once a year
Outdoor
unit
Clean the heat exchanger on the
outside of the unit. Once every 4 months Required
Clean the heat exchanger on the
inside of the unit. Once a year Required
Clean the electric components with
jets of air. Once a year Required
Verify that all the electric
components are firmly tightened. Once a year Required
Clean the fan. Once a year Required
Verify that the fan assemblies are
firmly tightened. Once a year Required
Clean the condensate drain pan. Once a year Required

Cleaning and Maintenance
16 English
Cleaning and Maintaining
Cleaning and Maintenance
Troubleshooting
Refer to the following chart if the air conditioner operates abnormally. This may save time and
unnecessary expense.
Problem Solution
The air conditioner
does not operate
immediately after it
has been restarted.
• 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.
The air conditioner
does not operate
at all.
• Check if the power plug is properly connected.
• Check whether the auxiliary power switch (MCCB, ELB) is turned on.
• If the auxiliary power switch (MCCB, ELB) is turned off, the air
conditioner does not work although you press the (Power) button.
• When you clean the air conditioner or do not use it for an extended
period of time, turn off the auxiliary power switch (MCCB, ELB).
• After the air conditioner is not used for an extended period of time, be
sure to turn on the auxiliary power switch (MCCB, ELB) 6 hours before
starting operation.
NOTE
• The auxiliary power switch (MCCB, ELB) is sold separately.
• Make sure that auxiliary power switch (MCCB, ELB) is installed in
the distribution box inside the building.
• If the air conditioner is turned off by the Timed off function, turn on the
air conditioner again by pressing the (Power) button.
The temperature
does not change.
• Check whether the Fan mode is running. In the Fan mode, the air
conditioner controls the set temperature automatically, and you cannot
change the set temperature.
Warm air does not
come out of the air
conditioner.
• Check whether the outdoor unit is designed for cooling only. In this case,
warm air does not come out although you select the Heat mode.
• Check whether the remote control is designed only for cooling only. Use
a remote control that supports both cooling and heating.
The fan speed does
not change.
• Check whether the Auto or Dry mode is running. In these modes, the
air conditioner controls the fan speed automatically, and you cannot
change the fan speed.
The wireless
remote control
does not operate.
• Check whether the batteries are discharged. Replace the batteries with
new ones.
• Make sure that nothing is blocking the remote control sensor.
• Check whether any strong lighting sources are near the air conditioner.
Strong light which comes from fluorescent bulbs or neon signs may
interfere with the remote control.

Cleaning and Maintenance
17
English
Cleaning and Maintenance
Problem Solution
The wired remote
control does not
operate.
• Check whether the indicator is displayed at the bottom right of the
remote control display. In this case, turn off both the air conditioner and
the auxiliary power switch, and then contact a service centre.
The air conditioner
is not turned on or
off immediately
with the wired
remote control.
• Check whether the wired remote control is set for group control. In this
case, the air conditioners connected to the wired remote control are
turned on or off sequentially. This operation takes up to 32 seconds.
The Timed on/off
function does not
operate.
• Check whether you pressed the (SET) button on the remote control
after setting the on/off time. Set the on/off time.
The indoor unit
display blinks
continuously.
• Turn on the air conditioner again by pressing the (Power) button.
• Turn off and then turn on the auxiliary power switch, and then turn on
the conditioner.
• If the indoor unit display is still blinking, contact a service centre.
I want to get cooler
air.
• Operate the air conditioner with a electric fan to save energy and
enhance the cooling efficiency.
The air is not cool or
warm enough.
• In the Cool mode, cool air does not come out if the set temperature is
higher than the current temperature.
– Remote control: Press the Temperature button repeatedly until the
set temperature (minimum: 18°C) is set to lower than the current
temperature.
• In the Heat mode, warm air does not come out if the set temperature is
lower than the current temperature.
– Remote control: Press the Temperature button repeatedly until the
set temperature (maximum: 30°C) is set to higher than the current
temperature.
• Both cooling and heating do not operate in the Fan mode. Select the
Cool, Heat, Auto, or Dry mode.
• Check whether the air filter is blocked with dirt. A dusty filter may
decrease the cooling and heating efficiencies. Clean the air filter
frequently.
• If a cover is on the outdoor unit or any obstacle is present near the
outdoor unit, remove them.
• Install the outdoor unit in a well-ventilated place. Avoiding places
exposed to direct sunlight or close to a heating appliance.
• Place a sunscreen over the outdoor unit to protect it from direct
sunlight.
• If the indoor unit is installed in a place exposed to direct sunlight, pull
the curtains on the windows.

Cleaning and Maintenance
18 English
Cleaning and Maintaining
Cleaning and Maintenance
Problem Solution
The air is not cool or
warm enough.
• Close the windows and doors to maximize the cooling and heating
efficiencies.
• If the Cool mode is stopped and then started immediately, cool air comes
out after about 3 minutes to protect the compressor of the outdoor unit.
• When the Heat mode is started, warm air does not come out
immediately to prevent cool air from coming out at the beginning.
• If the refrigerant pipe is too long, the cooling and heating efficiencies
may be decreased. Avoid exceeding the maximum pipe length.
The air conditioner
makes strange
noises.
• In certain conditions (especially, when the outdoor temperature is
lower than 20°C), a hissing, rumbling, or splashing sound may be heard
while the refrigerant is circulating through the air conditioner. This is a
normal operation.
• When you press the (Power) button on the remote control, noise
may be heard from the drain pump inside the air conditioner. This noise
is a normal sound.
Unpleasant odours
permeate the room.
• If the air conditioner is running in a smoky area or if there is a smell
entering from outside, ventilate the room properly.
• If both indoor temperature and indoor humidity are high, operate the air
conditioner in the Clean or Fan mode for1 to 2 hours.
• If the air conditioner has not been operated for an extended period
of time, clean the indoor unit and then operate the air conditioner in
the Fan mode for 3 to 4 hours to dry the inside of the indoor unit for
removal of unpleasant odours.
• If the air filter blocked with dirt, clean the air filter.
Steam is produced
on the indoor unit.
• In winter, if the indoor humidity is high, steam may be produced around
the air outlet while the defrost function is running. This is a normal
operation.
The outdoor unit
fan continues to
operate when the
air conditioner is
turned off.
• When the air conditioner is turned off, the outdoor unit fan may
continue to operate to reduce noise of the refrigerant gas. This is a
normal operation.
Water drops
from the piping
connections of the
outdoor unit.
• Condensation may develop due to the difference in temperature. This is
a normal condition.
Steam is produced
on the outdoor unit.
• In winter, when the air conditioner runs in the Heat mode, the frost on
the heat exchanger melts and steam may be produced. This is a normal
operation, neither product malfunction nor a fire.

Cleaning and Maintenance
19
English
Cleaning and Maintenance

COUNTRY CALL OR VISIT US ONLINE AT
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[phone] (Overseas contact)
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