Air conditioner
User manual/Installation manual
AJ***RBTDEH
• Thank you for purchasing this Samsung air conditioner.
• Before operating this unit, please read this user manual carefully and retain it for future
reference.
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English
Contents
Safety Information 4
Safety Information 4
At a Glance 12
Indoor Unit Overview 12
Display
Remote Control Overview 13
Inserting batteries
Remote Control Operation 14
Operation modes
Controlling temperature
Controlling fan speed
Controlling air flow direction
Power Smart Features 16
Cooling Operation 16
Cool mode
2-Step cooling function
Dehumidifying Operation 17
Dry mode
Heating Operation 18
Heat mode
Quick Smart Features 19
Auto mode
Fan mode
Fast function
Comfort function
Beep sound function
Quiet function
Display lighting function
Energy-Saving Features 22
Energy-Saving Operation 22
Timed on/Timed off function
good’sleep function
Cleaning and Maintenance 24
Cleaning at a Glance 24
Troubleshooting 26
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Installation 30
Safety Information on Installation 30
Preparation 32
Step 1.1 Choosing the installation location
Step 1.2 Checking and preparing accessories and tools
Step 1.3 Drilling a hole through the wall
Step 1.4 Taping the pipes, cables, and drain hose
Indoor Unit Installation 34
Step 2.1 Connecting the power and communication 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
Installation Inspection 40
Step 3.1 Performing the gas leak tests
Step 3.2 Performing final check and trial operation
Sub PCB installation(optional) 42
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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Safety InformationSafety Information
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
Safety Information
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Safety Information
Safety Information
Safety Information
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.
Safety Information
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Safety InformationSafety Information
Safety Information
CAUTION
Please cover the air conditioner with PE BAG after installation,
and remove it when you start to run air conditioner.
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.
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Safety Information
Safety Information
Safety Information
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.
•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.
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Safety InformationSafety Information
Safety Information
•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.
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Safety Information
Safety Information
Safety Information
•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,
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Safety InformationSafety Information
Safety Information
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 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.
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Safety Information
Safety Information
Safety Information
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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At a Glance
At a Glance
The actual product may differ slightly from the image depicted below.
Indoor Unit Overview
At a Glance
01
02
03
04
05
06
07
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
01
02
03
04
Temperature indicator
Filter Reset indicator( )
Electricity consumption indicator
Auto clean indicator( )
02
Timer indicator/good’sleep indicator
03 Smart Saver indicator
If using a multi system, this function is not
supported.
04 Power button /
Remote controller receiver
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At a Glance
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
NOTE
• The descriptions in this manual are primarily made
based on the remote control buttons.
• Although Single user / Ionizer( ) / d'light Cool /
Usage are displayed on the remote control display,
they are not available on this model.
At a Glance
01
05
06
07
09
15
16
17
19
20
02
03
04
10
11
12
18
13
14
08
Inserting batteries
two 1.5V AAA type batteries
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At a Glance
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
-5 °C to 46 °C -5 °C to 46 °C -15 °C to 24 °C
Indoor
humidity
80% or less
relative humidity
_ _
Remark
AJ100*** outdoor
temperature :
-10˚Cto46˚C.
AJ100*** outdoor
temperature :
-10˚Cto46˚C.
• Thestandardizedtemperatureforheatingis7˚C.Iftheoutdoor
temperaturedropsto0˚Corbelow,theheatingcapacitycanbe
reduced depending on the temperature condition.
• Ifthecoolingoperationisusedatover32˚C(indoortemperature),it
does not cool at its full capacity.
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
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
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 vertical air flow direction when the good'sleep
function is running while in the Heat mode, but not while in the
Cool mode.
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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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.
– As the indoor temperature approaches the set temperature, the
compressor will operate at a low speed to save energy.
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
Power Smart Features
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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
Power Smart Features
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Power Smart Features
Heat mode
Use the Heat mode to stay warm.
► ►
Select Heat.
NOTE
• 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
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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
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Power Smart Features
Fast function
Use the Fast function to quickly cool or heat your room. This function
is the most powerful cooling and heating function provided by the
air conditioner. You can select this function both in the Cool and Heat
modes.
In the Cool or Heat mode
► ► ►
Select Fast.
►
NOTE
• If you select the Fast function while such functions as 2-Step
cooling, Comfort, Quiet, 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.
• When you select the Fast function in the Heat mode, you may not
be able to increase the fan speed in order to prevent cool air from
blowing.
Comfort function
Use the Comfort function when you feel the current cooling or heating
effect is too strong. The air conditioner provides a mild cooling or
heating. You can select this function both in the Cool and Heat modes.
In the Cool or Heat 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, Quiet, or good'sleep are running, these functions are
cancelled.
• If you feel cooling or heating effect in the Comfort function is weak,
cancel the Comfort function.
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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.
►
Quiet function
Use the Quiet function to reduce operating noise. You can select this
function both in the Cool and Heat modes.
In the Cool or Heat mode
► ► ►
Select Quiet.
►
NOTE
• You can change the set temperature and the air flow direction.
• You cannot change the fan speed.
• If you select the Quiet function while such functions as 2-Step
cooling, Fast, Comfort, or good'sleep are running, these functions
are cancelled.
Display lighting function
Use the Display lighting function to turn on or off the lighting of the
indoor unit display.
► ►
Select Display.
►
NOTE
• The Display lighting function does not operate when the indoor
unit is turned off.
• The Timer ( ) indicator does not disappear, even if you turn off
the Display lighting function.
• If you change the current mode or function when the Display
lighting function is on, the Display lighting function turns off.
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Energy-Saving Features
Energy-Saving Operation
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.
Energy-Saving Features
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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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Cleaning and Maintenance
Running Auto clean
Indoor unit display
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
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 and Maintenance
Soft brush
Tepid damp cloth
Before cleaning, be sure to turn off the equipment
and disconnect the power plug.
Spray water to clean the dust.
Cleaning duration
(minutes)
Auto (Cool), Cool,
Dry
30
Auto (Heat), Heat,
Fan
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Cleaning and Maintenance
Cleaning the filter
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.
Resetting the filter-cleaning reminder
Vacuum cleaner
Soft brush
30 minutes
Mild detergent
Indoor unit display
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Cleaning and Maintenance
Troubleshooting
If the air conditioner operates abnormally, refer to the following chart to save
time and unnecessary expenses.
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.
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Cleaning and Maintenance
Problem Solution
Cool or warm air
does not come
out of the air
conditioner.
• 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.)
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.
28
English
Cleaning and Maintenance
Problem Solution
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.
29
English
Cleaning and Maintenance
Problem Solution
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.
30
English
Installation
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.
• 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.
• 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
Safety Information on Installation
31
English
Installation
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.
• 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.
• 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.
Sea breeze
Protection wall
Outdoor unit
Sea
Outdoor unit
Protection wall
Sea breeze
Outdoor unit
Sea
Sea breeze
Sea
Outdoor unit
32
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Installation
Preparation
Step 1.1 Choosing the installation
location
Overview of installation location requirements
CAUTION
CAUTION
• Comply with the length and height limits described in the
figure above.
Step 1.2 Checking and preparing
accessories and tools
Accessories
Accessories in the indoor unit package
Installation plate (1) Remote control (1)
User & Installation Manual (1)
Remote control battery (2)
Tools
General tools
• Vacuum pump
(Backward flowing
prevention)
• Manifold gauge
• Stud finder
• Torque wrench
• Pipe cutter
• Reamer
• Pipe bender
• Spirit level
• Screwdriver
• Spanner
• Drill
• L-wrench
• Measuring tape
Tools for test operation
• Thermometer
• Resistance meter
• Electroscope
100 mm or more
125 mm
or more
125 mm
or more
Drain hose hole
You can select the direction of
draining (left or right).
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Installation
Step 1.3 Drilling a hole through the
wall
Before fixing the installation plate to a wall and then fixing
the indoor unit to the installation plate, a window frame, or
a gypsum board, you must determine the position of a hole
(with 65 mm inner diameter) through which the pipe bundle
(consisting of power and communication cables, refrigerant
pipes, and drain hose) will pass and then drill that hole.
1. Determine the position of a 65 mm hole in consideration
of the possible directions of the pipe bundle and
the minimum distances between the hole and the
installation plate.
CAUTION
• If changing the pipe direction from left to right, do not
drastically bent it but slowly turn it in the opposite
direction as shown. Otherwise, the pipe may be damaged
in the process.
2. Drill the hole.
CAUTION
• Be sure to drill only one hole.
• Make sure that the hole slants downwards so that the
drain hose slants downwards to drain water well.
Step 1.4 Taping the pipes, cables, and
drain hose
1. Wrap foam insulation on parts without insulation on the
ends of the refrigerant pipes, as shown in the figure. This
wrapping minimises condensation problem.
2. Wind the refrigerant pipes, power cable, communication
cable and drain hose with vinyl tape to make a pipe
bundle.
<Possible directions of the pipe bundle>
Left
Right
Rear right or left
Bottom right
Insulation
Refrigerant pipes
Refrigerant pipes
(assembly pipe)
Installation plate
Vinyl tape
Power and communication cables
(assembly cable)
Drain hose
Wall
Drain hose
Indoor unit
<The hole slants downwards>
(Unit : mm)
Model A B C D
**020/025/
035*******
30 96 38 30
**050/068******* 38 126 70 38
Pipe bundle hole: Ø 65 mm
Pipe bundle hole
<Minimum distances between the hole and the
installation plate>
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Installation
Step 2.1 Connecting the power and
communication cables (assembly cable)
• When performing electrical and earthing works, be sure
to comply with the 'technical standards of electrical
installations' and the 'wiring regulations' in the local
regulations.
• Tightentheterminalblockscrewto1.2-1.8N•m(12-18
kgf•cm).
NOTE
• Each wire is labelled with the corresponding terminal
number.
• Use shield cable (Category 5; less than 50pF/m) for noisy
environmental site.
• Power supply cords of parts of appliances for outdoor
use shall not be lighter than polychloroprene sheathed
flexible cord. (Code designation IEC: 60245 IEC 66/
CENELEC: H07RN-F, IEC: 60245 IEC 57/CENELEC:
H05RN-F)
• Power & Communication cable shall not exceed 30m.
CAUTION
• For the terminal block wiring, use a wire with a ring
terminal socket only. Regular wires without a ring
terminal socket may become a hazard due to overheating
of the electrical contact during installation.
• If you need to extend the pipe, be sure to extend the
cable too. The maximum length of each of the cable and
pipe used should not exceed 15(**020/025/035******)
/30(**050/068******)metres.
• Do not connect two or more different cables to extend
the length. This connection may cause fire.
• Each circular terminal must match the size of its
corresponding screw in the terminal block.
• After connecting the cables, make sure that terminal
numbers on the indoor and outdoor units match.
• Ensure that power and communication cables are
separated, they must not be in the same cable.
WARNING
• Connect the wires firmly so that wires cannot be pulled
out easily. (If they are loose, it could cause burn-out of
the wires.)
• TightentheHolderWireClampscrewto0.8~1.0N•m
(8~10kgf•cm)
1(L)2(N) F1 F2
Model
**020/025/035/050******* **068*******
Power cable
(Outdoor unit)
3G X 1.5 mm²,
H07RN-F
3G X 2.5 mm²,
H07RN-F
Outdoor-toindoor
power cable
3G X 1.0 mm²,
H07RN-F
3G X 1.0 mm²,
H07RN-F
Communication
cable
2 X 0.75 mm²,
H05RN-F
2 X 0.75 mm²,
H05RN-F
Type GL 20A 25A
Before
connecting
Correct Upside down Damaged Non-circular
After
connecting
Correct Correct
Upside down Non-fitted
(Front view) (Side view)
<Circular terminal>
Control box
Fasten the screws for the wire holders.
Indoor Unit Installation
35
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Installation
Step 2.2 Optional: Extending the
power cable
1. Prepare a compressor and the following tools.
Tools Spec Shape
Crimping pliers MH-14
Connection
sleeve (mm)
20xØ6.5
(HxOD)
Insulation tape Width 19 mm
Contraction
tube (mm)
70xØ8.0
(LxOD)
2. As shown in the figure, peel off the shields from the
rubber and wire of the power cable.
• Peel off 20 mm of cable shields from the pre-
installed tube.
CAUTION
• For information about the power cable specifications
for indoor and outdoor units, refer to the installation
manual.
• After peeling off the tube wire, you must insert a
contraction tube.
20 20
20
20
60
120
180
3. Insert both sides of core wire of the power cable into the
connection sleeve.
• Method 1: Push the core wire into the sleeve from
both sides.
• Method 2: Twist the wire cores together and push it
into the sleeve.
4. Using a crimping tool, compress the two points and flip
it over and compress another two points in the same
location.
• The compression dimension should be 8.0.
• After compressing it, pull both sides of the wire to
make sure it is firmly pressed.
5. Wrap it with the insulation tape twice or more and
position your contraction tube in the middle of the
insulation tape.
Three or more layers of insulation are required.
6. Apply heat to the contraction tube to contract it.
7. After tube contraction work is completed, wrap it with
the insulation tape to finish.
CAUTION
• Make sure that the connection parts are not exposed
to outside.
• Be sure to use insulation tape and a contraction tube
made of approved reinforced insulating materials
that have the same level of withstand voltage with
the power cable. (Comply with the local regulations
on extensions.)
Power cable
Pre-installed tube for the power cable
(Unit: mm)
(Unit: mm)
Method 1
Method 2
Connection sleeve
Connection sleeve
Compression
dimension
Compress it 4 times
Compress it 4 times
Method 1
Method 2
5 mm
5 mm
Insulation tape
Method 1 Method 2
Insulation tape
40 mm
35 mm
Contraction tube
Insulation tape
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Installation
WARNING
• In case of extending the electric wire, please DO NOT use
a round-shaped pressing socket.
– Incomplete wire
connections can cause
electric shock or a fire.
Step 2.3 Installing and connecting
the drain hose
1. Install the drain hose.
2. Pour water into the drain pan. Check whether the hose
is well drained.
CAUTION
• Make sure that the indoor unit is in upright position when
you pour water to check for leakage. Make sure that the
water does not overflow onto the electrical part.
• If the diameter of the connection hose is smaller than the
product's drain hose, water leakage may occur.
• Inadequate installation may cause water leakage.
• If the drain hose is routed inside the room, insulate the
hose so that dripping condensation does not damage the
furniture or floors.
• Do not box in or cover the drain hose connection.
Drain hose connection must be easily accessible and
serviceable.
Step 2.4 Optional: Extending the
drain hose
(A) (B)
Indoor unit
Drain hose
Wall
5 cm
less
Ditch
Slant downwards
Slant upwards Dipped in water
Bent
Too small clearance
Too small clearance
Drain hose
Assembly pipe Connection hose
Drain hose (A)
Extension drain hose (B)
Drain hose
Extension drain hose
20 mm or more
Foam insulation
Vinyl tape
40~45mm
Indoor Unit Installation
37
English
Installation
Step 2.5 Optional: Changing the
direction of the drain hose
CAUTION
• Make sure that the indoor unit is in upright position when
you pour water to check for leakage. Make sure that the
water does not overflow onto the electrical part.
Step 2.6 Installing and connecting
the assembly pipes to the refrigerant
pipes (assembly pipe)
Connect indoor and outdoor units with field-supplied copper
pipes by means of flare connections. Use insulated seamless
refrigeration grade pipe only, (Cu DHP type according to
ISO1337), degreased and deoxidized, suitable for operating
pressures of at least 4200 kPa and for burst pressure of at
least 20700 kPa. Under no circumstances must sanitary type
copper pipe be used.
There are 2 refrigerant pipes of different diameters:
• The smaller one is for the liquid refrigerant
• The larger one is for the gas refrigerant
A short liquid refrigerant pipe and a short gas refrigerant
pipe are already fitted to the air conditioner. The connection
procedure for the refrigerant pipes varies according to the
exit position of each pipe when facing the wall:
1. Cut out the appropriate knock-out piece (A, B, C) on
the rear of the indoor unit unless you connect the pipe
directly from the rear.
2. Smooth the cut edges.
3. Remove the protection caps of the pipes and connect
the assembly pipe to each pipe. Tighten the nuts
first with your hands, and then with a torque wrench,
applying the following torque:
Outer diameter (mm) Torque(N•m) Torque(kgf•cm)
ø 6.35 14 to 18 140 to 180
ø 9.52 34 to 42 350 to 430
ø 12.70 49 to 61 500 to 620
ø 15.88 68 to 82 690 to 830
NOTE
• If you want to shorten or extend the pipes, see Step
2.7 Shortening or extending the refrigerant pipes
(assembly pipe) on page 38.
4. Cut off the remaining foam insulation.
5. If necessary, bend the pipe to fit along the bottom of the
indoor unit. Then pull it out through the appropriate hole.
• The pipe should not project from the rear of the
indoor unit.
• The bending radius should be 100 mm or more.
6. Pass the pipe through the hole in the wall.
Drain pan outlet
Rubber cap
Pour water in the direction of arrow.
Direction of the drained water
<Front view>
<Side view>
Left(A)
Underside(C)
Right(B)
38
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Installation
NOTE
• The pipe will be insulated and fixed permanently into
position after finishing the installation and the gas leak
test. For further details. see Step 3.1 Performing the gas
leak tests on page 40.
CAUTION
• Tighten the flare nut with a torque wrench according to
specified method. If the flare nut is over-tightened, the
flare may break and cause refrigerant gas leakage.
• Do not box in or cover the pipe connection. All refrigerant
pipe connection must be easily accessible and
serviceable.
Step 2.7 Shortening or extending the
refrigerant pipes (assembly pipe)
90°
R 0.4 to 0.8
90°±2°
45°±2°
L
D
D
A
CAUTION
• If you need a pipe longer than specified in piping codes
and standards, you must add refrigerant to the pipe.
Otherwise, the indoor unit may freeze.
• While removing burrs, put the pipe face down to make
sure that the burrs do not get in to the pipe.
Pipe cutter
Pipe
Oblique Rough
Burr
(Unit: mm)
Outer diameter (D) Depth (A) Flare dimension (L)
ø 6.35 1.3 8.7 to 9.1
ø 9.52 1.8 12.8 to 13.2
ø 12.70 2.0 16.2 to 16.6
ø 15.88 2.2 19.3 to 19.7
(Unit: mm)
Outer diameter (mm) Torque(N•m) Torque(kgf•cm)
ø 6.35 14 to 18 140 to 180
ø 9.52 34 to 42 350 to 430
ø 12.70 49 to 61 500 to 620
ø 15.88 68 to 82 690 to 830
Pipe
Flare
Connecting pipe
Indoor outlet pipe
Flare nut
<Flare nut>
Liquid service port
<High pressure>
Gas service port
<Low pressure>
Correct
Inclined Cracked
Uneven
thickness
Damaged
surface
Indoor Unit Installation
39
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Installation
NOTE
• Excessive torque may cause gas leakage. When extending
the pipe with welding or brazing, ensure that nitrogen
is used during the welding or brazing process. The joint
must be accessible and serviceable.
CAUTION
• Tighten the flare nut at the specified torque. If the flare
nut is over-tightened, it may break to cause leakage of
refrigerant gas.
Step 2.8 Fixing the installation plate
You can install the indoor unit on a wall, window frame, or
gypsum board.
WARNING
• Make sure that the wall, window frame, or gypsum board
can withstand the weight of the indoor unit. If you install
the indoor unit in a place where it is not strong enough
to withstand the unit's weight, the unit could fall and
cause injury.
When fixing the indoor unit on a wall
Fix the installation plate to the wall giving attention to the
weight of the indoor unit.
NOTE
• If you mount the plate to a concrete wall using plastic
anchors, make sure that gaps between the wall and the
plate, created by projected anchor, is less than 20 mm.
When fixing the indoor unit on a window frame
1. Determine the positions of the wooden uprights to be
attached to the window frame.
2. Attach the wooden uprights to the window frame giving
attention to the weight of the indoor unit.
3. Attach the installation plate to the wooden upright using
tapping screws.
When fixing the indoor unit on a gypsum board
1. Use stud finder to find out locations of the studs.
2. Fix the plate hanger on two studs.
CAUTION
• If you fix the indoor unit on a gypsum board, use only
specified anchor bolts on reference positions. Otherwise,
the gypsum surrounding the joints may crumble over
time and cause the screws to be loosened and stripped.
This may lead to physical injury or equipment damage.
• Search for other spots if there are less than two studs,
or the distance between the studs are different from the
plate hanger.
• Fix the installation plate without inclining to one side.
Wall
20 mm
Plastic anchor
(Unit : mm)
Model A B C D
**020/025/
035*******
30 96 38 30
**050/068******* 38 126 70 38
Pipe bundle hole: Ø 65 mm
40
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Installation
Step 3.1 Performing the gas leak tests
1. Before inspecting the leakage, use a torque wrench
to close the cap for the stop valve. (Comply with a
tightening torque for each size of the diameter, and
tighten the cap firmly to prevent any leakage.)
2. Insert inert gas into the pipes connected to indoor and
outdoor units.
3. Test leakage on the connection parts of the indoor and
outdoor units with soap lather or liquid.
Step 3.2 Performing final check and
trial operation
1. Check the following:
• Strength of the installation site
• Tightness of pipe connection to detect gas leak
• Electric wiring connection
• Heat-resistant insulation of the pipe
• Drainage
• Grounding conductor connection
• Correct operation (Take the following steps.)
2. Press the (Power) button on the remote control to
check the following:
• The indicator on the indoor unit lights up.
• The airflow blade opens and the fan gears up for
operation.
3. Press the (Mode) button to select Cool or Heat mode.
Then take the following sub-steps:
• In Cool mode, use the Temperature button to set the
set temperature to 16 °C.
• In Heat mode, use the Temperature button to set the
set temperature to 30 °C.
• Check whether, approximately 3 to 5 minutes later,
the outdoor unit starts, and a cool or warm air blows
out.
• After 12 minutes of stationary condition, check the
indoor unit air treatment.
4. Press the (Air swing) button to check whether the
airflow blades work properly.
5. Press the (Power) button to stop the trial operation.
Installation Inspection
Outer diameter
(mm)
Tightening torque
Bodycap(N•m) Chargingportcap(N•m)
ø 6.35 20 to 25
10 to 12
ø 9.52 20 to 25
ø 12.70 25 to 30
ø 15.88 30 to 35
(1N•m=10kgf•cm)
Tightening torque for body cap
(Refer to the table)
Charging core
Spindle
R-22: Thread of the screw - 7/16-2OUNF
R-410A: Thread of the screw -1/2-2OUNF
Tightening torque for charging port cap (Refer to the table)
Test parts for the
indoor unit
A(Liquid)
B(Gas)
41
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Installation
Pumping down refrigerant
WARNING
• After installing the product, be sure to perform leak tests
on the piping connections. After pumping down refrigerant
to inspect or relocate the outdoor unit, be sure to stop the
compressor and then remove the connected pipes.
– Do not operate the compressor while a valve is
open due to refrigerant leakage from a pipe or an
unconnected or incorrectly connected pipe. Failure
to do so may cause air to flow into the compressor
and too a high pressure to develop inside the
refrigerant circuit, leading to an explosion or product
malfunction.
Pump-down is an operation intended to collect all the
system refrigerant in the outdoor unit.
This operation must be carried out before disconnecting
the refrigerant pipe in order to avoid refrigerant loss to the
atmosphere.
1. Turn the system on in cooling with fan operating at high
velocity and then let the compressor run for more than 5
minutes. (Compressor will immediately start, provided 3
minutes have elapsed since the last stop.)
2. Release the valve caps on High and Low pressure side.
3. Use L-wrench to close the valve on the high pressure
side.
4. After approximately 2 minute, close the valve on the low
pressure side.
5. Stop operation of the air conditioner by pressing the
(Power) button on the indoor unit or remote control.
6. Disconnect the pipes.
Pumping down for removing the product
1. Hold down the (Power) button on the indoor unit for
5 seconds. Beep sounds immediately to indicate that the
product is ready for pump down procedure.
2. Let the compressor run for more than 5 minutes.
3. Release the valve caps on High and Low pressure side.
4. Use L-wrench to close the valve on the high pressure
side.
5. After approximately 1 minute, close the valve on the low
pressure side.
6. Stop operation of the air conditioner by pressing the
(Power) button on the indoor unit or remote control.
7. Disconnect the pipes.
1
2
Liquid service port
<High pressure>
Gas service port
<Low pressure>
Off
1 minute
A(Liquid)
B(Gas)
42
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Installation
(Wried remote controller, central remote controller etc.)
1. Turn the power off and take off the front panel of
the indoor unit.
2. Take off the Cover PCB.
3. Attach the Sub PCB to the right side of the Panel-
frame.
Case Sub PCB
4. Find the PCB wire, and connect the wire to the Sub
PCB as seen in the picture.
5. Connect the wire(remote controller, central
remote controller etc) to the Sub PCB.
6. Assemble the Cover PCB and the front panel.
NOTE
• The Sub PCB is attached to be controlled by the wired
remote controller and central controller..
Sub PCB installation(optional)
DB68-08291A-00
QUESTIONS OR COMMENTS?
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