Samsung AC777MNADCH User manual

Air conditioner
User manual/Installation manual
AC 777 MNADCH / AC 777 MNTDCH
ŷThank you for purchasing this Samsung air conditioner.
ŷBefore operating this unit, please read this Installation manual carefully and retain it for future
reference.

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Contents
Safety Information 4
Safety Information 4
At a Glance 12
Indoor Unit Overview 12
Remote Control Overview 14
Replacing batteries
Storing the remote control
Basic Operation 16
Operation Modes 16
Auto
Cool
Dry
Fan
Heat
Turning the air conditioner on
Selecting the operation mode
Adjusting the temperature
Selecting the fan speed
Selecting air flow direction
Advanced Operation 20
Setting the On or Off timer 20
Setting the On timer
Setting the Off timer
Setting the good’sleep Function 22
Using the good’sleep Function 23
Using the Turbo Function 24
Controlling Indoor Units 25
Cleaning and Maintenance 26
Cleaning the Air Conditioner 26
Cleaning the exterior
Cleaning the filter
Maintaining the Air Conditioner 29

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Appendix 31
Troubleshooting 31
Operation Ranges 35
Installation 36
Safety Information on Installation 36
Preparation 38
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 Performing the gas leak test
Step 1.5 Insulating the refrigerant pipes
Indoor Unit Installation 41
Step 2.1 Disassembling the cover panel
Step 2.2 Disassembling the installation plate
Step 2.3 Connecting the power and communication cables (assembly cable)
Step 2.4 Optional: Extending the power cable
Step 2.5 Installing and connecting the drain hose
Step 2.6 Optional: Extending the drain hose
Step 2.7 Optional: Changing the direction of the drain hose
Step 2.8 Installing and connecting the assembly pipes to the refrigerant pipes (assembly pipe)
Step 2.9 Shortening or extending the refrigerant pipes (assembly pipe)
Step 2.10 Fixing the installation plate
Step 2.11 Fixing the indoor unit to the installation plate
Step 2.12 Assembling the cover panel
Setting an indoor unit address and installation option 50
Troubleshooting 58

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Safety Information
Safety Information
WARNING
State of California Proposition 65 Warning (US only)
This product contains chemicals known to the State of California to
cause cancer and birth defects or other reproductive harm.
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.

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Safety Information
ŷ Extending the power cord may result in electric shock or fire.
ŷ Do not use an electric transformer. This may result in electric
shock or fire.
ŷ 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.
ŷ 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.
ŷ 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.
ŷ 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.
ŷ 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.
ŷ 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.
ŷ Failing to do so may result in electric shock, fire, and
explosion.

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Safety Information
ŷ Make sure to use a socket-outlet with ground.
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.
ŷ 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.
ŷ 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.
ŷ 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.
Safety Information

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Safety Information
ŷ 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.
ŷ 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.
ŷ 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.
ŷ 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.
ŷ Do not use a ventilating fan.
ŷ A spark may result in an explosion or fire.
To reinstall the air conditioner, please contact your nearest
service centre.
ŷ Failing to do so may result in problems with the product,
water leakage, electric shock, or fire.
ŷ 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 Information
ŷ 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.
ŷ In the event of a service issue, please refer to the
troubleshooting guide of the relevant supporting technical
manuals. It is recommended that a skilled service technician
be contacted for support. Should urgent support be required
then, using the information provided, contact the local
Samsung office via email or telephone so that support can
be initiated via our approved service centres (ASC'S) within
24hrs.
Do not touch the circuit breaker with wet hands.
ŷ This may result in electric shock.
Do not turn the air conditioner off with the circuit breaker
while it is operating.
ŷ 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.
ŷ 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.
ŷ 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.
ŷ Take special care that children do not injure themselves by
Safety Information

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Safety Information
inserting their fingers into the product.
Do not strike or pull the air conditioner with excessive force.
ŷ 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.
ŷ 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.
ŷ 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.
ŷ Failing to do so may result in electric shock or fire.
Do not attempt to repair, disassemble, or modify the appliance
yourself.
ŷ Do not use any fuse (such as cooper, steel wire, etc.) other
than the standard fuse.
ŷ 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.
ŷ 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.
ŷ Failing to do so may result in injury, death or property
damage.

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Safety Information
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.
ŷ This may result in electric shock, fire, problems with the
product, or injury.
Do not operate the appliance with wet hands.
ŷ This may result in electric shock.
Do not spray volatile material such as insecticide onto the
surface of the appliance.
ŷ 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.
ŷ 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.
ŷ 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.
ŷ 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.
ŷ This may result in harm to humans, animals or plants.
This appliance is not intended for use by persons (including
Safety Information

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Safety Information
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.
ŷ 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.
ŷ 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.
ŷ 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.
ŷ For cleaning inside the appliance, contact your nearest
service centre.
ŷ When cleaning the filter, refer to the descriptions in the
‘Cleaning at a Glance’ section.
ŷ Failing to do so may result in damage, electric shock or fire.

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At a Glance
The actual product may differ slightly from the image depicted below.
Indoor Unit Overview
AC777MNADCH
Main parts
Air lter
Air ow blade
(up and down) Air ow blade
(left and right)
Air intake
Room
temperature
sensor
Display
Power button/
Remote controller receiver
Turbo indicator
Timer/Auto clean indicator
Power indicator

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At a Glance
AC777MNTDCH
Main parts
Air lter
(under the panel)
Air  ow blade
(up and down)
Blade pin lever
Air intake
Air  ow blade
(left and right)
Room
temperature
sensor
Display
Turbo indicator
Timer/Auto clean indicator
Power indicator
Power button
Remote controller receiver

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At a Glance
Remote Control Overview
01
05
06
07
08
09
16
17
18
20
21
02
03
04
11
12
13 19
14
15
10
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 Vertcal air swing indicator
09 Horizontal air swing indicator
NOTE
ŷ This function is not available in this model.
10 Settings indicator
11 Power button
12 Temperature button
13 Options button
14 Timer button
15 Direction button/Selection button
16 Vertical air swing button
17 Mode button
18 Fan speed button
19 Horizontal air swing button
NOTE
ŷ This function is not available in this model.
20 Settings button
21 SET button
NOTE
ŷ The air conditioner may not be operated by
the remote control if the controller is placed
close to strong light such as a fluorescent
lamp or neon sign. In this case, use the
remote control right in front of the remote
control receiver of the indoor unit.
ŷ If other electrical products are operated by the
remote control, call your nearest service center.
ŷ To silence the beep sound, press the
Settings ĺ<, > or Settings ĺ(Beep)
blinking ĺSET button. When you press
the Settings ĺ<, > or Settings ĺ(Beep)
blinking ĺSET button again, the beep
sound will be active again.

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At a Glance
Replacing batteries
When the icon appears in the remote control
display, replace the batteries with new ones. Two
1.5V AAA type batteries are required.
two 1.5V AAA type batteries
Correct disposal of batteries in this product
(Applicable in countries with separate collection systems)
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.
Storing the remote control
If the remote control will not be used for an
extended period of time, store it in the remote
control holder with the batteries removed.
CAUTION
ŷ Make sure that water does not
come into the remote control.

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Basic Operation
Auto
In Auto mode, the air conditioner will automatically adjust
the temperature and fan speed to maintain your fresh
environment.
ŷ When the indoor temperature is too high, the powerful
cool breeze is generated and when the indoor room
becomes cool enough, the soft breeze is generated.
Cool
The Cool mode is frequently used and you can freely control
the temperature, fan speed, and air flow direction in Cool
mode.
ŷ When you select the Heat mode while the Cool mode is on,
the Cool mode is cancelled.
Dry
The air conditioner in Dry mode acts like a dehumidifier by
removing moisture from the indoor air. The Dry mode will
provide you with fresh air even on a rainy day.
Fan
The Fan mode provides you with a breeze just like a fan to
make fresh environment for you.
Operation Modes

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Basic Operation
Heat
In Heat mode, you can warm your room even in fall and
winter.
ŷ The fan may not commence immediately to avoid
generating a cold breeze.
ŷ In Heat mode, defrost operation may be performed to
remove the frost formed on the outdoor unit. (When the
frost is removed by the defrost operation in Heat mode,
steam is generated from the outdoor unit.)
ŷ If you stop operating the air conditioner after heating
operation, the fan will operate for some time to cool the
indoor unit.
ŷ When you select the Cool mode while the Heat mode is on,
the Heat mode is cancelled.
NOTE
ŷ When the outdoor temperature is relatively low and the
humidity is relatively high in Heat mode, the outdoor unit's
heating capacity may decrease due to the frost formed on
the outdoor heat exchanger. The defrost operation removes
the frost formed on the heat exchanger of the outdoor unit
for 5 to 12 minutes. During the defrost operation, the indoor
unit does not generate breeze in order to prevent cold breeze
blowing out.
–The interval between defrost operations can decrease
depending on the amount of the frost formed on the
outdoor unit.
–The interval between defrost operations can also decrease
depending on the humidity level in the air.

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Basic Operation
Turning the air conditioner on
Press the button to operate the air conditioner.
Selecting the operation mode
Press the button to select an operation mode.
Ź Ź Ź
Ź
Adjusting the temperature
Press the button to adjust the temperature.
Mode Temperature control
Auto/Cool/
Dry
Adjust by 1 °C (1 °F) between 18 °C (65 °F)
and 30 °C (86 °F).
Heat Adjust by 1 °C (1 °F) between 16 °C (61 °F)
and 30 °C (86 °F).
Fan Temperature cannot be adjusted.
Selecting the fan speed
Press the button to adjust the fan speed.
Mode Available fan speeds
Auto/Dry (Auto)
Cool/Heat (Auto), (Low), (Med), (High)
Fan (Low), (Med), (High)
Operation Modes

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Basic Operation
Selecting air flow direction
Keep the air flow in a constant direction by stopping the
movements of the vertical and horizontal air flow blades.
In operation Ź
NOTE
ŷ If you adjust the vertical air flow blade manually, it may not
close completely when you turn off the air conditioner.
Horizontal air flow (manual)
Keep the horizontal air flow in a constant direction by
changing the directions of the horizontal air flow blades
manually.
NOTE
ŷ Although you press the button, this function does not
work.
CAUTION
ŷ 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.
Remote control display

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Advanced Operation
Setting the On timer
When the air conditioner is turned off:
1 Press the button to select (On).
ŷ The (On) indicator will keep blinking and you can set the time.
2 Press the or button to set the time.
ŷ You can set the time in half hour intervals from
30minutes (0.5 on the display) to 3in hour intervals
from 3 to 24 hours.
ŷ The time can be set from minimum 30 minutes to
maximum 24hours.
3 Press the button to complete the On timer setting.
ŷ The (On) indicator and the set time of the timer will be
displayed on the remote control display.
ŷ On timer setting will be cancelled if you don't press the
button within 10seconds after setting the time.
Therefore, check for the (On) indicator on the remote
control display.
Cancel
Press the button Źselect (On) Źpress
the or button Źset the timer to
Źpress the button
Remote control display
Additional options available in the On timer
Select the mode in the following order: (Auto) Ź(Cool) Ź(Dry) Ź(Fan) and Ź(Heat).
You can adjust the temperature after timer setting is completed.
Temperature adjustment is only available in Auto, Cool, Dry, and Heat modes. In Fan
mode, the temperature cannot be adjusted.
NOTE
ŷ When On timer setting is completed, the setting will be displayed for 3 seconds, and then only the
(On) indicator will remain on the remote control display.
ŷ You cannot set the Fan speed when setting the On timer.
The actual product may differ slightly from the image depicted below.
Setting the On or Off timer