AQ25UGQN - Air-conditioner SAMSUNG - Free user manual and instructions

USER MANUAL AQ25UGQN SAMSUNG

Air Conditioner user & installation manual

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DB98-33330A-08

SAMSUNG

Features of your new air conditioner

Cool Summer Offer

On those hot sweltering summer days and long restless nights, there is no better escape from the heat than the cool comforts of home. Your new air conditioner brings an end to exhausting hot summer days and lets you rest. Beat the heat with your own air conditioner this summer.

Look for Everywhere

The elegant and harmonious design gives priority to the esthetics of your space and complements any of your existing interior décor. With its soft color and rounded-edge shape, the new air conditioner adds class to any room. Enjoy what your air conditioner offers both functionally and esthetically.

good'sleep function

good'sleep function allows you to set a comfortable sleep temperature while saving energy and having sound sleep.

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.

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Contents

Preparation

Safety precautions 4

Checking before use 10

Basic function

Checking the name of the parts 11

Checking the remote controller 12

Basic function....14

Adjusting the air flow direction.... 16

Advanced function

Using the Turbo function.... 16

good'sleep mode....17

Setting the On/Off timer 18

Using the Smart Saver function.... 19

Using the Auto Clean function 20

Others

Cleaning the air conditioner....21

Maintaining the air conditioner....23

Troubleshooting 24

Installation

Safety precautions 26

Choosing the installation location 27

Accessories 30

Fixing the installation plate.... 32

Connecting the assembly cable 33

Installing and connecting the assembly pipe of the indoor unit 35

Evacuating the indoor unit 36

Cutting or extending the pipe 36

Installing and connecting the drain hose of the indoor unit 37

Changing direction of the drain hose 39

Installing and connecting the drain hose of the outdoor unit 40

Evacuating the connected pipes....40

Performing the gas leak tests....42

Fixing the indoor unit in place....43

Fixing the outdoor unit in place 43

Final check and trial operation....44

Pump down procedure (when removing the product) 44

How to connect your extended power cables.... 45

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Safety precautions

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 center or find help and information online at www.samsung.com.

Important safety symbols and precautions:

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. Cut-off the power supply.
	Do NOT attempt. Do NOT disassemble.
	Make sure the machine is grounded to prevent electric shock.

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. It may result in electric shock or fire.
▶ If the voltage/frequency/rated current condition is different, it may cause fire.

The installation of this appliance must be performed by a qualified technician or service company.

▶ Failing to do so may result in electric shock, fire, explosion, problems with the product, or injury and may also void warranty on the installed product.

Install a 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, problems with the product.

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, and explosion.

▶ Make sure to use a socket-outlet with ground.

FOR INSTALLATION

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 draining 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 draining hose so that draining is performed correctly.

The water generated during the heating operation 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 center.

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 precautions

FOR POWER SUPPLY

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 center.

▶ 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 center.

▶ 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 center.

▶ 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 the salt in the air, please contact your nearest service center.

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 insert your fingers or foreign substances into the outlet when the air conditioner is operating.

▶ Take special care that children do not injure themselves by inserting their fingers into the product.

Do not touch the air flow blade 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 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.

FOR USING

WARNING

Do not place an object near the outdoor unit that allows children to climb onto the machine.

This may result in children seriously injuring themselves.

Do not use this air conditioner for long periods of time in badly ventilated locations or near infirm people.

Since this may be dangerous due to a lack of oxygen, Open a window at least once an hour.

If any foreign substance such as water has entered the appliance, cut-off the power supply and contact the nearest service center.

▶ 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.

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Safety precautions

FOR USING

CAUTION

Do not place objects or devices under the indoor unit.

▶ Water dripping from the indoor unit may result in fire or property damage. (example electrical appliances)

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 from 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, 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 play with the appliance.

FOR CLEANING

WARNING

Do not clean the appliance by spraying water directly onto it. Do not use benzene, thinner or alcohol to clean the appliance.

This may result in discoloration, 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.

FOR CLEANING

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 center.

Do not clean the inside of the air conditioner by yourself.

For cleaning inside the appliance, contact your nearest service center.

When cleaning the internal filter, refer to the descriptions in the 'Cleaning the air conditioner' section.

▶ Failure to do may result in damage, electric shock or fire.

Checking before use

Operation ranges

The table below indicates the temperature and humidity ranges the air conditioner can be operated within. Refer to the table for efficient use.

Mode Indoor temperature Outdoor temperature Indoor humidity Remark
Cooling	16 °C~32 °C 15 °C~52 °C Relative humidity 80% or less			AS**U**AQ**U**AR**JC/KC**AR**JP/KP**
Heating	27 °C or less -5 °C~24 °C-			AQ**U**AR**JP/KP**
Dry	18 °C~32 °C 15 °C~52 °C-			AS**U**AQ**U**AR**JC/KC**AR**JP/KP**

▶ If the air conditioner operates in cooling mode for long period of time in high humidity area, dew may be formed.
If the outdoor temperature goes down to -5^ , heating capacity may decrease as much as 60% 70% of specified capacity according to the using conditions(AQ**U**, AR** JP/KP**).

Maintaining your air conditioner

Internal protections via the unit control system

This internal protection operates if an internal fault occurs in the air conditioner.

Type Description
Against cold air(AQ**U**,AR**JP/KP**)	The internal fan will be off to prevent cold air when the heat pump is heating.
Defrost cycle(AQ**U**,AR**JP/KP**)	The internal fan will be off to defrost ice when the heat pump is heating.Vertical air flow blade will be closed during defrost cycle and it will open again during heating operation after defrost cycle.
Protect compressor	The air conditioner does not start operating immediately to help protect the compressor of the outdoor unit after it has been started.

- If the heat pump is operating in Heat mode, Defrost cycle is actuated to help remove frost from an outdoor unit that may have deposited at low temperatures. The internal fan is switched off automatically and restarted only after the defrost cycle is completed.

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Checking the name of the parts

Your air conditioner may slightly look different from illustration shown below depending on your model.

Main parts

Room temperature sensor

Air filter(under the panel) Air intake Air flow blade (up and down) Blade pin lever Air flow blade (left and right)

Display

Remote Control Receiver Operation indicator Timer/Auto Clean indicator Smart Saver indicator Power button

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Checking the remote controller

• Point the remote controller towards the remote controller receiver of the indoor unit.
• When you properly press the button on the remote controller, you will hear beep sound from the indoor unit and a transmit indicator(💡) appears on the remote controller display.

Remote controller buttons

Remote controller display Smart Saver Less energy usage makes your space cool between the temperature range of 24°C~30°C. Turbo TURBO Operate in auto fan speed to cool quickly. Quiet The Quiet function is not available for this model. Temp + - Increase/Decrease the temperature by 1°C. good' sleep Set the good's sleep mode on. On Timer Set the On Timer on. Off Timer Set the Off Timer on. Time Up/Time Down Adjust the time for timer/good's sleep This button doesn't have any function. Power Turn on/off the air conditioner. Mode Set one of the 5 operating modes (see pages 14-15 for instructions). Auto Clean Auto clean function – Dry inside of the indoor unit to get rid of odor. Air swing Activate/Deactivate air flow blade movement automatically up and down. Fan Adjust how much air flows through the air conditioner with the 4 different fan speeds such as Auto/Low/Medium/High. Set Set the timer/good's sleep Cancel Cancel the timer/good's sleep

• Make sure that the water does not get to the remote controller.

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Remote controller display

Auto Cool Dry Fan Heat Turbo indicator Quiet indicator Smart Saver indicator SET 0.8 °C HR On Timer indicator Off Timer indicator good' sleep indicator Operation mode indicator Low battery indicator Transmit indicator Air swing indicator Fan speed indicator Auto (Turbo) Low Medium High

• The Quiet function is displayed on the remote controller display but not supported in this model.
• Heat mode is only displayed on the remote controller display but not supported in (AS**U**,AR**JC/KC**) model.

Battery changing time

When the battery is exhausted, (☐) will be displayed in the remote controller display. When the icon appears, change the batteries. The remote controller requires two 1.5V AAA type batteries.

Storing the remote controller

When you do not use the remote controller for long time, remove the batteries from the remote controller and store it.

Inserting the batteries

1. Push the lever as arrow indicates on the rear side of the remote controller and pull up.

2. Insert two AAA batteries. Check and match the "+" and "-" signs accordingly. Make sure you have inserted the batteries in correct position.

3. Close the cover by place it back to its original position. You should hear click sound when the cover is locked properly.

The signal may not be received properly if electronic fluorescent lamps such as inverter fluorescent lamps are operating in the same space.
• If other electrical products operate by the remote controller, call your nearest contact center.

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.

If batteries are not properly disposed of, these substances can cause harm to human health or the environment. To protect natural resources and to promote material reuse, please separate batteries from other types of waste and recycle them through your local, free battery return system.

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Basic function

Basic operation is an operation mode that can be selected by pressing the Mode button.

Auto

In Auto mode, the air conditioner will automatically set the temperature and fan speed depending on the room temperature detected by the room temperature.

Cool

In Cool mode, the air conditioner will cool your room. You can adjust the temperature and the fan speed to feel cooler in hot season.

- If current outside temperature is much higher than the selected indoor temperature, it may take time to bring the inner temperature to the desired coolness.

Dry

The air conditioner in Dry mode acts like a dehumidifier by removing moisture from the indoor air.

Dry mode makes the air feel refreshing in a humid climate.

To activate the Dry mode, set temperature on the remote controller should be lower than indoor room temperature.

Fan

Fan mode can be selected to circulate your room. Fan mode will be helpful to refresh the stale air in your room.

Heat

The air conditioner heats as well as cools. Warm your room with this versatile appliance in the cold of winter.

• Fan may not operate for about 3\~5 minutes at the beginning to prevent any cold blasts while the air conditioner is warming up.
• Since the air conditioner heats the room by taking heat energy from outdoor air, the heating capacity may decrease when outdoor temperature is extremely low.
  Use an additional heating appliance in combination with the air conditioner if you feel the air conditioner heats insufficiently.

• Only Heating models have this function: AQU** Series, AR**JP/KP** series.

Press the button to turn on the air conditioner.

Press the Mode button to set the operating mode.

• Each time you press the Mode button, the mode will change in order of Auto, Cool, Dry, Fan and Heat.

graph LR
    A["Auto"] --> B["Cool"]
    B --> C["Dry"]
    C --> D["Fan"]
    D --> E["Heat"]
    style A fill:#f9f,stroke:#333
    style B fill:#ccf,stroke:#333
    style C fill:#cfc,stroke:#333
    style D fill:#fcc,stroke:#333
    style E fill:#cff,stroke:#333

Press the Fan button to set the desired fan speed.

Auto (Auto)
Cool
Dry
Fan
Heat

Press the + Temp - button to adjust the temperature.

Auto You can	adjust the desired temperature by 1°C within the range of 16°C~30°C.
Cool You can	adjust the desired temperature by 1°C within the range of 16°C~30°C.
Dry You can	adjust the desired temperature by 1°C within the range of 18°C~30°C.
Fan Temperature adjustment is not possible.
Heat You can	adjust the desired temperature by 1°C within the range of 16°C~30°C.

• Air flow can be adjusted manually.(see page 16 for instructions.)
• Dry mode is only available in the cooling mode.

Adjusting the air flow direction

Air flow can be directed to your desired position.

Vertical air flow

Air flow blades move up and down.

+ Temp — good' sleep Fan

Press the Vertical air swing(≡ button on the remote controller.

Air swing indicator will be on and air flow blades move up and down continuously to circulate the air.
▶ Press the Vertical air swing ( ≥slant button on the remote controller again, to keep the air flow direction in a constant position.

Auto SET 24°C

Horizontal air flow

Make sure one of the blade pin lever that stick out of the air flow blades are not broken.

Blade pin lever

Move the blade pin lever left or right to keep the air flow direction in a constant position you prefer.

To avoid the risk of personal injuries, adjusting the horizontal air flow direction should only be done when the unit is turned off completely. There is a potential risk of personal injury when the unit is mishandled.

Using the Turbo function

Turbo function will be helpful to cool your room quickly and effectively.

Turbo Quiet Auto Clean

Press the Turbo button on the remote controller during cool mode.

▶ Turbo indicator appears on the remote controller display and the air conditioner operates in Turbo function fo 30 minutes.

Cancel Press the Turbo button on again.

Cool °C *

• Turbo function is only available in Cool mode. • If you press the Mode button while the Turbo function is on, it will cancel the function. • Temperature/Fan speed cannot be adjusted while using this function.

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good'sleep mode

For a comfortable sleep, the air conditioner will operate it Fall asleep ▷ Sound sleep ▷ Wake up from good'sleep mode.

+ Temp — good' sleep Fan On Timer Time Up Set Off Timer Time Down Cancel

Cool 8.0 HR OFF

When the air conditioner is on and in cool/heat mode

1. Press the good'sleep button on the remote controller.

▶ goindicate appears and Off timer indicator starts blinking on the remote controller display.

2. Press the Time Up or Time Down button to set the time.

▶ You can set the time in half hourly unit from 30 minutes \~ 3 hours and hour unit from 3 hours \~ 12 hours.
▶ Operating hour can be set from minimum 30 minutes to maximum 12 hours.
▶ Default operation hour is set to 8 hours.

3. Press the Set button to active it on.

▶ Off timer indicator stops blinking and reserved time will be displayed for 3 seconds. Then the air conditioner operates in good'sleep mode.
If you don't press Set button within 10 seconds after pressing the good'sleep Time Up or Time Down button, the air conditioner will return to previous status. Check Off timer indicator on the remote controller display and 📍 indicator on the indoor unit.

Press the Cancel button.Cancel
	You can set the desired temperature by 1 °C in the range of 16 °C~30 °C.
	Fan speed will be adjusted automatically according to thegood'sleepmode.However, If you selectgood'sleepmode while heating operation is on,you can adjust fan speed.
	When the good'sleepIn Cool mode: Air flow direction will be adjusted automatically.In Heat mode: Adjusting air flow direction is available.

Temperature and fan speed changes ing order sleep

• Fall asleep: Eases you into sleep by dropping the temperature.
• Sound sleep: Relaxes your body and raises your temperature slightly.
- Wake up frongood'sleepmode: Allows you to wake up from comfortable intermittent air and it makes you feel refreshed.

• Set Off timer in good'sleep mode over 5 hours. You fell disturbed sleep if the good'sleep is set too short or long because the default is set to 8-hour-operation.
• If the good'sleep mode is set less than 4 hours, the operation will stop at the same time. If the good'sleep mode is set over 5 hours, it will run as Wake up stage from the last one hour before it stops.
• Recommended set temperature is between 25 °C\~27 °C for cooling and 21 °C\~23 °C for heating.

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Setting the On/Off timer

You can set the air conditioner to turn on/off automatically at desired time.

Setting On timer while the air conditioner is off / Off timer while the air conditioner is on

Setting On timer

On Timer Time Up Set Off Timer Time Down Cancel

ON

1. Press the On Timer/Off Timer button.

▶ On/Off timer indicator will blink on the remote controller display.

2. Press the Time Up or Time Down button to set the time.

▶ You can set the time in half hourly unit from 30 minutes \~ 3 hours and hour unit from 3 hours \~ 24 hours.
▶ Operating hour can be set from minimum 30 minutes to maximum 24 hours.

3. Press the Set button to active it on.

▶ On timer indicator stops blinking and reserved time will be displayed for 3 seconds.
If you don't press Set button within 10 seconds after selecting the time the air conditioner will return to previous status. Check On timer or Off timer indicator on the remote controller display and 📋 indicator on the indoor unit.

Setting Off timer

On Timer Time Up Set Off Time Time Down Cancel

Auto SET 24°C OFF

Press the Cancel button.Cancel

Additional options available in On/Off timer mode (When the remote controller is on)
Mode	You can select from Auto/Cool/Dry/Fan/Heat.
	You can adjust the temperature in Auto/Cool/Dry/Heat mode.
	You can adjust the fan speed in Cool/Fan/Heat mode.

• Only the latest setting timer will be applied between the On Timer / Off Timer and good'sleep functions.
  • After setting the timer, the set time will be displayed for 3 seconds before it disappears.
• If Timer function is used in Heating mode, Air conditioner work into former mode. (AS**Series, AR**JC/KC Series,)

Setting the On/Off timer

Combining On Timer and Off Timer
If the air conditioner is on If the air conditioner is off
Preset time on On timer is longer than Off timerEx) On timer: 3 hours, Off timer: 1 hour- The air conditioner will operate the Off timer after 1 hour from the moment you have set the timer.Your air conditioner will turn on after 2 hours.	Preset time on On timer is shorter than Off timerEx) On timer: 3 hours, Off timer: 5 hours- The air conditioner will operate On timer after 3 hours from the moment you have set the timer.Your air conditioner will remain on for 2 hours and then turn off automatically.

• On timer and Off timer setting time should be different from each other.
• Press the Cancel button on the remote controller while timer combination is on. Both of the On and Off timer will be canceled and the indicator will disappear.

Using the Smart Saver function

This function will set the temperature range limit to help you save energy while the air conditioner is operating in Cool mode.

Smart Saver Mode Turbo Quiet Auto Clean

Cool SET 24℃

Press the Smart Saver button on the remote controller while the air conditioner is operating in Cool mode.

▶ Smart Saver indicator and air swing indicator appears automatically on the remote controller display.
The air flow blades move up and down.
If the current set temperature is lower than 24^ C, it will automatically raise to 24^ C.

Press the Smart Saver button on again.Cancel

• Smart Saver function is only available in Cool mode.
- When Smart Saver function is activated, temperature range will be limited to 24°C\~30°C.
- If the desired temperature is lower than 24°C, turn off the Smart Saver function by pressing the Smart Saver button again.
• Temperature/Fan speed can also be adjusted (see page 15 for instructions).
• Air flow can be adjusted manually (see page 16 for instructions).
- If you press the Mode button while the Smart Saver function is on, it will cancel the function.

Using the Auto Clean function

Auto clean function will minimise the moisture inside of the indoor unit. Activate this function to help provide you with clean air.

Press the Auto Clean button.

Smart Saver Mode Turbo Quiet Auto Chain

When the air conditioner is turned off,

The Auto clean indicator on the indoor unit display appears and the Auto clean function runs.

When the air conditioner is turned on,

▶ After stopping the air conditioner operation, the Auto clean indicator on the indoor unit display appears and the Auto clean function runs.

graph TD
    A["Weather Icon"] --> B["Time Icon"]
    B --> C["Navigation Icon"]

※ Auto Clean time can vary, depending on the previously used mode.

Auto(cool), Cool, Dry mode: approximately 30 minutes. Auto(heat), Heat, Fan mode: approximately 15 minutes.

Cancel Press the Auto clean button once again.

• During the auto clean function, indoor fan will continue to run and air flow blade will remain open to expel ambient air.
  • lighting in Auto clean mode

Cleaning the air conditioner

CAUTION

Make sure to turn off the power of the indoor unit and cut-off the power supply before cleaning the air conditioner.

Cleaning the indoor unit

▶ Wipe the surface of the unit with a slightly wet or dry cloth when needed.
Remove the dust accumulated in the gap of the product with a soft brush.

Contact the service center when you clean the indoor unit heat exchanger because it needs to be disassembled.

Illustration of a hand cleaning a large air conditioner cover (no text or symbols)

CAUTION

• Do not clean the display using alkaline detergent.
- Do not use sulfuric acid, hydrochloric acid, organic solvents (such as thinner, kerosene and acetone etc.) to clean the surface of the product or put any stickers on it. They may damage the surface of the air conditioner.

Cleaning the outdoor unit heat exchanger

▶ When dust accumulates on the heat exchanger, it may decrease cooling performance. Therefore, clean it regularly.
▶ Spray water to clean the dust.

If it is difficult to clean the outdoor unit heat exchanger on your own, contact service center.

CAUTION

- Be careful with the sharp edges on the outdoor unit heat exchanger.

Exterior view of a server rack unit with mesh grille and mounting feet (no visible text or symbols)

Heat exchanger
(Illustration may differ slightly depending on the models)

Opening the panel

Tightly grab top of the front panel and pull it down to open. Then slightly lift the panel up.

Illustration of a car air conditioner with hands cleaning the panel and airflow direction indicated by arrows (no text or symbols)

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Removing the Air filter

Grab the handle and lift it up. Then, pull the Air filter towards you and slide it down.

Illustration of a hand inserting a fan into an air conditioner unit, showing internal structure and airflow direction (no text or symbols)

Cleaning the air filter

Washable foam based air filter captures large particles from the air. The filter is cleaned with a vacuum or by hand washing.

graph TD
    A["Open the panel and put the Air filter out."] --> B["Clean the Air filter with a vacuum cleaner or soft brush. If dust is too heavy, rinse it with running water."]
    B --> C["Insert the Air filter back in its original position and close the front panel."]
    C --> D["Dry the Air filter in a ventilated area."]

• Clean the Air filter every 2 weeks. Cleaning term may differ depending on the usage and environmental conditions. In dusty area, clean it once a week.
• If the Air filter dries in a confined (or humid) area, odors may generate. If it occurs, re-clean and dry it in a well-ventilated area.

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Maintaining the air conditioner

If the air conditioner will not be used for an extended period of time, dry the air conditioner to maintain it in best condition.

1. Dry the air conditioner thoroughly by operating in Fan mode for 3 to 4 hours and cut-off the power supply. There may be internal damage if moisture is left in components.

2. Before using the air conditioner again, dry the inner components of the air conditioner again by running in Fan mode for 3 to 4 hours. This helps remove odors which may have generated from dampness.

Periodical checks

Refer to the following chart to maintain the air conditioner properly.

Type Description		Every 2 weeks	Every 3 months	Every 4 months	Once a year
Indoor unit	Clean the air filter (1)
	Clean the condensate drain pan (2)
	Thoroughly clean the heat exchanger (2)
	Clean the condensate drain pipe (2)
	Replace the remote controller batteries (1)
Outdoor unit	Clean the heat exchanger on the outside of the unit (2)
	Clean the heat exchanger on the inside of the unit (2)
	Clean the electric components with jets of air (2)
	Verify that all the electric components are firmly tightened (2)
	Clean the fan (2)
	Verify that all the fan assembly is firmly tightened (2)
	Clean the condensate drain pan (2)

: This check mark requires checking the indoor/outdoor unit periodically. Follow the description to maintain the air conditioner properly.

(1) The described operations should be performed more frequently if the area of installation is very dusty.
(2) These operations must always be performed by qualified personnel. For more detailed information, see the installation part in the manual.

Troubleshooting

Refer to the following chart if the air conditioner operates abnormally. This may save time and unnecessary expenses.

PROBLEM SOLUTION
The air conditioner does not work at all.	Check power status and then operate the air conditioner again.Plug in or switch on the circuit breaker and then operate the air conditioner again.Check if you have set the Off Timer. Operate the air conditioner again by pressing thePowerbutton.
The temperature adjustment is not working.	Check if you have selected Fan/Turbo mode. In these modes, desired temperature is set to auto and you cannot adjust the temperature.
Cool/Warm air does not come out of the air conditioner.	Check if the set temperature is higher(during Cool mode)/ lower(during Heat mode) than the current temperature. Press the Temp + or - button on the remote controller to change the set temperature.Check if the Air is blocked by dirt. If there is a lot of dust on the Air cooling(heating) performance may decrease. Clean them frequently.Check if the outdoor unit is covered or installed near the obstacle. Take the cover andtake the obstacle away.If you want to operate the air conditioner in the sunlight, cover the outdoor unit using curtains or etc.Check if the air conditioner is operating in Defrost mode. When the ice formed in winter or the outdoor temperature is too low, the air conditioner operates in Defrost mode automatically. In Defrost mode, indoor fan stops and cool air does not come out.If the doors or windows are open, it may cause bad cooling (heating) performance.Close the doors and windows.Check if the air conditioner has just been turned on after stopping cooling or heating operation. In this case, just a fan will run to protect the outdoor unit compressor.Check if the pipe length is too long. When the pipe length exceeds maximum allowable pipe length, cooling (heating) performance may decrease.
Air flow adjustment is not working.	Check if you have selectedgood'sleepmode. In this mode, you cannot adjust the air flow direction. (If thegood'sleepmode is operating in Heat mode, you can adjust the air flow direction.)
Fan speed adjustment is not working.	Check if you have selected Auto/Dry/Turbood'sleep mode. In these mode, fan speed is set to Auto and you cannot adjust the fan speed.
Remote controller is not working.	Check if your batteries are depleted.Make sure nothing is blocking your remote controller sensor.Check that there are strong lighting apparatus near the air conditioner. Strong light which comes from fluorescent bulbs or neon signs may interrupt the electric waves.
Timer function does not set.	Check if you press the Set button on the remote controller after you have set the time.
The indicator is blinking continuously.	Press the Power button or disconnect the power plug/switch off the auxiliary power switch.If the indicator is still blinking, contact the service center.
Odors permeate in the room during operation.	Check if the appliance is running in a smoky area. Ventilate the room or operate the air conditioner in Fan mode for 1~2 hours.(We do not use smelly components in the air conditioner.)Check the Drains have been cleared Regular Maintenance.
Error is indicated.	When an indoor unit indicator blinks, contact the nearest service center. Please ensure the error code is passed onto the service center when booking the service call.
Noise is generated.	Depending on the status of the air conditioner usage, noise can be heard when refrigerant flow movement changes. It is normal.
Smoke is generated from the outdoor unit.	If may not be a fire but it can be a steam generated by the defrost operation from outdoor heat exchanger during Heat mode in winter.
Water is dropping from the outdoor unit piping connection.	Water may be generated because of the temperature difference. It is normal.

Safety precautions

Carefully follow the precautions listed below because they are essential to guarantee the safety of the equipment.

• Always disconnect the air conditioner from the power supply before servicing it or accessing its internal components.
- Verify that installation and testing operations are performed by qualified personnel.
- Verify that the air conditioner is not installed in an easily accessible area.

General information

Carefully read the content of this manual before installing the air conditioner and store the manual in a safe place in order to be able to use it as reference after installation.
▶ For maximum safety, installers should always carefully read the following warnings.
▶ Store the operation and installation manual in a safe location and remember to hand it over to the new owner if the air conditioner is sold or transferred.
This manual explains how to install an indoor unit with a split system with two SAMSUNG units. The use of other types of units with different control systems may damage the units and invalidate the warranty. The manufacturer shall not be responsible for damages arising from the use of non compliant units.
This product has been determined to be in compliance with the Low Voltage Directive (2006/95/EC), and the Electromagnetic Compatibility Directive (2004/108/EC) of the European Union.
The manufacturer shall not be responsible for damage originating from unauthorized 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 unauthorized 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 controller(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 authorized centers or returned to the retailer so that it can be disposed of correctly and safely.

Installing 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 authorized 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.
▶ To help prevent injury when accidentally touching the indoor unit fan, install the indoor unit at least 2.5 m above the floor.
The air conditioner should be used only for the applications for which it has been designed: the indoor unit is not suitable to be installed in areas used for laundry.
Our units must be installed in compliance with the spaces indicated in the installation manual to ensure either accessibility from both sides or ability to perform routine maintenance and repairs. The units' components must be accessible and that can be disassembled in conditions of complete safety either for people or things.
For this reason, where it is not observed as indicated into the Installation Manual, the cost necessary to reach and repair the unit (in safety, as required by current regulations in force) with slings, trucks, scaffolding or any other means of elevation won't be considered in-warranty and charged to end user.

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.

Choosing the installation location

Indoor unit

▶ For Wi-Fi Air-conditioner installation, select indoor unit location near to wireless router.
In case Wi-Fi signal strength weakened, Smart APP may be disconnected depending on the Wi-Fi signal strength.
▶ Where airflow is not blocked.
▶ Where cool air can be distributed throughout the room.
▶ Install the refrigerant piping length and the height difference of both indoor and outdoor units as indicated in the installation diagram.
▶ Wall that prevents vibration and is strong enough to hold the product weight.
▶ Out of the direct sunlight.
▶ 1 m or more away from the TV or radio (to prevent the screen from being distorted or noise from being generated).
As far away as possible from the fluorescent and incandescent lights (so that the remote controller can be operated well).
▶ A place where the air filter can be replaced easily.
- Don't install directly above electronics equipment as leaking water may cause damage if not serviced. (eg. Computers, TV, etc).

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Choosing the installation location

Outdoor Unit

▶ Where it is not exposed to strong wind
▶ Well ventilated and dustless places
▶ Where possible keep out of sunlight and rain
▶ Where neighbors are not annoyed by operation sound or hot air
▶ Solid wall or support that prevents vibration and is strong enough to hold the product weight
▶ Where there is no risk of flammable gas leakage
▶ When installing the unit at a high place be sure to fix the unit legs
▶ 3 m or more away from the TV or radio (to prevent the screen from being distorted or noise from being generated)
▶ Install the unit horizontally
▶ Place where drained water does not become any problem.
▶ Place with no plants (especially climbing plants) and where small animal can not access.
▶ Outdoor unit should not be place higher than 2.4 m or directly under eaves for accessibility for service and OH&S reasons.

CAUTION

• Avoid the following places to prevent malfunction of the unit
• Where there is machine oil - Salty environment such as seaside areas
• Where sulfide gas exists - Other special atmosphere areas

Outdoor Unit Outer wall Indoor Unit Cut insulation to have rainwater drained CAUTION Make an U-trap(A) on the pipe (which is connected to the indoor unit) at outer wall and cut the bottom part of the insulation (about 10 mm) to prevent rainwater from getting inside through the insulation. However, be careful not to damage the pipe. 300 mm or more 125 mm or more You can select the direction of draining (left or right). Wrap the refrigerant pipes and the drain hose with the absorbent pad and vinyl tape. Refer to page 43 for further details. 'L' meters maximum total pipe length CAUTION 'L' m as maximum pipe length and 3 m as minimum pipe length. (It will reduce noise and vibration) 'H' meters maximum total pipe height Make at least one round: It will help reduce noise and vibration. Model Pipe Length Pipe Height Minimum Maximum Maximum **13/19** 3 15 **25** 3 20

* The appearance of the unit may be different from the diagram depending on the model.

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Space Requirements for Outdoor Unit

When installing 1 outdoor unit

◆ Figure Description

Top view Side view
Air intake Air outlet	Air outlet Air intake

• , Air flow direction.
(Unit: mm)

When the air outlet is opposite the wall

300 or more

◆ When the air outlet is towards the wall

1500 or more

When 3 sides of the outdoor unit are blocked by the wall

300 or more 150 or more 600 or more

◆ The upper part of the outdoor unit and the air outlet is towards the wall

2000 or more 1500 or more

◆ The upper part of the outdoor unit and the air outlet is opposite the wall

500 or more 300 or more

When the walls are blocking front and the rear side of the outdoor unit

300 or more 1500 or more

When installing more than 1 outdoor unit

(Unit: mm)

◆ When the air outlet is towards the wall

1500 or more

When 3 sides of the outdoor unit are blocked by the wall

300 or more

300 or more 600 or more 600 or more 600 or more

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Choosing the installation location

(Unit: mm)

When the walls are blocking front and the rear side of the outdoor units

600 or more 600 or more 300 or more 1500 or more

When front and rear side of the outdoor unit is towards the wall

1500 or more 600 or more 3000 or more 3000 or more 200 or more

When the upper part of the outdoor unit and the air outlet is opposite the wall

500 or more 300 or more 500 or more 300 or more

CAUTION

• If installation is done in inappropriate space, unit may generate sound and cause bad effect on the product.
• Installation must be done in level and in a place where vibration will not cause any effect.

Accessories

The following accessories are supplied with the air conditioner:

NOTE

• The number of each accessory is indicated in parentheses.

Accessories in the indoor unit case

Installation Plate (1)**13**	Installation Plate (1)**19/25**	Remote controller(1)	Remote ControlHolder (1)	Batteries forRemote controller(2)	User's & InstallationManual (1)

Accessories in the outdoor unit case

3-wire Power Cable (1)	3-wire Assembly Cable (1)AS**U**AS**JC/KC**	5-wire Assembly Cable (1)AQ13**AR13JP/KP	3-wire Assembly Cable (1)AQ19/25**AR19/25JP/KP	2-wire Assembly Cable (1)AQ19/25**AR19/25JP/KP
Drain Plug (1)AQ**U**AR**JP/KP**	Rubber Leg (4)

- The flare nuts are attached to the end of each pipe of an evaporator or a service port. Use the nuts when connecting the pipes.

• The wire assembly cable is optional. If it is not supplied, use the standard cable.

- The drain plug and rubber leg are only included when the air conditioner is supplied without the assembly pipe as seen in the picture below.

Optional accessories

Insulated Assembly Pipe,∅6.35 mm (1)	Insulated Assembly Pipe,∅12.70 mm (1)**13/19**	Insulated Assembly Pipe,∅15.88 mm (1)**25**	PET3 Foam Tube Insulation (1)	Vinyl Tapes (2) Putty 100 g (1)
Pipe Clamps A (3)	Pipe Clamps B (3) Cement Nails (6)		M4 x 25 Tapped Screws (6)	Drain Hose,length 2 m (1)

• If these accessories are supplied, they will be in the accessory box.

Tools required for installation

General Tools

• Vacuum Pump(Backward flowing prevention) • Manifold Gauge • Stud Finder

- Torque Wrench - Pipe Cutter - Reamer - Pipe Bender - Spirit Level

- Screw Driver - Spanner - Drill - L Wrench - Measuring Tape

Tools for test operations

- Thermometer

- Resistance Meter

- Electroscope

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Fixing the installation plate

You can select the direction of the drain hose depending on where you want to install the indoor unit. Therefore before fixing the installation plate to a wall or a window frame, you must determine the position of the 65 mm hole through which the cable, pipe and hose pass to connect the indoor unit to the outdoor unit.

When facing the wall, the pipe and cable can be connected from the:

• Right (A)
- Left (B)
- Underside_right (C)
- Rear_right or left (D)

Direction of pipe

A D C B D

• You can install the refrigerant pipe in the left/right/bottom, or the rear side of the indoor unit.

• 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.

• Determine the position of the pipe and drain hose hole as seen in the picture and drill the hole with an inner diameter of 65 mm so that it slants slightly downwards.

• Make sure to drill only one hole after choosing the direction of the pipe.

(Unit : mm) **13** Pipe hole (Ø65mm) 27 120 68 21

1. Fix the indoor unit.

If you fix the indoor unit on a wall

(1) Fix the installation plate to the wall giving attention to the weight of the indoor unit.

(Unit : mm) **19/25** Pipe hole (Ø65mm) 27 170 85 44 44 44

- 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.

Plastic Anchor < 20 mm Wall

If you fix 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.

If you fix 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.

• 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.

- Make sure that a wall can withstand the weight of the product. If you install the product in a place where it is not strong enough to withstand the product weight, the unit could fall and cause injury.

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Connecting the assembly cable

Cable specification

Model Power cable	Interconnection cable Type GL
AS13**,AR13JC/KC** 3G x 1.5 mm2, H05VV-F 5G x 1.5 mm2, H07RN-F 20 A
AS19**,AR19JC/KC** 3G x 2.5 mm2, H05VV-F 3G x 2.5 mm2, H07RN-F	25 A
AS25**,AR25JC/KC** 3G x 2.5 mm2, H05VV-F 3G x 2.5 mm2, H07RN-F
AQ13**,AR13JP/KP** 3G x 1.5 mm2, H05VV-F	5G, 1.5 mm H07RN-F	20 A
AQ19/25**,AR19/25JP/KP** 3G x 1.5 mm2, H05VV-F	3G, 2.5 mm H07RN-F2 x 0.75 mm H05RN-F	25 A

• Connect the power cable to the auxiliary circuit breaker. If every pole fails to connect to the power supply, it must be incorporated in a wire with a contact opening of ≥ 3 mm.
  • 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 designationIEC: 60245 IEC66/CENELEC: H07RN-F, 60245 IEC57 CENELEC: H05RN-F, IEC: 60227 IEC53/CENELEC: H05VV-F)

Connecting the cable

Electrical work

(1) For electrical and earth works, comply with the 'technical standards of electrical installations' and the the 'wiring regulations' of the Local wiring regulations.
(2) Tighten the terminal block screw to 1.2\~1.8 N·m (12\~18 kgf·cm).
(3) Precautions when connecting terminal blocks of the indoor unit

▶ Before connecting, make sure the connecting part of the terminal socket is facing upwards.

Upside down

The terminal socketis damaged.

There is no ring terminal to cover the wire.

There must be no space between the terminal and the screw when connected.

- Any remaining space may become a fire hazard due to overheating of the electrical contact.

The terminal socket is upside down.

Either the screw is not fitted properly or there is a space between the screw and the ring terminal.

- For the terminal block wiring, use a wire with a ring terminal socket only. Regular wires without a ring terminal socket may become a fire hazard due to overheating of the electrical contact during a wiring work.

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Connecting the assembly cable

* When you install the unit, make first refrigerant connections and then electrical connections. Connect the air conditioner to grounding system before performing the electrical connection. If unit is uninstalled, first disconnect electrical cables, then refrigerant connections.

If the outdoor unit is more than 5 meters away from the indoor unit, you must extend the cable. The maximum length of the cable is 15(**13/19***) / 20(**25***) meters.

1. Extend the assembly cable if necessary.

- Do not connect two or more different cables to extend the length. It may cause fire.

1. Open the cover panel.
2. Remove the screw securing the connector cover.
3. Pass the assembly cable through the rear of the indoor unit and connect the assembly cable to terminals. (Refer to the picture below)

• Each wire is labeled with the corresponding terminal number.

1. Pass the other end of the cable through the 65 mm hole in the wall.
2. Close the connector cover by tightening the screw carefully.
3. Close the cover panel.
4. Remove the terminal board cover on the side of the outdoor unit.
5. Connect the cables to the terminals as seen in the picture.

Indoor unit

Outdoor unit

Outdoor unit

AS13/19** AR13/19JC/KC** Indoor unit Outdoor u nit AS25** AR25JC/KC** Indoor u nit GroundWire (Green/Yellow) Outdoor u nit GroundWire (Green/Yellow)

AQ13/19** AR13/19JP/KP** Indoor unit Ground wire (Green/Yellow) Outdoor unit Ground wire (Green/Yellow)

AQ25** AR25JP/KP** Indoor unit Ground wire (Green/Yellow) Outdoor unit Ground wire (Green/Yellow)

• Also circular terminal must be matched with screw size in terminal block.
• After connecting the cables, make sure terminal numbers on the indoor/outdoor unit matches.
- Please ensure that Power & Communication cables are separated, they must not be in the same cable.

1. Connect the grounding conductor to the grounding terminals.
2. Close the terminal board cover by tightening the screw carefully.

• Connect the wires according to color codes, referring to the wiring diagram.
  • The power cable and the interconnection cable should be selected according to the specification in page 33.

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Installing and connecting the assembly pipe of the indoor unit

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 pipe is already fitted to the air conditioner. You may need to extend the pipe using the assembly pipe (optional).

The connection procedure for the refrigerant pipe varies according to the exit position of the pipe when facing the wall:

• Right(A)
- Left(B)
- Underside(C)
- Rear

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:

A B C

Outer Diameter	Torque
	N·m kgf·cm
ø6.35 mm 14~	18 140~180
ø9.52 mm 34~	42 350~430
ø12.70 mm 49~	61 500~620
ø15.88 mm 68~	82 690~830

• If you want to shorten or extend the pipes, refer to page 36\~37.

1. Cut off the remaining foam insulation.
2. 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.

1. Pass the pipe through the hole in the wall.

2. For further details on how to connect to the outdoor unit and evacuate the air, refer to page 40 \~ 41.

- The pipe will be insulated and fixed permanently into position after finishing the installation and the gas leak test; refer to page 43 for further details.

• Tighten the flare nut with torque wrench according to specified method. If the flare nut is over-tightened, the flare may break and cause refrigerant gas leakage.
• DO NOT WALL UP THE PIPE CONNECTION! All refrigerant pipe connection must be easy accessible and serviceable.

Evacuating the indoor unit

The indoor unit is supplied with inert gas (nitrogen).

Before installing the unit, check if nitrogen gas flows out of indoor unit.

If this one isn't true, DO NOT INSTALL THE UNIT since leakage could be inside the indoor unit.

1. Unscrew the caps at the end of each pipe.

▶ All inert gas exhausts from the indoor unit.

- To prevent dirt or foreign substances from getting into the pipes during installation, do NOT remove the caps completely until you are ready to connect the pipes.

- The remaining air in the Refrigeration cycle, which contains moisture, may cause malfunction on the compressor.

• Always contact the service center or a professional installation agency for product installation.

Pipes Unscrew the caps

Cutting or extending the pipe

The length of the pipe can be:

• Extended up to : see table page 28
- Shorten up to: see page 28

If you need a pipe longer than 5 meters:

• You must add refrigerant to the pipes; otherwise, the indoor unit may freeze.

1. Make sure that you have all the required tools (pipe cutter, reamer, flaring tool and pipe holder).
2. If you want to shorten the pipe, cut it using a pipe cutter, ensuring that the cut edge remains at 90^ with the side of the pipe (see below examples of correct and incorrect cut edges).

Pipe cutter Pipe

1. To prevent a gas leak, remove all burrs at the cut edge of the pipe using a reamer.

- Face the pipe down while removing the burrs to make sure that burrs do not get in to the pipe.

1. Put a flare nut slightly into the pipe and modify the flare.

D A 90°±2° 45°±2' B R 0.4~0.8 Pipe Flare

Outer Diameter (D)	Depth (A)	Flaring Size (B)
ø6.35 mm	1.3 mm	8.7 - 9.1 mm
ø9.52 mm	1.8 mm	12.8 - 13.2 mm
ø12.70 mm	2.0 mm	16.2 - 16.6 mm
ø15.88 mm	2.2 mm	19.3 - 19.7 mm

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Cutting or extending the pipe

1. Check if you flared the pipe correctly (see examples of incorrectly flared pipes below).

Correct

Inclined

Damaged Surface

Cracked

Uneven Thickness

1. Align the pipes to connect them easily. Tighten the flare nuts first with your hands, and then with a torque wrench, applying the following torque:

Flare nut Indoor outlet pipe Connecting pipe

Outer Diameter	Torque
	N·m kgf·cm
ø6.35 mm 14~	18 140~180
ø9.52 mm 34~	42 350~430
ø12.70 mm 49~	61 500~620
ø15.88 mm 68~	82 690~830

- Excessive torque can be cause of gas leakage. If extending pipe by welding/brazing please ensure nitrogen is used during welding/brazing process. The joint must be accessible and serviceable.

1. For further details on how to connect to the outdoor unit and evacuate the air, refer to page 40 \~ 41.

- Tighten the flare nut with torque wrench according to specified method. If the flare nut is over-tightened, the flare may break and cause refrigerant gas leakage.

Installing and connecting the drain hose of the indoor unit

When installing the drain hose for the indoor unit, check if condensation draining is adequate. When passing the drain hose through the 65-mm hole drilled in the wall, check the followings:

Wall Indoor unit Drain hose

Pure mechanical diagram showing a bracket and vertical wall with diagonal hatching (no text or symbols)

The drain hose must NOT slant upwards.

Technical line drawing of a mechanical assembly with no visible text or symbols

The end of the drain hose must NOT be placed under water.

Technical diagram of a mechanical assembly with no visible text or symbols

The drain hose must not be bent.

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Installing and connecting the drain hose of the indoor unit

5cm less

Keep a clearance of at least 5cm between the end of the drain hose and the ground.

Ditch

Do not place the end of the drain hose in a hollow.

Interior view of a refrigerated air conditioner unit showing airflow path and door panel (no text or symbols)

After completing the installation of the drain hose, pour water into the drain pan to check whether the hose is well drained.

1) Correct connection 2) Incorrect connection

Drain hose

Drain hosePipe Pipe

• Don't tie drain hose to the assembly pipe which may lead to water leakage.
  • If the diameter of the connection hose is smaller than the product's drain hose, water leakage may occur.

Drain hose installation

1. If necessary, connect the 2 meter extension drain hose to the drain hose.
2. If you use the extension drain hose, insulate the inside of the extension drain hose with a shield.
3. Fit the drain hose into 1 of 2 drain hose holes, then fix the end of the drain hose tightly with a clamp.

• If you do not use the other drain hose hole, block it with a rubber stopper.

1. When extending the Drain Hose, hold the end of Drain Hose and Extended Hose, rotate and insert the drain hose into Extended hose for 40\~45 mm. Make sure
   the two hoses are firmly connected, there is no water leakage.

Drain hose hole

1. Connect the Drain Hose after using Foam Insulation to wrap the Extended Hose. Then, Use vinyl tape to wrap the each side of connection by 20 mm.

Drain hose Extension drain hose 40~45 mm Drain hose Extension drain hose 20 mm 20 mm or more or more Vinyl Tape Foam Insulation

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Installing and connecting the drain hose of the indoor unit

1. Pass the drain hose under the refrigerant pipe, keeping the drain hose tight.

2. Pass the drain hose through the hole in the wall. Check if it slants downwards as seen in the picture.

3. Using natural drainage method, check the drainage is normal.

Shield Drain hose Extension drain hose

- The hose will be fixed permanently into position after finishing the installation and the gas leak test; refer to page 43 for further details.

• Make sure the installed direction of the drain hose is correct. Inadequate installation may cause condensate 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 WALL UP THE DRAIN HOSE CONNECTION! Drain hose connection must be easy accessible and serviceable.

Changing direction of the drain hose

Change the direction only when it is necessary.

1. Detach the rubber cap with the pliers.

2. Detach the drain hose by pulling it and turning to the right.

3. Insert the drain hose by fixing it with the screw into the groove of the drain hose and the outlet of the drain pan.

Screw hole Screw Drain hose

1. Attach the rubber cap with a screwdriver by turning it to the left until it fixes to the end of the groove.

Drain pan outlet Rubber cap

1. Check for leakage on both side of the drain outlet.

Pour the water in direction of arrow.

* Direction of the drained water

Diagram showing a mechanical assembly with two views of a component, no visible text or symbols

- Make sure 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.

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Installing and connecting the drain hose of the outdoor unit

While heating, ice may accumulate. During the process of defrosting, check if condensation draining is adequate. For adequate draining, do the following.

1. Insert the drain plug into the drain hole on the underside of the outdoor unit.

- To avoid drain plug from contacting the ground, secure gap between the ground and the bottom surface of the outdoor unit.

Drain hole Drain plug

1. Connect a drain hose to the drain plug.

Bottom surface of outdoor unit Drain hole Drain plug Drain hose

1. Ensure that condensation draining is adequate.

- In areas with heavy snow fall, piled snow could block the air intake. To avoid this incident, install a frame that is higher than estimated snow fall. In addition, install a snow-proof hood to avoid snow from piling on the outdoor unit.

Snow-proof hood Estimated snow fall Frame Ground

Evacuating the connected pipes

The outdoor unit is loaded with sufficient R-22 refrigerant.

You should evacuate the air in the indoor unit and in the pipe. If air remains in the refrigerant pipes, it affects the compressor. It may cause reduction of cooling capacity and malfunction.

- When installing, make sure there is no leakage. When recovering the refrigerant, ground the compressor first before removing the connection pipe. If the refrigerant pipe is not properly connected and the compressor works with the service valve open, the pipe inhales the air and it makes the pressure inside of the refrigerant cycle abnormally high. It may cause explosion and injury.

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Evacuating the connected pipes

1. Connect each assembly pipe to the appropriate valve on the outdoor unit and tighten the flare nut.
2. Tighten the flare nut first with your hands, and then with a torque wrench, applying the following torque.

Excessive torque can be cause of gas leakage.

1. Connect the charging hose of the low-pressure side of manifold gauge to a gas service port as seen in the picture.
2. Open the valve of the low pressure side of manifold gauge counterclockwise.
3. Evacuate the air in the connected pipes using the vacuum pump for about 15 minutes.

▶ Make sure that pressure gauge shows -0.1 MPa(-76 cmHg) after about 10 minutes.
This procedure is very important to avoid a gas leak.
▶ Close the valve of the low pressure side of manifold gauge clockwise.
▶ Turn off the vacuum pump.
▶ Check for 2 minutes if there is any pressure change.
Remove the hose of the low pressure side of manifold gauge.

1. Set a valve cork of liquid and gas service port to the open position.

Outdoor unit Indoor unit

graph LR
    A[" "] --> B[" "]
    B --> C[" "]
    D[" "] --> E[" "]
    E --> F[" "]
    G[" "] --> H[" "]
    H --> I[" "]
    J[" "] --> K[" "]
    K --> L[" "]
    M[" "] --> N[" "]
    N --> O[" "]
    P[" "] --> Q[" "]
    Q --> R[" "]
    S[" "] --> T[" "]
    T --> U[" "]
    V[" "] --> W[" "]
    W --> X[" "]
    Y[" "] --> Z[" "]
    Z --> AA[" "]

Outer Diameter	Torque
	N·m	kgf·cm
ø6.35 mm	14~18	140~180
ø9.52 mm	34~42	350~430
ø12.70 mm	49~61	500~620
ø15.88 mm	68~82	690~830

Manifold gauge Valve Gas service port Liquid service port Vacuum Pump (Backward flowing prevention)

Adding Refrigerant

Add refrigerant charge according to table below:

If you use a pipe longer than 5 m,

'A' g of refrigerant R-22 must be added for each extra meter.

If you use a pipe shorter than 5 m,

The evacuating time is normal.

Refer to the Service Manual for further details.

(Unit : g)

Model A
**13/19/20**	20

CAUTION

The remaining air in the Refrigeration cycle, which contains moisture, may cause malfunction on the compressor.

Always contact the service center or a professional installation agency for product installation.

Performing the gas leak tests

Make sure to check for gas leaks before completing the installation process (connecting the assembly pipe and hose between indoor unit and outdoor unit, insulating the cables, hose and pipe, and fixing the indoor unit to the installation plate).

Diagram showing a device connected to a mechanical component with labeled parts A and B, including dashed lines indicating connection.

C D

Test part for outdoor unit

Tightening torque for body cap (Refer to the table) Spindle Charging core R-22: Diameter of the screw - 7/16-20UNF R-410A: Diameter of the screw - 1/2-20UNF Tightening torque for charging port cap (Refer to the table)

Test part for indoor unit

▶ Before inspecting the leakage, use a torque wrench to close the cap for the service valve. (Comply with a tightening torque for each size of the diameter, and tighten the cap firmly to prevent any leakage.).
▶ To check for any possible leakage, insert inert gas into the pipes connected to indoor/outdoor units and check the connection part of the indoor/outdoor units with soap lather or liquid for leakage test.

Outer Diameter (mm)	Tightening torque
	Body cap (N·m)	Charging port cap (N·m)
ø 6.35	20 ~ 25	10 ~ 12
ø 9.52	20 ~ 25
ø12.70	25 ~ 30
ø15.88	30 ~ 35
ø19.05	35 ~ 40

(1 N·m = 10 kgf·cm)

To check for gas leaks on the outdoor unit,

Check the valve A and B using a leak detector.

To check for gas leaks on the indoor unit,

Check the flare nut C and D using a leak detector.

Leak test with nitrogen (before opening valves)

In order to detect basic refrigerant leaks, before recreating the vacuum and recirculating.

Leak test (after opening valves)

Before opening valves, discharge all the nitrogen from the system and create vacuum according to page 40 \~ 41.

After opening valves, check leaks using a leak detector for refrigerant.

Pump down (before disconnecting the refrigerant connections for unit repair, removal or disposal)

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 tubing in order to avoid refrigerant loss to the atmosphere.

▶ Shut off the liquid valve with the Allen wrench.
▶ Turn the system on in cooling with fan operating at high velocity.
( Compressor will immediately start, provided 3 minutes have elapsed since the last stop).
▶ After 2 minutes of operation, shut the suction valve with the same wrench.
▶ Turn the system off and switch mains supply off.
▶ Disconnect tubing. After disconnection, protect valves and tubing ends from dust.
▶ Compressor damage may occur if run at a negative suction pressure.

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Fixing the indoor unit in place

Perform the following work on the area where gas leak test was done priory.

After checking for gas leaks in the system, insulate the pipe, hose and cables.

Then place the indoor unit on the installation plate.

1. To minimise condensation problems, wrap foam insulation (as shown in the figure) on a part without insulation on the end of the pipes.
2. Wind the pipe, assembly cable and drain hose with vinyl tape.
3. Place the bundle (the pipe, assembly cable and drain hose) in the lower part of the indoor unit carefully so it does not project from the rear of the indoor unit.
4. Hook the indoor unit to the installation plate and move the unit to the right and left until it is securely in place.

Make sure pipe does not move when you install the indoor unit on an installation plate.

1. Wrap the rest of the pipe with vinyl tape.
2. Attach the pipe to the wall using clamps (optional).

Installation plate Vinyl tape Connecting wires Drain hose Connecting pipes

Fixing the outdoor unit in place

Install the outdoor unit in level on a stable base to help avoid the generation of noise and vibration, especially when installing the unit close to a neighbor.

If you install the outdoor unit in a place exposed to strong winds or at a height, fix it to an appropriate support (wall or ground).

1. Place the outdoor unit as indicated on the top of the unit to let the discharged air out properly.
2. Fix the outdoor unit in level to an appropriate support using anchor bolts.
3. If the outdoor unit is exposed to strong winds, install shield plates around the outdoor unit so that the fan can operate correctly.

- Secure the rubber leg to help prevent the generation of noise and vibration.

'X' mm Y' mm Rubber leg

Model X Y
AS13**,AR13JC/KC** 453 254
AS19**,AR19JC/KC** AQ13**,AR13JP/KP**	538	290
AS25**,AR25JC/KC** AQ19**,AR19JP/KP** AQ25**,AR25JP/KP**	660	340

Outdoor unit installed on the wall by rack

• Ensure the wall will be able to suspend the weight of rack and outdoor unit;
  • Install the rack close to the column as much as possible;
  • Install proper grommet in order to help reduce noise and residual vibration transferred by outdoor unit towards wall.

Designed to cut off residual vibration from outdoor unit to rack. (not supplied with product) Soft rubber designed to cut off vibration from rack to wall. (not supplied with product)

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Final check and trial operation

To complete the installation, perform the following checks and tests to ensure that the air conditioner operates correctly.

Check the followings:

• 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 (follow the steps below)

Smart Saver Mode Turbo Quiet Auto Clean Smart Saver Mode Turbu Quiet Auto Clean + Temp - good Clean Fan

1. Press the Power ⏻ button and check the following:

▶ The indicator on the indoor unit lights up.
▶ The airflow blade opens and the fan gears up for operation.

2. Press the Mode button to select Cool or Heat mode.

▶ In Cool mode, use Temp + or - button and set the temperature at 16^ C.
▶ In Heat mode, use Temp + or - button and set the temperature at 30^ C.

- Approximately 3\~5 minutes later, outdoor unit will start to operate and the Cool or Warm air will blow out. - After 12 minutes of stationary condition check the indoor unit air treatment:

Cooling mode (indoor unit check) Inlet air temp. - Outlet air temp: From 10°K to 12°K (indicative delta T) Heating mode (indoor unit check) Outlet air temp. - Inlet air temp: From 11°K to 14°K (indicative delta T)

In heating mode, the indoor fan motor can remain off to avoid cold air blown into conditioned space.

3. Press the Air swing ⏻ button and check the following:

▶ The airflow blades work properly.

4. Press the Power ⏻ button to stop the operation.

When you complete the installation successfully, hand over this manual to the user for storage in a handy and safe place.

Pump down procedure (when removing the product)

1. Turn on the air conditioner and select Cool mode to run the compressor for 3 minutes.
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 1 minutes, 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 controller.
6. Disconnect the pipes.

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How to connect your extended power cables

Items to prepare

(compressor and insulation tape should be prepared by an installation technician.)

Tools Crimping pliers		Connection sleeve (mm)	Insulation tape	Contraction tube (mm)
Spec	MH-14 20x∅	7.0(HxOD) Width 18 mm	50x∅8.0(LxOD)
Shape			[HDST]

1. As shown in the figure, peel off the shields from the rubber/wire of the power cable.

- Peel off 20 mm of the wire shields of the tube installed already.

After peeling off the tube wire, you must insert a contraction tube.

1. Insert both sides of core wire of the power cable into the connection sleeve.

2. Using a compressor, 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.

1. Wrap it with the insulation tape twice and position your contraction tube in the middle of the insulation tape.

2. Apply heat to the contraction tube to contract it.

3. After tube contraction work is completed, wrap it with the insulation tape to finish.

(Unit: mm) Power cable (provided by us) 20 20 60 120 180 Wire tube power cable 20

Connection sleeve

Comp. dim. 8 Compress it 4 times 5 mm

Insulation tape 40 mm Contraction tube

Insulation tape

- 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.

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SAMSUNG

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