Manual Kaysun KSD-52 DVN12 (page 14 of 16) (English)

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IMPORTANT NOTE:

Read this manual carefully before installing or operating your new air conditioning

unit. Make sure to save this manual for future reference.

OWNER'S MANUAL

Double Flow Console

KSD-35 DVN12

KSD-52 DVN12

KSD-35 DVR12

KSD-52 DVR12

Set

(Indoor Unit, Outdoor Unit)

For R-410A

units

For R-32

units

KSD-35 DVN12

(KSD-35 DR12 , KUE-35 DVN11)

KSD-52 DVN12

(KSD-52 DR12 , KUE-52 DVN12)

KSD-35 DVR12

(KSD-35 DR12 , KUE-35 DVR12)

KSD-52 DVR12

(KSD-52 DR12 , KUE-52 DVR12)

Table of Contents

Page

0. Safety Precautions ........................................................................................ 4

1. Indoor Unit Parts and Major Functions ....................................................... 6

2. Manual Operations ....................................................................................... 8

3. Care and Maintenance ................................................................................. 9

a. Unit Maintenance

b. How to Clean the Air Filter

c. Repairing Refrigerant Leaks

d. Preparation for Periods of Non-use

4. Troubleshooting ............................................................................................ 11

a. Common Problems

b. Troubleshooting Tips

c. Error Codes

5. European Disposal Guidelines ..................................................................... 14

Caution: Risk of fire /

flammable materials

(for R-32 refrigerant only)

WARNING: Servicing shall only be performed as recommended by the equipment manufacturer. Maintenance

and repair requiring the assistance of other skilled personnel shall be carried out under the supervision of the

person competent in the use of flammable refrigerants. For more details, please refer to the Information on

servicing on INSTALLATION MANUAL. (This is only required for the unit adopts R-32 Refrigerant).

 Page 4 

Thank you for purchasing this air conditioner. This manual will provide you with information on how to operate, maintain,

and troubleshoot your air conditioner. Following the instructions will ensure the proper function and extended lifespan of

your unit.

Please pay attention to the following signs:

Failure to observe a warning may result in serious injuries. The appliance must be installed in

accordance with national regulations.

Failure to observe a caution may result in injury or equipment damage.

WARNING

CAUTION

WARNING

• Ask an authorized dealer to install this air conditioner.

Inappropiate installation may cause water leakage,

electric shock, or ﬁre.

• The warranty will be voided if the unit is not installed

by professionals.

• If abnormal situation arises (like burning smell), turn off

the power supply and call your dealer for instructions to

avoid electric shock, ﬁre or injury.

• Do not let the indoor unit or the remote control get

wet. It may cause electric shock or ﬁre.

• Do not insert ﬁngers, rods or other objects into the air

inlet or outlet. This may cause injury, since the fan may

be rotating at high speeds.

• Do not use ﬂammable sprays such as hair spray,

lacquer or paint near the unit. This may cause ﬁre or

combustion.

• Do not use means to accelerate the defrosting process

or to clean, other than those recommended by the

manufacturer.

• The appliance shall be stored in a room without

continuously operating ignition sources (for example,

open ﬂames, an operating gas appliance or an operatins

electric heater).

• The appliance shall be stored so as to prevent mechanical

damage from ocurring.

• Be aware that the refrigerants may not contain an

odour.

• Compliance with national gas regulations shall be

observed.

• Keep ventilation openings clear of obstruction.

0. Safety Precautions

NOTE: The following informations are required for the units

adopts R-32 Refrigerant.

• Do not pierce or burn.

• A warning that the appliance shall be stored in a well-

ventilated area where the room size corresponds to the

room areas as speciﬁed for operation.

• Any person who is involved with working on or

breaking into a refrigerant circuit should hold a current

vaild certiﬁcate from an industry-accredited assessment

authority, which authorises their competence to handle

refrigerants safely in accordance with an industry

recognised assessment speciﬁcation.

• Servicing shall only be performed as recommended by

the equipment manufacturer. Maintenance and repair

requiring the assistance of other skilled personnel shall

be carried out under the supervision of the person

competent in the use of ﬂammable refrigerants.

• If the supply cord is damaged, it must be replaced by

the manufacturer, its service agent or similarly qualiﬁed

persons in order to avoid a hazard.

 Page 5 

CAUTION

• Do not touch the air outlet while the swing ﬂap is in

motion. Fingers might get caught or the unit may break

down.

• Do not inspect the unit by yourself. Ask an authorized

dealer to perform the inspection.

• To prevent product deterioration, do not use the air

conditioner for preservation purposes (storage of food,

plants, animals, works of art, etc.).

• Do not touch the evaporator coils inside the indoor

unit. The evaporator coils are sharp and may cause

injury.

• Do not operate the air conditioner with wet hands. It

may cause electric shock.

• Do not place items that might be affected by moisture

damage under the indoor unit. Condensation can occur

at a relative humidity of 80%.

• Do not expose heat-producing appliances to cold air

or place them under the indoor unit. This may cause

incomplete combustion or deformation of the unit due

to the heat.

• After long periods of usage, check the indoor unit to see

if anything is damaged. If the indoor unit is damaged, it

may fall and cause injury.

• If the air conditioner is used together with other heating

devices, thoroughly ventilate the room to avoid oxygen

deﬁciency.

• Do not climb onto or place objects on top of the

outdoor unit.

• Do not operate the air conditioner when using fumigant

insecticides. The chemicals may become layered with

the unit and endanger those who are hypersensitive to

chemicals.

• Do not let children play with the air conditioner.

• Do not operate the air conditioner in a wet room (e.g.

bathroom or laundry room). This can cause electrical

shock and cause the product to deteriorate.

• This appliance can be used by children aged from 8

years and above and persons with reduced physical,

sensory or mental capabilities or lack of experience

and knowledge if they have been given supervision or

instruction concerning use of the appliance in a safe

way and understand the hazards involved. Children

shall not play with the appliance. Cleaning and user

maintenance shall not be made by children without

supervision (EN Standard requirements).

• 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 supervisionor

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 (IEC Standard requirements).

• The appliance shall be installed in accordance with

national wiring regulations.

• The indoor unit must be installed 2,5 m above ﬂoor.

• An all-pole disconnection device which has at least

3mm separation distance in all pole and a residual

current device (RCD) with the rating of above 10mA

shall be incorporated in the ﬁxed wiring according to

the national rule.

Air inlet (with air ﬁlter in it)

Air ﬂow louver (at air outlet)

Display panel

Drain hose

Refrigerant

connecting pipe

Fig. 1.1

Air ﬂow louver (at air outlet)

 Page 6 

1. Indoor Unit Parts and Major Functions

Unit Parts

Operating Conditions

Use the system under the following temperatures for safe and effective operation. If the air conditioner is used under

different conditions, it may malfucntion or become less efﬁcient.

Inverter Split Type

COOL Mode HEAT Mode DRY Mode

Room Temperature

17°C - 32°C

(62°F - 90°F)

0°C - 30°C

(32°F - 86°F)

17°C - 32°C

(62°F - 90°F)

Outdoor Temperature

0°C - 50°C

(32°F - 122°F)

-15°C - 24°C

(5°F - 76°F)

0°C - 50°C

(32°F - 122°F)

-15°C - 50°C

(5°F - 122°F)

(For models with low-temp.

cooling systems)

18°C - 54°C

(For special tropical models)

-7ºC - 24ºC

0°C - 60°C

(For special tropical models)

COOL Mode HEAT Mode DRY Mode

Room

Temperature

17°C - 32°C (62°F - 90°F) 0°C - 30°C (32°F - 86°F) 17°C - 32°C (62°F - 90°F)

Outdoor

Temperature

18°C - 43°C (64°F - 109°F)

-7°C - 24°C (19°F - 75°F)

18ºC - 43ºC (64ºF - 109ºF)

-7°C - 43°C (19°F - 109°F)

(For models with low-temp. cooling

systems)

18°C - 54°C (64°F - 129°F)

(For special tropical models)

18°C - 54°C (64°F - 129°F)

(For special tropical models)

FOR OUTDOOR UNITS

WITH AUXILIARY ELECTRIC

HEATER

When outside temperature is

below 0ºC (32ºF), we strongly

recommend keeping the unit

plugged in at all time to ensure

smooth ongoing performance.

Fixed-Speed Type

Closing curtains during heating also helps

keep the heat in

Doors and windows should be kept closed

 Page 7 

Features

• Auto-Restart (some models)

In case of power failure, the system will immediately

stop. To restart the unit, press the ON/OFF button on

the remote control. If the system has an auto restart

function, the unit will restart using the same settings.

• Refrigerant Leak Detection System (some

models)

In the event of a refrigerant leak, the LCD screen will

display "EC" and the LED indicator light will ﬂash.

Energy Saving Tips

• DO NOT set the unit to excessive temperature levels.

• While cooling, close the curtains to avoid direct sunlight.

• Doors and windows should be kept closed to keep cool or warm air in the room.

• DO NOT place objects near the air inlet and outlet of the unit. This will reduce the efﬁciency of the unit.

• Set a timer and use the built-in SLEEP/ECONOMY mode if applicable.

• If you don't plan to use the unit for a long time, remove the batteries from the remote control.

• Clean the air ﬁlter every two weeks. A dirty ﬁlter can reduce cooling or heating efﬁciency.

• Adjust louvers properly and avoid direct airﬂow.

• Louver Angle Memory Function (optional)

Some models are designed with a louver angle memory

function. When the unit restarts after a power failure, the

angle of the horizontal louvers will automatically return

to the previous position. The angle of the horizontal

louver should not be set too small as condensation may

form and drip into the machine. To reset the louver,

press the manual button, which will reset the horizontal

louver settings.

When the outdoor temperature is below zero, the

electric heating belt of the outdoor unit chassis is used

for ice melting, without defrosting.

Manual button

Operation indicator

Infrared receiver

Fig. 2.2 Fig. 2.3 Fig. 2.4

Fig. 2.5

 Page 8 

2. Manual Operations

This display panel on the indoor unit can be used to operate

the unit in case the remote control has been misplaced or is

out of batteries.

Fig. 2.1

Displays temperature and Error codes:

when defrosting (cooling & heating units)

for 3 seconds when:

TIMER ON is set

SWING or SILENCE is turned on

for 3 seconds when:

TIMER OFF is set

SWING or SILENCE is turned off

when unit is self-cleaning

when 8ºC heating feature is turned on

• MANUAL button: This button selects the mode in the

following order: AUTO, FORCED COOL, OFF.

• FORCED COOL mode: In FORCED COOL mode, the

system will then turn to AUTO after it has cooled with a

high wind speed for 30 minutes.

• OFF mode: When the panel is turned OFF, the unit

turns off and the remote control is re-enabled.

Adjusting Air Flow Direction

Manual Swing: Press Air Direction to ﬁx the louver a

desired angle. The louver swings (upward or downward) at

a different angle with each press of the button.

When cooling

Adjust the louver downwards (horizontally). (See Fig. 2.3).

When heating

Adjust the louver vertically. (See Fig. 2.4).

CAUTION

Do not try to adjust the horizontal louver by hand. This may

cause damage the mechanism and result in condensation

forming on the air outlets.

Adjust the Air Flow Direction Left and Right

Hold the knov and move the louver.

You will ﬁnd a knob on the left-side and the right-side

blades. (See Fig. 2.5).

Fig. 3.1

Air Outlet

Selection Switch

Fig. 3.2

 Page 9 

3. Care and Maintenance

Safety Precautions

• Contact an authorized service technician for repair or

maintenance. Improper repair and maintenance may

cause water leakage, electrical shock, or ﬁre, and may

void your warranty.

• Do not substitute a blown fuse with a higher or lower

amperage rating fuse, as this may cause circuit damage

or an electrical ﬁre.

• Make sure the drain hose is set up according to the

instructions. Failure to do so could cause leakage and

result in personal property damage, ﬁre and electric

shock.

• Make sure that all wires are connected properly. Failure

to connect wires according to instructions can result in

electrical shock or ﬁre.

Unit Maintenance

BEFORE CLEANING OR MAINTENANCE

• Always turn off your air conditioning system and

disconnect the power supply before cleaning or

maintenance.

• Do not use chemicals or chemically treated cloths to

clean the unit.

• Do not use benzene, paint thinner, polishing powder

or other solvents to clean the unit. They can cause the

plastic surface to crack or deform.

• Do not wash the unit under running water. Doing so

creates an electrical hazard.

• Do not use water hotter than 40ºC (104ºF) to clean

the front panel. This can cause the panel to become

deformed or discolored.

• Clean the unit using a damp, lint-free cloth and neutral

detergent. Dry the unit with a dry, lint-free cloth.

How To Clean The Air Filter

The ﬁlter prevents dust and other particles from entering

the indoor unit. Dust buildup can reduce the efﬁcency of

the air conditioner. For optimum efﬁciency, clean the air

ﬁlter every two weeks or more frequently if you live in a

dusty area. Replace the ﬁlter with a new one if it's heavily

clogged and cannot be cleaned.

WARNING: DO NOT REMOVE OR CLEAN

THE FILTER BY YOURSELF

Removing and cleaning the ﬁlter can be dangerous.

Removal and maintenance must be performed by a certiﬁed

technician.

NOTE: In households with animals, you will have to

periodically wipe down the grille to prevent animals hair

blocking air ﬂow.

1. Open the front panel.

2. Remove the air ﬁlter.

Press the claws on the right and left sides of the air ﬁlter

down slightly, then pull upward.

Fig. 3.4

Special function ﬁlter

Fig. 3.3

 Page 10 

3. Hold the tabs of the frame and remove the 4 claws. (The

special function ﬁlter can be washed with water once

every 6 months. It is recommended that you replace it

once every 3 years).

Repairing Refrigerant Leaks

WARNING

• If the refrigerant leaks, turn off the air conditioner and

any combustible heating devices, ventilate the room

and call your dealer immediately. Refrigerant is both

toxic and ﬂammable. Do not use the air conditioner

until the leak is repaired.

• When the air conditioner is installed in a small room,

measures must be taken to prevent the refrigerant

concentration from exceeding the safety limit in the

event of refrigerant leakage. Concentrated refrigerant

causes a severe health and safety threat.

Refrigerant Leak Detection System (some models)

In the event of a refrigerant leak, the LCD screen will display

"EC" and the LED indicator light will ﬂash.

Preparation For Periods Of Non-Use

Maintenance after Extended Non-Use

1. Remove any obstacles blocking the vents of both the

indoor and outdoor units.

2. Clean the air ﬁlter and the front grille of the indoor unit.

Reinstall the clean, dry air ﬁlter in its original position.

3. Turn on the main power switch at least 12 hours prior

to operating the unit.

Storing the Unit While Not in Use

1. Run the appliance on FAN mode for 12 hours in a warm

room to dry it and prevent mold.

2. Turn off the appliance and unplug it.

3. Clean the air ﬁlter according to the instructions in the

previous section. Reinstall the clean, dry ﬁlter before

storing.

4. Remove the batteries from the remote control.

4. Clean the air ﬁlter by vacuuming the surface or washing

in warm water with mild detergent.

A. If using a vacuum cleaner, the inlet side should face

the vacuum.

B. If using water, the inlet side should face down and

away from the water stream.

5. Rinse the ﬁlter with clean water and allow it to air-dry.

Do not let the ﬁlter dry in direct sunlight.

6. Reinstall the ﬁlter.

 Page 11 

4. Troubleshooting

CAUTION

If one of the following conditions occurs, switch off the power supply immediately and contact your dealer for further

assistance.

• The operation light continues to ﬂash rapidly after the unit has been restarted.

• The remote-control buttons do not work.

• The unit continually trips fuses or circuit breakers.

• A foreign object or water enters the air conditioner.

• The indoor unit leaks

• Other abnormal situations

Common Issues

The following problems are not a malfunction and, in most situations, will not require repairs.

Issue Possible Causes

Unit does not turn on

when pressing ON/OFF

button

The unit has a 3-minute protection feature that prevents the unit from overloading. The

unit cannot be restarted within three minutes of being turned off

The unit changes from

COOL mode to FAN

mode

The unit changes its setting to prevent frost from forming on the unit. Once the temperature

increases, the unit will start operating again.

The set temperature has been reached, at which point the unit turns off the compressor.

The unit will continue operating when the temperature ﬂuctuates again.

The indoor unit emits

white mist

In humid regions, a large temperature difference between the room's air and the

conditioned air can cause white mist.

Both the indoor and

outdoor units emit

white mist

When the unit restarts in HEAT mode after defrosting, white mist may be emitted due to

moisture generated from the defrosting process.

The indoor unit makes

noises

A squeaking sound is heard when the system is OFF or in COOL mode. The noise is also

heard when the drain pump (optional) is in operation.

A squeaking sound may occur after running the unit in HEAT mode due to expansion and

contraction of the unit's plastic parts.

Both the indoor unit

and outdoor unit make

noises

A low hissing sound may occur during operation. Thia ia normal and is caused by refrigerant

gas ﬂowing through both indoor and outdoor units.

A low hissing sound may be heard when the system starts, has just stopped running or is

defrosting. This noise is normal and is caused by the refrigerant gas stopping or changing

direction.

The outdoor unit makes

noises

The unit will make different sounds based on its current operating mode.

Dust is emitted from

either the indoor or

outdoor unit

The unit may accumulate dust during extended periods of non-use, which will be emitted

when the unit is turned on.

This can be mitigated by covering the unit during long periods of inactivity.

 Page 12 

Issue Possible Causes

The unit emits a bad

odour

The unit may absorb odours from the environment (such as furniture, cooking, cigarettes,

etc.) which will be emitted during operations.

The unit's ﬁlters have become moldy and should be cleaned.

The fan of the outdoor

unit does not operate

During operation, the fan speed is controlled to optimize product operation.

Troubleshooting Tips

When troubles occur, please check the following points before contacting a repair company.

Problem Possible Causes Solution

The unit is not

working

Power failure Wait for the power to be restored

The power is switch off Turn on the power

The fuse is burned out Replace the fuse

Remote control batteries are dead Replace the remote-control batteries

The Unit's 3-minute protection has been

activated

Wait three minutes after restarting the unit

Poor Cooling

Performance

Temperature setting may be higher than

ambient room temperature

Lower the temperature setting

The heat exchanger on the indoor or outdoor

unit is dirty

Clean the affected heat exchanger

The air ﬁlter is dirty

Remove the ﬁlter and clean it according to

instructions

The air inlet or outlet of either unit is blocked

Turn the unit off, remove the obstruction and turn

it back on

Doors and windows are open

Make sure that all doors and windows are closed

while operating the unit

Excessive heat is generated by sunlight

Close windows and curtains during periods of

high heat or bright sunshine

Low refrigerant due to leak or long-term use

Check for leaks, re-seal if necessary and top off

refrigerant

The unit starts and

stops frequently

There's too much or too little refrigerant in

the system

Check for leaks and recharge the system with

refrigerant

There is air, incompressible gas or foreign

material in the refrigeration system

Evacuate and recharge the system with refrigerant

System circuit is blocked

Determine which circuit is blocked and replace the

malfunctioning piece of equipment.

The compressor is broken Replace the compressor

The voltage is too high or too low Install a manostat to regulate the voltage

Poor heating

performance

The outdoor temperature is lower than 7ºC

(44.5ºF)

Check for leaks and recharge the system with

refrigerant

Cold air is entering through doors and

windows

Make sure that all doors and windows are closed

during use

Low refrigerant due to leak or long-term use

Check for leaks, re-seal if necessary and top off

refrigerant

 Page 13 

Error Codes

Error code appears and begins with the letters

as the following in the window display of

indoor unit:

E(x), P(x), F(x)

The unit may stop operation or continue to run safely. If the indicator lamps continue to ﬂash or error codes appear, wait

for about 10 minutes. The problem may resolve itself.

If not, disconnect the power, then connect it again. Turn the unit on.

If the problem persists, disconnect the power and contact your nearest customer service center.

 Page 14 

5. European Disposal Guidelines

Users in European Countries may be required to properly dispose of this unit. This appliance contains refrigerant and other

potentially hazardous materials. When disposing of this appliance, the law requires special collection and treatment. Do

not dispose of this product as household waste or unsorted municipal waste.

When disposing of this appliance, you have the following options:

• Dispose of the appliance at designated municipal electronic waste collection facility.

• When buying a new appliance, the retailer will take back the old appliance free of charge.

• The manufacturer will take back the old appliance free of charge.

• Sell the appliance to certiﬁed scrap metal dealers.

NOTE:

Disposing of this appliance in the forest or other natural surroundings endangers your health and is bad for the environment.

Hazardous substances may leak into the ground water and enter the food chain.

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Kaysun KSD-52 DVN12 Manual

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