Kaysun KPD-35 DN10 User manual

OWNER’S MANUAL
Middle Static Pressure Duct Type
KPD-35 DN10
KUE-35 DVN10
KPD-52 DN10
KUE-52 DVN10
KPD-71 DN10
KUE-71 DVN10
KPD-90 DN10
KUE-90 DVN10
KPD-105 DN10
KUE-105 DVN10
KPD-105 DN10
KUE-105 DTN10
KPD-125 DN10
KUE-125 DVN10
KPD-125 DN10
KUE-125 DTN10
KPD-140 DN10
KUE-140 DVN10
KPD-140 DN10
KUE-140 DTN10
KPD-160 DN10
KUE-160 DTN10
IMPORTANT NOTE:
Read this manual carefully before installing or operating your new air
conditioning unit. Make sure to save this manual for future reference.

Table of Contents
Owner’s Manual
1 Safety Precautions 04
....................................................
SAFETY
FIRST
2 Indoor Unit Parts and Major Functions .......... 05
3 Manual 07
Operations....................................................

4 Care and Maintenance ..........................
0
..
8
a. Unit Maintenance .....................................0..8
b. How to Clean the Air Filter ...................0 ..8 ..
c. Repairing Refrigerant Leaks ................09
d. Preparation for Periods of Non-use ...09
5 Troubleshooting.................................
10
a. Common Problems .........................1.0
b. Troubleshooting Tips ......................1..1.
6 European Disposal
Guidelines..............................................................13

Safety Precautions 1
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:
WARNING
CAUTION
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
● Ask an authorized dealer to install this air conditioner.
Inappropriate 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 a flammable spray such as
hair spray, lacquer or paint near the unit.
This may cause fire or combustion.
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.
The air conditioner can be used by children aged
8 years and older and people with reduced
physical, sensory or mental capabilities, or lack
of experience and knowledge, if they have been
given instruction on how to properly and safely
operate the system.
● 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.
◄Page 4►

◄Page 5►
Indoor Unit Parts and Major Functions 2
Unit P a rts
Air inlet
Electric control cabinet
Air outle t Air filter (on some models)
Drain hose
Refrigerant connecting pipe
Fig. 2 .1
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 malfunction or become less efficient.
In door
COOL Mode
17-32°C
HEAT mode
0-30°C
DRY mode
17-32°C
Temperature (62-90°F) (32-86°F) (62-90°F)
0-50°C
(32-122°F)
Outdoor -15-50°C
Temperature (5-122°F)
(low temperature
cooling models)
-15-24°C
(5-76°F)
0-50°C
(32-122°F)

◄Page 6►
Features
Default Setting Louver Angle Memory Function (Optional)
When the air conditioner restarts after a power
failure, it will default to the factory settings
(AUTO mode, AUTO fan, 24°C (76°F)). This
may cause inconsistencies on the remote
control and unit panel. Use your remote
control to update the status.
Auto-Restart (some models)
In case of power failure, the system will
immediately stop. When power returns, the
Operation light on the indoor unit will flash. 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.
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.
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.
• 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.
• Adjust louvers properly and avoid direct airflow.
Closing curtains during heating also
helps keep the heat in
Doors and windows should be kept
closed

◄Page 7►
Manual Operations 3
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.
Manual button
Operation indicator
Timer indicator
LED display
Infrared receiver
Alarm indicator
PRE-DEF
(pre-heating/defrost)
indicator
Fig. 3.1
• MANUAL button: This button selects the mode in the following order: AUTO, FORCED COOL, OFF.
• FORCED COOL mode: In FORCED COOL mode, the Operation light flashes. The system will then
turn to AUTO after it has cooled with a high wind speed for 30 minutes. The remote control will
be disabled during this operation.
• OFF mode: When the panel is turned OFF, the unit turns on and the remote control is re-enabled.

◄Page 8►
Care and Maintenance 4
Safety Precautions WARNING: DO NOT REMOVE OR
● 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 40°C (104°F) 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.
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 animal hair blocking airflow.
1. For your purchasing unit is a rear ventilated
one, please remove the filter fixed screws
(2 screws) and take down the filter away from
the unit.
Fig. 4 .1
2. For your purchasing unit is a descensional
ventilated one, please push the filter up
slightly to let the position retainer escape
away from the angle fixed holes, and take
off the filter according to the arrow direction
shows in the following.
How To Clean The Air Filter
The filter prevents dust and other particles from entering the
indoor unit. Dust buildup can reduce the efficiency 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. Fig. 4.2

◄Page 9►
3. Remove the air filter. Repairing Refrigerant Leaks
4. Clean the air filter by vacuuming the surface
or washing it in warm water with mild
detergent. WARNING
A. If using a vacuum cleaner, the inlet side
should face the vacuum.
Fig. 4.3
B. If using water, the inlet side should face
down and away from the water stream.
Fig. 4.4
5. Rinse the filter with clean water and allow
it to air-dry. DO NOT let the filter dry in
● 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.
direct sunlight. Storing the Unit While Not in Use
6. Reinstall the filter. 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.

◄Page 10►
Troubleshooting 5
CAUTIONS
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.
• Other abnormal situations.
Common Problems
The following symptoms are not a malfunction and, in most situations, will not require repairs.
Problem Possible Causes
The unit has a 3-minute protection feature that prevents the unit from
overloading. The unit cannot be restarted within three minutes of being
Unit does not
turn on when
pressing ON/
OFF button
The unit changes
from COOL mode
to FAN mode
The indoor unit
emits white mist
Both the indoor
and outdoor units
emit white mist
The indoor unit
makes noises
Both the indoor
unit and outdoor
unit make noises
The outdoor unit
makes noises
turned off.
Cooling and Heating Models: If the Operation light and PRE-DEF (Pre-heating/
Defrost) indicators are lit up, the outdoor temperature is too cold, and the unit’s
anti-cold wind is activated in order to defrost the unit.
In Cooling-only Models: If the “Fan Only” indicator is lit up; the outdoor
temperature is too cold, and the unit’s anti-freeze protection is activated in
order to defrost the unit.
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 o the
compressor. The unit will resume operating when the temperature fluctuates
again.
In humid regions, a large temperature difference between the room’s air
and the conditioned air can cause white mist.
When the unit restarts in HEAT mode after defrosting, white mist may be
emitted due to moisture generated from the defrosting process.
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.
A low hissing sound may occur during operation. This is normal and is caused
by refrigerant gas flowing through both the 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 unit will make different sounds based on its current operating mode.

◄Page 11►
Problem Possible Causes
Dust is emitted from
either the indoor or
outdoor unit
The unit emits a
bad odor
The fan of the
outdoor unit
does not operate
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.
The unit may absorb odors 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.
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
Power failure
The power switch is o
The fuse is burned out
Wait for the power to be restored
Turn on the power
Replace the fuse
working Remote control batteries are dead Replace the remote-control batteries
The unit’s 3-minute protection has
been activated
Temperature setting may be higher
Wait three minutes after restarting the unit
than the ambient room temperature Lower the temperature setting
The heat exchanger on the indoor
or outdoor unit is dirty Clean the affected heat exchanger
Poor cooling
performance
The unit
starts and
The air filter is dirty
The air inlet or outlet of either unit is
blocked.
Doors and windows are open
Excessive heat is generated by
sunlight
Low refrigerant due to leak or
long-term use
There’s too much or too little
refrigerant in the system
There is air, incompressible gas or
foreign material in the refrigeration
system.
Remove the filter and clean it according
to instructions
Turn the unit off, remove the obstruction
and turn it back on
Make sure that all doors and windows are
closed while operating the unit Close
windows and curtains during periods of
high heat or bright sunshine Check for
leaks, re-seal if necessary and top o
refrigerant
Check for leaks and recharge the system
with refrigerant
Evacuate and recharge the system with
refrigerant
stops Determine which circuit is blocked and replace
frequently System circuit is blocked 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
The outdoor temperature is lower
than 7°C (44.5°F)
Poor heating Cold air is entering through doors
performance and windows
Low refrigerant due to leak or
long-term use
Check for leaks and recharge the system
with refrigerant
Make sure that all doors and windows are
closed during use
Check for leaks, re-seal if necessary and
top o refrigerant

◄Page 12►
8 Dual indoor unit (twin model only) communication 9
malfunction
O
9 Other twin model malfunction
10
O
10 Overload protection
1
On
11 Outdoor temperature sensor error
2
On
12 Outdoor condenser pipe sensor
error 3
On
13 Discharge air temperature sensor error 4
On
14 Outdoor EEPROM (Electrically Erasable 5
Programmable Read-Only Memory) error
On
Error Codes
Cause
The number
of flashes
per second
Timer
indicator
Error
Code
1 Indoor EEPROM (Electrically Erasable Programmable
Read-Only Memory) error
1 O E0
2 Indoor and outdoor unit communication malfunction
3 Indoor fan speed malfunction
4 Indoor room temperature sensor error
5 Evaporator coil temperature sensor error
6 Refrigerant leak detection system malfunction
7 Water level alarm malfunction
15 Outdoor fan speed (DC fan motor only) malfunction
16 T2b sensor error
2 O E
1
4 O
E3
5 O
E4
6 O
E5
7 O
EC
8 O
EE
E8
E9
F0
F 1
F2
F3
F4
6 On
F5
7 On
F6
17 Inverter module IPM protection
18 High/Low voltage protection
19 Compressor top overheating protection
20 Outdoor low temperature protection
21 Compressor drive error
1 Flash P0
2 Flash P 1
3 Flash P2
4 Flash P3
5 Flash P4
22 Mode conflict 6 Flash P5
23 Compressor low-pressure protection
24 Outdoor IGBT sensor error
7 Flash P6
8 Flash P7
25 Indoor unit communication malfunction 11 On fa

◄Page 13►
European Disposal Guidelines 6
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 also 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.

The design and specifications are subject to change without prior notice for
product improvement. Consult with the sales agency or manufacturer for details.