Kaysun KFC-AY-2T-250D User manual

Wall-mounted Fancoil Type
KFC-AY-2T-250D KFC-AY-2T-400D KFC-AY-2T-600D
KFC-AY-2T-250D1 KFC-AY-2T-400D1 KFC-AY-2T-600D1
KFC-AY-2T-250D2 KFC-AY-2T-400D2 KFC-AY-2T-600D2
Thank you very much for purchasing our air conditioner. Before using your
air conditioner, please read this manual carefully and keep it for future
reference.
OWNER'S MANUAL

Inlet pipe
Return pipe
Drain pipe
Bottom plate
Faceplate
Display panel
Horizontal air deflector
Remote controller
Air inlet
Air outlet
Infrared signal Temperature
receiver display
Operation lamp Timer indicator
Display panel
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owner’s manual
1
1. IMPORTANT SAFETY INFORMATION
To prevent injury to the user or other people and property
damage, the following instructions must be followed. Incorrect
operation due to ignoring of instructions may cause harm or
damage.
The safety precautions listed are divided into two categories. In either
case, important safety information is listed which must be read
carefully.
Failure to observe a warning may result in serious injuries.
Failure to observe a caution may result in injury or damage
to the equipment.
Do not cut off the power supply manually when the air
conditioner running, otherwise malfunction would be
caused.
Ask your dealer for installation of the air conditioner.
Incomplete installation performed by yourself may result in a
water leakage, electric shock, and fire.
Ask your dealer for improvement, repair, and
maintenance.
Incomplete improvement, repair, and maintenance may result
in a water leakage, electric shock, and fire.
In order to avoid electric shock, fire or injury, or if you
detect any abnormality such as smell of fire, turn off the
power supply and call your dealer for instructions.
Never let the indoor unit or the remote controller get wet.
It may cause an electric shock or a fire.
Never press the button of the remote controller with a
hard, pointed object.
The remote controller may be damaged.
Never replace a fuse with that of wrong rated current or
other wires when a fuse blows out.
Use of wire or copper wire may cause the unit to break down
or cause a fire.
It is not good for your health to expose your body to the
air flow for a long time.
Do not insert fingers, rods or other objects into the air
inlet or outlet.
When the fan is rotating at high speed, it will cause injury.
Never use a flammable spray such as hair spray, lacquer
paint near the unit.
It may cause a fire.
Never touch the air outlet or the horizontal blades while
the swing flap is in operation.
Fingers may become caught or the unit may break down.
Never put any objects into the air inlet or outlet.
Objects touching the fan at high speed can be dangerous.
Never inspect or service the unit by yourself.
Ask a qualified service person to perform this work.
Do not dispose this product as unsorted municipal waste.
Collection of such waste separately for special treatment
is necessary.
To prevent water leak, contact your dealer.
When the system is installed and runs in a small room, it is
required to keep the concentration of the water, if by any
chance coming out, below the limit. the cool capacity would
be lower.
Turn off any combustible heating devices, ventilate the
room, and contact the dealer where you purchased the
unit.
Do not use the air conditioner until a service person confirms
that the portion where the water leaks is repaired.
Do not use the air conditioner for other purposes.
In order to avoid any quality deterioration, do not use the unit
for cooling precision instruments, food, plants, animals or
works of art.
Before cleaning, be sure to stop the operation, turn the
breaker off or pull out the supply cord.
Otherwise, an electric shock and injury may result.
In order to avoid electric shock or fire, make sure that an
earth leak detector is installed.
Be sure the air conditioner is grounded.
In order to avoid electric shock, make sure that the unit is
grounded and that the earth wire is not connected to gas or
water pipe, lightning conductor or telephone earth wire.
In order to avoid injury, do not remove the fan guard of
the outdoor unit.
Do not operate the air conditioner with a wet hand.
An electric shock may happen.
Do not touch the heat exchanger fins.
These fins are sharp and could result in cutting injuries.
Do not place items which might be damaged by moisture
under the indoor unit.
Condensation may form if the humidity is above 80%, the
drain outlet is blocked, or the filter is polluted.
After a long use, check the unit stand and fitting for
damage.
If damaged, the unit may fall and result in injury.
To avoid oxygen deficiency, ventilate the room
sufficiently if equipment with burner is used together
with the air conditioner.
Arrange the drain hose to ensure smooth drainage.
Incomplete drainage may cause wetting of the building,
furniture etc.
Never touch the internal parts of the controller.
Do not remove the front panel. Some parts inside are
dangerous to touch, and a machine trouble may happen.
Never expose little children, plants or animals directly to
the air flow.
Adverse influence to little children, animals and plants may
result.
Do not allow a child to mount on the outdoor unit or
avoid placing any object on it.
Falling or tumbling may result in injury.
Do not operate the air conditioner when using a room
fumigation - type insecticide.
WARNING
CAUTION
CAUTION
WARNING

owner’s manual
2
Failure to observe could cause the chemicals to become
deposited in the unit, which could endanger the health of
those who are hypersensitive to chemicals.
Do not place appliances which produce open fire in
places exposed to the air flow from the unit or under the
indoor unit.
It may cause incomplete combustion or deformation of the
unit due to the heat.
Do not install the air conditioner at any place where
flammable gas may leak out.
If the gas leaks out and stays around the air conditioner, a fire
may break out.
The appliance is not intended for use by young children
or infirm persons without supervision.
Young children should be supervised to ensure that they
do not play with the appliance.
DISPOSAL!Do not dispose this product as unsor-
ted municipal waste. Collection of such waste sepa-
rately for special treatment is necessary.
Do not dispose of electrical appliances as unsorted municipal
waste, use separate collection facilities.
Contact your local government for information regarding the
collection systems available.
If electrical appliances are disposed of in landfills or dumps,
Open the faceplate, and you can find the temporary button on
the display panel. (Refer to Fig 2-1)
This function is used to operate the unit temporarily in case you
misplace the remote controller, or its batteries are exhausted.
Two modes including AUTO and FORCED COOL can be
selected through the TEMPORARY BUTTON. Once you push
this button, the air conditioner will run in such order: AUTO,
FORCED COOLOFF,and back to AUTO.
1
AUTO
The OPERATION lamp is lit, and the air conditioner will run
under AUTO mode. The remote controller operation is enabled
to operate according to the received signal.
2
FORCED COOL
The OPERATION lamp flashes, the air conditioner will turn to
AUTO after it is enforced to cool with a wind speed of HIGH for
30 minutes. The remote controller operation is disabled.
3
OFF
The OPERATION lamp goes off. The air conditioner is OFF
while the remote controller operation is enabled.
NOTE
This manual does not include Remote Controller
Operations, see the<<Remote Controller Owner's
manual>> packed with the unit for details.
hazardous substances can leak into the groundwater and get
into the food chain, damaging your health and well-being
2. PARTS NAMES
The air conditioner consists of the indoor unit, the outdoor unit,
the connecting pipe and the remote controller.
Temporary button
C faceplate
3. OPERATION RANGE
Use the system in the following temperature for safe and
effective operation.
Table 3-1
S faceplate Temporary button
Temporary button
NOTE
1
If air conditioner is used outside the above conditions, it
may cause the unit to function abnormally.
2 The phenomenon is normal that the surface of air
conditioning may condense water when the relative larger
humidity in room, please close the door and window.
3
Optimum performance will be achieved within these
operating temperature range.
4
Water system operating pressure: Max: 1.6MPa, Min:
0.15MPa.
Infrared signal Temperature
4. HINTS FOR ECONOMICAL OPERATION
The following should be noticed to ensure an economical
operation.
Operation lamp Timer indicator
Fig.2-1
receiver
display
Temperature
Mode
Cooling operation
Outdoor
temperature
Room
temperature
water inlet
temperature
21°C"43°C
17°C"32°C
3°C"20°C
Heating operating
(cooling only
type without)
-5°C"24°C
0°C"30°C
30°C"70°C

owner’s manual
3
Adjust the air flow louver properly and avoid direct air flow to
room inhabitants.
Adjust the room temperature properly for a comfortable
environment. Avoid excessive heating or cooling.
Prevent direct sunlight during cooling operation by using
curtains or blinds.
Ventilate often. Extended use requires special attention to
ventilation.
Adjust vertical air
Open the horizontal air deflector, and then manually adjust
vertical air deflector.
C faceplate
Keep doors and windows closed. If the doors and windows
remain open, air will flow out of your room causing a decrease
in the cooling or heating effect.
Never place objects near the air inlet or the air outlet of the unit.
It may cause deterioration in the effect or stop the operation.
Never place objects near the air inlet or the air outlet of the unit.
It may cause deterioration in the effect or stop the operation.
Set the timer .
If you don't plan to use the unit for a long time, please take the
batteries from the remote controller. When the power is on,
some energy will be consumed, even if the air conditioner isn't
in operation. So please disconnect the power to save energy.
Keep the indoor unit and remote controller at least 1 m away
from televisions, radios, stereos, and other similar equipment.
Failing to do so may cause static or distorted pictures.
A dirty air filter will reduce cooling or heating efficiency, please
clean it once two weeks.
S faceplate
6. MAINTENANCE
Vertical air deflector
Vertical air deflector
Fig.5-2
5. ADJUSTING AIR FLOW DIRECTION
While the unit is in operation, you can adjust the air flow louver
to change the flow direction and naturalize the room
temperature evenly. Thus, you can enjoy it more comfortably.
Adjust horizontal air
Adjust horizontal air deflector by remote controller.
C faceplate
CAUTION
Before you clean the air conditioner, be sure the power
supply is off.
Check if the wiring is not broken off or disconnected.
Disconnect the power supply before cleaning and
maintenance. Use dry cloth to clean the unit.
Use a dry cloth to wipe the indoor unit and remote
controller.
A wet cloth may be used to clean the indoor unit if it is
very dirty.
Never use a damp cloth on the remote controller.
Do not use a chemically-treted duster for wiping or leave
such material on the unit for long.
it may damage or fade the surface of the unit.
S faceplate
Horizontal air deflector
Horizontal air deflector
Fig.5-1
Do not use benzine, thinner, polishing powder, or similar
solvents for cleaning.
These may cause the plastic surface to crack or deform.
Maintenance after a long stop period
(eg. at the beginning of the season)
Check and remove everything that might be blocking inlet
and outlet vents of indoor units and outdoor units.
Clean air filters and casings of indoor units.
Refer to "Cleaning the air filter" for details on how to proceed
and make sure to install cleaned air filters back in the same
position.

owner’s manual
4
Maintenance before a long stop period
(eg. at the beginning of the cold season)
Drain the water system(for all heat exchangers).
To avoid the risk of rupture due to freezing, it is advisable to
drain the water from the system at the beginning of the cold
season
Maintenance before a long stop period
(eg. at the end of the season)
Let the indoor units run in fan only operation for about half a
day in order to dry the interior of the units.
Clean air filters and casings of indoor units. Refer to "
Cleaning the air filter" for details on how to proceed and
make sure to install cleaned air filters back in the same
position.
S faceplate
air filter
net of clear air
mesh enclosure of clear air
Fig.6-1
Cleaning the air filter and net of clear air
The air filter can prevent the dust or other particulate from
going inside. In case of blockage of the filter , the working
efficiency of the air conditioner may greatly decrease .
Therefore, the filter must be cleaned once two weeks during
long time usage.
If the air conditioner is installed in a dust place, clean the the
air filter frequent.
If the accumulated dust is too heavy to be cleaned, please
replace the filter with a new one(replaceable air filter is an
optional fitting).
1
Open the faceplate, then Dismantle the air filter and net of
clear air.
2
Clean the air filter
Vacuum cleaner or pure water may be used to clean the air
filter.If the dust accumulation is too heavy , please use soft
brush and mild detergent to clean it and dry out in cool place
The air-in side should face up when using vacuum cleaner.
(Refer to Fig 6-2)
The air-in side should face down when using water.
(Refer to Fig 6-3)
3
Re-install the air filter and net of clear air.
4
Close the faceplate#$
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CAUTION
Do not dry out the air filter under direct sunshine or with fire.
C faceplate
Fig.6-2
Fig.6-3
7. FOLLOWING SYMPTOMS ARE NOT AIR
CONDITIONER TROUBLES
Symptom 1: The system does not operate
The air conditioner does not start immediately after the ON/OFF
button on the remote controller is pressed.
If the operation lamp lights, the system is in normal condition.
To prevent overloading of the compressor motor, the air
conditioner starts 3 minutes after it is turned ON.
If the operation lamp and the "PRE-DEF indicator(cooling and
heating type) or fan only indicator(cooling only type)" light, it
means you choose the heating model, When just starting, if the
compressor has not started, the indoor unit appears "anti-cold
wind" protection because of its overflow outlet temperature.
air filter
net of clear air
mesh enclosure of clear air
Symptom 2: Change into the fan mode during cooling
mode
In order to prevent the indoor evaporator frosting, the system
will change into fan mode automatically, restore to the cooling
mode after soon.
When the room temperature drops to the set temperature, the
compressor goes off and the indoor unit changes to fan mode;
when the temperature rises up, the compressor starts again. It
is same in the heating mode.

owner’s manual
5
Symptom 3: White mist comes out of a unit
Symptom 3.1: Indoor unit
When humidity is high during cooling operation If the interior of
an indoor unit is extremely contaminated, the temperature
distribution inside a room becomes uneven. It is necessary to
clean the interior of the indoor unit. Ask your dealer for details
on cleaning the unit. This operation requires a qualified service
person.
Symptom 3.2: Indoor unit, outdoor unit
When the system is changed over to heating operation after
defrost operation Moisture generated by defrost becomes steam
and is exhausted.
Symptom 4: Noise of air conditioners cooling
Symptom 4.1: Indoor unit
A continuous low "shah" sound is heard when the system is in
cooling operation or at a stop.
When the drain pump (optional accessories) is in operation, this
noise is heard.
A "pishi-pishi" squeaking sound is heard when the system stops
after heating operation.
Expansion and contraction of plastic parts caused by
temperature change make this noise.
Symptom 4.2: Outdoor unit
When the tone of operating noise changes.
This noise is caused by the change of frequency.
Symptom 5: Dust comes out of the unit
When the unit is used for the first time in a long time.
This is because dust has gotten into the unit.
Symptom 6: The units can give off odours
The unit can absorb the smell of rooms, furniture, cigarettes,
etc., and then emit it again.
Table 8-1
Symptom 7: The outdoor unit fan does not spin.
During operation. The speed of the fan is controlled in order to
optimize product operation.
Table 7-1
Malfunction code
Malfunction
EE
DC motor malfunction
E3
T2 evaporator sensor malfunction
E2
T1 evaporator sensor malfunction
E8
Water-level alarm malfunction
E7
EEPROM communication error
8. TROUBLESHOOTING
8.1. Troubles and causes of air conditioner
If one of the following malfunctions occur, stop operation, shut
off the power, and contact with your dealer.
The operation lamp is flashing rapidly (twice every second)
This lamp is still flashing rapidly after turning off the power and
turn on again.
Remote controller receives malfunction, or the button does not
work well.
A safety device such as a fuse, a breaker frequently actuates.
Water leaks from indoor unit.
Other malfunctions.
8.2. Troubles and causes of remote controller
Before asking for serving or repairing, check the following
points.
(Refer to Table 8-2)
Symptoms
Causes
Solution
Unit does not start
Power failure.
Power switch is off.
Fuse of power switch may have burned.
Batteries of remote controller exhausted
or other problem of controller.
Wait for the comeback of power.
Switch on the power.
Replace the fuse.
Replace the batteries or check the
controller.
Air flowing normally but
completely can't cooling
Temperature is not set correctly.
Set the temperature properly.
Low cooling effect
Indoor unit heat exchanger is dirty.
The air filter is dirty.
Inlet of indoor units is blocked.
Doors and windows are open
Sunlight directly shine.
Too much heat resource.
Outdoor temp. is too high.
Clean the heat exchanger.
Clean the air filter.
Eliminate all dirties and make air
smooth.
Close doors and windows.
Make curtains in order to shelter from
sunshine.
Reduce heat source.
AC cooling capacity reduces (normal).
Outdoor temperature is lower than 7 C .
Doors and windows not completely
closed.
Use heating device.
Close doors and windows.
Low heating effect

Table 8-2
Symptoms
Causes
Solution
Check whether the MODE
When the automatic mode is
indicated on the display is
selected, the air conditioner will
"AUTO"
automatically change the fan
The fan speed cannot be
changed.
speed.
Protection against hot wind in
Reduce the temperature of inlet in
cooling mode.
cooling mode rise the temperature of
Protection against cold wind in
inlet in heating mode.
heating mode.
The remote controller signal is
not transmitted even when
the ON/OFF button is pushed.
Check whether the batteries
in the remote controller are
exhausted.
The power supply is off.
The TEMP. indicator does
not come on.
Check whether the MODE
indicated on the display is
FAN ONLY
The temperature cannot be set during
FAN mode.
The indication on the display
Check whether the timer
The air conditioner operation will
disappears after a lapse of
operation has come to an
stop up to the set time
time.
end when the TIMER OFF
is indicated on the display.
Check whether the timer
Up to the set time, the
The TIMER ON indicator
goes off after a lapse of
certain time.
operation is started when
the TIMER ON is indicated
on the display.
air conditioner will automatically
start, and the appropriate
indicator will go off.
No receiving tone sounds
from the indoor unit even
when the ON/OFF button is
pressed.
Check whether the signal
transmitter of the remote
controller is properly directed
to the infrared signal receiver
of the indoor unit when the
Directly transmit the signal transmitter of
the remote controller to the
infrared signal receiver of the
indoor unit, and then repeatly
push the ON/OFF button twice.
ON/OFF button is pressed.

MDV08U-012CW
202000171075

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