Daitsu DOS-12UIDA User manual

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Split Air Conditioner

DS-9UIDA
DS-12UIDA
DS-18UIDA

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 supervi-
sion 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.
This marking indicates that this product should not be disposed with other household
wastes throughout the EU. To prevent possible harm to the environment or human
health from uncontrolled waste disposal, recycle it responsibly to promote the sustaina-
ble reuse of material resources. To return your used device, please use the return and
collection systems or contact the retailer where the product was purchased. They can
take this product for environmental safe recycling.
R410A(R32/125: 50/50):
Content
Operation Notices
Precautions...........................................................................................................1
Parts Name...........................................................................................................6
ScreenOperation Guide
.......................................................................7
Emergency operation .........................................................................................11
Maintenance
Clean and Maintenance......................................................................................11
Malfunction
Malfunction analysis ...........................................................................................15
2087.5
Remote control operation ............

1
Precautions
WARNING
Operation and Maintenance
•This appliance can be used by children aged from 8
years and above and persons with reduced physical,
sensory ormental 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.
•Do not connect air conditioner to multi-purpose socket.
Otherwise, it may cause fire hazard.
•Do disconnect power supply when cleaning air
conditioner. Otherwise, it may cause electric shock.
•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.
•Do not wash the air conditioner with water to avoid
electric shock.
•Do not spray water on indoor unit. It may cause electric
shock or malfunction.
•After removing the filter, do not touch fins to avoid
injury.
•Do not use fire or hair dryer to dry the filter to avoid
deformation or fire hazard.

2
Precautions
WARNING
•Maintenance must be performed by qualified
professionals. Otherwise, it may cause personal injury
or damage.
•Do not repair air conditioner by yourself. It may cause
electric shock or damage. Please contact dealer when
you need to repair air conditioner.
•Do not extend fingers or objects into air inlet or air
outlet. It may cause personal injury or damage.
•Do not block air outlet or air inlet. It may cause
malfunction.
•Do not spill water on the remote controller, otherwise
the remote controller may be broken.
•When below phenomenon occurs, please turn off air
conditioner and disconnect power immediately, and then
contact the dealer or qualified professionals for service.
•Power cord is overheating or damaged.
•There’s abnormal sound during operation.
•Circuit break trips off frequently.
•Air conditioner gives off burning smell.
•Indoor unit is leaking.
•If the air conditioner operates under abnormal conditions,
it may cause malfunction, electric shock or fire hazard.
•When turning on or turning off the unit by emergency
operation switch, please press this switch with an
insulating object other than metal.
•Do not step on top panel of outdoor unit, or put heavy
objects. It may cause damage or personal injury.

3
Precautions
WARNING
Attachment
• Installation must be performed by qualified professionals.
Otherwise, it may cause personal injury or damage.
• Must follow the electric safety regulations when
installing the unit.
• According to the local safety regulations, use qualified
power supply circuit and circuit break.
• Do install the circuit break. If not, it may cause malfunction.
• An all-pole disconnection switch having a contact
separation of at least 3mm in all poles should be
connected in fixed wiring.
• Including an circuit break with suitable capacity, please
note the following table.Air switch should be included
magnet buckle and heating buckle function, it can
protect the circuit-short and overload.
• Air Conditioner should be properly grounded. Incorrect
grounding may cause electric shock.
• Don’t use unqualified power cord.
• Make sure the power supply matches with the
requirement of air conditioner.Unstable power supply
or incorrect wiring or malfunction. Please install proper
power supply cables before using the air conditioner.
• Properly connect the live wire, neutral wire and
grounding wire of power socket.
• Be sure to cut off the power supply before proceeding
any work related to electricity and safety.

4
Precautions
WARNING
•Do not put through the power before finishing installation.
•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.
•The temperature of refrigerant circuit will be high,
please keep the interconnection cable away from the
copper tube.
•The appliance shall be installed in accordance with
national wiring regulations.
•Installation must be performed in accordance with the
requirement of NEC and CEC by authorized personnel
only.
•The air conditioner is the first class electric appliance. It must
be properly grounding with specialized grounding device
by a professional. Please make sure it is always grounded
effectively, otherwise it may cause electric shock.
•The yellow-green wire in air conditioner is grounding
wire, which can’t be used for other purposes.
•The grounding resistance should comply with national
electric safety regulations.
•The appliance must be positioned so that the plug is
accessible.
•All wires of indoor unit and outdoor unit should be
connected by a professional.
•If the length of power connection wire is insufficient,
please contact the supplier for a new one. Avoid
extending the wire by yourself.

5
Precautions
WARNING
•For the air conditioner with plug, the plug should be
reachable after finishing installation.
•For the air conditioner without plug, an circuit break
must be installed in the line.
•If you need to relocate the air conditioner to another
place, only the qualified person can perform the work.
Otherwise, it may cause personal injury or damage.
•Select a location which is out of reach for children and
far away from animals or plants.If it is unavoidable,
please add the fence for safety purpose.
•The indoor unit should be installed close to the wall.
Working temperature range
Indoor side DB/WB (°C) Outdoor side DB/WB (°C)
Maximum cooling 32/23 43/26
Maximum heating 27/- 24/18
NOTICE:
•The operating temperature range (outdoor temperature) for cooling is -15ºC~43ºC;
Heating temperature range for the model without electric heating belt for chassis
is -15ºC~24ºC Heating temperature range for the model with electric heating belt
for chassis is -20ºC~24ºC.

6
Parts Name
NOTICE:
Actual product may be different from above graphics, please refer to actual
products.
(Display content or position may be different from
above graphics, please refer to actual products)
air inlet
panel
lter
aux.button
horizontal louver
air outlet
cooling
indicator
power
indicator
receiver
window
display
heating
indicator
temp.
indicator
drying
indicator
Indoor Unit

ON/OFF
Remote control operation
Remote control name and functions
Note: Make sure that there is nothing between the receiver and the remote control; do not
drop the remote control; do not wet the remote control with any liquid or expose it directly
to sunlight, or place it near any heat source.
SLEEP
Transmitter signal SLEEP Key
NIGHT-TIME OPERATION: key for
adjusting the night-time temperature. When
the unit lights up, by default, the night-time
function is switched off. When the unit is
disconnected, the night-time function is
cancelled. When the night-time function is
selected, SLEEP will appear on the screen.
This way, the timer can be adjusted. In Fan
or Auto mode this function cannot be used.
Remote control
FAN FAN key
FAN: Key for selecting the fan speed.
The default mode is Auto
ON/OFF Key
CLOCK CLOCK Key
MODE MODE Key
CLOCK: Key for adjusting the clock time.
The signal will ash on the screen and,
for 5 seconds, the values can be adjusted by
pressing “+” or “-“. With the signal ashing, if
the Clock is pressed again, the signal
will stop ashing to indicate that the clock has
been adjusted satisfactorily. When the control
is activated, by default the programmed time
is 12.00 and the symbol will appear on
screen. If this symbol does not appear, the
data will be the TIMER value.
FUNCTION: Key for selecting the sequence
mode between: Auto, Cool, Dry, Fan, Heat. The
default mode is Auto (the temperature does not
appear). With the Heat mode, the initial value
is 28 ºC. In the other modes, the initial value is
25 ºC.
ON / OFF: When the unit is switched on and
off, the night-time and timer functions will be
cancelled, but the pre-selected time remains
active.
7

X-FAN
Remote control operation
Remote control name and functions
Note: this is a general remote control manual, and it can be used for multi-function air
conditioners; for some functions, not included in this model, if the corresponding key is
pressed on the remote control, the unit will continue operating in its original status.
+ + Key
To increase the programmed temperature.
By pressing this key, the temperature can
be programmed when the unit is switched
on. If the key is pressed continuously for
more than 2 seconds, the information
will change very quickly until the key is no
longer pressed, then it will send the infor-
mation. In the AUTO mode, the temperature
cannot be selected. The temperature range
is from 16 ºC to 30 ºC.
Remote control
-Key -
To decrease the programmed temperature.
By pressing this key, the temperature can
be programmed when the unit is switched
on. If the key is pressed continuously for
more than 2 seconds, the information will
change very quickly until the key is no
longer pressed, then it will send the infor-
mation. In the AUTO mode, the temperature
cannot be selected.
X-FAN Key
LIGHT LIGHT Key
TURBO TURBO Key LIGHT: key for activating and deactivating the
light on the screen of the inner unit.
When the light is deactivated, the symbol
will disappear from the control screen.
When the unit lights up, by default, the light is
switched on.
In COOL or HEAT mode, press this key to
activate or deactivate the TURBO function.
Once this function is activated, its icon will be
displayed. If the mode or speed is changed, this
function is cancelled automatically.
By pressing this key, in the Refrigeration and
Demoisturising mode, the icon will appear on the
screen, and the inner unit will continue operating
for 10 minutes to dry the inner unit, even though
the unit has been switched off. When the unit
lights up, by default, the X/FAN function is
switched off. In AUTO, FAN and HEAT mode,
the X-FAN function cannot be programmed, and
neither can it be displayed on screen.
8

Key for sequentially activating and deactivating
the direction of the air.
When the button switches off, the slats will
stop in the current position. This is a universal
control, if the control sends the following three
statuses, the swing status of the main unit will be:
When the slat starts to move up and down, if the
Swing function is switched off, the slot will stop in
the current position. It indicates that the slat
swings up and down, through ve positions.
Remote control operation
Remote control name and functions
Note: this is a general remote control manual, and it can be used for multi-function air
conditioners; for some functions , not included in this model, if the corresponding key is
pressed on the remote control, the unit will continue operating in its original status.
TIMER ON +TIMER ON Key
Key for selecting the switch on function for
a specic time. The ON signal will ash on
the screen. The symbol will be hidden,
the numeric section becomes the timer pro-
gramming status. During the 5 seconds of
ashing, use keys + or – to adjust the time
value. Each time they are pressed, they
increase or decrease the value by a minute.
If the key is pressed for 2 seconds
continuously, the data will change very
quickly until the key is no longer pressed,
then it will send the information. Once the
timer has been programmed, activate the
Timer On button again.If pressed a third
time, the timer will be cancelled. Before
programming the timer, correct the time.
Remote control
TIMER OFF TIMER OFF Key
Once the TIMER OFF key has been pres-
sed, the icon will ash to program the timer
switch off. The programming method is the
same as for the TIMER ON key.
SWING key
9

Remote control operation
Operating guide. General functions
1- Press ON/OFF to switch on the unit. (Note: When the
unit is switched off, the slats close automatically)
2- Press the MODE key to select the desired mode or, press
COOL or HEAT to go directly into these respective modes.
3- Select the desired temperature using the keys + and –
(in AUTO mode, it is not necessary to select the temperature).
4- Press the FAN key and select the fan speed:
Automatic, low-average-high-very high.
5- Select the direction of the air ow using the SWING Key
1- Press the SLEEP button for night-time operation,
2- Press TIMER ON and TIMER OFF to program the time on the
timer.
3.- Press the LIGHT button, to switch the light in the display
on or off (this function is not available in some models)
4.- Press the TURBO button to increase or reduce the
temperature quickly.
Operating guide. Optional functions
Introduction for special functions
X-FAN function:
With this function, the moisture in the evaporator of the inner unit will still be removed, to prevent any
mould forming.
1.- With this function activated: When the unit is switched off, the fan will continue
operating
for 10 minutes at low speed. If the inner unit fan is to be stopped manually, press the
X-FAN key
2.- With this function activated: When the unit is switched off by pressing the ON/OFF key,
the unit will stop completely.
AUTO RUN function:
This function allows the unit to automatically select the most suitable operating mode according to the
surrounding ambient temperature. With this function, the temperature will not be displayed in the LCD
screen.
TURBO Function:
With this function, the unit will operate at a very fast fan speed, so as to cool or heat quickly and to
adapt the ambient temperature to the preselected temperature as soon as possible.
10

Remote control operation
Arranging the batteries
LOCK function:
Use this function to lock and unlock the keyboard. The icon indicates that it is locked.
Press the keys + and – simultaneously to lock or unlock.
Adjusting the air direction – SWING:
1- Press the Swing key continuously for more than 2 seconds, and the unit bafes will move and stop, maintaining
their position when the key is released.
2- Under the Swing mode, when the on/off status is changed to , if this button is pressed again 2 sec. later, the
status will switch off directly, if pressed again, in 2 sec. the change in the Swing status will also depend on the
rotation sequence determined beforehand.
Changing ºF to ºC:
To change between Fahrenheit and Centigrade, press the MODE and - key simultaneously, with the unit switched off.
New defrosting function:
What does this mean: once this function has been activated using the remote control, and the unit is in the defrosting
mode, if the unit is switched off using the control, the unit will not stop the defrosting until this function has nished; if
the programmed mode is changed using the control, the last programmed function will not run until the defrosting has
nished.
With this function activated: When the unit is switched off, press the Mode and X-FAN buttons simultaneously to
activate or deactivate this new function. If the unit is in Defrosting mode, H1 will appear on the remote control screen.
If we change to Heat mode, H1 will appear on the remote control screen and will ash for 5 seconds, if we press the
+/- buttons, H1 will disappear and the programmed temperature will be displayed.
When we switch on the remote control, this new defrosting function will be deactivated.
The remote control has 2 x AAA1.5V batteries
1- Remove the lid at the back of the control, by sliding it backwards
2- Remove the old batteries
3- Place two new batteries (AAA 1.5V type), taking into account
their polarity.
4- Replace the lid on the rear of the control
IMPORTANT
● Make sure that the batteries are replaced with two new batteries of the
same kind. Otherwise, the remote control made not work properly.
● Remove the batteries if the equipment is not going to be used for some
time.
● The remote control must be used within the action radius.
● Leave the control at a minimum distance of 1m from the TV or music
centre.
● Do not leave the control near electrical apparatuses or sources of heat.
● If the control does not work properly, remove the batteries and put them
back in again 30 seconds later. If it still does not work properly, change the
batteries. Diagram for changing
the batteries
Battery cover
11

12
Emergency operation
If remote controller is lost or damaged, please use auxiliary button to turn on or
turn off the air conditioner. The operation in details are as below:
As shown in the g. Open panel, press aux. button to turn on or turn off the air
conditioner. When the air conditioner is turned on, it will operate under auto
mode.
panel aux. button
WARNING:
Use insulated object to press the auto button.
Clean and maintenance
WARNING:
■Turn off the air conditioner and disconnect the power before cleaning the air
conditioner to avoid electric shock.
■Do not wash the air conditioner with water to avoid electric shock.
■Do not use volatile liquid to clean the air conditioner.
Clean surface of indoor unit
When the surface of indoor unit is dirty, it is recommended to use a soft dry cloth
or wet cloth to wipe it.
NOTICE:
●Do not remove the panel when cleaning it.

13
Clean and maintenance
Clean lter
1Open panel
Pull out the panel to a certain
angle as shown in the g. 3
Clean lter
●Use dust catcher or water to
clean the filter.
●When the filter is very dirty,
use the water (below 45ºC )
to clean it, and then put it in a
shady and cool place to dry.
2
Remove lter
Remove the lter as
indicated in the g.
4Install lter
Install the lter and then close the
panel cover tightly.
WARNING
■The filter should be cleaned every three months. If there is much dust in the
operation environment, clean frequency can be increased.
■After removing the filter, do not touch fins to avoid injury.
■Do not use fire or hair dryer to dry the filter to avoid deformation or fire
hazard.

14
Clean and maintenance
1.Check whether air inlets and air outlets are blocked.
2.Check whether air switch, plug and socket are in good condition.
3.Check whether filter is clean.
4.Check whether mounting bracket for outdoor unit is damaged or corroded.
If yes, please contact dealer.
5.Check whether drainage pipe is damaged.
1.Disconnect power supply.
2.Clean filter and indoor unit’s panel.
3.Check whether mounting bracket for outdoor unit is damaged or corroded.
If yes, please contact dealer.
Notice for recovery
1.Many packing materials are recyclable materials.
Please dispose them in appropriate recycling unit.
2.If you want to dispose the air conditioner, please contact local dealer or
consultant service center for the correct disposal method.
NOTICE: Checking before use-season
NOTICE: Checking after use-season

15
Malfunction analysis
General phenomenon analysis
Please check below items before asking for maintenance. If the malfunction still
can’t be eliminated, please contact local dealer or qualied professionals.
Phenomenon Check items Solution
Indoor unit
can’t receive
remote
controller’s
signal or
remote con-
troller has no
action.
●Whether it’s interfered
severely (such as static
electricity,stable voltage)?
●Pull out the plug. Reinsert the
plug after about 3 min, and
then turn on the unit again.
●Whether remote controller
is within the signal receiving
range?
●Signal receiving range is 8m.
●Whether there are obstacles? ●Remove obstacles.
●Whether remote controller
is pointing at the receiving
window?
●Select proper angle and point
the remote controller at the
receiving window on indoor
unit.
●Is sensitivity of remote
controller low; fuzzy display
and no display?
●Check the batteries. If the
power of batteries is too low,
please replace them.
●No display when operating
remote controller?
●Check whether remote
controller appears to be
damaged.
If yes, replace it.
●Fluorescent lamp in room? ●Take the remote controller
close to indoor unit.
●Turn off the fluoresent lamp
and then try it again.
No air
emitted from
indoor unit
●Air inlet or air outlet of indoor
unit is blocked?
●Eliminate obstacles.
●Under heating mode, indoor
temperature is reached to set
temperature?
●After reaching to set
temperature, indoor unit will
stop blowing out air.
●Heating mode is turned on
just now?
●In order to prevent blowing
out cold air, indoor unit will
be started after delaying for
several minutes, which is a
normal phenomenon.

16
Malfunction analysis
Phenomenon Check items Solution
Air condi-
tioner can’t
operate
●Power failure? ●Wait until power recovery.
●Is plug loose? ●Reinsert the plug.
●Air switch trips off or fuse is
burnt out?
●Ask professional to replace
air switch or fuse.
●Wiring has malfunction? ●Ask professional to replace it.
●Unit has restarted
immediately after stopping
operation?
●Wait for 3 min, and then turn
on the unit again.
●Whether the function setting
for remote controller is
correct?
●Reset the function.
Mist is
emitted from
indoor unit’s
air outlet
●Indoor temperature and
humidity is high?
●Because indoor air is cooled
rapidly. After a while, indoor
temperature and humidity
will be decrease and mist will
disappear.
Set tempera-
ture can’t be
adjusted
●Unit is operating under auto
mode?
●Temperature can’t be
adjusted under auto mode.
Please switch the operation
mode if you need to adjust
temperature.
●Your required temperature
exceeds the set temperature
range?
●Set temperature range:
16ºC ~30ºC.
Cooling
(heating)
effect is not
good.
●Voltage is too low? ●Wait until the voltage
resumes normal.
●Filter is dirty? ●Clean the filter.
●Set temperature is in proper
range?
●Adjust temperature to proper
range.
●Door and window are open? ●Close door and window.

17
Malfunction analysis
Phenomenon Check items Solution
Odours are
emitted
●Whether there’s odour
source, such as furniture and
cigarette, etc.
●Eliminate the odour source.
●Clean the filter.
Air condition-
er operates
normally
suddenly
●Whether there’s interference,
such as thunder, wireless
devices, etc.
●Disconnect power, put back
power, and then turn on the
unit again.
Outdoor unit
has vapor
●Heating mode is turned on? ●During defrosting under
heating mode, it may
generate vapor, which is a
normal phenomenon.
“Water ow-
ing” noise
●Air conditioner is turned on or
turned off just now?
●The noise is the sound of
refrigerant flowing inside
the unit, which is a normal
phenomenon.
Cracking
noise
●Air conditioner is turned on or
turned off just now?
●This is the sound of friction
caused by expansion and/or
contraction of panel or other
parts due to the change of
temperature.