Ecoair ECO940SD User manual

1
Room Air Conditioners
R410A Split Type – Y Series
DC INVERTER
ECO940SD
ECO120SD
ECO1840SD
•Please read this installation manual completely before installing the product.
•When the power cord is damaged, replacement work shall be performed by
authorized personnel only.
•Installation work must be performed in accordance with the national wiring
standards by authorized personnel only.
•Contact the authorised service technician for repair or maintenance of this unit.
User Manual
Register your air conditioner
Model information can be found on the CE
label.
Please register your product online at
www.ecoair.org. For your future
convenience, record the model information
below.
____________________________________
MODEL NUMBER
____________________________________
SERIAL NUMBER
____________________________________
PURCHASE DATE

2
Congratulations!
You have purchased the very latest in room air conditioner technology. Your new EcoAir high
efficiency room air conditioner will give you many years of dependable service. Many features
have been built into your EcoAir air conditioner to assure quiet operation, the best circulation
of cool, dry air, functional controls, and the most economical operation.

3
Table of contents
Disposal 4
Safety Precautions 5
Parts Identification 8
Special Function 9
Manual Operation 10
Adjusting Air Flow Direction 10
Optimal Operation 11
How the Air Conditioner works 12
Operating Tips 12
Cleaning and Maintenance 14
Troubleshooting Tips 16
Inside you will find many helpful hints on how to use and maintain your air
conditioner properly. Just a little preventative care on your part can save you a great
deal of time and money over the life of your air conditioner. You'll find many answers
to common problems in the chart of troubleshooting tips. If you review the chart of
Troubleshooting Tips first, you may not need to call for service.
CAUTION
•Contact an authorised service technician for repair or maintenance of this
unit. Contact the installer for installation of this unit.
•The air conditioner is not intended for use by young children or invalids
without supervision.
•Young children should be supervised to ensure that they do not play with the
air conditioner.
•If the power cord is to be replaced, replacement work shall be performed by
authorised personnel only.
•Installation work must be performed in accordance with the national wiring
standards by authorised personnel only.
IMPORTANT NOTES:
1. Do not operate unit with horizontal louver in closed position.
2. Do not operate unit without the air filter.

4
Disposal
When using this air conditioner in the European countries, the follow
information must be followed:
DISPOSAL: Do not dispose this product as unsorted waste.
It is prohibited to dispose of this appliance in domestic household waste. For
disposal:
A) Contact your local council for disposal.
B) The manufacture will take back the old appliance for disposal when you replace with a
new product.
C) Old products contain valuable resources, which should be recycled as scrap metal.
Wild disposal of waste in forests and landscapes endangers your health when hazardous
substances leak into the ground-water and find their way into the food chain.

5
Safety Precautions
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 seriousness is classified by the following indications.
WARNING This symbol indicates the possibility of death or serious injury.
CAUTION This symbol indicates the possibility of injury or damage to property.
Meanings of symbols used in this manual are as shown below.
Never do this.
Always do this.
!
Plug in power
plug properly.
WARNING
Do not operate or stop the
unit by inserting or pulling
out the power plug.
Do not damage or use an
unspecified power cord.
Otherwise, it may cause
electric shock or fire due to
excess heat generation.
Do not modify power cord
length or share the outlet
with other appliances.
It may cause electric shock or
fire due to heat generation.
Always ensure
effective earthing.
No earthing may cause electric
shock.
It may cause electric shock or fire
due to heat generation.
Do not operate with
wet hands or in damp
environment.
It may cause electric shock.
Do not allow water to run
into electric parts.
It may cause failure of machine
or electric shock.
It may cause electric shock or fire. If
the power cord is damaged, it must
be replaced by the manufacturer or
an authorised service centre or a
similarly qualified per-son in order
to avoid a hazard.
Do not direct airflow at
room occupants only.
This could damage your health.
Always install circuit
breaker and a dedicated
power circuit.
No installation may cause fire
and electric shock.
Unplug the unit if
strange sounds, smell or
smoke comes from it.
It may cause fire and electric
shock.
Keep firearms away.
It may cause fire.
Do not use the socket if it is
loose or damaged.
It may cause fire and electric
shock.
Do not use the power cord
close to heating appliances.
It may cause fire and electric
shock.
Do not open the unit
during operation.
It may cause electric shock.
Do not use the power cord near
flammable gas or combustibles, such
as gasoline, benzene, thinner, etc.
It may cause an explosion or fire.
Ventilate room before operating air
conditioner if there is a gas leakage
from another appliance.
It may cause explosion, fire and, burns.
Do not disassemble or modify unit.
It may cause failure and electric shock.

6
! CAUTION
When the air filter is to be
removed, do not touch the
metal parts of the unit.
It may cause an injury.
When the unit is to be
cleaned, switch off, and turn
off the circuit breaker.
Do not clean unit when
power is on as it may cause
fire and electric shock, it may
cause an injury.
Stop operation and close the
window in storm or hurricane.
Operation with windows
opened may cause wetting
of indoor and soaking of
house-hold furniture.
Do not place obstacles
around air-inlets or inside of
air-outlet.
It may cause failure of
appliance or accident.
Do not use strong detergent
such as wax or thinner. Use
a soft cloth for cleaning.
Appearance may be
deteriorated due to change of
product colour or scratching
of its surface.
Do not clean the air
conditioner with water.
Water may enter the unit and
degrade the insulation. It may
cause an electric shock.
Do not put a pet or house
plant where it will be
exposed to direct air flow.
This could injure the pet or plant.
Hold the plug by the head of
the power plug when taking it
out.
Failure to do so may cause
electric shock and damage.
Ensure that the installation bracket of
the outdoor appliance is not damaged
due to prolonged exposure.
If bracket is damaged, there is
concern of damage due to
falling of unit.
Do not place heavy object on
the power cord and take care so
that the cord is not compressed.
There is danger of fire
or electric shock.
Ventilate the room well
when used together with a
stove, etc.
An oxygen shortage may occur.
Do not use for special purposes.
Do not use this air conditioner to
preserve precision devices, food,
pets, plants, and art objects.
It may cause deterioration
of quality, etc.
Turn off the main power
switch when not using the unit
for a long time.
It may cause failure of product
or fire.
Always insert the filters
securely. Clean filter
once every two weeks.
Operation without filters
may cause failure.
Do not drink water drained
from air conditioner.
It contains contaminants and
could make you sick.
Use caution when unpacking and installing.
Sharp edges could cause injury.
If water enters the unit, turn the unit off at the power
outlet and switch off the circuit breaker. Isolate
supply by taking the power-plug out and contact a
qualified service technician.

7
Preparing for operation
1. Contact an installation specialist for installation.
2. Plug in the power plug properly.
3. Do not use a damaged or non-standard power cord.
4. Do not share the same outlet with other appliances.
5. Do not use an extension cord.
6. Do not start/stop operation by plugging/unplugging the power cord.
Usage
1. Exposure to direct airflow for an extended period of time could be hazardous to your
health. Do not expose occupants, pets, or plants to direct airflow for extended periods of
time.
2. Due to the possibility of oxygen deficiency, ventilate the room when used together
with stoves or other heating devices.
3. Do not use this air conditioner for non-specified special purposes (e.g. Preserving
precision devices, food, pets, plants, and art objects). Usage in such a manner could
harm such property.
Cleaning and maintenance
1. Do not touch the metal parts of the unit when removing the filter. Injuries can occur
when handling sharp metal edges.
2. Do not use water to clean inside the air conditioner. Exposure to water can destroy
the insulation, leading to possible electric shock.
3. When cleaning the unit, first make sure that the power and circuit breaker are turned off.
Operating Temperature
Temperature | Mode Cooling operation Heating operation Drying operation
Room temperature ≥17°C ≤30°C > 10°C
0°C ~ 50°C
Outdoor temperature
(-15°C ~ 50°C: For
the models with low
temperature cooling
system)
-15°C ~ 34°C 0°C ~ 50°C
CAUTION:
1. If air conditioner is used outside of the above conditions, certain safety protection features
may come into operation and cause the unit to function abnormally.
2. Room relative humidity less than 80%. If the air conditioner operates in excess of this
figure, the surface of the air conditioner may attract condensation. Please sets the
vertical air flow louver to its maximum angle (vertically to the floor), and set HIGH fan
mode.
3. Optimum performance will be achieved within this operating temperature.

____________________________________________________________________________________
8
Parts Identification
Indoor Unit
1. Display window
2. Front panel
3. Panel frame
4. Chassis
5. Air filter
6. Panel brace
7. Manual control button
8. Connecting pipe
9. Drain hose
10. Remote controller holder
11. Remote controller
Outdoor Unit
12. Connecting cable
13. Connective pipe
14. Stop valve
DISPLAY WINDOW
DEFROST operation display
Displayed when the air conditioner
starts defrosting automatically or
when the warm air control feature is
activated in heating operation.
Operation Frequency display
This display is separated into five
zones. The zones illuminate based
on the compressor current frequency.
For example, higher frequency
will illuminate more zones.

____________________________________________________________________________________
9
Special Function
CLEAN AIR function (on some models)
Improving the quality of indoor air is one of the mission of an air conditioner. This air
conditioner is equipped with ionizer or Plasma Dust Collector (Depending on
specific configuration of the model). With the anions generated by Ionizer, the air
circulation of the air conditioner fills the room with refreshing, natural and healthy
air. The Plasma Dust Collector generates an high voltage ionization zone, through
which the air is converted to plasma. Inside the air most of the dust, smoke, and
pollen particles are captured by the electrostatic filter.
SELF CLEAN function
Function used after the Shut Down of cooling operation to clean the Evaporator
and keep it as fresh for the next operation.
The unit will operate as following sequence:
FAN ONLY mode at Low fan speed--Heating operation with LOW fan speed(applicable to
cooling & heating models only) ---FAN ONLY operation--Stop Operation---Turn off.
Note:
This function is only available under COOL (AUTO COOL, FORCED COOL)
and DRY mode.
Before select the function, it is recommended to run the air conditioner under
Cooling operation for about half an hour. Once the Self Clean function is activated,
all TIMER settings will be cancelled.
During Self Cleaning operation, when press the SELF CLEAN button on the
remote controller again will stop the operation and turn off the unit automatically.
Follow Me function
The remote control serves as a remote thermostat allowing for the precise
temperature control at its location.
To activate the Follow Me feature, point the remote control towards the unit and
press the Follow Me button. The remote display is actual temperature at its location.
The remote control will send this signal to the air conditioner every 3 minutes
interval until press the Follow Me button again. If the unit does not receive the
Follow Me signal during any 7 minute interval, the Follow Me mode will be cancelled
automatically.
Anti-mildew function (on some models)
When turns off the unit on COOL, DRY, AUTO (Cool) mode, the air conditioner
will continue operating for about 10 minutes(depending on models) at LOW fan
speed.
This will help to dry up the condensed water inside the evaporator, and prevent the
breeding of mildew.
Under Anti-mildew operation, do not restart the air conditioner until the unit is
completely off.

____________________________________________________________________________________
10
Manual Operation
NOTE: The unit must be turned off before operating
the manual control button. If the unit is operational,
continue pressing the manual control button until the
unit is off.
1 Grasp both sides of the panel and pull it down, the
panel opened upward to an angle of 15 ° . Push the
panel upward and then lift it up.
2 One press of the manual control button will lead to
the forced AUTO operation. If press the button
twice within five seconds, the unit will operate
under forced COOL operation.
3 Close the panel firmly to its original position.
CAUTION:
●This button is used for testing purposes only. You
had better not choose it.
●To restore the remote controller operation, use the
remote controller directly.
ADJUSTING AIR FLOW
•Adjust the air flow direction properly otherwise, it
might cause discomfort or cause uneven room
temperatures.
•Adjust the horizontal louver using the remote
controller.
•Adjust the vertical louver manually or by the
remote controller(depending on the models)
To set the vertical air flow(Up--Down) direction
Perform this function while the unit is in operation. Use
the remote controller to adjust the air flow direction.
The horizontal louver can be moved at a angle of 6°for
each press or set to move up and down automatically.
Please refer to the “REMOTE CONTROLLER
ILLUSTRATION” for details.
To set the horizontal air flow direction (left - right)
Adjust the vertical louver manually using the lever on
the left or right side of the vertical louver arm
(Depending on model). Take care not to catch fingers
on the fan, horizontal louver or to damage vertical
louvers. When the air conditioner is in operation and
the horizontal louver is in a specific position, move the
lever at left (or right, depending on model) end of the
air outlet to the desired position. NOTE: For some
models, it can be controlled automatically by the
remote controller. Please refer to the “REMOTE
CONTROLLER ILLUSTRATION” for details.

____________________________________________________________________________________
11
CAUTION
•The SWING buttons will be disabled when the air conditioner is
not in operation.
•Do not operate the air conditioner for long periods with the air
flow direction set downward in cooling or dry mode. Otherwise,
condensation may occur on the surface of the horizontal louvre
causing moisture to drop on to the floor or furnishing.
•Do not move the horizontal louvre manually. Always use the
SWING button. If you move this louvre manually, it may
malfunction during operation. If the louvre malfunctions, stop
the air conditioner once and restart it.
•When the air conditioner is started immediately after it is
•stopped, the horizontal louver might not move for approximately
10 seconds.
•Open angle of the horizontal louvre should not be set too small,
as Cooling or Heating performance may be impaired due to too
restricted air flow area.
•Do not operate unit with horizontal louvre in closed position.
• When the air conditioner is connected to power (initial power),
the horizontal louvre may generate a sound for 10 seconds, this
is a normal operation.
Optimal operation
To achieve optimal performance, please note the following:
•Adjust the air flow direction correctly so that it is not directed on people.
•Adjust the temperature to achieve the highest comfort level. Do not adjust the unit to
excessive temperature levels.
•Close doors and windows on COOL or HEAT modes, otherwise performance may be
reduced. Use Timer ON button on the remote control to select a time you want to start
your air conditioner.
•Do not put any object near air inlet or air outlet, as the efficiency of the air conditioner
may be reduced and the air conditioner may stop running.
•Clean the air filter periodically, otherwise cooling or heating performance may be
reduced. Do not operate unit with horizontal louvre in closed position.
Suggestion: For the unit adopts an Electric Heater, when the outside ambient temperature is
below 0°C, we strongly recommend you to keep the machine plugged in order to guarantee it
running smoothly.

____________________________________________________________________________________
12
How The Air Conditioner Works
AUTO operation
•When you set the air conditioner in AUTO mode, it will
automatically select cooling, heating (cooling/heating
models only), or fan only operation depending on what
temperature you have selected and the room temperature.
The air conditioner will control room temperature
automatically round the temperature point set by you.
•If the AUTO mode is uncomfortable, you can select desired
conditions manually.
SLEEP operation
When you push SLEEP button on remote controller during
cooling, heating(cooling only type without), or AUTO operation ,
the air conditioner will automatically increase (cooling) or
decrease (heating) 1°C per hour for the first 2 hours, then hold
steady for the next 5 hours, after that it will switch off. This
characteristic maintains both energy saving and comfort in night
operation.
DRYING operation
•The fan speed will be automatically controlled under dry
operation.
•During the dry operation, if the room temperature is lower
than 10°C, the compressor stops operation and restarts until
the room temperature is above 12°C.
Operation Tips
The following events may occur during normal operation.
1. Protection of the air conditioner.
Compressor protection
•The compressor can't restart for 3 minutes after it stops. Anti-cold air (Cooling and heating models only)
•The unit is designed not to blow cold air on HEAT mode, when the indoor heat exchanger is in one of the
following three situations and the set temperature has not been reached.
A) When heating has just starting.
B) Defrosting.
C) Low temperature heating.
•The indoor or outdoor fan stop running when defrosting (Cooling and heating models only). Defrosting
(Cooling and heating models only)
•Frost may be generated on the outdoor unit during heat cycle when outdoor temperature is low and humidity
is high resulting in lower heating efficiency of the air conditioner.
•During this condition air conditioner will stop heating operation and start defrosting automatically.
•The time to defrost may vary from 4 to 10 minutes according to the outdoor temperature and the amount of
frost build-up on the outdoor unit.

____________________________________________________________________________________
13
2. A white mist coming out from the indoor unit
•A white mist may generate due to a large temperature difference between air inlet and air outlet on COOL
mode in an indoor environment that has a high relative humidity.
•A white mist may generate due to moisture generated from defrosting process when the air conditioner
restarts in HEAT mode operation after defrosting.
3. Low noise of the air conditioner
•You may hear a low hissing sound when the compressor is running or has just stopped running. This
sound is the sound of the refrigerant flowing or coming to a stop.
•You can also hear a low "squeak" sound when the compressor is running or has just stopped running.
This is caused by heat expansion and cold contraction of the plastic parts in the unit when the
temperature is changing.
•A noise may be heard due to louver restoring to its original position when power is first turned on.
4. Dust is blown out from the indoor unit.
This is a normal condition when the air conditioner has not been used for a long time or during first use of the
unit.
5. A peculiar smell comes out from the indoor unit.
This is caused by the indoor unit giving off smells permeated from building material, from furniture, or smoke.
6. The air conditioner turns to FAN only mode from COOL or HEAT (For cooling and heating models
only) mode.
When indoor temperature reaches the temperature setting on air conditioner, the compressor will stop
automatically, and the air conditioner turns to FAN only mode. The compressor will start again when the
indoor temperature rises on COOL mode or falls on HEAT mode (For cooling and heating models only) to the
set point.
7. Dripping water may generate on the surface of the indoor unit when cooling in a high relatively
humidity (relative humidity higher than 80%). Adjust the horizontal louver to the maximum air outlet
position and select HIGH fan speed.
8. Heating mode (For cooling and heating models only)
The air conditioner draws in heat from the outdoor unit and releases it via the indoor unit during heating
operation. When the outside temperature falls, heat drawn in by the air conditioner and will decrease
accordingly. At the same time, heat loading of the air conditioner increases due to larger difference between
indoor and outdoor temperature. If a comfortable temperature can't be achieved by the air conditioner, we
suggest you use a supplementary heating device.
9. Auto-restart function
Power failure during operation will stop the unit completely.
For the unit without Auto-restart feature, when the power restores, the OPERATION indicator on the indoor
unit starts flashing. To restart the operation, push the ON/OFF button on the remote controller. For the unit
with Auto-restart feature, when the power restores, the unit restarts automatically with all the previous settings
preserved by the memory function.
10. Lightning or a car wireless telephone operating nearby may cause the unit to malfunction. Disconnect
the unit with power and then re-connect the unit with power again. Push the ON/OFF button on the remote
controller to restart operation.

____________________________________________________________________________________
14
Cleaning and Maintenance
WARNING
It is necessary to stop the air conditioner and disconnect the power supply before cleaning.
Cleaning Indoor Unit & Remote
Controller
CAUTION
Use a dry cloth to wipe the indoor unit and
remote controller.
A cloth dampened with cold water may be
used on the indoor unit if it is very dirty.
The front panel of the indoor unit can be
removed and cleaned with water. Then wipe it
with a dry cloth. Do not use a chemically
treated cloth or duster to clean the unit.
Do not use benzene, thinner, polishing
Powder or similar solvents for cleaning.
These may cause the plastic surface to crack
or deform.
Cleaning the air filter
NOTE: Supply power must be disconnected
before cleaning the indoor unit.
A clogged air filter reduces the cooling
efficiency
of this unit. Please clean the filter every
month or
more often if necessary.
1. Push the front panel up sprightly,
then lift it upward to an angle of
about 20 , do not force to open it
more larger.
2. Use the panel brace to support the
front panel and remain it open as
shown in the picture.
3. Take hold of the handle of the air
filter and lift it up slightly to take it out
from the filter holder, and then pull it
downwards.
4. Remove the AIR FILTER from the
indoor unit.
•Clean the AIR FILTER once two
weeks.
•Clean the AIR FILTER with a
vacuum cleaner or water, and then
dry it up in cool place.

____________________________________________________________________________________
15
•Remove the air freshening filter from
its support frame.
•Clean the air freshening filter at least
once a month, and replace it every
4-5 months. Clean it with vacuum
cleaner, and then dry it in cool place.
•Remove the Plasma dust collector
from its support frame as shown in
the Figure on the left (on some
models).
Do not touch the Plasma dust collector
within 10 minutes after opening the inlet
grill; it may cause an electric shock.
Clean the Plasma dust collector with mild
detergent or water and dry in the sunlight for
two hours.
Before re-install the Plasma dust collector,
check whether the Y Series or support
frame is damaged or not.
Install the air freshening filter back into
position.
Insert the upper portion of air filter back into
the unit taking care that the left and right
edges line up correctly and place filter into
position.
CAUTION
• Do not touch the metal parts of the
unit when removing the filter. Injuries can
occur when handling sharp metal edges.
• Do not use water to clean inside the
air conditioner. Exposure to water can
destroy the insulation, leading to possible
electric shock.
• When cleaning the unit, first make
sure that the power and circuit breaker are
turned off

____________________________________________________________________________________
16
TROUBLE SHOOTING TIPS
Malfunctions and Solutions
Stop the air conditioner immediately if one of the following faults occurs. Disconnect the
power and contact the nearest customer service centre.
OPERATION indicator or other indicators flash rapidly (5 times every second) and this flash
can't be fixed by disconnecting the power, and then connect it in again.
Trouble
Fuse blows frequently or circuit breaker trips frequently.
Other objects or water penetrate the air conditioner.
The remote controller won't work or works abnormally.
Other abnormal situations.
Malfunctions
Cause What should be done?
Unit does not
Power cut Wait for power to be restored.
start
Unit may have become unplugged.
Check that plug is securely in wall
receptacle.
Fuse may have blown. Replace the fuse.
Battery in Remote controller may
Replace the battery.
have been exhausted.
The time you have set with timer
Wait or cancel timer setting.
is incorrect.
Unit not cooling
Inappropriate temperature Set temperature correctly. For
or heating
setting. detailed method please refer to
(Cooling/ heating
"Using remote control " section.
models only)
Air filter is blocked. Clean the air filter.
room very well
Doors or Windows are open. Close the doors or windows.
while air flowing
Air inlet or outlet of indoor or Clear obstructions away first, then
out from the air
outdoor unit has been blocked.
restart the unit.
conditioner
Compressor 3 minutes
Wait.
protection has been activated.
If the trouble has not been corrected, please contact a local dealer or the nearest customer
service centre. Be sure to inform them of the detailed malfunctions and unit model.
Notes: Do not attempt to repair the unit yourself.
Always consult an authorised service provider.

____________________________________________________________________________________
17
ONE (1) YEAR LIMITED WARRANTY
SAVE THIS WARRANTY INFORMATION
EcoAir guarantees this product free from defects in materials and workmanship for
a period of one (1) year from the date of purchase, limited to parts only.
Faults arising from a faulty installation is specifically excluded.
This unit must be operated under conditions as recommended, at voltages
indicated on the unit. Any attempts made to service or modify the unit by
unqualified technician, will render this WARRANTY VOID. The actual product may
differ slightly from the illustration. This warranty is in addition to, and does not
affect, your statutory rights.
For after sales needs, please visit www.ecoair.org/service or email
[email protected] or contact [phone].
We recommend that you note the details of your purchase below and retain your original proof
of purchase receipt with this manual. Keep these documents safe in the event of a warranty
claim.
Date of purchase: _____________________________
Purchased from (Dealer Name): _____________________________
Retailer name: _____________________________
Model number: _____________________________
Serial number: _____________________________
Date of installation: _____________________________
Copyright Reserved