Midea CS494-U User manual

Read This Manual
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.
Before using your air conditioner, please read
this manual carefully and keep it for future reference.
INVERTER SPLIT TYPE
ROOM AIR CONDITIONER
-

1
CONTENTS
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.
CAUTION
SOCIABLE REMARK
Sociable remark.................................................................................................................................2
SAFETY PRECAUTIONS
Warning ............................................................................................................................................3
Caution .............................................................................................................................................4
OPERATIING INSTRUCTIONS
Parts names .....................................................................................................................................5
Special function.................................................................................................................................6
Operating temperature.......................................................................................................................7
Manual operation...............................................................................................................................7
Airflow direction control ....................................................................................................................8
How the air conditioner works ..........................................................................................................9
MAINTENANCE
Maintenance ....................................................................................................................................10
TROUBLESHOOTING TIPS
Troubleshooting tips .......................................................................................................................12
Normal function of the air conditioner ............................................................................................13

2
SOCIABLE REMARK
DISPOSAL: Do not dispose this product as unsorted municipal waste. Collection
of such waste separately for special treatment is necessary.
It is prohibited to dispose of this appliance in domestic household waste.
For disposal, there are several possibilities:
A) The municipality has established collection systems, where electronic waste can
be disposed of at least free of charge to the user.
B) When buying a new product, the retailer will take back the old product at least
free of charge.
C) The manufacture will take back the old appliance for disposal at least free of
charge to the user.
D) As old products contain valuable resources, they can be sold to scrap metal
dealers.
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.
When using this air conditioner in the European countries, the follow information
must be followed:

3
SAFETY PRECAUTIONS
3
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.
This symbol indicates the possibility of death or serious injury.
Meanings of symbols used in this manual are as shown below.
WARNING
Always do this.
Never do this.
CAUTION
This symbol indicates the possibility of injury or damage to property.
Connect with the power
properly.
Do not modify power cord
length or share the outlet
with other appliances
Always ensure effective
earthing.
Disconnect the power if
strange sounds, smell, or
smoke comes from it.
Ventilate room before operating air
conditioner if there is a gas leakage from
another appliance.
Otherwise, it may cause electric
shock or fire due to heat
generation.
excess
It may cause electric shock or
fire due to heat generation.
No earthing may cause electric
shock.
It may cause fire and electric
shock.
It may cause explosion, fire and, burns.
It may cause electric shock or fire
due to heat generation.
It may cause electric shock.
It may cause failure of machine
or electric shock.
It contains contaminants and
could make you sick.
It may cause fire and electric
shock.
It may cause electric shock or fire.
This could damage your health.
No installation may cause fire
and electric shock.
It may cause electric shock.
It may cause an explosion or fire.
It may cause failure and electric shock.
Do not operate or stop the
unit by switching on or off
the power.
Do not operate with wet
hands or in damp
environment.
Do not allow water to run
into electric parts.
Do not drink water drained
from air conditioner.
Do not use the power cord
close to heating appliances.
Do not damage or use an
unspecified power cord.
Do not direct airflow at
room occupants only.
Always install circuit
breaker and a dedicated
power circuit.
Do not open the unit
during operation.
Do not use the power cord near
flammable gas or combustibles, such
as gasoline, benzene, thinner, etc.
Do not disassemble or modify unit.
!
!
!
!
!
WARNING
Use the correctly rated
breaker or fuse.
There is risk of fire or electric
shock.
!

4
SAFETY PRECAUTIONS
CAUTION
When the air filter is to be
removed, do not touch the
metal parts of the unit.
It may cause an injury.
Do not clean unit when
power is on as it may cause
fire and electric shock, it may
cause an injury.
Operation with windows
opened may cause wetting
of indoor and soaking of
household furniture.
When the unit is to be
cleaned, switch off, and turn
off the circuit breaker.
Stop operation and close
the window in storm or
hurricane.
Use caution when unpacking
and installing. Sharp edges
could cause injury.
Do not clean the air
conditioner with water.
Water may enter the unit and
degrade the insulation. It may
cause an electric shock.
This could injure the pet or
plant.
Do not put a pet or house
plant where it will be
exposed to direct air flow.
Ventilate the room well
when used together
with a stove, etc.
An oxygen shortage
may occur.
Do not use this air cond-
itioner to preserve preci-
sion devices, food, pets,
plants, and art objects.
It may cause deterioration
of quality, etc.
It may cause failure of
product or fire.
Do not use for
special purposes.
Turn off the main power
switch when not sing
the unit for a long time.
u
If water enters the
unit, turn the unit off
and disconnect the
power , contact a
qualified service
technician.
!
!
!
!
!
!
!
It may cause failure of
appliance or accident.
Appearance may be
deteriorated due to change
of product color or
scratching of its surface.
Do not place obstacles
around air-inlets or inside
of air-outlet.
Do not use strong detergent
such as wax or thinner. Use
a soft cloth for cleaning.
If bracket is damaged, there
is concern of damage due to
falling of unit.
There is danger of fire or
electric shock.
Ensure that the installation bracket of
the outdoor appliance is not damaged
due to prolonged exposure.
Do not place heavy object on the
power cord and take care so that
the cord is not compressed.
Operation without filters
may cause failure.
Always insert the filters
securely. Clean filter
once every two weeks.
!
!
!

5
Parts names
Outdoor unit
OPERATING INSTRUCTIONS
Indoor unit
NOTE:
All the pictures in this manual
are for explanation purpose
only. Your air conditioner may
be slightly different.
The actual shape shall prevail.
1. Display window
2. Front panel
3. Panel frame
4. Chassis
5. Air filter
6. Panel brace
7. Manual control button
8. Power cord
9. Connecting pipe
10. Drain hose
11. Remote controller holder
12. Remote controller
13.
14.
15. Stop valve
Connecting cable
Connective pipe
Indoor unit
Outdoor unit
6
5
7
1234
8
10
9
12
Air outlet
Air inlet
Air inlet(rear)
Air inlet(side)
Air outlet
14
15
13
11
Display window
Signal receptor
DEFROST operation display
Displayed when the air conditioner
starts defrosting automatically or
when the warm air control feature is
activated in heating operation.
ADJUST
AUTO
COOL
DRY
HEAT
FAN
HIGH
MED
LOW
MODEFANSPEED
DIRECTION
/SWING
TIMERON
SLEEP
ON/OFF
TIMEROFF
SELF
CLEAN
RESETLOCK
SETTEMPERATURE(C)
FOLLOW
MELED
DISPLAY
CLEAN
AIR
TURBO
This display is separated into five
zones. The zones illuminate based
on the compressor current frequency.
For example, higher frequency
will illuminate more zones.
Operation Frequency display

Special feature
Airqualityisthekeytocomfort,thisair
conditioner is equipped with Ionizer or
Plasma Dust Collector(Depending on models).
Ionizer can generate abundant anions to fill
the room with refreshing and nature air. Your
whole family will enjoy a natural, pure and
healthy air everyday. The Plasma Dust Collector
can generate an ionization zone. The air is
converted to plasma as it passes the high
voltage ion generator. 95% of the dust, smoke,
and pollen particles are attracted to the
electrostatic filter.
CLEAN AIR function(optional) Function used after the Shut Down
of cooling operation to clean the
Evaporator and keep it as fresh for
the next operation.
This function is easy to be operated
as it is accessed through the
Remote Controller.
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 condi-
tioner under Cooling operation for
about half an hour.
Once the Self Clean function is
activated, all TIMER setting will be
cancelled.
During Self Clean operation, when
press the SELF CLEAN button on the
remote controller again will stop the
operation and turn off the unit.
Note:
SELF CLEAN function(optional)
Follow Me function
To activate the Follow Me feature, point the
remote control towards the unit and press the
Follow Me button. T
If the unit does not receive the
Follow Me signal during any 7 minute interval,
the unit will beep to indicate the Follow Me
mode has ended.
he 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.
The remote control serves as a remote
thermostat allowing for the precise
temperature control at its location.
OPERATING INSTRUCTIONS
6
CLEAN AIR display(optional)
Displayed when CLEAN AIR
feature is activated.
TIMER display
Displayed during Timer operation.
DIGITAL DISPLAY
.
Displays the current setting temperature
and malfunction code when the air
conditioner is in operation. When SELF
CLEAN feature is activated, it displays
,,
,,
Auto-Restart function
When the power is off and then on,
the unit automatically restores the
previous function setting.
AUTO operation display
Displayed during Auto operation.
When turns off the unit on COOL, DRY,
AUTO (Cool) mode, the air conditioner
will continue operating for 7 minutes
at soft fan speed. This will help to dry
up the water (sweating) inside the
evaporator, and prevent bacterial from
multiplying, supply clean and fresh air.
This function is a factory default setting.
If you want to cancel it, use the remote
controller to select the FAN mode,
press the ON/OFF button to turn on the
unit, press the ON/OFF button again
to turn off the unit after 5 seconds.
Under DRY & Antibacterial mode, do
not restart the air conditioner until the
unit is completely off.
Dry & Antibacterial Function(optional)

7
Manul operation can be used temporarily in case the remote controller is disable or maintenance
necessary.
OPERATING INSTRUCTIONS
Manual operation
Front panel
NOTE: This manual does not include Remote Controller Operations, see the
<<Remote Controller Instruction>> packed with the unit for details.
Manual control
button
Manual control
button
Side view
Operating temperature
Mode
Cooling operation
Heating operation
Drying operation
Temperature
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 these operating temperature.
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.
O
Room temperature
Outdoor temperature
>17 C
0C 50C
<30 C
-15 C 34 C 0C 50C
CAUTION:
~
~
~
( -15 C 50 C:For the models with
low temperature cooling system)
~
>10 C
For the convenience of operation, the
manual control button is designed on the
right side of the panel frame.
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.
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.
CAUTION:
1
2
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.

8
OPERATING INSTRUCTIONS
Airflow direction control
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.
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 OPERATION MANUAL
for details.
To set the vertical air flow(Up--Down) direction
O
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
operational 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.
To set the horizontal air flow direction (left - right)
The DIRECTION/SWING button will be disabled when the
air conditioner is not in operation(including when the TIMER
is set).
Do not operate the air conditioner for long periods the
air flow direction set downward in cooling or dry mode.
Otherwise, may occur on the surface of the
horizontal louver causing moisture to drop on to the floor or
on furnishings.
Do not move the horizontal louver manually. Always use the
DIRECTION/SWINGbutton. If you move this louver
manually, it may malfunction during operation. If the louver
malfunctions, stop the air conditioner once and restart it.
When the air conditioner is started immediately after it was
stopped, the horizontal louver might not move for
approximately 10 seconds.
Open angle of the horizontal louver 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 louver in closed position.
When the air conditioner is connected to power (initial
power), the horizontal louver may generate a sound for 10
seconds, this is a normal operation.
ON
with
condensation
CAUTION
!
Range
Range
Vertical
louver
,,
,,
Up-down air flow
Left-right air flow

9
OPERATING INSTRUCTIONS
AUTO operation
SLEEP operation
DRYING 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.
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 per hour for the first two hours, then
hold steady for the next 5 hours, after that the unit
will stop operation. The fan speed will be auto-
matically controlled. This feature can maintain the
most comfortable temperature and save more
energy for you.
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.
O
O
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, or performance may be reduced.
Use TIMER ON button on the remote controller 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.
1 hour
1 hour
Set
Temperature
Cooling
1
1
Heating
SLEEP operation
How the air conditioner works
Optimal operation
1
1
1 hour 1 hour
Set
Temperature
SLEEP operation
7 hours timer off
7 hours timer off