Panasonic CS-C281KR User manual

Room Air conditioner
Operating Instructions
Model CS–C281KR (Indoor)
CU–C281KR (Outdoor)
Before using your air-conditioner, please
read this operating instructions carefully
and keep it for future reference.

Contents
1
Safety Precautions.........................................2-4
– Installation precautions
– Operation precautions
Name of Each Part.........................................5-6
– Indoor unit
– Outdoor unit
– Accessories
– Remote control
Preparation Before Operation..........................7-8
– Before operating the unit
– How to insert batteries
– Operating the remote control
How to Operate...........................................9-10
Setting the Timer ......................................11-12
Convenient Operation................................13-14
– Sleep mode
– When remote control cannot be used
– OFF/ON remote control signal receiving
sound
Operation Hints.........................................15-16
Better Care and Maintenance.....................17-18
– Cleaning the air conditioner and air filters
– Replacement of air purifying filters
– When not using the air conditioner for a
long period
– Pre-season inspection
Troubleshooting ........................................19-20
– Normal operation
– Abnormal operation
– Call the dealer immediately
Before use
If necessary
How to use

Safety Precautions
2
Before operating, please read the following “Safety Precautions” carefully.
To prevent personal injury, injury to others and property damage, the following instructions must be followed.
Incorrect operation due to ignoring of instructions will cause harm or damage, the seriousness of which is
classified as follows:
The instructions to be followed are classified by the following symbols:
Warning:
Caution :
This sign warns of death or serious injury.
This sign warns of injury or damage to property only.
This symbol (with a white background) denotes an action that is PROHIB-
ITED.
These symbols (with a black background) denote an action that is COM-
PULSORY.
Installation precautions
Do not install, remove and reinstall the unit yourself.
Improper installation will cause leakage, electric shock or fire. Please consult an authorized dealer or
specialist for the installation work.
Warning
This room air conditioner must be earthed. Ensure that drainage piping is connected
properly.
Do not install the unit in a place where there
may be explosive gas leaks.
Caution
Improper grounding could cause
electric shock.
Gas leaks near the unit could cause
fires.
Otherwise, water will leak out.
Y
Y
Y
Y

3
Operation precautions
Insert the power plug proper-
ly.
Heat generated by a loose
power plug could cause electric
shock or fire.
Electrical outlet and power plug
shall be easilly accessible.
Do not operate or stop the
unit by inserting or pulling
out the power plug.
It could cause electric shock or
fire.
Do not damage or use an
unspecified power cord.
It will cause electrical shock or
fire.
Do not modify the length of
the power cord or use an
extension cord.
It could cause electric shock or
fire.
Do not modify the length of
the power cord or use an
extension cord.
It could cause electric shock or
fire.
Do not operate the unit with
wet hands.
It could cause an electric shock.
Do not insert finger, sticks or
other objects into the units.
It could lead to physical injury
and cause damage to the units.
Do not be directly exposed
to the cold airstream for too
long.
It could lead to health problems.
If there is a smell of burning,
stop the air conditioner and
disconnect the power supply.
The heat generated could
cause electric shock or fire.
Please consult an authorized
dealer or service centre.
Do not try to repair the unit
yourself.
It could lead to fire or cause an
electric shock. Please call an
authorized dealer or service
centre.
Switch off
the breaker. Disconnect the power
plug.
Warning
Y

4
Do not remove the power
plug by pulling the cord.
Hold the plug when disconnec-
ting the plug from the wall outlet.
Switch off the power supply if
the unit is not going to be
used for a long period of time.
If dust accumulates on the plug, it
will generate heat and this could
cause a fire.
When cleaning the unit, re-
move the plug.
This is to prevent injury due to
the rotating fan in the unit.
Do not use for other purposes.
Do not use for preservation pur-
poses. It will affect food quality,
animals or plants.
Do not place combustor in
the path of the airflow from
the unit.
Incomplete combustion could
cause toxic gas (CO) poisoning.
Ventilate the room regularly.
If not ventilated regularly, the
lack of oxygen could cause
headaches.
Do not wash the unit with
water.
It could cause an electric shock.
Inspect the unit for any dam-
age.
Ensure that the necessary
repairs are carried out.
Do not sit or place anything
on the outdoor unit.
You might fall off or the unit
might collapse.
Switch off
the breaker.
Disconnect
the power
plug.
Caution
Y

Name of Each Part
5
Indoor unit
Outdoor unit
Front Panel
Air Intake Vent
Panel Opener
Vertical Airflow
Direction Louver
Air Outlet Vent
Horizontal
Airflow Direction Louver
(Manually adjusted)
Signal Receptor
Operation Indication
Lamps (LED)
Air Intake Vents
Air Outlet Vents
(Side)
(Rear)
Ground
Terminal
(Inside Cover)
Piping
Drain Hose
Power Sleep Timer
Red Orange Orange

6
Remote control
Accessories
Remote Control Two R03 dry-cell
batteries or equivalent
Air Purifying Filters
Signal Transmitter
Operation Display
Sleep Mode
Operation Button OFF/ON Button
Airflow Volume
Selection Button
Airflow Direction Manual
Control Button
Room Temperature
Setting Button
Operation Mode
Selection Button
Airflow Direction Auto
Control Button
Separate displays and functions are available when the door is opened.
Door OFF-Timer Button Time
Button
ON-Timer Button
Door
Cancellation Button
Clock Button
Set Button
OFF-TIMER TIME ON-TIMER
SETCANCEL

Preparation Before Operation
7
Before operating the unit
Connect the power
supply cord to an
independent power
supply.
1
2
Open the front panel.
Hold the panel openers at both
sides and pull up the front panel.
3
Remove air filter.
Insert air purifying filter.
Insert the air filters.
Hold the tab to raise up slightly
and then pull down.
Air
filter
Be careful not to
hurt your hands by
metal parts. Air purifying
filter
<Note>
Use under the following conditions: (Unit in ˚C)
DBT: Dry Bulb Temperature Cooling
WBT: Wet Bulb Temperature In door Out door
DBT WBT DBT WBT
Maximum Temperature 32 23 43 26
Minimum Temperature 16 11 16 11

8
How to insert batteries
Operating the remote control
Gently press the
place marked
[OPEN] and
slide the cover
toward you.
(Two R03 dry-cell
batteries or equivalent)
Fix the cover to the back of the remote control
(“PM 12:00” will flash in the operation dis-
play.)
If the display does not appear when the batter-
ies are inserted, remove the batteries and insert
them once more.
Be sure
that the (+) and
(–) directions
are correct.
Make sure that the
signal path is not
obstructed.
The maximum dis-
tance at which sig-
nals can be received
is about 10 m.
Aim at the signal receptor on the room air condi-
tioner when operating.
Do not drop or throw the remote control.
Do not place the remote control in a location that
is exposed to direct sunlight or next to a heating
unit or other heat source.
Signal received sound:
One short beep or one long beep.
Pull out the power plug or turn off the power
breaker when:
The air conditioner is not going to be used for
an extended period of time.
If the power supply cord connect, approximately
3.25 watts of electric power are used even if the
main unit is turned off by remote control.
There is a danger of lightning.
The air conditioner is provided with a built-in pro-
tective device, but the control equipment may be
adversely affected depending on the extent of
lightning activity.
Regarding the batteries.
The batteries can be used for approximately one
year.
Do not use rechargeable (Ni-Cd) batteries,
because such batteries differ from standard dry-
cell batteries in shape, dimensions and perfor-
mance.
Be sure to replace the batteries with two new bat-
teries of the same type.
Remove the batteries if the air conditioner is not
going to be used for an extended period of time.

How to Operate
9
If there is a power failure, operation will be
automatically restarted after 3 minutes when
the power is resumed with previous operation
mode and airflow direction.
(when the operation is not stopped by remote
control.)
If you do not intend to continue the operation
when the power is resumed, pull out the power
plug at main unit or power supply.
When you insert the power plug the operation
will be automatically restarted with previous
operation mode and airflow direction.
Note: 1. If you do not require Auto Restart con-
trol, please consult your dealer.
2. Auto Restart Control is not available
when Timer or Sleep Mode is set.
Auto Restart Control.
For Cooling : 26 –28
For Soft Dry : 1 –2lower than
room temperature.
Recommended temperature for health
and comfort.
<Operation Details>
AUTO-Automatic Operation.
Once the Automatic Operation is selected, the in-
door temperature sensor operates automatically
to select the desired operation mode with Cooling
or Soft Dry.
DRY-Soft Dry Operation.
Soft Dry is a very gentle Cooling Operation
consisting primarily of dehumidifying. It does not
lower the room temperature very much.
Cooling Operation
until room tem-
perature reaches the
setting temperature Super Low air-
flow amount
When room temperature reaches the setting tempera-
ture, operation will switch to Soft Dry.
Setting
Temperature
Operation will be switch-
ed on and off for up to
10 min on and 6 min off
during Soft Dry
Temperature
23˚C
COOLING
SOFT DRY
Temp. set at
25˚C
Temp. set at
22˚C