Room Air Conditioner

Operating Instructions
Indoor Model Outdoor Model

CS-A182KR CS-A242KR

CU-A182KR CU-A242KR
Before using your air-conditioner, please read this operating instructions carefully and keep it for future reference.

ENGLISH. P. 1 P. 22

F563264

Contents

q Safety Precautions.. Installation precautions Operation precautions Name of Each Part.. Indoor unit Outdoor unit Accessories Remote control Preparation Before Operation. Before operating the unit How to insert batteries Operating the remote control How to Operate... Setting the Timer.. Convenient Operation.. Sleep mode When remote control cannot be used OFF/ON remote control signal receiving sound Operation Hints.. Better Care and Maintenance.. Cleaning the air conditioner and air filters Cleaning of front panel Replacement of air purifying filters When not using the air conditioner for a long period Pre-season inspection Troubleshooting.. Normal operation Abnormal operation Call the dealer immediately

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Safety Precautions
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. s Incorrect operation due to ignoring of instructions will cause harm or damage, the seriousness of which is classified as follows :

ENGLISH

Warning : Caution :
This sign warns of death or serious injury.
This sign warns of injury or damage to property only.
The instructions to be followed are classified by the following symbols : This symbol (with a white background) denotes an action that is PROHIBITED.
These symbols (with a black background) denote an action that is COMPULSORY.

Installation precautions

Do not install, remove and reinstall the unit yourself. Improper installation will cause leakage, electric shock or fire. Please engage an authorized dealer or specialist for the installation work.

! Warning

! Caution
s This room air conditioner must be earthed. Improper grounding could cause electric shock. s Ensure that drainage piping is connected properly. Otherwise, water will leak out. s Do not install the unit in a place where there may be explosive gas leaks. Gas leaks near the unit could cause fires.

Operation precautions

!Warning
s Insert the properly. power plug
Heat generated by a loose power plug could cause electric shock or fire. Electrical outlet and power plug shall be easily accessible.
s Do not operate or stop the unit by inserting or pulling out the power plug.
It could cause electric shock or fire.
s Do not damage or use an unspecified power cord.
It will cause electrical shock or fire.
s Do not modify the length of the power cord or use an extension cord.
s Do not operate the unit with wet hands.
It could cause an electric shock.
s Do not insert finger, sticks or other objects into the units.
It could lead to physical injury and cause damage to the units.
s Do not be directly exposed to the cold airstream for too long.
It could lead to health problems.
s 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.
s 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 Disconnect the breaker. the power plug.
s Do not remove the power plug by pulling the cord.
Hold the plug when disconnecting the plug from the wall outlet.
s 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.

Switch off the breaker.

s When cleaning the unit, remove the plug.
This is to prevent injury due to the rotating fan in the unit.
Disconnect the power plug.
s Do not use for other purposes.
Do not use for preservation purposes. It will affect food quality, animals or plants.
s Do not place combustor in the path of the airflow from the unit.
Incomplete combustion could cause toxic gas (CO) poisoning.
s Ventilate the room regularly.
Since windows are kept closed, it does good to open them periodically to ventilate the room.
s Do not wash the unit with water.
s Inspect the unit for any damage.
Ensure that the necessary repairs are carried out.
s Do not sit or place anything on the outdoor unit.
You might fall off or the unit might collapse.

Name of Each Part

Indoor unit
Panel Opener Front Panel Air Intake Vent Test Run Button Auto Operation Button
Air Outlet Vent Vertical Airflow Direction Louver Signal Receptor
Power Supply Cord Power Switch Operation Indication Lamps (LED)
POWER : Red SLEEP : Orange TIMER : Orange
Horizontal Airflow Direction Louver (Manually adjusted)

Outdoor unit

Air Intake Vents

(Rear)

(Side)
Air Outlet Vents Ground Terminal (Inside Cover)

Piping Drain Hose

Accessories Remote control

Remote Control

Two R03 (AAA) dry-cell batteries or equivalent

ON -TIM ER

OF F-TI MER

SL EE P

SPE ED TEM MA NU P. AL

OF F/O N

Air Purifying Filters (Catechin Air Purifying Filters and Deodorizing Filters)
Signal Transmitter Operation Display
Sleep Mode Operation Button

ON -TI ME R

OFF/ON Button Airflow Volume Selection Button

OF F-T IM ER

AIR SW IN
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 ON-Timer Button OFF-Timer Button Time Button
OFF-TIMER CANCEL q TIME ON-TIMER SET
Cancellation Button Set Button Clock Button
Preparation Before Operation Airflow Direction Adjustment
Before operating the unit
s Connect the power supply cord to an independent power supply.

s Open the front panel.

Hold the panel openers at both sides and pull up the front panel.

s Remove air filter.

Air filter Hold the tab to raise up slightly and then pull down.
s Switch on the power switch and close the front panel.
s Insert air purifying filter. Insert the air filters.
Be careful not to hurt your hands by metal parts.

Air purifying filter

Use the air conditioner under the following conditions.
(Unit in C) DBT: Dry Bulb Temp Indoor WBT:Wet Bulb Temp Maximum Temperature Minimum Temperature DBT WBT Cooling Outdoor DBT WBT Indoor DBT WBT Heating Outdoor DBT 24 -5 WBT 18 -6

How to insert batteries

Gently press the place marked [OPEN] and slide the cover toward you.
Fix the cover to the back of the remote control (PM 12:00 will flash in the operation display.)
e r Be sure that the (+) and () directions are correct.

12 : 00

Make sure that the signal path is not obstructed.
The maximum distance at which signals can be received is about 10 m.
Set the power switch to t (OFF) when:
s The air conditioner is not going to be used for an extended period of time.
If the power switch is left at I (ON), approximately 3.25 watts of electric power are used even if the main unit is turned off by remote control.

O PE N

(Two R03 (AAA) dry-cell batteries or equivalent)
If the display does not appear when the batteries are inserted, remove the batteries and insert them once more.
Operating the remote control
s Aim at the signal receptor on the room air conditioner 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.

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 performance. Be sure to replace the batteries with two new batteries of the same type. Remove the batteries if the air conditioner is not going to be used for an extended period of time.
There is a danger of lightning.
The air conditioner is provided with a built-in protective device, but the control equipment may be adversely affected depending on the extent of lightning activity.

How to Operate

Auto Restart Control.
s 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, switch off the power switch at main unit or power supply. When you switch on the power switch, the operation will be automatically restarted with previous operation mode and airflow direction. Note: 1. If you do not require Auto Restart Control, please consult your dealer. 2. Auto Restart Control is not available when Timer or Sleep Mode is set.

OFF SLE EP

/ON FAN SPE ED MAN SWI NG UAL

TEM MOD E SWI NG

Recommended temperature for health and comfort.
For Heating For Cooling For Soft Dry : : : 20C 26C 24C 28C
1C 02C lower than room temperature.
<Operation Details>
AUTO Automatic Operation.
s Once the Automatic Operation is selected, the indoor temperature sensor operates automatically to select the desired operation mode with Cooling, Soft Dry or Heating. The Operation mode changes every hour, when necessary. Temperature is not displayed on remote control during Auto mode operation.

DRY Soft Dry Operation.

s 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 temperature reaches the setting temperature

Super Low airflow amount

Setting Temperature
When room temperature reaches the setting temperature, operation will switch to Soft Dry.
Press to select operation mode.
s The display changes in the order

OFF/ON I

each time the button is pressed.
Press to start the operation.
s Operation indication lamp (RED) will light up. s Press once more, to stop the operation.

FAN SPEED

Press to select airflow volume.
s The display changes in the order.

Automatic

Medium
Press to select room temperature.

MANUAL

continuously.

s The vertical airflow direction louver will move up and down. Release the button when the louver is at the desired position.
s Cooling & Soft Dry The vertical airflow direction louver will swing up and down
automatically. Heating When the discharge air temperature is low such as at the start of heating operation, the air blows at horizontal level. As the temperature rises, the hot air blows in a downwards direction. MANUAL To stop the automatic airflow direction operation, press button.

HEAT Heating Operation

s Defrosting Operation Depend on the outdoor temperature, the operation occasionally stops to melt the frost on the outdoor unit. s Heat is obtained from outdoor air to warm up the room. When the outdoor ambient air temperature falls, the heating capacity of the unit might be reduced.

Automatic Airflow Volume

s The speed of the indoor fan is adjusted automatically according to the operation. The indoor fan stops occasionally during cooling operation.
Range of louver adjustment
Heating (Airflow Direction Manual)
Heating (Airflow Direction Auto)
Cooling/Soft Dry (Airflow Direction Manual and Auto)
s Heating, Cooling, Soft Dry Select temperature as desired. (16C ~ 30C) s Automatic. (See <Operation Details>)

2C lower than standard

standard

2C higher than standard

Setting the Timer

P SLEE

/ON MER SET

IME OFF-T

If there is a power failure.
To reset the Timer. (Example) If the OFF Timer has been set.

OFF-TIMER SET

Even if there is a power failure, the setting time is still stored in the memory because the remote control is a battery operated type.

<Note>

Regarding remote control.

[RESET] points [B

If the current time is not set correctly, correct Timer setting will not be possible. When the Timer is set, the current time display will vanish. [RESET] points will clear the memory once they are shorted. [B A] switch is used when two air conditioners units have been installed in one room. Please consult your dealer.

A] switch

To set the current time.

Set hours and minutes

. to advance the time. to reverse the time

To set the Timer.

s OFF Timer

OFF-TIMER

. to increase 10 minutes each step. to decrease 10 minutes each step.
The OFF-TIMER will blink.

The Timer indication lamp at main unit will light up. LED colour: Orange.

s ON Timer

0N-TIMER

The ON-TIMER will blink.

To cancel the Timer.

CANCEL

q The Timer indication lamp at main unit will go off. q To cancel the ON Timer, follow the same procedure.
To change the Timer setting time.
s (Example) To change the ON Timer setting time.
Change hours and minutes setting
s The ON Timer and OFF Timer can only be set once during a day. The operation will start before the actual setting time with ON Timer setting. Cooling and Soft Dry : 15 minutes before Heating and Automatic : 30 minutes before This is to allow time to attain your desired set temperature. s s Setting the OFF Timer. This is useful for saving electricity costs incurred by forgetting to turn off the air conditioner. Setting the ON Timer. If the air conditioner is set before you go out, the room temperature will be close to your desired temperature when you return.

Convenient Operation

Sleep Mode
This is to gain a comfortable room temperature while sleeping.

To set Sleep Mode.

s Press
(The sleep indication lamp on the main unit will light up.)

To cancel Sleep Mode.

OF F /ON FAN TEM MO DE SW ING AIR S P. S D PEE MA NUA L

Press once more

(The sleep indication lamp on the main unit will switch off.)

Sleep Mode Operation.

s When the room temperature reaches the setting temperature or after 1 hour of operation, sleep shift operation starts and the airflow volume will automatically change to low. Sleep Mode Operation time is 8 hours. When using together with the Timer, the Timer has priority.

<Information>

s Cooling or Soft Dry Operation for Sleep Mode movement will start to avoid overcooling.
Approx. 0.5C increase SETTING TEMPERATURE TEMP. SETTING TEMPERATURE Approx. 0.5C increase Approx. 8 hours after sleep shift operation starts, stops automatically

s Heating Operation for Sleep Mode movement will start to avoid overheating.
TEMP. Sleep shift operation starts Approx. 8 hours after sleep shift operation starts, stops automatically

Approx. 2C decrease

1 hour

Approx. 3C decrease

hour Sleep shift operation starts
TIME Sleep Operation button is pressed
Sleep Operation button is pressed
When the remote control cannot be used

Test Run Button.

(Use when installing and moving)

Auto Operation Button.

s When the remote control cannot be used, press Auto Operation Button to run Automatic Operation. (Airflow direction setting will be automatic.)

To set Auto Operation.

s Confirm the power switch is at I (ON). s Press Auto Operation Button. (The operation indication lamp will blink for 20 seconds, and then light up) q If the button is pressed once more, the air conditioner will stop. (The operation indication lamp will switch off.)

POWER ON OFF

AUTO OFF/ON
OFF/ON remote control signal receiving sound
s The Remote Control Signal receiving sound can be omitted as desired. s To switch OFF the signal receiving sound, press Auto Operation Button for 10 seconds or more. At the same time, Automatic Operation starts. (To switch ON, press Auto Operation Button once more for 10 seconds or more.)

Operation Hints

Adjust room temperature properly. Set the temperature 1C higher (Cooling Operation) or 2C lower (Heating Operation) than actually desired. Approximately 10% of electricity costs can be saved. Clean the air filter regularly. Blockage in the air filter reduces the airflow and lowers the cooling or heating. Clean at least once every 2 weeks. Otherwise, about 6% of electricity cost will be wasted.
Prevent wastage with the Timer. Use Timer when sleeping or going out to save electricity cost.

2C lower

1C higher Do not block the air outlet vents at outdoor unit. Otherwise, it will lower the cooling or heating performance.
Make sure that the doors and windows are shut. Otherwise, cooling and heating performance will be reduced and electricity cost is wasted.
Keep blinds or curtains closed. Do not let sunshine enter the room directly. About 5% of electricity cost can be saved.
Proper airflow direction adjustment. Set the airflow direction louvers horizontal for Cooling Operation and downwards for Heating Operation. Operation result will be better.

Use insulating material for better performance. Use insulating material during construction or renovations. It will save electricity cost.

Cooling

Better Care and Maintenance
Regular care and maintenance will extend the life of the air conditioner and prevent wastage of electricity. Before performing any maintenance procedure, be sure to switch off the main power supply.

Caution

Do not use water or volatile liquids. s Do not make air conditioner wet, as there is the danger that it could cause electric shocks. Be sure not to apply water when cleaning or at any other time. s Using water above 40C could cause deformation and/or discolouration. s Volatile liquids such as thinner or benzene may damage the air conditioner.
Cleaning the air conditioner and air filters
Once every 2 weeks is recommended.
s Clean the air conditioner.
Wipe gently with a soft, dry cloth.

Clean the air filters.

s To remove the dust adhering to the filters, either use a vacuum cleaner, or wash them in water and dry in the shade. Re-insert the filters correctly at the left and right, with the side marked [FRONT] facing forward. Purchase replacement filters from your air conditioner dealer if the air filters become damage. Air Filter No. CWD00231 (right) CWD00232 (left)
Cleaning of front panel (Must be removed before washing)
To clean the front panel, gently wash with sponge. Wipe dry or dry in shade. IMPORTANT: It may lead to shaft damage if the front panel is removed or fixed without releasing the shaft. Be careful not to drop the front panel. s

To remove front panel.

1. Raise the front panel. 2. Release either one of the fulcrum from the ditch.
Left side Fulcrum Press to the right Ditch Right side Fulcrum Press to the left Ditch
3. Release the shaft from the fixing hole.
4. Repeat step 2 to release the other fulcrum.
5. Remove the front panel.
( Illustration is shown ) as above

Press Fixing Hole

To fix the front panel, reverse the above procedure accordingly.
Replacement of air purifying filters
Recommended about once every 3 months.

Remove the air filters.

Remove the air purifying filters.
! Caution Be careful not to hurt your hands on metal parts.
Remove the filters from the filter frame.

Filters

Air filter
If air purifying filters turn the same colour as the sample colour attached to the indoor unit within a three month period, replace the filters. Re-insert the filters correctly at the left and right with the side marked [FRONT] facing forward. Dusty filters cannot be re-used, even if they are cleaned and washed. Purchase replacement filters from your air conditioner dealer. Part number for air purifying filters: CZ-SFD50N Note: Catechin is natural brown element. The filter is coated with catechin in order to prevent the growth of bacteria and viruses.

Sample colour

When not using the air conditioner for a long period
Operate the air conditioner for 2 to 3 hours.
s Type of operation: Cooling. s Temperature setting: 30C
For air conditioners with a power plug, stop operation by remote control and pull out the power plug.
Note: If the unit is not off by remote control, the unit will operate when you plug in (because of Auto-restart Control is provided).
Remove the batteries from the remote control.
In order to dry out the internal mechanisms
Pre-season inspection (The earlier the better)
s Is the discharge air cold (warm)?
Operation is normal if, 15 minutes after the start of operation, the temperature difference between the air intake and outlet vents is 8C or above for cooling and 14C or above for heating.
s Are the air outlet vents and air intake vents obstructed?
s Is the drain hose cracked or crushed?
the remote control batteries in good condition?
If they are, cooling or heating performance will drop and cause problems.
If it is, leaks will result.
If display is faint or no display is visible, the batteries should be replaced.
Is cool (warm) air coming out?

Troubleshooting

Normal operation

Q Is it okay?

Sight Air conditioner has been restarted, but does not operate for 3 minutes.

A This is the answer.

This is to protect the air conditioner. Wait until the air conditioner begins operating.
During Soft Dry Mode Operation, the air conditioner stops.
Soft Dry Mode Operation is a very gentle cooling operation consisting primarily of dehumidifying. The air conditioner may stop for approximately 6 minutes in order to prevent overcooling. If the room temperature rises again, the operation will recommence. If the airflow begins before its temperature become warm, it will cause an undesired cooling effect. In order to prevent this, the airflow will not begin until it is sufficiently warm. (The operation lamp will blink until the airflow begins.)
Airflow does not begin immediately during Heating Operation.
The room has a peculiar odour.
This may be a damp smell exuded by the walls, carpet, furniture or clothing in the room.
A sound like water flowing can be heard. A noise that sounds like the compressed air releasing into atmosphere
This is the sound of refrigerant flowing inside the air conditioner unit. This is the sound of reversing the freon flow inside the unit at the starting and finishing the defrosting during Heating operation.
It seems that fog is coming out from the air conditioner.
Condensation occurs when the airflow from the air conditioner cools the room air.

z z Stop for 12 minutes.

Blinks
Operation stops for about 12 minutes during heating. (The operation lamp blinks.)

This is to melt the frost which has accumulated on the outdoor unit (Defrosting Operation). This will take no longer than about 12 minutes, so wait for operation. (Frost accumulates on the outdoor unit when the outdoor temperature is low and the humidity is high.) Water comes out from the outdoor unit.
During Automatic Airflow Volume setting, indoor fan stops occasionally.
This is to remove the smell exuded by the surroundings.

Abnormal operation

s Has the circuit breaker been tripped? s Has the power plug been removed from the wall outlet? s Is the power switch at t (OFF)? s Is the Timer being used correctly? s Has the REMOTE CONTROLLER B A switch been set to B?
The air conditioner does not operate.
The air conditioner does not cool effectively.
s Has the temperature been set incorrectly? s Are the filters dirty? s Are the intake or outlet vents of the outdoor unit obstructed? s Are all windows and doors closed?
Air conditioner operation noise too loud.
s Is the installation work slanted? s Is the front grille closed properly?
Call the dealer immediately
If the following conditions occur, immediately turn the power switch to t (OFF) and unplug.
s Abnormal noise is heard during operation.
s Switches or buttons do not operate properly.
s Water or foreign material gets into the remote control by mistake.
s The circuit breaker switches off frequently.
s Water leaks from the indoor unit.
s Power supply cord and plug become unusually warm.

Warning

1) If the supply cord is damaged or need to be replaced, it must be replaced by the manufacturer or its service agent or a similarly qualified person in order to avoid a hazard. 2) Remove power plug or disconnect from the mains before servicing this appliance. 3) Do not repair by yourself. In case of malfunction of this appliance, do not repair by yourself. Contact to the sales dealer or service dealer for a repair. 4) The appliance is not intended for use by young children or infirm persons without supervision. 5) Young children should be supervised to ensure that they do not play with the appliance. 6) Turn off the power (Isolation from main power supply). Pull off the power plug from the receptacle, or switch off the breaker, or switch off the power disconnecting mean to isolate the equipment from the main power supply in case of an emergency.

DISCONNECT THE MAINS PLUG FROM THE SUPPLY SOCKET WHEN NOT IN USE, WHERE SUPPLY CONNECTION IS VIA MAINS PLUG.

IMPORTANT

1. WHEN THE POWER CORD IS CONNECTED TO THE MAINS THROUGH A MULTI POLAR SWITCH THERE MUST BE A MULTI POLAR SWITCH (DISCONNECTING MEANS) WITH A MINIMUM 3 mm CONTACT GAP IN THE FIXED INSTALLATION CIRCUIT. 2. WHEN THE POWER PLUG IS CONNECTED TO THE RECEPTACLE Replacement or installation of power plugs shall be performed only by authorised/qualified personnels. The wires in this main lead are coloured in accordance with the following code : Green-and-yellow : Earth Blue : Neutral Brown : Live If the colours of the wires in the main lead of this appliance do not correspond with the coloured markings indentifying the terminals in your plug, proceed as follows : The green-and-yellow wire must be connected to the terminal in the plug which is marked with letter E or by the earth symbol ! or coloured green or green-and-yellow. The blue wire must be connected to the terminal which is marked with the letter N or coloured black. The brown wire must be connected to the terminal which is marked with the letter L or coloured red.
Please remember to record the following :

q q q q

Model Number Serial Number Dealer's Name Date Purchased
Matsushita Electric Industrial Co., Ltd.
F563264 Osaka 542-8588, Japan.
Printed in Malaysia P0103-0