Panasonic CW-LC181AG Series User manual

Operating Instructions
Air Conditioner
Operating Instructions
Air Conditioner
Thank you for purchasing Panasonic Air Conditioner.
Installation instructions attached.
Before operating the unit, read these operating
instructions thoroughly and keep them for future
reference.
English
Model No.
Window Unit
CW-LC181AG series
CW-LC181AM series
CW-LC181AR series
CW-XC181AG series
CW-XC181AM series
CW-XC181AR series

Safety Precautions....................................................................1
Parts Identification.....................................................................2
FEATURES
Display Panel.............................................................................3
Remote Control .........................................................................3
Operational Instructions..........................................................4-5
Preparation Before Operation....................................................6
Air-conditioner Installation.....................................................7-10
Air-conditioner Operation.....................................................11-12
Energy Saving Hints................................................................13
Care and Maintenance.............................................................14
Troubleshooting.....................................................................15
CONTENTS

-: 1 :-
SAFETY PRECAUTIONS
Please observe these following safety precautions when using your air conditioner.
Failure or negligence in observing these safety precautions could cause fire,
electrical shock or personal injury.
This sign warns of risk of death or serious injury.
This sign warns of risk of injury or damage to property.
INSTALLATION PRECAUTIONS
Do not install, remove and reinstall the unit yourself.
Improper installation may cause leakage, electric shock or fire.
Please engage an authorized dealer or specialist for the installation work.
Do not add or replace refrigerant other than the specified type.
It may cause product damage, burst and injury. If the supply cord is
damage, it must be replaced by the manufacturer, its service agent or
similarly qualified persons in order to avoid any hazard.
The room air conditioner must be earthed.
Improper grounding could cause electric shock.
Do not install the unit in place where there are explosive gas leaks.
Gas leaks near unit could cause fire.
Ensure that the drain pipe is connected properly.
Otherwise, water will leak out.
OPERATION PRECAUTIONS
This sign warns of risk of death or serious injury.
Do not modify the length of the power cord or use an extension cord.
Do not touch or operate with wet hands.
Do not modify or damage the cord.
Do not turn on the unit by inserting the power plug. Do not switch off the unit by pulling out the
power plug.
Avoid an extended period of direct airflow.
Do not insert your fingers or other objects into the unit, rotating parts may cause injury .
Do not try to repair unit yourself.
Plug in properly before operating and use a specified power cord.
If abnormal conditions (burnt smell, etc) occur switch off and remove the power plug.
Confirm from authorized dealer or specialist on usage of specified refrigerant type. Using of
refrigerant other than the specified may cause product damage, burst and injury etc.
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
supervision 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 sign warns of risk of injury or damage to property.
Do not use the unit for other purposes than its intended use.
Do not remove the power plug by pulling the cord.
Do not block the air intake and outlet vanes.
Do not splash or direct water at the unit.
Do not expose the unit to direct sunlight during operation.
Do not operate the unit without the air filter installed or when the front intake grille has been
removed .
Do not place any object on the unit.
Do not operate any combustion equipment near the unit's airflow area.
Do not sit or step on the unit, you may fall down accidentally.
Do not touch the sharp aluminium fin, sharp parts may cause injury.
Switch off the breaker and unplug the unit from the socket if the unit will not be operated for a long
period.
Pay attention to any damage on the unit caused by extensive usage.
Ventilate the room occasionally where the unit is installed.
Unplug the power cord when cleaning the unit.
CAUTION
WARNING
CAUTION
WARNING
WARNING
CAUTION

-: 2 :-
1. Power supply cord conductors are distinguished according to color.
2. For your safety and protection, this unit is earthed through the power supply cord.
Please contact the manufacturer or its service dealer or a similarly qualified person if you
want to replace it.
3. This unit is earthed through the power cord.
The wall outlet should be provided with reliable earth wire.
4. The unit should be provided with an individual circuit and the circuit breaker/fuse rating
should be the same as that of the power supply cord and wall outlet.
1. Front Grille
2. PM 2.5 Filter
3. Air Filter
4. Remote Control
5. Cabinet
6. Air Inlet Grille (Outdoor Side)
7. Air Outlet Grille
8. Electronic Control Keypad
9. Power Supply Cord
10. Vertical Vane
PARTS IDENTIFICATION
2
10
4
9
8
1
35
7
6

DISPLAY PANEL
REMOTE CONTROL
-: 3 :-
Note :
1. The operating range for the remote handset is 7 meters.
2. The unit will beep once it receives signal from the remote control.
3 User has to refer the photo and feature of same remote, shown above,
which they receive with AC.
FEATURES
Maximum distance 7meters
Fan Speed
Air Swing
Timer On
Fan Speed Button
Temperature Buttons
Air Swing Button
Set Button
Cancel Button
Cool
Dry
Fan
Power On/Off Button
Mode Selection Button
Sleep Selection Button
Timer Selection Button
Powerful Selection Button
Timer Off

-: 4 :-
OPERATIONAL INSTRUCTIONS
INTRODUCTION
GENERAL FEATURES
DISPLAY
The Seven Segment shows:
Set Temperature (ST) in Cool Mode and Dry Mode.
'Fn' in Fan Mode.
'E1' when Room Sensor Short or Open.
'E2' when Coil Sensor Short or Open.
“SL” for Sleep in Cool Mode only for 5 second in every one minute if Sleep is active.
‘CL’ visible only when operated from Display Panel button.
‘dr’ visible only when operated from Display Panel button.
‘Po’ visible only when operated from Display Panel button.
Various modes of operation of the unit are as follows:
Cool
Dry
Fan
Cool :
In this mode of operation, compressor will be switched on after a delay of three minute depending on the
differential of Room Temp & Set Temperature.
Cool LED blinks during the ON delay time of the compressor.
Preset temperature and fan speed can be changed by the user.
Fan Speed can be selected (Fan auto, High, Medium or Low).
Compressor will work as per the following conditions:
Compressor will cut off,
If Room temperature = Preset temperature - 1ºC or Below
Compressor will cut in,
If Room temperature = Preset temperature + 1° C or Above
NOTE: Compressor should take 3 min times delay if it required as per the timing protection and 3mins required
for thermostatic cutoff from Comp Switch On (minimum Run Time).
Dry :
Initial startup
Fan motor run at only low speed and cannot be changed. The comp On/Off duration is controlled by difference
between room temp and set temp. as follows:
Room Temp = Set Temp + 2ºC or above Comp On for 15 min Off for 5min
Room Temp = Set Temp + 1ºC Comp On for 10 min Off for 10min
Room Temp = Set Temp Comp On for 10 min Off for 10min
Room Temp = Set Temp-1ºC Comp On for 10 min Off for 10min
Room Temp = Set Temp -2ºC or Below Comp On for 5 min Off for 15min
DUAL DIGIT 7 SEGMENT DISPLAY
MODES OF OPERATIONS

-: 5 :-
OPERATIONAL INSTRUCTIONS
FEATURES :
a) Fan Speed Low.
b) Swing ON/OFF
c) Temp can be set from 16 º C to 30 º C.
FAN :
In this mode, Compressor will be switched off.
High, Medium or Low Fan speed can be selected with the transmitter or Fan key.
AUTO FAN SPEED (in Cool Mode) :
While increasing room temp:
Low fan change to medium when room temp> set temp. + 2˚C.
Medium fan change to high when room temp.> set temp+ 4˚C.
While decreasing room temp:
High fan change to medium when room temp< set +2˚C
Medium fan change to low when room temp< set temp.
KEYS ON THE RECEIVER UNIT :
There are Nine ( 9 nos.) keys on the Receiver Unit. A beep sound is heard when any key is pressed.
Power : Switch the system on or off.
UP : To Increases the set temp.
Down : To Decreases the set temp.
Mode : Changes the mode to Cool, Dry, Fan, Corresponding LED glows to indicate the selected mode.
Swing : This is a toggle key to switch On/Off the Swing Motor.
Fan : This key changes the Fan speed to High, Medium or Low.
Powerful Mode : By pressing this key, Compressor will turn ON instantly by-passing delay time
(if room temp>Preset temp). Fan will run at high speed. Powerful Mode can be turn off by changing
Mode.
Timer : Used to set timer ON when unit is OFF and vice versa.
Sleep : Sleep function can be selected in cool mode only. Total 3 degree preset temperature will increment in 6
hour (1 degree in 2 hours.)
NON VOLATILE MEMORY :
Controller starts with a default memory if the non volatile memory fails.
a. Mode : Cool
b. Timer : Off
c. Set Temp : 25ºC
d. Fan Speed : High
e. Swing Motor : ON
ROOM SENSOR FAILURE :
When the room sensor is short or open, Display shows “E1” & compressor gets on for 20 minutes & off for 07
minutes & repeats this cycle irrespective of the set temperature.
COIL SENSOR FAILURE :
When the coil sensor is short or open, Display shows “E2” & compressor gets on for 20 minutes & off for 07 minutes
& repeats this cycle irrespective of the set temperature.
EVAPORATOR UNIT FROST PREVENTION (COOL MODE / DRY MODE)
When ECT * Reached 2 deg. C or below for 1 min
Compressor cut off immediately and Fan runs with low Speed.
When ECT Reached on 12 deg. C or above.
Compressor will turn on according to Room Temperature (With 3 minutes delay)
(ECT: Evaporator Coil Temperature.)
NOTE : “ST” stands for Set Temperature.
Display PCB : VL-DISP-01
Relay PCB : VL-POWER 11
Fan
Speed
Set Temp
Control
Timer Sleep Swing Comp. Display
Cool Yes Yes Yes Yes Yes Yes CL, ST, SL, Po
Dry No Yes Yes NA Yes Yes dr , S T
Fan Yes No Yes NA Yes No Fn
OFF No No Yes NA No No OFF/Timer
value

-: 6 :-
PREPARATION BEFORE OPERATION
WARNING
Ensure that the power plug
is securely inserted.
A loose plug may cause fire
or an electric shock.
NOTES :
If the unit is not going to be used for an
extended period of time, remove the power
plug. Otherwise, approximately 2.5W of
electricity will be used even if the unit has
been turned off using the remove control.
HOW TO INSERT BATTERIES
1 2 3
Open the cover. Insert the two batteries. Close the cover.
CAUTION
Do not use rechargeable (Ni-Cd) batteries because such batteries differ
from the standard dry cell batteries in shape, dimension and performance.
If operation is stopped, and to be restarted
immediately, the unit will resume operation
only after 3 minutes.
ABOUT THE BATTERIES
The batteries can be used for approximately one year.
Be sure to replace the batteries with two new identical batteries.
Remove the batteries if the air conditioner will not be used for an extended
period of time
OPERATION CONDITIONS
Use the air conditioner under the
following conditions :
Operating temperature range.
O
(unit in C)
Max. Temperature
Min. Temperature
Outdoor sideIndoor side
D.B.T
46
16
D.B.T
35
16
W.B.T
27
11
W.B.T
24
11
NOTE : Humidity may exceed 90% D.B.T. : Dry Bulb Temperature
W.B.T. : Wet Bulb Temperature
Continuous operation at over 90% high
humidity may create condensation and
result in waterdrops on the intake and
outlet vanes.

Do not install the unit near a heat source, steam source and flammable gas.
Select a location where the power supply is within 1.5 metres (59 Inches).
Prepare the installation hole slightly bigger than the actual cabinet size.
Ensure that the minimum distances around the unit are maintained as shown below.
The unit should be inclined 15-20mm (0.6-0.8 Inches) towards the back
for optimum performance.
For optimum performance Drain should be plugged.
For testing purpose and enhanced performance use the Installation
guidelines given below
INSTALLING THE UNIT
-: 7 :-
A/C INSTALLATION
CEILING
Over 15cm
(0.6 Inches)
WALL
34.6cm
(1.4 Inches)
Less than 20 cm (0.8 Inches)
58cm
(2.3 Inches)
Fence
or likewise
Over 50cm
(2.0 Inches)
fixed to concrete wall
Vertical
supporting bar
Glass window
or thin partition
External view of air-conditioner
installation
Side
supporting
bar
concrete wall
Over 15cm
(0.6 Inches)
45cm
(1.8 Inches)

-: 8 :-
A/C INSTALLATION
INSTALLATION PROCEDURES
1
2
3
4
5
Remove the cabinet screws.
LC Series from left (1 nos) and
right (1 nos) side.
XC Series from back side (2 nos).
Slide the chassis out from the cabinet.
Place cabinet into the installation hole.
Slide the chassis into the cabinet.
Lock the chassis to the cabinet with
screws.
LC Series from left (1 nos) and
right (1 nos) side.
XC Series from back side (2 nos).
Tilt down for
better drainage
(max. 10mm).
Secure it with wood screws or
nails
6
7
Depending upon the location of the AC
outlet, route the AC cord to either
left or right side while installing the
front grille.
Attach the front grille to the cabinet
and fasten it with screws.
This figure shows the AC cord routed to the left side.

REMOVAL OF FRONT GRILLE
1
2Remove the air filter.
Tilt up and pull out the air filter by the
holder
3Remove the front grille.
(a) Remove air filter then remove the
screw on the front.
(b) At bottom right side of the front grille,
press inward on cabinet near the
power cord, and pull the grille outward
to the right until right tab releases.
(c) At the bottom left side, push inward on
cabinet and pull the grille outward to
the left to release the left tab. Do not
pull the bottom edge toward you more
than 3 inches to prevent the two top
tabs from damage.
(d) Slide the front grille upwards to loosen
the two top tabs from slots at the top of
the cabinet.
d
a
b
c
Air Filter
Please hold the Ribs(Shown in Photo)
with your thumbs from top and bottom
and push in left direction to open the
Grille and to take out filter for cleaning.
-: 9 :-
A/C INSTALLATION
Always use at the rated voltage and with a specific air conditioning circuit.
This equipment must be earthed and strongly recommended to be installed with Earth
Leakage Circuit Breaker (ELCB) or Residential Current Device (RCD). Otherwise, it may
cause electric shock or fire in case of malfunction.
A 16 ampere time delay fuse or circuit breaker is required.
2
Nominal cross sectional area of power supply wire must be 3 core x 1.5mm .
The power supply must be from an independent circuit.
All electrical installation must be made in accordance with local wiring and safety regulation
wherever applicable.
There must be a double pole switch with a minimum of 3.5mm contact gap in the fixed
installation circuit.
Please engage an authorized dealer or specialist for the installation work.
ELECTRIC WORK

-: 10 :-
A/C INSTALLATION
Repositioning or transfer of the air conditioner due to renovation or moving requires an
additional service charge, Please consult your dealer before moving.
Select an installation location that can support the weight of the air
conditioner and one that will not cause increased operating noise
and vibration.
Ensure that airflow and noise from the rear side of the unit
(outdoor) when installed do not disturb neighbouring residents.
Obstacles placed in front of the air outlet on the rear side of the unit
(outdoor), or covers placed over it will cause excessive noise and
deterioration in performance.
CONDENSED WATER DRAINAGE
NOISE CONSIDERATION
TRANSFERRING
DRAIN WATER
To achieve maximum cooling efficiency, the airconditioner is
designed to splash the condensation water on the condenser
coil.
In order to avoid the splashing sound, an external drain can be
provided by using the following procedure. This may however
cause a small loss of performance.
1. Slide out the chassis from the cabinet.
2. Remove the rubber plug from the body base plate.
3. Install the Drain Pan at corner of the Cabinet with single
screw.
4. Connect the drain hose to the outlet on the bottom of the
drain pan.
5. Slide the chassis into its original place in the cabinet.
External View
Drain Hose
Slide out the chassis from the cabinet.
Remove the rubber plug from the body
base plate.
1
2
3
4
Slide the chassis back into the cabinet.
Lock the chassis to the cabinet. Then
reinstall the cabinet to the chassis.
Install the drain pan at the right corner
of the cabinet using 1 screw.
Internal View
Screw
Drain Pan
Screw Drain Pan

-: 11 :-
A/C OPERATION
OPERATING THE UNIT
SELECTING OPERATION MODE
SELECTING FAN SPEED
ADJUSTING HORIZONTAL AIRFLOW DIRECTION
Start operation by pressing OFF/ON Button.
The operation will turn on and the display panel will light up.
To stop the operation, press the OFF/ON Button again.
The unit will stop operating and the display panel light will turn off.
Please note that the OFF indication is as follows :
To Start :
To Stop :
Press MODE to select the desired operation.
The indicator will light up and a "beep" sound will indicate
changing setting.
COOL mode
To set room temperature to your preference of cooling comfort.
FAN mode
To provide air circulation without cooling the room.
During Fan operation, temperature setting cannot be selected.
DRY mode
Fan motor Run at only low speed, and cannot be changed. The
comp On/Off duration is controlled by difference between room
temp and set temp.
Press FAN SPEED to choose the speed level of the fan.
The indicator will light up and the "beep" sound will indicate
changing setting.
NOTE:
The latest fan speed setting will be memorized and the
indicator will light up the next time the unit is turned on.
Press to select AIR SWING.
The air circulation will automatically move the
horizontal louvers left and right for better air
distribution around the room.
NOTE:
Using your hands to adjust the direction may
cause the louvers to malfunction. If this
happens, stop operation immediately and restart.
OFF/ON
MODE
MED
HIGH
FAN SPEED
AIR SWING Vertical
louvers
NOTE :
Vertical
adjustment
of the airflow
direction is
done manually.
SETTING DISPLAY TEMPERATURE
Press TEMP ▲or ▼to set the display temperature.
O O
The temperature can be set between 16 C and 30 C
O O
Recommended temperature: 26 C ~ 28 C
NOTES:
The latest temperature setting will be memorized and will appear
on the display the next time it's turned on.
The Display temperature selection is for display purpose only
and shows the temperature set by you.
POWER
TEMP/TIME
COOL
FAN DRY
FAN SPEED
FAN
COOL
DRY
LOW
SWING
TEMP
OFF
OFF

0:00
OFF
TIMER
22:00
OFF
TIMER
22:00
OFF
TIMER
OFF
2
SET
Example:
OFF at 22:00
Select ON or OFF
timer
1
Set the time
2
Confirm
3
TIMER SET
POWERFUL CANCEL
-: 12 :-
A/C OPERATION
SETTING THE OFF/ON TIMER
When ON Timer is set, the unit may start earlier (up to 15 minutes) before
the actual set time in order to achieve the desired temperature on time.
POWERFUL OPERATION
To obtain set temperature quickly:
Press POWERFUL.
To cancel this operation, press the mode.
After POWERFUL is selected, Compressor will turn ON instantly
by-passing delay time (if room temp>Preset temp).
Fan will run at high speed.
POWERFUL
POWERFUL
TIMER
TIMER
Timer operation is based on the clock set in the remote control and repeats
daily once set. For clock setting, please refer to Clock Setting Column.
If timer is cancelled manually or due to power failure, you can restore the
previous setting (once power is resumed) by pressing Set .
SET
SETTING THE SLEEP MODE
SLEEP
SLEEP
To Maximize comfort while sleeping
This operation provides you with a comfortable environment while
O
sleeping by gradually increasing the set temperature 1 C after
2 hours operation.
Can be cancelled by pressing the respective button again.
TIMER SET
POWERFUL CANCEL
1
SET CLOCK RESET
2
3
When the air conditioner is in operation:
Press the TIMER button.
The TIMER indicator light will blink awaiting
for setting.
Press the TIMER ▲or ▼button until the
preferred hour of operation is reached.
Press the SET button to complete the setting.
At this time, the TIMER indicator light is steady
instead of blinking.
NOTE :
1 32
CANCEL TIMER SETTING DURING OFF TIMER
Press the CANCEL button to cancel the time setting.
The TIMER indicator light will turn off.
However the temperature remains displayed.
CANCEL
TIMER
Remote Settings :
1

-: 13 :-
ENERGY SAVING HINTS
HELPFUL INFORMATION
Auto Restart Control
Operation will automatically resume under the previous operation mode.
If the unit was set to TIMER mode, operation will not resume automatically.
Timer Setting
When power failure occurs, the timer setting is cancelled,
Once power returns, reset the timer.
O
Setting the temperature 1 C higher save 10% electricity costs.
Clean the air filter every 2 weeks. Regular cleaning of the air filter preserves efficiency.
Keeping openings closed keeps cool air in and hot air out.
Avoid direct sunlight and heat.
For health reasons do not overcool your room.
Your air conditioner's cooling capacity should match your room size.
ENERGY SAVING HINTS

Clean the cabinet, front grille with a mild soap or detergent and lukewarm water.
The front intake grille can be easily removed for cleaning purpose (refer to Remove
the front intake grille procedure). Gently wash with water and a sponge.
The filter can be easily cleaned using a vacuum cleaner. Vacuum the front of the filter
and then wash the rear with water. If it is badly soiled, wash with a mild household
detergent.
Do not clean with benzene, thinner, scouring powder or cloth soaked in caustic
chemical.
If the unit is extremely dirty, heat transfer is less efficient and the unit may not cool
effectively.
If the air filter becomes clogged with dust, the cooling capacity will drop and 6% of the
electricity used to operate the air conditioner will be wasted.
NOTE: Do not dry the front panel or the air filter in direct sunlight. (Exposure to direct
sunlight may discolour or deform the panel.)
Always turn off the air conditioner and the main power supply
before cleaning the unit.
Switch off the power supply if the unit is not going to be used
for a long period of time.
WARNING
PRE-SEASON INSPECTION
Is the discharged air cold?
After 15 minutes of operation, it is normal for the temperature difference between
O
intake and outlet air to be more than 8 C for cooling.
Are the air intake and outlet vanes of the indoor and outdoor side obstructed ?
Are the remote control batteries weak ?
RECOMMENDED INSPECTION
Usage over several seasons will reduce performance as the unit becomes dirty.
A dirty unit may produce foul odours and dust may clog the dehumidifying drainage.
Seasonal inspection is recommended in addition to regular cleaning.
Consult Panasonic Authorized Service Centre.
-: 14 :-
CARE AND MAINTENANCE

-: 15 :-
TROUBLESHOOTING
Check the following points before calling for repairs or service
if the malfunction persists,
Please contact Panasonic Authorized Service Centre.
BEFORE
Condition
Condition
Condition
2
3
4
Condition 1If the unit is too noisy
during operation.
If the unit does not
operate.
If the unit does not
cool properly.
If water drips off the rear
of the unit.
The following sounds are normal during
operation:
A low humming sound indicating that the
unit is operating.
A soft clicking sound when the
compressor turns on and off.
A flowing sound due to circulation of the
refrigerant when the compressor is
turned on.
A s p l a s hin g s o u nd i n d i cati n g
condensation in the condenser coil.
If you hear other noises please consult
Panasonic Authorized Service Centre.
The main power cord is not plugged in.
The main circuit breaker has tripped.
Remote control batteries are weak.
The room is too big for the unit's cooling
capacity.
The ventilation lever is set to OPEN.
The air circulation is impede by curtains
or furniture.
After 15 minutes of operation, it is
normal for the temperature difference
between intake and outlet air to be more
O
than 8 C for cooling.
Humidity is high.
Condensed water is overflowing.
To rectify the problem, mount an
optional drain pan to the unit.
The unit is tilted inward. To rectify this, tilt
the unit slightly outward.
Mount the optional drain pan if you
prefer.
The drain pan may be blocked.
Condition 5If water drips inside the
room.
NOTE:
1. The enclosure opposing the room side
is splash proof (IPX4).
2. Do not install this appliance in laundry
room or other locations where water
may drip from the ceiling, etc.
3. 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 any hazard.
The Circuit breaker frequently trips
or the fuse blows regularly.
If water or foreign objects have
acci den tal ly en ter ed the ai r
conditioner.
If there is abnormal sound during
operation.
To call Panasonic Authorized Service Centre,
IMMEDIATELY turn off the power and contact
Panasonic Authorized Service Centre Ltd.
as soon as any of following events occur.

ACW4PR00601