Panasonic Cs Me9sb4u Operating Instructions Manual

							Français English
ACXF55-01990
Operating Instructions
Air Conditioner
OPEN
CLOSE
CLOSE
OPEN
POWER
TIMER
AIR SW
ING
OFF/ON
Operating Instructions
Air Conditioner2-11
Instructions d’utilisation
Climatiseur13-23
Model No.
Indoor Unit
CS-ME9SB4U
Outdoor Unit
Multi Split
CU-2E18SBU 
CU-3E19RBU
CU-4E24RBU 
CU-5E36QBU 
						

							2
Thank you for purchasing Panasonic Air Conditioner.
Installation instructions attached.
Before operating the unit, please read these operating instructions thoroughly and keep them for future 
reference.
The illustrations in this manual are for explanation purposes only and may differ from the actual unit. 
They are subject to change without notice for future improvement.
Operation conditions
Use this air conditioner under the following temperature range.
DBT  : Dry bulb temperature
WBT : Wet bulb temperature
Temperature (°F/°C)CS-ME9SB4UCU-2E18SBU, CU-3E19RBU,
CU-4E24RBU, CU-5E36QBU
DBT WBT DBT WBT
COOL Max. 89.6 / 32 73.4 / 23 114.8 / 46 78.8 / 26
Min. 60.8 / 16 51.8 / 11 14.0 / -10 - / -
HEAT Max. 86.0 / 30 - / - 75.2 / 24 64.4 / 18
Min. 60.8 / 16 - / - 5.0 / -15 3.2 / -16
Power Supply
Models Number Time Delay Circuit Breaker Rated Volts
CS-ME9SB4U / CU-2E18SBU 25 Amps
208/230V CS-ME9SB4U / CU-5E36QBU 45 Amps
CS-ME9SB4U / CU-3E19RBU 30 Amps
CS-ME9SB4U / CU-4E24RBU 45 Amps
Outdoor unit
(CU-2E18SBU, CU-3E19RBU, CU-4E24RBU, CU-5E36QBU) 
Multi air conditioner systemMulti air conditioner systems save space by 
letting you connect multiple indoor units to a 
single outdoor unit.
• For complete product features, please refer 
catalogue.
Indoor units
• It is possible to operate the indoor units 
individually or simultaneously. The priority 
of operation is placed on the fi rst unit that 
turned on.
• During operation, HEAT and COOL modes 
cannot activate at the same time for 
different indoor units.
• The power indicator blinks to indicate the 
indoor unit is standing by for a different 
operation mode.
Indoor units 
						

							3
English
Table of contents
Safety precautions ...................4-5
How to use...............................6-7
Cleaning instructions ..................8
Troubleshooting .....................9-10
Information................................11
Accessories
• Remote  control
• AAA or R03 batteries × 2
• Remote control holder
• Screws for remote control 
holder × 2
Quick guide
123
Inserting the batteries
1
  Pull out the back cover of 
remote control
2  Insert AAA or R03 batteries 
(can be used ~ 1 year)
3
  Close the cover
TIMER
SET
CANCEL ON
OFF1
23
SETAC
RC
TIMER
CANCEL
ON
OFF
13
SETCHECKRESETACRC
23
1
Clock setting
1
  Press CLOCK
2
  Set the time
3
  Confi rm
MODE
POWERFUL/
QUIET
TEMP
OFF/ON
TIMER
SET
CANCEL ON
OFF1
23
AIR SWING
FAN SPEED
SETAC
RC
FAN
SPEED
AIR
SWINGAUTO
HEAT
COOL
DRY
FAN
POWERFUL/QUIET
TIMERSET
CANCEL
ON
OFF
123
AIR SWING
FAN SPEED
SETCHECKCLOCKRESETACRC
FANSPEEDAIRSWING
AUTOHEATCOOLDRYFAN
1
2
3
26ft/8m
Basic operation
1  Select the desired mode
DRY AUTO HEAT
COOL
FA N
2  Start/stop the operation
POWER
• Please note that the  
indication is on display to start 
the unit.  
3
  Select the desired temperature
• Selection range (Not 
applicable for FAN mode): 
60°F ~ 86°F / 16°C ~ 30°C.
• Operating the unit within the 
recommended temperature 
range may save energy.
HEAT : 68°F ~ 75°F / 20°C ~
  24°C. 
COOL : 78°F ~ 82°F / 26°C ~
  28°C. 
DRY : 2°F ~ 4°F / 1°C ~ 2°C
  lower than room
  temperature.
• To dim or restore the unit’s indicator 
brightness, press 
 and hold for
5 seconds.
• Use remote control within 26ft/8m 
from the remote control receiver of 
the indoor unit. 
						

							4
Safety precautions
To prevent personal injury, injury to others or 
property damage, please comply with the following: 
Incorrect operation due to failure to follow 
instructions below may cause harm or damage, the 
seriousness of which is classifi ed as below:
WARNINGThis sign warns of 
death or serious injury.
CAUTIONThis sign warns of 
injury or damage to 
property.
The instructions to be followed are classifi ed by the 
following symbols:
This symbol denotes an action 
that is PROHIBITED.
These symbols denote actions 
COMPULSORY.
Air inletAir inlet
Air inletAir inlet
Air outletAir outlet
Air outletAir outlet
Indoor unit
Remote control
Power supply
Outdoor unit
   WARNING
Indoor unit and outdoor unit
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.
Please consult authorised dealer or specialist to 
clean the internal parts, repair, install, remove and 
reinstall the unit. Improper installation and handling 
will cause leakage, electric shock or fi re.
Confi rm with authorised dealer or specialist on 
usage of any specifi ed refrigerant type. 
Using refrigerant type other than the specifi ed may 
cause product damage, burst and injury etc.
Do not install the unit in a potentially explosive or 
fl ammable atmosphere. Failure to do so could result 
in fi re.
Do not insert your fi ngers or other objects 
into the air conditioner indoor or outdoor 
unit, rotating parts may cause injury.
Do not touch the outdoor unit during lightning, it 
may cause electric shock.
Do not expose yourself directly to cold air for a long 
period to avoid excess cooling.
Do not sit or step on the unit, you may fall 
down accidentally.
Remote control
Do not allow infants and small children to play with 
the remote control to prevent them from accidentally 
swallowing the batteries.
Power supply
Do not use a modifi ed cord, 
joint cord, extension cord or 
unspecifi ed cord to prevent 
overheating and fi re.
   
						

							5
English
Safety precautions
To prevent overheating, fi re or electric shock:• Do not share the same power outlet with other 
equipment.
• Do not operate with wet hands. • Do not over bend the power supply cord.
If the supply cord is damaged, it must be 
replaced by the manufacturer, service agent or 
similarly qualifi ed persons in order to avoid a 
hazard.
It is strongly recommended to install this
unit using an Earth Leakage Circuit Breaker
(ELCB) or Ground Fault Interrupt (GFCI) or
Appliance Leakage Current Interrupt (ALCI) to
prevent electric shock or fi re.
Stop using the product if any abnormality/
failure occurs or turn off the power switch and
breaker. (Risk of smoke/fi re/electric shock)
Examples of abnormality/failure
• The ELCB or GFCI or ALCI trip frequently.• Burning smell is observed.• Abnormal noise or vibration of the unit is 
observed.
• Water leaks from the indoor unit.• Power cord becomes abnormally hot.• Fan speed cannot be controlled.• The unit stops running immediately even if it is 
switched on for operation.
• The fan does not stop even if the operation is 
stopped.
Contact your local dealer immediately for
maintenance or repair assistance.
This equipment must be earthed to prevent 
electrical shock or fi re.
Prevent electric shock by switching off the power 
supply:
- Before cleaning or servicing,
- When extended non-use, or
- During abnormally strong lightning activity.
CAUTION
Indoor unit and outdoor unit
Do not wash the indoor unit with water, benzine, 
thinner or scouring powder to avoid damage or 
corrosion at the unit.
Do not use for preservation of precise equipment, 
food, animals, plants, artwork or other objects. 
This may cause quality deterioration, etc.
Do not use any combustible equipment in front of 
the airfl ow outlet to avoid fi re propagation.
Do not expose plants or pet directly to airfl ow to 
avoid injury, etc.
Do not touch the sharp aluminium fi n, 
sharp parts may cause injury.
Do not switch ON the indoor unit when waxing 
the fl oor. After waxing, aerate the room properly 
before operating the unit.
Do not install the unit in oily and smoky areas to 
prevent damage to the unit.
Do not dismantle the unit for cleaning purpose to 
avoid injury.
Do not step onto an unstable bench when 
cleaning the unit to avoid injury.
Do not place a vase or water container on the 
unit. Water may enter the unit and degrade the 
insulation. This may cause an electric shock.
Do not open window or door for long time during 
COOL/DRY mode operation.
Prevent water leakage by ensuring drainage 
pipe is:
- Connected properly,
- Kept clear of gutters and containers, or
- Not immersed in water
After a long period of use or use with any 
combustible equipment, aerate the room 
regularly.
After a long period of use, make sure the 
installation rack does not deteriorate to prevent 
the unit from falling down.
Remote control
Do not use rechargeable (Ni-Cd) batteries. It may 
damage the remote control.
To prevent malfunction or damage of the remote 
control:
• Remove the batteries if the unit is not going to 
be used for a long period of time.
• New batteries of the same type must be 
inserted following the polarity stated. 
						

							6
How to use
Auto OFF/ON button
POWER (Green)
TIMER (Orange)
POWERFUL (Orange)
QUIET (Orange)
AUTO
AIR SWING (Orange)
Use when remote control is misplaced or a malfunction occurs.
1. Press the button once to use in AUTO mode.  
2. Press and hold the button until you hear 1 beep, then release to use in forced 
COOL mode. 
3. Repeat step 2. Press and hold the button until you hear 2 beeps, then release 
to use in normal COOL mode.
4. Repeat step 3. Press and hold the button until you hear 3 beeps, then release 
to use in forced HEAT mode.
• Press the button again to turn off. 
Control Panel
POWER (Green)
TIMER (Orange)
POWERFUL (Orange)
QUIET (Orange)
AUTO
AIR SWING (Orange)
OPEN
CLOSECLOSE
OPEN
PO
WE
R
T
IM
ER
AI
R S
WING
OFF/ONRemote control 
receiver
MODE
POWERFUL/
QUIET
TEMP
OFF/ON
TIMER
SET
CANCEL ON
OFF1
23
AIR SWING
FAN SPEED
SETAC
RC
FAN
SPEED
AIR
SWINGAUTO
HEAT
COOL
DRY
FAN
/
TEMP
OFF/ON
TIMERSET
CANCEL
ON
OFF
123
CHECK
Press and hold for 
approximately 
10 seconds to show 
temperature setting in 
°F or °C.
Press and hold for 
approximately 
5 seconds to show
12-hour (am/pm) or
24-hour time indication.
Press to restore the 
remote control to 
default setting.
Not used in normal 
operations.
Remote control 
display
MODETo select operation mode
AUTO - For your convenience
• During initial operation mode selection, the 
POWER indicator blinks.
• Unit selects operation mode every 10 minutes 
according to setting temperature and room 
temperature.
HEAT - To enjoy warm air
• Unit may take a while to warm up. The POWER 
indicator blinks during the initial warm up 
operation.
COOL - To enjoy cool air
• Provides  effi cient comfort cooling to suit your 
needs.
DRY - To dehumidify the environment
• Unit operates at low fan speed to give a gentle 
cooling operation.
FAN - To circulate air in the room
POWERFUL/
QUIETTo switch between 
powerful & quiet
QUIET POWERFUL
POWERFUL: To reach temperature quickly
POWERFUL
• Press the button again or turn OFF the unit to 
stop this operation.
QUIET: To enjoy quiet operation
QUIET
• This operation reduces airfl ow noise.
Can be activated in all modes and can be
cancelled by pressing the respective button again. 
						

							7
English
FAN SPEEDTo select fan speed
(Remote control display)
• For AUTO, the indoor fan speed is automatically 
adjusted according to the operation mode.
AIR SWINGTo adjust vertical airfl ow 
direction
(Remote control display)
• Keeps the room ventilated.
• In COOL/DRY mode, if AUTO is set, the fl ap 
swings up/down automatically.
• In HEAT mode, if AUTO is set, the horizontal fl ap 
is fi xed at the predetermined position.
• Do not adjust the fl ap by hand.
How to use
To set the timer
2 sets of ON and OFF timers are available 
to turn ON or OFF the unit at different preset 
times.
TIMERSET
CANCEL ON
OFF1
23
AC
CCANCEL
3
ACC
213
1Select ON or OFF 
timerExample: 
OFF at 11:50PM
• Each time pressed:
OFFAMCancel
2Set the time2PM
3Confi rmSET
PM
TIMER
• To cancel ON or OFF timer, press ON or OFF 
to select respective 
 or  then press CANCEL.
• If timer is cancelled manually or due to power 
failure, you can restore the timer again by 
pressing 
ON or OFF to select respective  or 
 then press SET.
• The nearest timer setting will be displayed and 
will activate in sequence.
• When ON Timer is set, the unit may start 
earlier (up to 35 minutes) before the actual 
set time in order to achieve the desired 
temperature on time.
• Timer operation is based on the clock set in 
the remote control and repeats daily once set. 
For clock setting, please refer to Quick guide.
Auto Restart Control
• If power is resumed after a power failure, the 
operation will restart automatically after a 
period of time with previous operation mode 
and airfl ow direction. 
• This control is not applicable when TIMER is 
set. 
						

							8
Cleaning instructions
To ensure optimal performance of the unit, cleaning has to be carried out at regular intervals. 
Please consult authorised dealer.
• Switch off the power at the circuit breaker before cleaning.
• Do not touch the aluminium fi n, sharp parts may cause injury.
• Do not use benzine, thinner or scouring powder.
• Use only soap (
 pH 7) or neutral household detergent.
• Do not use water hotter than 104°F / 40°C.
OPEN
CLOSE
CLOSE
OPEN
PO
WE
R
TIM
ER
AIR SW
ING
OFF/O
N
22  Slowly pull Slowly pull  down the  down the  intake grille. intake grille.
33  Remove the air Remove the air  fi lter from the    fi lter from the    tabs and pull it    tabs and pull it   downwards. downwards.
11  Press the knobs.Press the knobs.
RemoveRemove
CLOSE
OPEN
OPEN
CLOSE
Remove Air Filter
Knob Insert the air 
fi lter to the tabs 
of the intake 
grille. 
Slowly bring 
up the 
intake grille. 
Press the knobs to the 
CLOSE side.
Air Filter Installation
11
22
33
INDOOR UNIT
Wipe the unit gently 
with a soft, dry cloth.
AIR FILTER
Vacuum, wash and dry.
• lt is recommended to clean the air 
fi lter every 6 weeks.
• Do not operate without an air fi lter.
• Wash/rinse the air fi lter gently with 
water to avoid damage to the air fi lter 
surface.
• Do not dry the part with a hair dryer 
or a stove.
• Replace any damaged air fi lters.
For seasonal inspection after extended non-use
• Checking of remote control batteries.
• No obstruction at air inlet and air outlet vents.
• After 15 minutes of operation, it is normal to have the 
following temperature difference between air inlet and 
air outlet vents:
 
COOL: ≥14.4°F/8°C  HEAT: ≥25.2°F/14°C
For extended non-use
• Activate HEAT mode for 2~3 hours to 
remove moisture left in the internal parts 
thoroughly to prevent mould growth.
• Turn off the power supply.
• Remove the remote control batteries. 
						

							9
English
Troubleshooting
The following symptoms do not indicate malfunction.
SymptomCause
Mist emerges from indoor unit. • Condensation effect due to cooling process.
Water fl owing sound during operation. • Refrigerant fl ow inside the unit.
The room has a peculiar odour. • This may be due to damp smell emitted by the wall, 
carpet, furniture or clothing.
Indoor fan stops occasionally during automatic 
fan speed setting.• This helps to remove the surrounding odour.
Airfl ow continues even after operation has 
stopped.• Extraction of remaining heat from the indoor unit 
(maximum 30 seconds).
Operation is delayed a few minutes after 
restarting.• The delay is a protection to the unit’s compressor.
Outdoor unit emits water/steam. • Condensation or evaporation occurs on pipes.
TIMER indicator is always on. • The timer setting repeats daily once set.
Indoor fan stops occasionally during heating 
operation.• To avoid unintended cooling effect.
POWER indicator blinks before the unit is 
switched on.• This is a preliminary step in preparation for the 
operation when the ON timer has been set.
Cracking sound during operation. • Changes of temperature caused the expansion/
contraction of the unit.
Discoloration of some plastic parts. • Discoloration is subject to material types used in plastic 
parts, accelerated when exposed to heat, sun light, UV 
light, or environmental factor.
Check the following before calling for servicing.
SymptomCheck
Operation in HEAT/COOL mode is not working 
effi ciently.• Set the temperature correctly.
• Close all doors and windows.
• Clean or replace the fi lters.
• Clear any obstruction at the air inlet and air outlet 
vents.
Noisy during operation. • Check if the unit has been installed at an incline.
• Close the intake grille properly.
Remote control does not work.
(Display is dim or transmission signal is weak.)• Insert the batteries correctly.
• Replace weak batteries.
The unit does not work. • Check if the circuit breaker is tripped.
• Check if timers have been set.
The unit does not receive the signal from the 
remote control.• Make sure the receiver is not obstructed.
• Certain fl uorescent lights may interfere with signal 
transmitter. Please consult authorised dealer.
Cleaning instructions / Troubleshooting
NON SERVICEABLE CRITERIASSWITCH OFF POWER AT THE CIRCUIT BREAKER then please consult an authorised dealer under 
the following conditions:
• Abnormal noise during operation.
• Water/foreign particles have entered the remote 
control.
• Water leaks from Indoor unit.• Circuit breaker switches off frequently.
• Switches or buttons are not functioning properly. 
						

							10
Diagnostic 
displayAbnormality/Protection 
control
H 00
No memory of failure
H 11Indoor/outdoor abnormal 
communication
H 12Indoor unit capacity unmatched
H 14Indoor intake air temperature 
sensor abnormality
H 15Outdoor compressor 
temperature sensor abnormality
H 16Outdoor current transformer (CT) 
abnormality
H 19Indoor fan motor mechanism lock
H 21Indoor fl oat switch operation abnormality
H 23Indoor heat exchanger 
temperature sensor 1 abnormality
H 24Indoor heat exchanger 
temperature sensor 2 abnormality
H 27Outdoor air temperature sensor 
abnormality
H 28Outdoor heat exchanger 
temperature sensor abnormality
H 30Outdoor discharge pipe 
temperature sensor abnormality
H 33Indoor/outdoor misconnection 
abnormality
H 35Indoor/outdoor water adverse 
current abnormality
H 38Indoor/outdoor mismatch 
(brand code)
Diagnostic 
displayAbnormality/Protection 
control
H 97
Outdoor fan motor mechanism 
lock
H 98Indoor high pressure protection
H 99Indoor operating unit freeze 
protection
F 114-way valve switching 
abnormality
F 90Power factor correction (PFC)
circuit protection
F 91Refrigeration cycle abnormality
F 93Outdoor compressor abnormal 
revolution
F 95Outdoor cooling high pressure 
protection
F 96Power transistor module 
overheating protection
F 97Compressor overheating 
protection
F 98Total running current protection
F 99Outdoor direct current (DC) peak 
detection
The unit stops and the TIMER indicator blinks.
Use remote control to retrieve error code.
TIMER
SET
CANCEL ON
OFF1
23
SETAC
RC
TIMERSET
CANCEL
ON
OFF
13
SETCLOCKRESETACRC
Press until you hear beep sound, then 
write down the error code21
3
Press for 5 seconds 
to quit checkingTurn the unit off and reveal the error code 
to authorised dealer4 Press for 5 seconds
• For certain errors, you may restart the unit for limited operation with 4 beeps when operation starts.
Troubleshooting