Panasonic Air Conditioner CS-S9NKUW-1, CU-S9NKU-1, CS-S12NKUW-1, CU-S12NKU-1, CS-S18NKU-1, CU-S18NKU-1, CS-S22NKU-1, CU-S22NKU-1, CU-2S18NBU-1 Operating Instructions

F568314
ENGLISH  
Before operating the unit, read these operating 
instructions thoroughly and keep them for future 
reference.
QUICK GUIDEQUICK GUIDE
Operating Instructions
Air Conditioner
Model No.
Indoor Unit Single Split
Outdoor UnitOutdoor Unit
CS-S9NKUW-1 CU-S9NKU-1
CS-S12NKUW-1 CU-S12NKU-1
CS-S18NKU-1 CU-S18NKU-1
CS-S22NKU-1 CU-S22NKU-1
Multi Split
Outdoor Unit
CU-2S18NBU-1
© Panasonic Appliances Air-Conditioning Malaysia 
Sdn. Bhd. 2012. Unauthorized copying and distribution 
is a violation of law. 

2
Thank you for purchasing
Panasonic Air  Conditioner
TABLE OF CONTENTSTABLE OF CONTENTS
SAFETY PRECAUTIONS
2~3
MULTI AIR CONDITIONER 
SYSTEM
4
INDOOR UNIT
5
REMOTE CONTROL
6~7
TROUBLESHOOTING
8
INFORMATION
9
QUICK GUIDE
BACK COVER
NOTENOTE
The illustrations in this manual are for 
explanation purposes only and may 
differ from the actual unit. They are 
subjected to change without notice for 
future improvement.
OPERATION CONDITIONOPERATION CONDITION
Use this air conditioner under the following...

ENGLISH
3
 CAUTIONCAUTION
INDOOR UNIT AND OUTDOOR UNIT
Do not wash the indoor unit with water, benzene, 
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...

4
MULTI AIR CONDITIONER SYSTEM
Multi Split Outdoor Unit
(CU-2S18NBU-1)
DEFINITION
Multi air conditioner systems save space by letting you connect multiple indoor units to a single outdoor unit.
POWER SUPPLYPOWER SUPPLY
Models Number Time Delay FuseRated 
Vo l t s
Single Split SystemCS-S9NKUW-1 / CU-S9NKU-1 15 Amps
208/230V CS-S12NKUW-1 / CU-S12NKU-1 15 Amps
CS-S18NKU-1 / CU-S18NKU-1 20 Amps
CS-S22NKU-1 / CU-S22NKU-1 25 Amps
Multi Split SystemCS-S9NKUW-1, CS-S9NKUW-1 / CU-2S18NBU-1
25 Amps 208/230V...

ENGLISH
5
CAUTION• Switch off  the power at the circuit breaker before cleaning.
• Do not touch the aluminium fi n, sharp parts may cause injur y.
1
INDOOR UNIT
•  Wipe the unit gently with a soft, dry cloth.
2
FRONT PANEL
Remove Front Panel
•  Raise and pull to remove the front panel.
•  Wash gently and dry.
Close Front Panel
•  Press down both ends of the front panel to close it 
securely.
3
REMOTE CONTROL RECEIVER
4
ALUMINIUM FIN
5
HORIZONTAL AIRFLOW DIRECTION LOUVER
S9NKUW-1, S12NKUW-1
• Manually...

6
REMOTE CONTROL
Maximum distance: 26ft
INDICATOR
 
POWER(Green)
 TIMER(Orange)
 QUIET(Orange)
 POWERFUL(Orange)
Press the remote control’s button
1
TO TURN ON OR OFF THE UNIT
•  Please be aware of the OFF indication on the remote 
control display to prevent the unit from starting/stopping 
improperly.
2
 TO SET TEMPERATURE
•  Selection range: 60°F ~ 86°F.
•  Operating the unit within the recommended temperature 
could induce energy saving.
COOL mode : 78˚F ~ 82˚F.
DRY mode : 2˚F ~ 4˚F lower than room...

ENGLISH
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7
TO ENJOY QUIET OPERATION
•  This operation reduces airfl ow noise.
8TO REACH TEMPERATURE 
QUICKLY
•  Single Split System: This operation stops automatically 
after 20 minutes. 
•  Multi Split System: Press the button again or turn OFF the 
unit to stop this operation.
9Press and hold for 5 seconds to dim or restore the 
unit’s indicator brightness.
10Press and hold for approximately 10 seconds to 
show temperature setting in °C or °F.
11Press and hold for approximately 5 seconds to show...

8
TROUBLESHOOTING
The following symptoms do not indicate malfunction.The following symptoms do not indicate malfunction.
SYMPTOMSYMPTOMCAUSECAUSE
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 odor.►•  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...

ENGLISH
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Information for Users on Collection and Disposal of Old Equipment and used Batteries
[Information on Disposal in other Countries 
outside the European Union]
These symbols are only valid in the European 
Union. If you wish to discard these items, 
please contact your local authorities or dealer 
and ask for the correct method of disposal.Note for the battery symbol (bottom two 
symbol examples): 
This symbol might be used in combination with 
a chemical symbol. In this case it complies with...

MEMO