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Air Conditioner
Panasonic
CS-S18NKU-1 Outdoor Unit, CU-S9NKU-1 CU-S12NKU-1 CU-S18NKU-1 CU-S22NKU-1
Models:
CS-S9NKUW-1
CS-S22NKU-1
CU-S18NKU-1
CS-S18NKU-1
CS-S12NKUW-1
CU-S22NKU-1
CU-S12NKU-1
CU-S9NKU-1
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Troubleshooting
Specification
Operation Characteristics
Install
Error codes
Refrigeration Cycle Diagram
Dimension
Reset RC
Timer Control
Internal Setting Temperature
Page 12
Image 12
4.2
Outdoor Unit
4.2.1
CU-S9NKU-1
CU-S12NKU-1
4.2.2
CU-S18NKU-1
CU-S22NKU-1
12
Page 11
Page 13
Page 12
Image 12
Page 11
Page 13
Contents
Indoor Unit Outdoor Unit
CU-S12NKU-1
CS-S18NKU-1 CU-S18NKU-1 CS-S22NKU-1 CU-S22NKU-1
Table of Contents
Safety Precautions
Items to be followed are classified by the symbols
Page
Specification
CU-S9NKU-1 CU-S12NKU-1 ARI
DRY Bulb WET Bulb
CS-S18NKU-1 CS-S22NKU-1
Piping
Indoor Unit Outdoor Unit Remote Control
Location of Controls and Components
Dimensions
Indoor Unit
CS-S9NKUW-1 CS-S12NKUW-1
CS-S18NKU-1 CS-S22NKU-1
CU-S9NKU-1 CU-S12NKU-1 CU-S18NKU-1 CU-S22NKU-1
Refrigeration Cycle Diagram
CS-S18NKU-1 CU-S18NKU-1 CS-S22NKU-1 CU-S22NKU-1
Block Diagram
CS-S18NKU-1 CU-S18NKU-1 CS-S22NKU-1 CU-S22NKU-1
Wiring Connection Diagram
CS-S18NKU-1 CS-S22NKU-1
CU-S9NKU-1 CU-S12NKU-1
CU-S18NKU-1
CU-S22NKU-1
Electronic Circuit Diagram
CS-S18NKU-1 CS-S22NKU-1
Outdoor Unit
CU-S18NKU-1
CU-S22NKU-1
Printed Circuit Board
Main Printed Circuit Board
Power Printed Circuit Board Indicator Printed Circuit Board
CU-S9NKU-1 CU-S12NKU-1
CU-S18NKU-1 CU-S22NKU-1
Installation Instruction
Indoor/Outdoor Unit Installation Diagram
10.1 S9NKUW-1 S12NKUW-1
Select the Best Location
How to Fix Installation Plate
Indoor Unit
This can be used for left rear piping and bottom piping also
Connect the Cable to the Indoor Unit
Page
Install the Outdoor Unit
Outdoor Unit
Gas leak checking
Piping Insulation
10.2 S18NKU-1 S22NKU-1
How to Fix Installation Plate
This can be used for left rear piping and bottom piping also
Connect the Cable to the Indoor Unit
Page
Model S18NKU-1
Evacuation of the equipment
Piping Insulation
Internal Setting Temperature
Operation Control
Basic Function
Cooling Operation
Indoor Fan Motor Operation
Outdoor Fan Motor Operation For S9NK and S12NK
Outdoor Fan Motor Operation For S18NK and S22NK
Airflow Direction
Quiet Operation Cooling Mode/Cooling Area of Dry Mode
11.5.1 Vertical Airflow
Horizontal Airflow
Powerful Mode Operation
Timer Control
On Timer Control
OFF Timer Control
LED Power Timer Quiet Powerful
Indication Panel
Restart Control Time Delay Safety Control
IPM Power Transistor Prevention Control
Protection Control
12.2 30 Seconds Forced Operation
Low Pressure Protection Control Gas Leakage Detection
Low Frequency Protection Control
12.4.2 S18NK, S22NK
Outdoor Air Temperature Control
Cooling Overload Control
Freeze Prevention Control
Dew Prevention Control
Servicing Mode
Auto Off/On Button
Remote Control Button
Reset RC
Reset AC
Timer
Troubleshooting Guide
Refrigeration Cycle System
Condition Cooling Mode Air conditioner
To Display Memorized Error Code Protective Operation
Breakdown Self Diagnosis Function
Self Diagnosis Function Three Digits Alphanumeric Code
To Make a Diagnosis
Error Code Table
Abnormality / Protection control
Troubleshooting Flowchart
14.4.1 H11 Indoor/Outdoor Abnormal Communication
14.4.2 H12 Indoor/Outdoor Capacity Rank Mismatched
14.4.3 H14 Indoor Intake Air Temperature Sensor Abnormality
14.4.4 H15 Compressor Temperature Sensor Abnormality
14.4.5 H16 Outdoor Current Transformer Open Circuit
14.4.6 H19 Indoor Fan Motor DC Motor Mechanism Locked
14.4.7 H23 Indoor Pipe Temperature Sensor Abnormality
14.4.8 H27 Outdoor Air Temperature Sensor Abnormality
14.4.9 H28 Outdoor Pipe Temperature Sensor Abnormality
Malfunction Decision Conditions
14.4.11 H33 Unspecified Voltage between Indoor and Outdoor
14.4.12 H97 Outdoor Fan Motor DC Motor Mechanism Locked
14.4.13 H98 Indoor High Pressure Protection
Malfunction Decision Conditions
14.4.15 F11 Indoor Pipe Temperature Sensor Abnormality
14.4.16 F90 Power Factor Correction Protection
14.4.17 F91 Refrigeration Cycle Abnormality
14.4.18 F93 Compressor Rotation Failure
14.4.19 F95 Cooling High Pressure Abnormality
14.4.20 F96 IPM Overheating
14.4.21 F97 Compressor Overheating
14.4.22 F98 Input Over Current Detection
14.4.23 F99 Output Over Current Detection
Disassembly and Assembly Instructions
To remove front grille
To remove discharge grille
Page
Page
Technical Data
Operation Characteristics
CS-S9NKUW-1 CU-S9NKU-1
Page
CS-S12NKUW-1 CU-S12NKU-1
Page
CS-S18NKU-1 CU-S18NKU-1
Page
CS-S22NKU-1 CU-S22NKU-1
Page
Exploded View and Replacement Parts List
CS-S12NKUW-1 Remark
CS-S18NKU-1 CS-S22NKU-1
CS-S22NKU-1 Remark
Outdoor Unit
CU-S12NKU-1 Remark
CU-S18NKU-1 CU-S22NKU-1
CU-S22NKU-1 Remark
