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16.1.3 CS-S18NKU-1 CU-S18NKU-1
Models:
CS-S12NKUW-1
CS-S18NKU-1
CS-S22NKU-1
CS-S9NKUW-1
CU-S12NKU-1
CU-S18NKU-1
CU-S22NKU-1
CU-S9NKU-1
1
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103 pages, 10.59 Mb
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16.1.3 CS-S18NKU-
1 CU-S18NKU-1
•
Cooling
Characteristic
o
Room temperature:
81°F (DBT), 66°F (WBT)
o
Operation condition:
High fan speed
o
Piping
length:
16.4ft
o
Compressor
Freq:
Fc
Contents
Main
TABLE OF CONTENTS
3
1. Safety Precautions
The items to be followed are classified by the symbols:
4
2. Specification
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9. Printed Circuit Board
9.1 Indoor Unit
9.1.1 Main Printed Circuit Board
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9.2.1.2 CU-S18NKU-1 CU-S22NKU-1
10. Installation Instruction
10.1 S9NKUW-1 S12NKUW-1
10.1.1 Select the Best Location 10.1.1.1 Indoor Unit
10.1.1.2 Outdoor Unit
10.1.2 Indoor/Outdoor Unit Installation Diagram
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10.1.3.7 Connect the Cable to the Indoor Unit
10.1.3.8 Wire Stripping and connecting requirement
10.1.3.9 Cutting and flaring the piping
10.1.4 Outdoor Unit 10.1.4.1 Install the Outdoor Unit
10.1.4.2 Connect the Piping 10.1.4.2.1 Connecting the piping to indoor
10.1.4.2.2 Connecting the piping to outdoor
10.1.4.2.3 Connecting the piping to outdoor multi
10.1.4.2.4 Gas leak checking
10.1.4.3 Evacuation of the equipment
10.1.4.4 Connect the Cable to the Outdoor Unit
10.1.4.5 Piping Insulation
10.2 S18NKU-1 S22NKU-1
10.2.1 Select the Best Location 10.2.1.1 Indoor Unit
10.2.1.2 Outdoor Unit
10.2.2 Indoor/Outdoor Unit Installation Diagram
10.2.3 Indoor Unit 10.2.3.1 How to Fix Installation Plate
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10.2.3.7 Connect the Cable to the Indoor Unit
10.2.3.8 Wire Stripping and connecting requirement
10.2.3.9 Cutting and flaring the piping
10.2.4 Outdoor Unit 10.2.4.1 Install the Outdoor Unit
10.2.4.2 Connect the Piping 10.2.4.2.1 Connecting the piping to indoor
10.2.4.2.2 Connecting the piping to outdoor
10.2.4.2.3 Gas leak checking
10.2.4.3 Evacuation of the equipment
10.2.4.4 Connect the Cable to the Outdoor Unit
10.2.4.5 Piping Insulation
11. Operation Control
11.1 Basic Function
11.1.1 Internal Setting Temperature
11.1.2 Cooling Operation 11.1.2.1 Thermostat control
11.1.3 Soft Dry Operation 11.1.3.1 Thermostat control
11.2 Indoor Fan Motor Operation
11.2.1 Basic Rotation Speed
11.3 Outdoor Fan Motor Operation (For S9NK and S12NK)
11.4 Outdoor Fan Motor Operation (For S18NK and S22NK)
11.5 Airflow Direction
11.6 Quiet Operation (Cooling Mode/Cooling Area of Dry Mode)
11.7 Powerful Mode Operation
11.8 Timer Control
11.8.1 ON Timer Control
11.8.2 OFF Timer Control
11.9 Random Auto Restart Control
11.10 Indication Panel
12. Protection Control
12.1 Restart Control (Time Delay Safety Control)
12.2 30 Seconds Forced Operation
12.3 Total Running Current Control
12.4 IPM (Power Transistor) Prevention Control
12.5 Compressor Overheating Prevention Control (For S18, S22NK only)
12.6 Low Pressure Protection Control (Gas Leakage Detection)
12.7 Low Frequency Protection Control 1
12.8 Low Frequency Protection Control 2
12.9 Outdoor Air Temperature Control
12.10 Cooling Overload Control
12.11 Freeze Prevention Control
12.12 Freeze Prevention Control 2
12.13 Dew Prevention Control
13. Servicing Mode
13.1 Auto Off/On Button
13.2 Remote Control Button
13.2.1 SET Button
13.2.2 RESET (RC)
13.2.3 RESET (AC)
13.2.4 TIMER
14. Troubleshooting Guide
14.1 Refrigeration Cycle System
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14.2 Breakdown Self Diagnosis Function
14.2.1 Self Diagnosis Function (Three Digits Alphanumeric Code)
14.2.2 To Make a Diagnosis
14.2.3 To Display Memorized Error Code (Protective Operation)
14.2.4 To Clear Memorized Error Code after Repair (Protective Operation)
14.3 Error Code Table
14.4 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)
14.4.10 H30 (Compressor Discharge Temperature Sensor Abnormality)
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)
14.4.14 H99 (Indoor Freeze Prevention Protection: Cooling or Soft Dry)
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)
15. Disassembly and Assembly Instructions
15.1 Indoor Electronic Controllers, Cross Flow Fan and Indoor Fan Motor Removal Procedures
15.1.1 To remove front grille
15.1.1.1 To remove power electronic controller
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16. Technical Data
16.1 Operation Characteristics
16.1.1 CS-S9NKUW-1 CU-S9NKU-1
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16.1.2 CS-S12NKUW-1 CU-S12NKU-1
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16.1.3 CS-S18NKU-1 CU-S18NKU-1
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16.1.4 CS-S22NKU-1 CU-S22NKU-1
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17.2 Outdoor Unit
