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Panasonic CS-E9DKEW Refrigeration cycle system, 2. Troubleshooting Air Conditioner

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CS-E9DKEW CU-E9DKE / CS-E12DKEW CU-E12DKE

2. Troubleshooting Air ConditionerRefrigeration cycle system

In order to diagnose malfunctions, make sure that there are no electrical problems before inspecting the refrigeration cycle. Such problems include insufficient insulation, problem with the power source, malfunction of a compressor and a fan.

The normal outlet air temperature and pressure of the refrigeration cycle depends on various conditions, the standard values for them are shown in the table to the right.

Contents

Air Conditioner CS-E9DKEW CU-E9DKE CS-E12DKEW CU-E12DKE CONTENTS Page 1Features 2 Functions 2.1.Remote Control Operation OFF / ON Operation Mode Selection Indoor Fan Speed Selection 2.2.Indoor Unit Automatic Operation Switch Operation Indication Lamps (LED) Four Operation Modes Automatic and 5 Manual Indoor Breakdown Self Diagnosis Function Low Pressure Control (Gas Leakeage Detection) Indoor Power Relay Control 2.3.Outdoor Unit Time Delay Safety Control 30 seconds Forced Operation Overload Protection Control Total Running Current Control 3 Product Specifications 3.1.CS-E9DKEW CU-E9DKE Page 3.2.CS-E12DKEW CU-E12DKE Page 4 Dimensions 4.1.Indoor Unit & Remote Control 4.2.Outdoor Unit 5 Refrigeration Cycle Diagram 6 Block Diagram 7 Wiring Diagram 8 Operation Details 8.1.Basic Function Table (d): Indoor Air Temperature Shifting 8.1.2.Compressor Operation Frequency 8.1.2.1.The frequency determination method (Cooling operation control) 8.1.2.1.1.Basic specification 8.1.2.1.2.Initial frequency determination 8.1.2.1.3.Change frequency determination 8.1.2.1.4.The frequency changed method 8.1.2.2.The frequency determination method (Heating operation control) 8.1.2.2.1.Basic specification 8.1.2.2.2.Initial frequency determination 8.1.2.2.3.Change frequency determination 8.1.2.2.4.The frequency changed method 8.1.2.3.The frequency determination method (Soft Dry operation control) 8.1.2.3.1.Basic specification 8.1.2.3.2.Initial frequency determination 8.1.2.3.3.The frequency change method 8.1.3.Cooling Operation 8.1.3.1.Thermostat control 8.1.4.Soft Dry Operation 8.1.4.1.Thermostat control 8.1.5.Heating Operation 8.1.5.1.Thermostat control 8.1.6.Automatic Operation 8.1.7.Indoor Fan Motor Operation A. Basic Rotation Speed (rpm) B. Indoor Fan Control Page C. Fan Motor Control D. Deodorizing Control 8.1.8.Outdoor Fan Motor Operation 8.1.9.Airflow Direction 8.1.9.1.Vertical Airflow 8.1.9.2.Horizontal Airflow 8.1.10. Quiet operation (Cooling Mode/Cooling area of Dry Mode) A. Purpose B. Control condition C. Control contents 8.1.10.1. Quiet operation (Heating) 8.1.11. Powerful Mode Operation 8.1.12. Delay ON Timer Control 8.1.13. Delay OFF Timer Control 8.1.14. Auto Restart Control 8.1.15. Indication Panel 8.1.16. Auto Operation Switch 8.1.17. Ionizer Operation Purpose Control Condition 8.1.17.1. Ionizer Problem Detection Control ERROR PROTECTION BREAKDOWN 8.1.17.2. Ionizer Operation case study 8.2.Protection Control Features 8.2.1.4.IPM (Power transistor) Prevention Control 8.2.1.5.Compressor Overheating Prevention Control 8.2.1.6.Low Pressure Prevention Control (Gas Leakage Detection) a. Control start conditions 8.2.1.7.Compressor Tank Temperature Rise Protection Control 8.2.1.8.Low Frequency Protection Control 8.2.1.9.Low Frequency Protection Control 8.2.1.10. Minimum Frequency Protection Control 8.2.1.11. DC Current Protection Control 8.2.2.Protection Control For Cooling & Soft Dry Operation 8.2.2.1.Outdoor Air Temperature Control 8.2.2.2.Cooling Overload Control 8.2.2.3.Anti-FreezingControl 8.2.2.4.Anti-DewFormation Control 8.2.3.Protection Control For Heating Operation 8.2.3.1.Intake Air Temperature Control 8.2.3.2.Outdoor Air Temperature Control 8.2.3.3.Overload Protection Control 8.2.3.4.Deice Control A. Deice operation (Normal Deice Operation) Page 9 Operating Instructions Installation Precautions Warning Caution Operation Precautions Indoor Unit Outdoor Unit Remote Control Auto, Heat, Cool, Dry Start the operation Select the desired operation Set the temperature. (16°C~30°C) Powerful, Quiet, Ion, Fan Speed, Air Swing Enables ion operation Adjust the vertical or horizontal airﬂow direction louver Enables quiet operation Enables powerful operation Timer Select ON or OFF timer Set the desired time Conﬁrm the setting Switch off the power supply before cleaning Raise and pull to remove Wash and dry Vacuum, wash and dry Vacuum the super alleru-busterﬁlter 10 Installation Instructions 10.1. Safety Precautions Page Attached accessories Indoor/Outdoor Unit Installation Diagram SELECT THE BEST LOCATION INDOOR UNIT OUTDOOR UNIT 10.2. Indoor Unit 3.For the embedded piping 10.2.5.CONNECT THE CABLE TO THE INDOOR UNIT INSTALLATION OF SUPER ALLERU-BUSTERFILTER HOW TO TAKE OUT FRONT GRILLE AUTO SWITCH OPERATION 10.3. Outdoor Unit 10.3.4. EVACUATION OF THE EQUIPMENT CAUTION 10.3.5. CONNECT THE CABLE TO THE OUTDOOR UNIT Note: 10.3.6.PIPE INSULATION DISPOSAL OF OUTDOOR UNIT DRAIN WATER CHECK THE DRAINAGE EVALUATION OF THE PERFORMANCE CHECK ITEMS 11 Installation And Servicing Air Conditioner Using R410A 11.1. Outline 11.2. Tools For Installing/Servicing Refrigerant Piping 11.2.2. R410A Tools Page 11.2.3. R410A Tools Which Are Usable for R22 Models 11.3. Refrigerant Piping Work 11.3.3. Storing and Managing Piping Materials 11.4. Installation, Transferring, Servicing 11.4.2. Transferring (Using New Refrigerant Piping) 11.4.3. AC Units Replacement (Using Existing Refrigerant Piping) About R410A Refrigerant 11.4.5. Recharging Refrigerant During Servicing Precaution: 11.4.6. Brazing 11.4.7. Servicing Tips 12 Servicing Information 12.1.Troubleshooting 2. Troubleshooting Air Conditioner Refrigeration cycle system 12.2. Breakdown Self Diagnosis Function Error Codes Table Abnormality / Protection control Abnormality Primary location to verify Judgement 12.3. Remote Control 12.4. Disassembly of Parts Page d. Outdoor Electronic Controller Removal Procedure 13 Technical Data 13.1. Operation Characteristics 13.1.2. CS-E12DKEW CU-E12DKE 13.2. Sensible Capacity Chart 14 Exploded View (Indoor Unit) 14.1. CS-E9DKEW CS-E12DKEW 15 Replacement Parts List (Indoor Unit) 15.1. CS-E9DKEW CS-E12DKEW 16 Exploded View (Outdoor Unit) 16.1. CU-E9DKE CU-E12DKE 17 Replacement Parts List (Outdoor Unit) CU-E9DKE CU-E12DKE 18 Electronic Circuit Diagram 18.1. Indoor Unit SCHEMATIC DIAGRAM 2/4 SCHEMATIC DIAGRAM 3/4 SCHEMATIC DIAGRAM 4/4 18.2. Outdoor Unit SCHEMATIC DIAGRAM 2/3 SCHEMATIC DIAGRAM 3/3 Page How to use electronic circuit diagram 18.3. Remote Control 18.4.Print Pattern Indoor Unit Printed Circuit Board 18.5.Print Pattern Outdoor Unit Printed Circuit Board