Panasonic CU-4E27QBR - 8 Printed Circuit Board; Main Printed Circuit Board

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8. Printed Circuit Board

8.1 Main Printed Circuit Board

8.1.1 CU-4E23QBR

Main Page

Default Chapter2
- Table of Contents2
1 Safety Precautions3
2 Specifications5
- Cu-4E23Qbr5
- Cu-4E27Qbr7
- Cu-5E34Qbr9
3 Dimensions21
- Cu-4E23Qbr21
- Cu-4E27Qbr Cu-5E34Qbr21
4 Refrigeration Cycle Diagram22
- Cu-4E23Qbr22
- Cu-4E27Qbr23
- Cu-5E34Qbr24
5 Block Diagram25
- Cu-4E23Qbr25
- Cu-4E27Qbr26
- Cu-5E34Qbr27
6 Wiring Connection Diagram28
- Cu-4E23Qbr28
- Cu-4E27Qbr29
- Cu-5E34Qbr30
7 Electronic Circuit Diagram31
- Cu-4E23Qbr31
- Cu-4E27Qbr32
- Cu-5E34Qbr33
8 Printed Circuit Board34
- Main Printed Circuit Board34
- Noise Filter Printed Circuit Board36
- Display Printed Circuit Board37
9 Installation Information38
- Cu-4E23Qbr38
- Cu-4E27Qbr39
- Cu-5E34Qbr40
10 Installation Instruction41
- Select the Best Location41
- Install the Outdoor Unit42
- Connect the Piping42
- Evacuation of the Equipment43
- Connect the Cable to the Outdoor Unit44
- Heat Insulation45
- Disposal of Outdoor Unit Drain Water45
11 Installation Instruction46
- Select the Best Location46
- Install the Outdoor Unit47
- Connect the Piping47
- Evacuation of the Equipment48
- Connect the Cable to the Outdoor Unit49
- Heat Insulation50
- Disposal of Outdoor Unit Drain Water50
12 Operation Control51
- Cooling Operation51
- Heating Operation52
13 Simultaneous Operation Control53
14 Protection Control54
- Freeze Prevention Control (Cool)54
- Dew Prevention Control (Cool)54
- Electronic Parts Temperature Rise Protection 1 (Cool)54
- Electronic Parts Temperature Rise Protection 2 (Cool)54
- Cooling Overload Control (Cool)55
- Heating Overload Control (Heat)55
- Extreme Low Temperature Compressor Low Pressure Protection Control (Heat)55
- Deice Control56
- Time Delay Safety Control (Restart Control)56
- Seconds Force Operation56
- Total Current Control56
- IPM (Power Transistor) Protection Control56
- Compressor Protection Control (Gas Leak Detection Control 1)57
- Compressor Protection Control (Gas Leak Detection Control 2)57
- Valve Close Detection Control57
- Compressor Discharge High Pressure Protection Control57
15 Cooling Only Operation58
- Servicing Mode58
16 Troubleshooting Guide61
- Self Diagnosis Function61
17 Disassembly and Assembly Instructions64
- Outdoor Unit Removal Procedure (CU-4E23QBR)64
- Outdoor Unit Removal Procedure (CU-4E27QBR CU-5E34QBR)67
18 Technical Data70
- Operation Characteristics (CU-4E23QBR)70
- Operation Characteristics (CU-4E27QBR)82
- Operation Characteristics (CU-5E34QBR)112
19 Exploded View and Replacement Parts List144
- Cu-4E23Qbr144
- Cu-4E27Qbr Cu-5E34Qbr147

Panasonic CU-4E27QBR - 8 Printed Circuit Board; Main Printed Circuit Board

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