Panasonic CU-E18RKUA

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30

10.2 Outdoor Unit

10.2.1 Main Printed Circuit Board

10.2.1.1 CU-E9RKUA CU-E12RKUA

CN-DCFM

F

G

1

CN-STM

CN4

CN5

CN-TANK

CN-TH

CN-HOT

CURRENT

TRANSFORMER

(CT)

DA TA

AC-WHT

AC-BLK

POWER

TRANSISTOR

(IPM)

Table of Contents

Default Chapter2
- Table of Contents2
1 Safety Precautions3
2 Specification5
3 Features11
4 Location of Controls and Components12
- Indoor Unit12
- Outdoor Unit12
- Remote Control12
5 Dimensions13
- Indoor Unit13
- Outdoor Unit15
6 Refrigeration Cycle Diagram16
- Cu-E9Rkua Cu-E12Rkua16
- Cu-E18Rkua Cu-E24Rkua17
7 Block Diagram18
- Cs-E9Rkuaw Cu-E9Rkua Cs-E12Rkuaw Cu-E12Rkua18
- Cs-E18Rkuaw Cu-E18Rkua Cs-E24Rkuaw Cu-E24Rkua19
8 Wiring Connection Diagram20
- Indoor Unit20
- Outdoor Unit22
9 Electronic Circuit Diagram24
- Indoor Unit24
- Outdoor Unit26
10 Printed Circuit Board28
- Indoor Unit28
- Outdoor Unit30
11 Installation Instruction (E9RK and E12RK)33
- Select the Best Location33
- Indoor Unit34
  - Indoor Unit Installation35
  - Connect the Cable to the Indoor Unit36
- Outdoor Unit38
12 Installation Instruction (E18RK and E24RK)41
- Select the Best Location41
- Indoor Unit42
- Outdoor Unit46
13 Operation Control49
- Basic Function49
- Indoor Fan Speed Control50
- Indoor Fan Motor Operation51
- Outdoor Fan Motor Operation51
- Airflow Direction52
- Quiet Operation (Cooling Mode/Cooling Area of Dry Mode)53
- Quiet Operation (Heating)54
- Powerful Mode Operation54
- Timer Control54
- Auto Restart Control55
- Indication Panel55
- ECONAVI and AUTO COMFORT Operation55
14 Operation Control (for Multi Split Connection)59
- Cooling Operation59
- Soft Dry Operation59
- Heating Operation59
- Automatic Operation (for Multi Split Connection Only)60
- Indoor Fan Motor Operation60
- Powerful Mode Operation60
- Auto Restart Control60
- Indication Panel60
15 Protection Control (E9RK and E12RK)61
- Protection Control for All Operations61
- Protection Control for Cooling & Soft Dry Operation63
16 Protection Control (E18RK and E24RK)66
- Protection Control for All Operations66
- Protection Control for Cooling & Soft Dry Operation67
  - Cooling Overload Control68
  - Freeze Prevention Control68
17 Servicing Mode70
- Auto Off/On Button70
- Cooling Only Operation (Single Connection Only, Multi Connection Please Refer to Multi Outdoor Manual)71
- Remote Control Button72
18 Troubleshooting Guide73
- Refrigeration Cycle System73
- Breakdown Self Diagnosis Function75
- Error Code Table76
- Self-Diagnosis Method78
  - Troubleshooting79
  - H99 (Indoor Freeze Prevention Protection: Cooling or Soft Dry)96
19 Disassembly and Assembly Instructions107
- Cs-E9Rkuaw Cs-E12Rkuaw107
- To Remove Cross Flow Fan and Indoor Fan Motor109
- Cs-E18Rkuaw Cs-E24Rkuaw111
- Outdoor Electronic Controller Removal Procedure114
20 Technical Data116
- Cool Mode Performance Data116
- Heat Mode Performance Data120
21 Service Data122
- Cool Mode Outdoor Air Temperature Characteristic122
- Heat Mode Outdoor Air Temperature Characteristic126
- Piping Length Correction Factor130
22 Exploded View and Replacement Parts List132
- Indoor Unit132
- Outdoor Unit138

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