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Panasonic
CU-2E18NBU service manual Dimensions
Models:
CU-2E18NBU
1
8
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57 pages
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Troubleshooting
Specifications
Operation Characteristics
Install
Parts list
Refrigeration Cycle Diagram
Exploded View and Replacement Parts
Dimension
14.1.3Wiring Error check
Disassembly and Assembly Instructions
Page 8
Image 8
3. Dimensions
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Page 7
Page 9
Page 8
Image 8
Page 7
Page 9
Contents
TABLE OF CONTENTS
Outdoor Unit CU-2E18NBU
List
16. Disassembly and Assembly Instructions
18. Exploded View and Replacement Parts
1. Safety Precautions
7.Power supply connection to the air conditioner
2. Specifications
2.1CU-2E18NBU
Unit
OUTDOOR UNIT
OUTDOOR UNIT
šMulti split combination possibility
Unit
Indoor unit combination
3. Dimensions
4. Refrigeration Cycle Diagram
5. Block Diagram
6. Wiring Connection Diagram
7. Electronic Circuit Diagram
8. Printed Circuit Board
8.1Main Printed Circuit Board
8.2Noise Filter Printed Circuit Board
8.3Display Printed Circuit Board
68.6 - 65.6 ft x 0.2 oz/ft = 0.6 oz
9. Installation Information
9.1Check Points
10. Installation Instruction
10.1 Select The Best Location
10.2 Install The Outdoor Unit
10.3 Connect the Piping
Outdoor Unit Installation Guidelines
Gas Leak Checking
10.4 Evacuation of the Equipment
CUTTING AND FLARING THE PIPING
10.5 Connect The Cable To The Outdoor Unit
10.6 Heat Insulation
11. Operation Control
11.1 Cooling Operation
11.2 Heating Operation
11.2.2Powerful Operation
11.2.3Powerful Operation
11.2.1Outdoor fan control
12.Simultaneous Operation Control
13.2 Dew Prevention control Cool
13. Protection Control
13.1 Freeze Prevention control Cool
13.5 Cooling overload control Cool
13.6 Heating overload control Heat
13.9 Time Delay Safety Control Restart Control
13.12 IPM power transistor Protection Control
13.8 Deice Control
13.10 30 seconds Force Operation
13.15 Valve close detection control
14. Servicing Mode
14.1 CU-2E18NBU
14.1.3Wiring Error check
14.1.4Power Save Mode
14.1.5Mode priority function
14.1.6Cooling only function
15. Troubleshooting Guide
15.1 Self Diagnosis Function
Page
Page
16. Disassembly and Assembly Instructions
16.1 Outdoor Unit Removal Procedure
16.1.3Removing the Control P.C. Board
16.1.4Removing the Propeller Fan and Fan Motor
Page
šCooling Characteristic
17. Technical Data
17.1 Operation Characteristics
šCooling Characteristic
Compressor Freq Fc
šPiping Length Characteristic Cooling
šPiping Length Characteristic Cooling
Condition Room temperature 81F DBT, 66F WBT Operation condition High fan speed Outdoor temperature 95F DBT Compressor Freq Fc
šHeating Characteristic
šHeating Characteristic
Condition Room temperature 68F DBT Operation condition High fan speed Piping Length 24.6ft Compressor Freq Fh
šPiping Length Characteristic Heating
šPiping Length Characteristic Heating
Condition Room temperature 68F DBT Operation condition High fan speed Outdoor temperature 47F DBT, 43F WBT Compressor Freq Fh
Compressor Freq Fc
šCooling Characteristic
17.1.2Two Indoor Unit Operation
šCooling Characteristic
Compressor Freq Fc
šCooling Characteristic
Compressor Freq Fc
šPiping Length Characteristic Cooling
Condition Room temperature 81F DBT, 66F WBT Operation condition High fan speed Outdoor temperature 95F DBT Compressor Freq Fc
šPiping Length Characteristic Cooling
Condition Room temperature 81F DBT, 66F WBT Operation condition High fan speed Outdoor temperature 95F DBT Compressor Freq Fc
šPiping Length Characteristic Cooling
Condition Room temperature 81F DBT, 66F WBT Operation condition High fan speed Outdoor temperature 95F DBT Compressor Freq Fc
šHeating Characteristic
Condition Room temperature 68F DBT Operation condition High fan speed Piping Length 24.6ft Compressor Freq Fh
šHeating Characteristic
Condition Room temperature 68F DBT Operation condition High fan speed Piping Length 24.6ft Compressor Freq Fh
šHeating Characteristic
Condition Room temperature 68F DBT Operation condition High fan speed Piping Length 24.6ft Compressor Freq Fh
šPiping Length Characteristic Heating
Condition Room temperature 68F DBT Operation condition High fan speed Outdoor temperature 47F DBT, 43F WBT Compressor Freq Fh
šPiping Length Characteristic Heating
Condition Room temperature 68F DBT Operation condition High fan speed Outdoor temperature 47F DBT, 43F WBT Compressor Freq Fh
šPiping Length Characteristic Heating
Condition Room temperature 68F DBT Operation condition High fan speed Outdoor temperature 47F DBT, 43F WBT Compressor Freq Fh
18. Exploded View and Replacement Parts List
REF. NO
DESCRIPTION & NAME
Q’TY
CU-2E18NBU
