Panasonic CS-E9PB4EA Service Manual

2
TABLE OF CONTENTS
1. Safety Precautions ............................................. 3
2. Specifications ..................................................... 5
3. Features ............................................................. 23
4. Location of Controls and Components .......... 24
4.1 Indoor Unit .................................................. 24
4.2 Outdoor Unit ............................................... 24
4.3 Remote Control .......................................... 24
5. Dimensions ....................................................... 25
5.1 Indoor Unit .................................................. 25
5.2 Outdoor Unit ............................................... 26
6. Refrigeration Cycle Diagram ........................... 27
6.1 CS-E9PB4EA CU-E9PB4EA ..................... 27
6.2 CS-E12PB4EA CU-E12PB4EA ................. 28
7. Block Diagram .................................................. 29
7.1 CS-E9PB4EA CU-E9PB4EA ..................... 29
7.2 CS-E12PB4EA CU-E12PB4EA ................. 30
8. Wiring Connection Diagram ............................ 31
8.1 Indoor Unit .................................................. 31
8.2 Outdoor Unit ............................................... 32
9. Electronic Circuit Diagram .............................. 34
9.1 Indoor Unit .................................................. 34
9.2 Outdoor Unit ............................................... 35
10. Printed Circuit Board ....................................... 37
10.1 Indoor Unit .................................................. 37
10.2 Outdoor Unit ............................................... 39
11. Installation Instruction ..................................... 41
11.1 Indoor Unit .................................................. 41
11.2 Outdoor Unit ............................................... 47
12. Operation Control ............................................. 52
12.1 Basic Function ............................................ 52
12.2 Indoor Fan Motor Operation ....................... 53
12.3 Outdoor Fan Motor Operation .................... 54
12.4 Airflow Direction .......................................... 55
12.5 Quiet Operation (Cooling Mode/Cooling Area
of Dry Mode) ............................................... 55
12.6 Quiet Operation (Heating) .......................... 56
12.7 Powerful Mode Operation ........................... 56
12.8 Timer Control .............................................. 56
12.9 Auto Restart Control ................................... 57
12.10 Indication Panel .......................................... 57
12.11 Drain Pump Control Operation ................... 57
13. Protection Control ............................................ 58
13.1 Protection Control For All Operations ......... 58
13.2 Protection Control For Cooling & Soft Dry
Operation .................................................... 60
13.3 Protection Control For Heating
Operation .................................................... 61
14. Servicing Mode ................................................. 62
14.1 Auto OFF/ON Button .................................. 62
14.2 Remote Control Button ...............................63
14.3 Outdoor PCB Test Run Operation
(For Pump Down/Servicing Purpose) .........64
15. Troubleshooting Guide ....................................66
15.1 Refrigeration Cycle System ........................66
15.2 Breakdown Self Diagnosis Function ...........68
15.3 Error Codes Table ......................................69
15.4 Self-diagnosis Method ................................71
16. Disassembly and Assembly Instructions ......95
16.1 Disassembly of Parts ..................................95
16.2 Outdoor Electronic Controller Removal
Procedure ...................................................98
17. Service Data ................................................... 100
17.1 Cool Mode Outdoor Air Temperature
Characteristic ........................................... 100
17.2 Heat Mode Outdoor Air Temperature
Characteristic ........................................... 102
17.3 Piping Length Correction Factor .............. 104
18. Exploded View and Replacement Parts
List .................................................................. 106
18.1 Indoor Unit ............................................... 106
18.2 CZ-BT20E (Front Grille Complete) .......... 110
18.3 Outdoor Unit ............................................ 112

Panasonic CS-E9PB4EA Specifications

General

Type	Air conditioner indoor unit
Multi-split	-
Product color	White
Gas hose diameter	9.52 mm
Liquid hose diameter	6.35 mm
Air conditioner functions	Cooling, Heating
Cooling capacity in watts (nominal)	- W
Operating temperature (cooling) (T-T)	-10 - 43 °C
Operating temperature (heating) (T-T)	-10 - 24 °C
Indoor unit type	Ceiling
Indoor unit width	575 mm
Indoor unit height	260 mm
Indoor unit weight	18000 g
Indoor unit noise level (low speed)	23 dB
Indoor unit noise level (high speed)	35 dB
Outdoor unit noise level	- dB
Design load (cooling)	- kW
Hourly energy consumption (cooling)	- kWh