WH-SXC09H3E5, WH-SXC12H6E5, WH-UX09HE5, WH-UX12HE5 — Panasonic Air Conditioner Service Manual (repair manual). Page 2

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TABLE OF CONTENTS 
1.
 
Safety Precautions .............................................4
 
2.
 
Specifications .....................................................7
 
2.1
 
WH-SXC09H3E5 WH-UX09HE5 ...................7
 
2.2
 
WH-SXC12H6E5 WH-UX12HE5 .................10
 
3.
 
Features.............................................................13
 
4.
 
Location of Controls and Components..........14
 
4.1
 
Indoor Unit ...................................................14
 
4.2
 
Outdoor Unit.................................................38
 
5.
 
Dimensions .......................................................39
 
5.1
 
Indoor Unit ...................................................39
 
5.2
 
Outdoor Unit.................................................40
 
6.
 
Refrigeration and Water Cycle Diagram ........41
 
6.1
 
Standard System (Optional PCB not 
connected) ...................................................42
 
6.2
 
Advance System (Optional PCB connected)...
 ....................................................................42
 
7.
 
Block Diagram ..................................................43
 
7.1
 
WH-SXC09H3E5 WH-UX09HE5 .................43
 
7.2
 
WH-SXC12H6E5 WH-UX12HE5 .................44
 
8.
 
Wiring Connection Diagram ............................45
 
8.1
 
Indoor Unit ...................................................45
 
8.2
 
Outdoor Unit.................................................47
 
9.
 
Electronic Circuit Diagram ..............................48
 
9.1
 
Indoor Unit ...................................................48
 
9.2
 
Outdoor Unit.................................................50
 
10.
 
Printed Circuit Board .......................................51
 
10.1
 
Indoor Unit ...................................................51
 
10.2
 
Outdoor Unit.................................................53
 
11.
 
Installation Instruction.....................................55
 
11.1
 
Indoor Unit ...................................................55
 
11.2
 
Variation of system ......................................62
 
11.3
 
System Installation.......................................74
 
11.4
 
Service and maintenance ............................85
 
11.5
 
Outdoor Unit.................................................86
 
12.
 
Operation and Control .....................................93
 
12.1
 
Basic Function .............................................93
 
12.2
 
Water Pump .............................................. 107
 
12.3
 
Indoor Unit Safety ..................................... 111
 
12.4
 
Auto Restart Control ................................. 111
 
12.5
 
Indication Panel ........................................ 111
 
12.6
 
Indoor Back-Up Heater Control ................ 112
 
12.7
 
Tank Heater Control.................................. 114
 
12.8
 
Base Pan Heater Control (Optional) ......... 116
 
12.9
 
Heater Turn ON/OFF priority Control........ 116
 
12.10
 
Force Heater Mode................................... 117
 
12.11
 
Powerful Operation ................................... 119
 
12.12
 
Quiet Operation......................................... 119
 
12.13
 
Sterilization Mode ..................................... 120
 
12.14
 
Outdoor Ambient Thermo OFF Control .... 121
 
12.15
 
Alternative Outdoor Ambient Sensor Control ..
 ................................................................. 122
 
12.16
 
Force DHW mode ..................................... 122
 
12.17
 
Anti Freeze Control ................................... 123
 
12.18
 
Solar Operation (Optional)........................ 124
 
12.19
 
Boiler Bivalent Control .............................. 126
 
12.20
 
External Room Thermostat Control (Optional)
 ................................................................. 128
 
12.21
 
Three Ways Valve Control........................ 129
 
12.22
 
Two Ways Valve Control........................... 129
 
12.23
 
External OFF/ON Control ......................... 130
 
12.24
 
External Compressor Switch (Optional PCB) ..
 ................................................................. 131
 
12.25
 
Heat/Cool Switch (Optional PCB) ............. 132
 
12.26
 
SG Ready Control (Optional PCB) ........... 133
 
12.27
 
Demand Control (Optional PCB) .............. 135
 
12.28
 
Holiday Mode ............................................ 136
 
12.29
 
Dry Concrete............................................. 136
 
12.30
 
Flow Sensor .............................................. 136
 
13.
 
Protection Control......................................... 137
 
13.1
 
Protection Control for All Operations ........ 137
 
13.2
 
Protection Control for Heating Operation.. 139
 
13.3
 
Protection Control for Cooling Operation.. 141
 
14.
 
Servicing Mode .............................................. 142
 
14.1
 
How to Take Out Front Plate .................... 142
 
14.2
 
Test Run ................................................... 142
 
14.3
 
Expansion Vessel Pre Pressure Checking ......
 ................................................................. 142
 
14.4
 
Pump Down Procedures........................... 143
 
14.5
 
How To Adjust Pump Speed..................... 144
 
14.6
 
How To Adjust Pump Speed..................... 145
 
14.7
 
How To Unlock Cool Mode ....................... 146
 
14.8
 
EEPROM Factory Default Data Setup 
Procedure ................................................. 147
 
14.9
 
Dry Concrete Setup .................................. 148
 
15.
 
Maintenance Guide........................................ 150
 
15.1
 
Maintenance for Water Filter Set .............. 151
 
16.
 
Troubleshooting Guide................................. 153
 
16.1
 
Refrigeration Cycle System ...................... 153
 
16.2
 
Relationship between the Condition of the Air-
to-Water Heatpump Indoor and Outdoor Units 
and Pressure and Electric Current............ 154
 
16.3
 
Breakdown Self Diagnosis Function ......... 155
 
16.4
 
Error Codes Table..................................... 157
 
16.5
 
Self-diagnosis Method .............................. 159
 
17.
 
Disassembly and Assembly Instructions ... 207
 
17.1
 
To Remove Front Plate............................. 207
 
17.2
 
To Remove Pressure Gauge .................... 207
 
17.3
 
To Open Control Board Cover .................. 208
 
17.4
 
To Remove Control Panel ........................ 208
 
17.5
 
To Remove RCCB .................................... 209
 
17.6
 
To Remove Transformer and Electronic 
Controller Board........................................ 209
 
17.7
 
To Open Control Board............................. 210
 
17.8
 
To Remove Pressure Relief Valve, Air Purge 
Valve and Flow Sensor............................. 210
 
17.9
 
To Remove Water Pump and Bottle Complete
 ................................................................. 211
 
17.10
 
To Remove Filter ...................................... 212
 
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