Panasonic WH-MDF12C6E5, Service Manual

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TABLE OF CONTENTS
PAGE PAGE
1. Safety Precautions .............................................3
2. Specifications .....................................................5
2.1 WH-MDF12C6E5 (WH-MDF12C6E5-1) .......5
2.2 WH-MDF14C6E5 (WH-MDF14C6E5-1) .......7
2.3 WH-MDF16C6E5 (WH-MDF16C6E5-1) .......9
3. Features.............................................................11
4. Location of Controls and Components..........12
4.1 Mono bloc Unit .............................................12
5. Dimensions .......................................................19
5.1 Mono bloc Unit .............................................19
6. Refrigeration and Water Cycle Diagram ........20
7. Block Diagram ..................................................22
8. Wiring Connection Diagram ............................23
9. Electronic Circuit Diagram ..............................25
10. Printed Circuit Board .......................................27
10.1 Water System ..............................................27
10.2 Refrigerant System ......................................29
11. Installation Instruction
Mono Bloc Unit .................................................31
11.1 Select the Best Location ..............................33
11.2 Mono Bloc Unit Installation ..........................33
11.3 Piping Installation.........................................34
11.4 Connect The Cord And Cable To Mono Bloc
Unit...............................................................35
12. Operation and Control .....................................40
12.1 Basic Function .............................................40
12.2 Water Pump .................................................51
12.3 Pump Down Operation ................................52
12.4 Flow Switch..................................................52
12.5 Force Heater Mode Operation .....................52
12.6 Mono Bloc Unit Safety .................................53
12.7 Auto Restart Control ....................................53
12.8 Indication Panel ...........................................53
12.9 Back-Up Heater Control...............................54
12.10 Tank Booster Heater Control .......................54
12.11 Base Pan Heater Control (Optional) ............55
12.12 Three Way Valve Control.............................55
12.13 Sterilization Mode ........................................56
12.14 Quiet Operation............................................56
12.15 Anti Freeze Control......................................56
12.16 Solar Operation (Optional)...........................57
12.17 External Room Thermostat Control
(Optional) .....................................................60
13. Protection Control............................................61
13.1 Protection Control For All Operations ..........61
13.2 Protection Control for Heating Operation ....63
14. Servicing Mode .................................................64
14.1 Test Run ......................................................64
14.2 Proper Pump Down Procedure....................64
14.3 How To Adjust Water Flow Rate................. 64
14.4 Expansion Vessel Pre Pressure
Checking ..................................................... 64
15. Maintenance Guide.......................................... 65
16. Troubleshooting Guide................................... 67
16.1 Refrigeration Cycle System ........................ 67
16.2 Relationship Between The Condition Of
The Mono bloc Unit And Pressure And
Electric Current ........................................... 68
16.3 Breakdown Self Diagnosis Function ........... 69
16.4 Error Codes Table....................................... 70
16.5 Self-diagnosis Method ................................ 72
17. Disassembly and Assembly Instructions ... 106
17.1 To Remove The Cabinet Front Plate ........ 106
17.2 To Remove The Cabinet Top Plate .......... 106
17.3 To Remove The Cabinet Rear Plate......... 107
17.4 To Remove Pressure Gauge .................... 107
17.5 To Remove RCCB .................................... 107
17.6 To Remove Transformer and Electronic
Controller Board........................................ 108
17.7 To Remove Pressure Relief Valve and
Air Purge Valve ......................................... 108
17.8 To Remove Flow Switch ........................... 109
17.9 To Remove Water Pump .......................... 109
17.10 To Remove Bottle Complete..................... 109
18. Technical Data ............................................... 110
18.1 Operation Characteristics ......................... 110
18.2 Heating Capacity Table............................. 113
18.3 Hydraulic Pump Performance................... 113
19. Exploded View and Replacement Parts
List .................................................................. 114
19.1 WH-MDF12C6E5 WH-MDF14C6E5
WH-MDF16C6E5 (WH-MDF12C6E5-1
WH-MDF14C6E5-1 WH-MDF16C6E5-1)
(Refrigerant System)................................. 114
19.2 WH-MDF12C6E5 WH-MDF14C6E5
WH-MDF16C6E5 (WH-MDF12C6E5-1
WH-MDF14C6E5-1 WH-MDF16C6E5-1)
(Water System) ......................................... 119