Table Of Contents - Panasonic WH-MDC05J3E5 Service Manual

TABLE OF CONTENTS

1. Safety Precautions ............................................. 4
2. Precaution for Using R32 Refrigerant .............. 6
3. Specifications ................................................... 10
3.1 WH-MDC05J3E5 ......................................... 10
3.2 WH-MDC07J3E5 ......................................... 13
3.3 WH-MDC09J3E5 ......................................... 16
4. Features ............................................................. 19
5. Location of Controls and Components .......... 20
5.1 Indoor Unit ................................................... 20
6. Dimensions ....................................................... 38
6.1 Mono Bloc Unit ............................................. 38
7. Refrigeration and Water Cycle Diagram ........ 39
7.1 Standard System
(Optional PCB not connected) ..................... 40
7.2 Advance System
(Optional PCB connected) ........................... 40
8. Block Diagram .................................................. 41
8.1 WH-MDC05J3E5 ......................................... 41
8.2 WH-MDC07J3E5 WH-MDC09J3E5 ............ 42
9. Wiring Connection Diagram ............................ 43
9.1 Water System .............................................. 43
9.2 Refrigerant System ...................................... 44
10. Electronic Circuit Diagram .............................. 46
10.1 Water System .............................................. 46
10.2 Refrigerant System ...................................... 47
11. Printed Circuit Board ....................................... 49
11.1 Water System .............................................. 49
11.2 Refrigerant System ...................................... 51
12. Installation Instruction ..................................... 52
12.1 Mono Bloc Unit ............................................. 52
12.2 Variation of system ...................................... 64
12.3 How to Fix External Device .......................... 71
12.4 System Installation ....................................... 74
12.5 Service and maintenance ............................ 85
13. Installation and Servicing Air Conditioner
using R32 .......................................................... 86
13.1 About R32 Refrigerant ................................. 86
13.2 Characteristics of R32 Refrigerant ............... 86
13.3 Refrigerant piping installation • Tools used
in services .................................................... 88
13.4 New installation, Relocation,
Repairing of Refrigerant Cycle System
The Procedures ........................................... 92
13.5 Piping installation of R32 ............................. 93
13.6 Installation, Relocation, and Service ............ 94
13.7 Repairing of refrigerant cycle /
Brazing point ................................................ 98
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13.8 <Reference> Analysis method for no error
code, no cooling / no warming .................. 104
14. Operation and Control .................................. 106
14.1 Basic Function .......................................... 106
14.2 Water Pump .............................................. 116
14.3 Indoor Unit Safety ..................................... 119
14.4 Auto Restart Control ................................. 119
14.5 Indication Panel ........................................ 119
14.6 Indoor Back-Up Heater Control ................ 120
14.7 Tank Heater Control .................................. 121
14.8 Base Pan Heater Control (Optional) ......... 122
14.9 Force Heater Mode ................................... 123
14.10 Powerful Operation ................................... 124
14.11 Quiet Operation ......................................... 125
14.12 Sterilization Mode ..................................... 125
14.13 Outdoor Ambient Thermo OFF Control .... 126
14.14 Alternative Outdoor Ambient Sensor
Control ...................................................... 126
14.15 Force DHW mode ..................................... 127
14.16 SMART DHW mode .................................. 127
14.17 DHW Capacity Setting .............................. 128
14.18 Anti Freeze Control ................................... 128
14.19 Solar Operation (Optional) ........................ 129
14.20 Boiler Bivalent Control .............................. 131
14.21 External Room Thermostat Control
(Optional) .................................................. 133
14.22 Three Ways Valve Control ........................ 134
14.23 Two Ways Valve Control........................... 134
14.24 External OFF/ON Control ......................... 135
14.25 External Compressor Switch
(Optional PCB) .......................................... 136
14.26 Heat/Cool Switch (Optional PCB) ............. 137
14.27 SG Ready Control (Optional PCB) ........... 137
14.28 Demand Control (Optional PCB) .............. 139
14.29 Holiday Mode ............................................ 139
14.30 Dry Concrete ............................................. 140
14.31 Flow Sensor .............................................. 140
15. Protection Control (WH-MDC05J3E5).......... 141
15.1 Protection Control for All Operations ........ 141
15.2 Protection Control for Heating
Operation .................................................. 143
15.3 Protection Control for Cooling
Operation .................................................. 144
16. Protection Control
(WH-MDC07J3E5 WH-MDC09J3E5) ............ 145
16.1 Protection Control for All Operations ........ 145
16.2 Protection Control for Heating
Operation .................................................. 147
16.3 Protection Control for Cooling
Operation .................................................. 148
17. Servicing Mode .............................................. 149
17.1 Expansion Vessel Pre Pressure
Checking ................................................... 149
17.2 Maintenance ............................................. 149
17.3 Pump Down Procedures ........................... 150
17.4 How To Adjust Pump Speed ..................... 151
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