2
TABLE OF CONTENTS
PAGE
PAGE
1.
Safety Precautions ............................................. 4
2.
Precaution for Using R32 Refrigerant .............. 6
3.
Specifications ................................................... 10
3.1
WH-MXC09J3E5 .......................................... 10
3.2
WH-MXC12J6E5 .......................................... 13
4.
Features ............................................................. 16
5.
Location of Controls and Components .......... 17
5.1
Indoor Unit ................................................... 17
6.
Dimensions ....................................................... 35
6.1
Mono Bloc Unit ............................................. 35
7.
Refrigeration and Water Cycle Diagram ........ 36
7.1
Standard System
(Optional PCB not connected) ..................... 37
7.2
Advance System
(Optional PCB connected) ........................... 37
8.
Block Diagram .................................................. 38
9.
Wiring Connection Diagram ............................ 39
9.1
Water System .............................................. 39
9.2
Refrigerant System ...................................... 41
10.
Electronic Circuit Diagram .............................. 42
10.1
Water System .............................................. 42
10.2
Refrigerant System ...................................... 44
11.
Printed Circuit Board ....................................... 45
11.1
Water System .............................................. 45
11.2
Refrigerant System ...................................... 47
12.
Installation Instruction ..................................... 49
12.1
Mono Bloc Unit ............................................. 49
12.2
Variation of system ...................................... 63
12.3
How to Fix External Device .......................... 70
12.4
System Installation ....................................... 73
12.5
Service and maintenance ............................ 84
13.
Installation and Servicing Air Conditioner
using R32 .......................................................... 85
13.1
About R32 Refrigerant ................................. 85
13.2
Characteristics of R32 Refrigerant ............... 85
13.3
Refrigerant piping installation • Tools used
in services .................................................... 87
13.4
New installation, Relocation,
Repairing of Refrigerant Cycle System
The Procedures ........................................... 91
13.5
Piping installation of R32 ............................. 92
13.6
Installation, Relocation, and Service ............ 93
13.7
Repairing of refrigerant cycle /
Brazing point ................................................ 97
13.8
<Reference> Analysis method for no error
code, no cooling / no warming ...................103
14.
Operation and Control ...................................105
14.1
Basic Function ...........................................105
14.2
Water Pump .............................................. 117
14.3
Indoor Unit Safety ..................................... 120
14.4
Auto Restart Control ................................. 120
14.5
Indication Panel ........................................ 120
14.6
Indoor Back-Up Heater Control ................ 121
14.7
Tank Heater Control .................................. 122
14.8
Base Pan Heater Control (Optional) ......... 124
14.9
Heater Turn ON/OFF priority Control ........ 125
14.10
Force Heater Mode ................................... 125
14.11
Powerful Operation ................................... 127
14.12
Quiet Operation ......................................... 127
14.13
Sterilization Mode ..................................... 128
14.14
Outdoor Ambient Thermo OFF Control .... 128
14.15
Alternative Outdoor Ambient Sensor
Control ...................................................... 129
14.16
Force DHW mode ..................................... 129
14.17
SMART DHW mode .................................. 130
14.18
DHW Capacity Setting .............................. 130
14.19
Anti Freeze Control ................................... 131
14.20
Solar Operation (Optional) ........................ 132
14.21
Boiler Bivalent Control .............................. 133
14.22
External Room Thermostat Control
(Optional) .................................................. 135
14.23
Three Ways Valve Control ........................ 136
14.24
Two Ways Valve Control........................... 137
14.25
External OFF/ON Control ......................... 137
14.26
External Compressor Switch
(Optional PCB) .......................................... 138
14.27
Heat/Cool Switch (Optional PCB) ............. 139
14.28
SG Ready Control (Optional PCB) ........... 140
14.29
Demand Control (Optional PCB) .............. 141
14.30
Holiday Mode ............................................ 142
14.31
Dry Concrete ............................................. 142
14.32
Flow Sensor .............................................. 142
15.
Protection Control ......................................... 143
15.1
Protection Control for All Operations ........ 143
15.2
Protection Control for Heating
Operation .................................................. 145
15.3
Protection Control for Cooling
Operation .................................................. 147
16.
Servicing Mode .............................................. 148
16.1
Expansion Vessel Pre Pressure
Checking ................................................... 148
16.2
Maintenance ............................................. 148
16.3
Pump Down Procedures ........................... 149
16.4
How To Adjust Pump Speed ..................... 150
16.5
How To Adjust Pump Speed ..................... 151
16.6
How To Unlock Cool Mode ....................... 152
16.7
EEPROM Factory Default Data Setup
Procedure ................................................. 153
16.8
Dry Concrete Setup .................................. 154
17.
Maintenance Guide........................................ 156
17.1
Maintenance Menu ................................... 158
18.
Troubleshooting Guide ................................. 160
18.1
Refrigeration Cycle System ...................... 160
Summary of Contents for WH-MXC09J3E5
Page 38: ...38 8 Block Diagram ...