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TABLE OF CONTENTS
1.Safety Precautions ............................................. 4
2.Precaution For Using R32 Refrigerant ............. 7
3.Specifications ................................................... 12
3.1WH-ADC0912K6E5AN WH-UXZ09KE5 ..... 12
3.2WH-ADC0912K6E5AN WH-UXZ12KE5 ..... 16
4.Features ............................................................. 20
5.Location of Controls and Components .......... 21
5.1Indoor Unit ................................................... 21
5.2Outdoor Unit ................................................. 53
6.Dimensions ....................................................... 54
6.1Indoor Unit ................................................... 54
6.2Outdoor Unit ................................................. 55
7.Refrigeration and Water Cycle Diagram ........ 56
8.Block Diagram .................................................. 57
9.Wiring Connection Diagram ............................ 58
9.1Indoor Unit ................................................... 58
9.2Outdoor Unit ................................................. 59
10.Electronic Circuit Diagram .............................. 60
10.1Indoor Unit ................................................... 60
10.2Outdoor Unit ................................................. 61
11.Printed Circuit Board ....................................... 62
11.1Indoor Unit ................................................... 62
11.2Outdoor Unit ................................................. 64
12.Installation Instruction ..................................... 66
12.1Indoor Floor Area Requirement ................... 66
12.2Indoor Unit ................................................... 69
12.3Outdoor Unit ................................................. 79
12.4Appendix ...................................................... 84
12.5Service and Maintenance ..........................111
13.Installation and Servicing Heat Pump using
R32 ...................................................................113
13.1About R32 Refrigerant ...............................113
13.2Characteristics of R32 Refrigerant .............113
13.3Refrigerant piping installation • Tools used in
services ......................................................115
13.4New installation, Relocation, Repairing of
Refrigerant Cycle System The Procedures .....
..................................................................119
13.5Piping installation of R32 ...........................120
13.6Installation and Service ..............................121
13.7Repairing of refrigerant cycle / Brazing point ...
..................................................................124
14.Operation and Control ...................................130
14.1Basic Function ...........................................130
14.2Water Pump ...............................................141
14.3Water Pressure Control .............................144
14.4Indoor Unit Safety ......................................145
14.5Auto Restart Control ..................................145
14.6Indication Panel .........................................145
14.7Indoor Back-Up Heater Control .................146
14.8Tank Heater Control .................................. 148
14.9Base Pan Heater Control (Optional) ......... 149
14.10Force Heater Mode ................................... 149
14.11Powerful Operation ................................... 151
14.12Quiet Operation ......................................... 151
14.13Sterilization Mode ..................................... 152
14.14Outdoor Ambient Thermo OFF Control .... 153
14.15Alternative Outdoor Ambient Sensor Control ..
................................................................. 153
14.16Force DHW mode ..................................... 153
14.17SMART DHW mode .................................. 154
14.18DHW Capacity Setting .............................. 154
14.19Anti Freeze Control ................................... 155
14.20Solar Operation (Optional) ........................ 156
14.21Boiler Bivalent Control .............................. 157
14.22External Room Thermostat Control (Optional)
................................................................. 159
14.23Three Ways Valve Control ........................ 160
14.24Two Ways Valve Control........................... 161
14.25External OFF/ON Control ......................... 161
14.26External Compressor Switch (Optional PCB) ..
................................................................. 162
14.27Heat/Cool Switch (Optional PCB) ............. 163
14.28SG Ready Control (Optional PCB) ........... 164
14.29Demand Control (Optional PCB) .............. 166
14.30Holiday Mode ............................................ 166
14.31Dry Concrete ............................................. 167
14.32Flow Sensor .............................................. 167
15.Protection Control ......................................... 168
15.1Protection Control for All Operations ........ 168
15.2Protection Control for Heating Operation.........
................................................................. 170
15.3Protection Control for Cooling Operation .........
................................................................. 171
16.Servicing Guide ............................................. 172
16.1How to take out Front Plate ...................... 172
16.2Test Run ................................................... 172
16.3Expansion Vessel Pre Pressure Checking ......
................................................................. 172
16.4Pump Down Procedures ........................... 173
16.5How To Adjust Pump Speed ..................... 174
16.6How To Unlock Cool Mode ....................... 175
16.7EEPROM Factory Default Data Setup
Procedure ................................................. 176
16.8Dry Concrete Setup .................................. 177
17.Maintenance Guide........................................ 179
17.1Maintenance for Magnetic Water Filter Set .....
................................................................. 182
18.Troubleshooting Guide ................................. 184
18.1Refrigeration Cycle System ...................... 184
18.2Relationship between the Condition of the Air-
to-Water Heatpump Indoor and Outdoor Units
and Pressure and Electric Current ............ 185
18.3Breakdown Self Diagnosis Function ......... 186
18.4Error Codes Table ..................................... 188
18.5Self-diagnosis Method .............................. 190