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