P11 Water Heat Exchanger Unit Anti-icing Sensor Error(for only water heat exchanger unit).......................................................... IV–88P12 Indoor DC Fan Error (DC fan motor model only) .................................................... IV–89P13 Refrigerant circuit Error (W MULTI). ....................................................................... IV–90P13 Refrigerant Circuit Error (3WAY) ............................................................................ IV–91P15 Complete Refrigerant Gas Depletion...................................................................... IV–93P18 Bypass Valve Error ................................................................................................. IV–94P19 Four-way Valve Lock Error (not detected 3WAY MULTI) ........................................ IV–95P20 Refrigerant High-Pressure Error............................................................................. IV–96P22 Outdoor Unit Fan Error .......................................................................................... IV–101P23 Water Heat Exchanger Unit Interlock Error (for only water heat exchanger unit) ..IV–102P26 Clutch Connection Error ........................................................................................IV–103P30 Group Control’s Sub Unit Error (* warning displayed only on system controller) ...IV–104P31 Group Control Error (*) ..........................................................................................IV–105oiL Oil Change Time Alarm .........................................................................................IV–1065. Reference Document ................................................................................................ V–1(1) Outdoor Main Board Replacement Sequence andRemote Controller Service Function.................... V–1(2) Switch and LED ................................................................................................ V–3(3) Display Component Specifi cations ................................................................ V–5(4) Operation Unit Specifications ......................................................................... V–6(5) Normal Display (Level 0) .................................................................................. V–7(6) Menu Display .................................................................................................... V–9(8) Ignition Timing Check and Adjustment ........................................................V–43(9) Thermistor characteristic graph ................................................................... V–51(10) Checks Prior to Automatic Addressing ........................................................ V–53(11) Indoor/outdoor control wire connection confirmation ............................... V–546. Outdoor Unit Electrical Wiring Diagram ................................................................ VI–1(1) Outdoor main board ........................................................................................ VI–2(2) Outdoor power board ......................................................................................VI–3(3) Converter board...............................................................................................VI–4(4) Indoor control board for DC motor models ..................................................VI–5(5) Outdoor Unit Electrical Wiring Diagram........................................................VI–6(*) Cannot be detected when the water heat exchanger unit is connected.
