9.2 Venting the system ............................................................................................... 33
9.3 Venting of hot water tank ...................................................................................... 33
9.4 Draining / emptying the system............................................................................. 34
9.5 Emptying the heating circuit.................................................................................. 34
10
Adjusting the system
.................................................................................. 35
10.1 Adjustment of shunt groups .................................................................................. 35
10.2 Adjustment of floor loops....................................................................................... 35
10.3 Adjustment of radiators......................................................................................... 35
11
Settings during installation
....................................................................... 36
11.1 Basic Settings....................................................................................................... 36
11.2 Choice of regulation.............................................................................................. 37
11.3 Blocking of interfering resonances. ....................................................................... 40
11.4 Maximum frequency of the compressor ................................................................ 40
11.5 Legionella elimination ........................................................................................... 41
11.6 Operation with heat elements only........................................................................ 41
11.7 Operation with fan off............................................................................................ 41
11.8 Start-up and installation control............................................................................. 41
11.9 Adjustable HW overheating limit ........................................................................... 41
11.10 Double Heat Curves.............................................................................................. 42
11.11 External mixing valve control................................................................................. 44
11.12 Synchronization with solar panels......................................................................... 44
12
Troubleshooting
........................................................................................... 45
12.1 No heat to the elements (circulation water) although the compressor is running... 45
12.2 The heat pump heats up the HW tank and then stops........................................... 45
12.3 Overheated auxiliary heater –smell of burnt rubber.............................................. 45
12.4 Poor hot water capacity......................................................................................... 45
12.5 The heat pump completely shuts down and does not start.................................... 46
12.6 Overheating protection cannot be restored. .......................................................... 46
13 Alarms................................................................................................................47
13.1 Filter Change Alarm.............................................................................................. 47
13.2 High Gas Pressure Alarm ..................................................................................... 47
13.3 Low pressure alarm 1............................................................................................ 47
13.4 Low pressure alarm 2............................................................................................ 47
13.5 Inverter alarm (0) .................................................................................................. 48
13.6 Heater overheat alarm .......................................................................................... 48
13.7 Hot water overheat alarm...................................................................................... 49
13.8 Sensor fault TE0-TE2............................................................................................ 49
13.9 Defrost alarm........................................................................................................ 50
13.10 Unknown HP box alarm ........................................................................................ 50
13.11 Heating overheat alarm......................................................................................... 50
13.12 Heating limitation alarm......................................................................................... 50
13.13 Heating return max alarm...................................................................................... 50
13.14 SD memory card error........................................................................................... 51
13.15 Inverter connection failure..................................................................................... 51
13.16 Pressure ratio alarm.............................................................................................. 51
13.17 Hot gas temperature alarm ................................................................................... 51
13.18 Alarm - Multiple alarms simultaneously................................................................. 51
13.19 EEV min pos time out alarm.................................................................................. 52
13.20 EEV Max pos timeout alarm.................................................................................. 52
13.21 Clock not set alarm............................................................................................... 52
13.22 Condenser temperature alarm .............................................................................. 52
13.23 Room under heat alarm ........................................................................................ 52
13.24 Room overheat alarm............................................................................................ 52
13.25 Defrost error alarm................................................................................................ 53
13.26 Heating minimum alarm........................................................................................ 53
13.27 Heating freez.danger alarm................................................................................... 53
13.28 Invalid controller type/version................................................................................ 53
13.29 PL1 input alarm..................................................................................................... 53
13.30 Sensor mismatch error TE1-TE2, TE2-TE5, TE1-TE5.......................................... 53
13.31 No compressor function error................................................................................ 53
14 Pump
Diagram
................................................................................................ 54
15 Fan Chart........................................................................................................... 55
