60 3064298_201805
Operatingmode/HPstatus
26 Operatingmode/HPstatus
26.1 Operatingmode
No. Display Meaning
0 ODU test ODU test
1 Test Relay test active (IDU)
2 Frost prot htg Heat pump frost protection function, heating circuit temperature below frost protection limit
(T_boiler, T_return, T_header)
3 Frost prot DHW Heat pump frost protection function, DHW cylinder temperature below frost protection limit
4 DFL low Blocking of heat pump/electric heating until the flow rate is back within valid limits
5 - -
6 Defrost mode ODU defrost function
7 Pasteurisation Heating of DHW cylinder to 65 °C
8 DHW heating DHW heating with cylinder; cylinder sensor temperature below set value
9 DHW run-on Heat generator switched OFF; ZHP runs on
10 Heating mode At least one heating circuit is demanding heat
11 HTG run-on Heat generator switched OFF; ZHP runs on
12 Active cooling Cooling mode active
13 Cascade Cascade module in system active
14 BMS Heat pump is controlled by building management system
15 Standby No heating or DHW demand
16 Pump down Refrigerant circuit drain function
26.2 HPstatus
No. Display Meaning
0 Fault There is a fault in the heat pump/electric heater
1/2 Deactivated Heat pump/electric heater/additional heat generator was deactivated via contractor parameter
3 Standby No demand
4 Pre-flush Sensors are brought to same temperature level without heat generator.
Flow sensor is exposed to flow.
5 Operation Heat pump in control mode
6 Defrost mode Heat pump in defrost mode
7 Post-flush Feed/heating circuit pump (ZHP) runs on without heat generator
8/9 Blocking time A blocking time is present for the heat pump
10 Power-OFF The heat pump is blocked by the power supply utility/via power supply utility contact
11 OT shutdown Heat generator in shutdown due to outside temperature
12 FL/RTN > max. Heat generator in shutdown as maximum flow/return temperature exceeded
(application limit reached)
13 Active cooling Heat pump in cooling mode
14 Spply air<min Supply air temperature is below the minimum level
15/17 DPM / MaxTh Dew point monitor or maximum thermostat triggered
16 - -