Faults are signaled on the basic screen in the status field and by the LED status luminaire (spotlight) on the bottom of the unit. In addition, an acoustic alarm (horn) informs the operator in the event of a fault. By tapping on the status field (info symbol ), the information system opens. The information system displays general device information as well as information about faults and warnings that occur.

Alert levels

A distinction is made between the following alarm levels, which trigger corresponding reactions. For an overview of the faults, click here...

Alert level0305101320303335
Status field/Spotlightyellowyellowyellowyellowredredredred
heating-Off--OffOff ¹OffOff
Pump-----OffOffOff
cooling-----OffOffOff
horn--activeactiveactiveactiveactiveactive
alarm contact--activeactiveactiveactiveactiveactive
Alarm on interface--activeactiveactiveactiveactiveactive
Alarm acknowledgementmanualautomaticallyautomaticallymanualmanualmanualmanualmanual
Alarm output delayYesNoYesNoYesYesNoYes

¹ Once the alarm is detected, the heating is switched off immediately. The edition of the alarm and further reactions are delayed.

In case of alarm level faults 03–35:

  • Horn, alarm contact (additional equipment ZB) are activated and the fault is transmitted to the interface (additional ZD, ZC, ZPequipment).
  • Horn by tapping the Mute button .
  • Detect the cause of the fault. To determine the cause of the fault, click here... .
  • Acknowledge the fault by tapping on the buttoncross mark or by swiping to the left (Fig.). The fault is no longer present in the view.