EvoControl Ventilation - Counterflow

If the alarm is active or unacknowledged, the alarm symbol appears at the top of the display and the alarm is added to the alarm list.

A-alarm 

• The unit stops *1.
• Manual acknowledgement of alarms is required, and faults must be cleared before restart *2.

*1 If Standby, parameter 480 is activated (setting = Yes, see parameter list), the extract air fan and heat exchanger continue to run provided that the extract air fan has not alarmed.

*2 To exit Standby mode, the fault must be cleared and acknowledged, then the unit must be Stopped before restarting.

B-alarm 

• The unit continues to run.
• Manual acknowledgement of alarms

C-alarm 

• The unit continues to run.
• Automatic acknowledgement when alarm returns to normal or manual acknowledgement of alarm.