7.1. Fire alarm
Fire alarm can be managed in the following ways:
in case of alarm completely stop the unit.
in case of alarm open the external dampers and force max fan speed (on both fans)
Available only if
exhaust fan.
7.2. Stopping alarms
This kind of alarms forces the unit in stand-by mode.
These alarms are: Expansion communication error, fan thermal protection, regulation sensor fault and supply sensor
fault.
7.3. Alarm list
To visualize the alarms press Set and pressing the arrows select the
Pressing the arrows it is possible the visualize more than one alarm
To reset manual alarms, keep pressed Set button while visualizing the alarm code.
Alarm code
Description
Supply Air Probe Error
Fresh Air Probe Error
Remote Display Probe Error
Filter Alarm
Post-Heater Overheating Alarm
Return Air Pressure Probe Error
Supply Air Pressure Probe Error
CO
Probe Error
2
Defrost/Exhaust Air Probe Error
Return Fan Thermal Protection Alarm
Supply Fan Thermal Protection Alarm
Antifreeze Probe Error
Pre-Heater Overheating Alarm
Expansion Communication Alarm
Antifreeze Alarm
Fire Alarm
Low Water Temperature Alarm
Clock time alarm (broken or not
powered for three days)
Remote Display Probe AIR2 Error
firmware 1.03
Electronic Control "LC2" User Manual
7 Alarms
= yes: in case of alarm open the external damper and force max fan speed only for the
Solution
Check / Replace the sensor
Check / Replace the sensor
Check the connection / Replace remote Display
Clean or replace the filters
Check the unit air flow rate / Contact the service centre
Check the connection / Replace the sensor
Check the connection / Replace the sensor
Check the connection / Replace the sensor
Check / Replace the sensor
Check the unit air flow rate / Contact the service centre
Check the unit air flow rate / Contact the service centre
Check / Replace the sensor
Check the unit air flow rate / Contact the service centre
Check the connection / Contact the service centre
Check the hot water temperature and the pump
-
Check the hot water temperature and the pump
Set the clock
Check / Replace the sensor
Rev.11
menu.
EN
Reset
Auto
Auto
Auto
Auto
Manual
Auto
Auto
Auto
Auto
Manual
Manual
Auto
Manual
Auto
Auto
Manual
Auto
Manual or setting
the clock
Auto
EN 12/ 15