4
Alarm – cancel, acknowledge
The display
shows
x 2
1.
3.
4.
5.
Confirm with OK. Class A alarm is always
triggered by the system, when the reason
for alarm is hazardous, and it is only pos-
sible to restart the unit, when the reason
for the alarm has been solved. The Class A
alarm can be triggered by the temperature
sensor inside the water heating coil if the
temperature falls below the set point value,
or the class A alarm can be triggered by the
fire thermostats when the temperature rises
above the set point values, indicating risk of
fire.
6.
7.
Press the alarm button twice to see
the alarms logged in the alarm list
Select – Cancel.
Never select Block, Block is only for test
purposes during maintenance work.
To return to the start menu at once
– press and
several times
Confirm selected value with OK. The system
will automatically return to the start menu
after some minutes.
When the reason for the alarm has been
solved, pressing the OK button will activate
the menu - Confirm - and the unit starts.
The alarm indication disappears from the
display.
2.
Example:
Low frost guard temp
Date, time, Class:A
Cancel
Example:
Low frost guard temp
Acknowledge
Block
Cancel
Example:
Low frost guard temp
Date, time, Class:A
Follow the steps
below
