4.2.3 Alarm
Follow the steps bellow to cancel and acknowledge alarms.
Press button
Explanation
The display shows
x 2
Press the alarm button twice to see the alarms
logged in the alarm list
Example:
Low frost guard temp
Date, time, Class:A
Press OK
Example:
Low frost guard temp
Acknowledge
Block
Confirm with OK. Class A alarm is always
triggered by the system, when the reason for
alarm is hazardous, and it is only possible to
restart the unit, when the reason for the alarm
has been solved. The Class A alarm can be
triggered by the fire thermostats when the
temperature rises above the set point values,
indicating risk of fire.
Example:
Low frost guard temp
Date, time, Class:A
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.
Confirm selected value with OK. The system
will automatically return to the start menu after
some minutes
To return to the start menu at once – press
LEFT and UP several times
4.2.4 Air control — Pressure control
Follow the steps bellow to change air pressure control values.
Press button
Explanation
The display shows
x 1
The display is lit up
Living HR
Date, time
Syst: Running mode (Auto,
Manual reduced, Man. norm.,
Off)
x 3
Air control
x 1
Pressure control
Pressure control
SAF (SAF = supply air fan)
EAF (EAF = extract air fan)
Living HR
Operation and Maintenance Instructions
209534
10
Systemair AB
