8
EN
4.4. SET DISPLAY CONTRAST
>
5
Sec
1
1.
2
1.
3
4
5
6
NOTE
The system automatically switches to the normal display when there is no activity or no input.
5. MALFUNCTIONS • ACTIONS
Malfunction
Problem - Measure
Note - be sure to observe!
AL 1
AL 1
Pressure difference across the filter too low.
(Fan defective or air outlet blocked).
Please check the air outlet.
Please contact your specialist dealeror our service hotline 01805 - 92
20 92
AL 1
AL 2
Pressure difference over the filter too high.
(filter too dirty, air flow rate too low).
Main filter change necessary!
Please contact your specialist dealer or our service hotline 01805 - 92
20 92.
AL 1
AL 3
The filter is almost completely saturated,
a timely change is necessary.
Attention: Possible accident inside the cabinet! Eliminate
leakage professionally and change filter!
Please contact your specialist dealer or our service hotline 01805 - 92
20 92
AL 1
AL 4
The filter is completely saturated and the fan has been
switched off.
It is now imperative to change the filter at short notice.
Main filter and secondary filter change necessary!
Please contact your specialist dealer or our service hotline 01805 - 92
20 92
1
W
The filter is close to its saturation limit,
a timely change is imperative.
Please contact your responsible specialist dealer
or to our service hotline 01805 - 92 20 9
Ser
1
Filter runtime longer than 8040 operating hours (11 months)
The permissible operating time of the filter has almost expired.The filter
must now be changed at short notice.
Please contact your responsible specialist dealer
or to our service hotline 01805 - 92 20 9
Ser
2
Filter runtime longer than 8760 operating hours (12 months)
The permissible operating time of the filter has expired. The filter must
now be changed at short notice.
Please contact your responsible specialist dealer
or to our service hotline 01805 - 92 20 9
Ser
3
Filter sensor runtime longer than 48 months
A sensor replacement should be carried out in the course of the next
safety inspection.
Please contact your responsible specialist dealer
or to our service hotline 01805 - 92 20 9
