Instruction Manual
Negative Pressure Unit green dec
Version 1
Page 52
A necessary filter change is indicated by the message "filter change" and an acoustic signal
sounds. After the change, the warning must be acknowledged by tapping the "OK" button.
If the display shows the value for the recommended filter change, first exchange the pre-
and intermediate filter. If the display value drops by 100 Pascal or more, the device can
continue operating. If the value falls below 100 Pascal, the HEPA filter must be renewed.
8.1.3. Control SRE connect
For filter monitoring, the filter pressure is shown in the display of the controller. If the
display reaches the red area, please replace first or intermediate filter first. If the display
value drops by 100 Pascal or more, the unit can continue to operate. If the value drops
by less than 100 pascals, the HEPA filter must be renewed.
filter pressure