By pressing this key it is possible to choose between 5 time periods� The selected time period is shown
with the corresponding blink signal�
When the required time period has been selected:
EN
⇒ Press the enter key (25)�
♦ The display dust drawer (24) lights up for 2 seconds�
♦ An acoustic signal confirms the input.
With strong dust-generating devices (e.g. sandblasting units) the time period for the "empty dust
drawer" should be adjusted to 2 hrs. or 5 hrs.
6.3
Change Fine Filter
As a fine filter, it contains a two-stage filter system category M. This ensures a high level of health protec-
tion and a long service life for the extraction system�
To ensure this function, please note the following:
► If the suction power is no longer sufficient in spite of a filter cleaning, the fine filter must be
changed.
► In general, the fine filter should be changed every 2 years.
Do not clean the fine filter manually (e.g. with compressed air, brush, water, etc.), as this leads to
damage of the filter material!
When installing the fine filter please ensure that it is positioned correctly, otherwise leakages may result.
See the assembly instruction at the end of the instruction manual, which is also attached to the new fine
filter.
6.4
Safety Mechanism
The extractor is safeguarded by two device overload switches (11, Fig� 1)�
If an overload switch is released, it can be reset by pressing the button back in�
If the protection switch is repeatedly released, this shows the device has a fault. Send the device
to be repaired!
6.5
Spare Parts
You can find components subject to wear and the spare parts on the spare part
list in the internet at www.renfert.com/p918�
Enter the following item number: 29340000
The components excluded from the warranty (such as consumables or parts sub-
ject to wear and tear) are marked on the spare part list�
Serial number and date of manufacturing are shown on the type plate of the unit�
6.6
Factory Settings
⇒ Switch unit off (9, Fig�1)�
⇒ Press the keys operating mode (21, Fig� 2) and suction level (23, Fig� 2) at the same time and switch
the unit on (9, Fig� 1)�
♦ All 4 displays blink thrice�
♦ All values are now re-set to the factory settings�
Factory settings:
Function / Feature
Automatic switch-on for automatic
Operating mode
Suction level
Time period
operation
Setting range
Automatic mode / continuous mode
1 / 2
2 - 100 hrs�
- 12 -
Factory settings
Automatic mode
1
50 hrs�
8 W