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5. Breakdown assistance
Malfunction Cause
Solution
Extraction power missing Pipe system leaking
Reseal the pipe system
Filter is dirty
Change the filter
Vacuum is too low
Increase the extraction power
(mode 1 only)
WFE 20D is not running Thermally switched off
Leave the WFE 20D to cool
down
Switch on again after approx.
3 hours.
Filter display is red
Filter is full
Change the filter
Unit is not running
Minimum pressure hose Reconnect the hose to the
was not replaced after
filter.
the filter change
Sub-micron particle
Pre-filter has not been
Use a pre-filter
becoming dirty to quickly used
Fit an F7 filter
Use a preliminary separator if
the proportion of solid matter
is high.
6. Maintenance, working information
Various fluxes, flux components as well as different dust particles in the extracted air
can significantly reduce the filter’s working life.
The sub-micron particles in the air increase when soldering or welding on varnished
insulated wire. The standardised F5 filter mat should be exchanged for a class F7 fine
dust filter for these or similar applications.
A compact filter with a greater quantity of active carbon (without particulate air filter
stage) should be used when extracting adhesive vapour.
Filter changes
The mains plug must always be pulled out of the mains socket before any
maintenance work is undertaken. To change the filter you must first open the locking
clamps (5) between the turbine housing (2) and the filter housing (1) and then lift off
the filter housing. Pull the vacuum hose off of the compact filter. The compact filter
(7) and the fine dust filter (8) can be removed using the carrying straps. The fine dust
filter is laid inside the compact filter (see exploded drawing).
Attention! The minimum pressure hose must be reconnected correctly and the
holding latches must be turned downwards when replacing the filter.
Dirty filter are classified as hazardous waste.
7. Replacement parts
See Exploded Page 54 for replacement parts for standard installations
Fine dust filter F7
Wide-band gas filter (50% AKF, 50% Puratex) without an H13 particulate air filter
8. Accessories
0058735909 Remote control
Pipe system DN40 (Page 55)
9. Shipment
1 WFE 20D including filter set
1 connecting cable
1 Operating manual
10. Appendix
Accessories for DN40 pipe system
PK Elektronik Vertriebs GmbH, Ellmendinger Str. 23, 76227 Karlsruhe
Tel.: 0721-43337, Fax: 0721-491292, [email protected], www.pkelektronik.com