Felder RL 250, Руководство пользователя

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Dust Extractor
RL 250/RL 300
Fire prevention and extinguisher/Putting the dust extractor into operation/Dedusting the filter
12 Fire prevention and extinguisher
• The dust extractor should be set up as close to the
woodworking machine as possible.
• Set up the dust extractor on an even surface. The steer-
ing wheels lock the device in position.
• Attach the vacuum hose or the pipe to the dirty gas
pipe nozzle.
• Fabricate a compressed air connection, to clean the
filter, with a compressed air hose with a cross-section
measuring 1/2 inch. Set the operating pressure from
5 to 6 bar with the compressed air reducing valve (the
control knob on the compressed air maintenance unit).
The compressed air must be dry and free of oil.
• Connect the water connection with a fixed pipe or a
steel hose line and flood.
• The dust extractor is switched on and off fully auto-
matically (via both the converter coil and the control),
when the woodworking machine is switched on or off.
The control operating switch must be positioned on
“Auto” (see annexed Control operating manual). If the
operating switch is on the “Manual” position, the de-
vice is switched on immediately without the converter
coil signal.
13 Putting the dust extractor into operation
14 Dedusting the filter
Note: If due to technical difficulties (such as for example a power failure), the
solenoid valve does not open, it can be extinguished by opening the spherical
valve via the bypass line. The spherical valve is sealed upon delivery so it is not
activated unintentionally.
Min. extinguishing water supply 12 litres/Min.
Min. extinguishing excess water pressure 1–2 Bar
The fire extinguisher must be connected to the main water
supply 1/2 inch pipe with a pressure of at least 2 bar.
If the temperature measures more than > 70°C at the
measuring point (temperature sensor in the clean gas
area), an extinguishing process is triggered within the set
time delay (max. of 30 seconds). The extinguishing valve
opening time has been pre-set to 70 seconds.
Attention! Risk of flooding / Risk of material damage!
Check the water pressure on the pressure gauge every day!
Disconnect the machine from the mains and from the compressed air supply should you need to trigger the
extinguishing function manually.
The filter is cleaned fully automatically via the control
depending on the running time of the ventilating fan,
and/or how full the filter is. The cleaning process in the
operating pauses also takes place fully automatically.
The pause periods between the cleaning times are prede-
termined and may not be adjusted by the operator.
The cleaning process can also be triggered manually if
required.
If the clear air dust extractors are mainly providing
suction for machines, which produce a lot of dust ( stroke
sanders or wide-belt sanders), we would recommend that
after 30 minutes of continuous use that the extraction
system is turned off for regeneration purposes. The clea-
ning process then begins automatically and only takes
2 minutes. The clean air dust extraction unit is then fully
operational again.