BA_PH_3V_EN_07-22.docx
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8.6
Connecting the Extraction Unit
•
The machine must be connected to an effective ex-
traction system on-site.
•
Each of the four suction nozzles (
A
) has a diameter
of 100 mm.
•
All parts of the extraction system, including hoses,
must be included in the earthing measure.
When flexible suction hoses are used, they
must be flame-retardant.
When the machine is switched on, the ex-
traction system must start automatically.
Figure 10: Extraction ports
2 signal generator lines for automatic switching of the extraction system can be connected to the terminals
43
and
44
of the contactor
K1M
.
Installation only by a qualified electrician!
The air speed must be set in such a way that, with the extraction line connected and the tools stationary, an
average air speed of
-
20 m/s (1450 m³/h) for dry chips,
-
28 m/s (2050 m³/h) with moist chips (moisture 18 % or more)
is achieved at the extraction nozzles.
The required air volume for extraction is 1000 m
3
/h.
The pressure drop at each extraction point should not exceed 1500 Pa. Otherwise, this could
mean that the machine is not compatible with the extraction system.
If the machine is properly connected to the extraction system, it can be assumed that the wood dust assess-
ment value will be complied with (permanently and safely).
At certain intervals (or depending on the frequency of use) it is necessary to clean the inside of the machine from
sawdust. When operating in closed rooms, an external chip and dust extraction system must be connected.
A
Ø = 100 mm
•
The air velocity must be checked before initial commissioning and after significant changes.
•
The extraction system must be checked daily for obvious defects after initial commissioning
and monthly for effectiveness.
