BA_PH_BSB-400-900_EN_44-21.docx
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6.7
Connecting the Extraction Unit
•
The machine must be connected to an effective extrac-
tion system on-site.
•
You will find the diameter of the suction nozzles (
A
) of
your machine in the technical specifications (
5.2).
•
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 12: Suction nozzles
On most models, 2 signal generator lines can be connected to the terminals of the contactor for automatic
switching of the extraction system:
Model
Contactor Terminal
Model
Contactor Terminal
BSB 400
unavailable
BSB 700
163 + 164 of contactor K1
BSB 500*
1 + 2 of rotary cam switch S2
BSB 800
163 + 164 of contactor K1
BSB 600
1 + 2 of rotary cam switch S2
BSB 900
163 + 164 of contactor K1
*) only available with optional 2.2 kW motor
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.
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
•
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.
