NF BP4610, Instruction Manual

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7.5 Cleaning the Air Filters
BP4610 7-5
7.5 Cleaning the Air Filters
Dust and dirt that penetrates in the BP4610 and adheres inside may absorb the water content in
the air and therefore cause rusting of metal parts, as well as cause a degradation in insulation
performance leading to the failure of internal high-voltage parts.
Therefore, air filters (which number 6) are provided to eliminate dust and dirt contained in the
inflowing air at the air intake vent on the front panel.
The dirt adhering to the filters, if not removed, will clog up the filters and reduce the air flow,
causing the temperature inside the BP4610 to rise and lowering its reliability.
In such a case, remove the dirt from the filters by washing them in water, etc., and reinstalling
them after completely drying them.
(1) Hold the top end or the bottom end of the
intake vent on the front panel and pull it
toward you until you hear a click.
(2) The hooks of the intake vent are released
from the locks on the main unit, so holding
the left and right ends of the intake vent,
pull it out in its entirety toward you until it
comes off the main unit.
(3) Remove the air filter from the rear side of
the intake vent, and clean it.
(4) Using the same procedure, also clean the
other air filters.
(5) Once the air filter has dried completely,
reinstall the intake vent by performing steps
(1) to (3) in the reverse order.
Figure 7-2. Air Filter Cleaning Procedure
Filter performance is not failproof as filter reliability can be degraded by extremely fine dirt (fine
powder) and clogging. Therefore, installation of the BP4610 in a location filled with dust or dirt
(including fine powder) or a location with high humidity where condensation can easily occur,
should be avoided as much as possible.