NF BP4620, Инструкция по эксплуатации

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7.5 Cleaning the Air Filters
BP4620
7-6
7.5 Cleaning the Air Filters
Dust and dirt that penetrates in the BP4620 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 12) 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 BP4620 to rise and lowering its reliability.
In such cases, remove the filter and clean out accumulated dust, as shown below. When rinsing
with water, be sure to dry the filter thoroughly before reattaching it.
(1) Press the middle of the left side of the air inlet
piece on the front panel, and pull it forward.
(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 inside of the
air inlet piece, then clean the air filter.
(4) Follow the same procedure to remove and
clean the other air filters.
(5) After cleaning the air filters, make sure
they are completely dry before performing
steps (1) to (3) in reverse order to reattach
them.
Figure 7-2. Air Filter Cleaning Procedure
Filter performance is not fail-proof as filter reliability can be degraded by extremely fine dirt (fine
powder) and clogging. Therefore, installation of the BP4620 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.