21
7 - START-UP
Check that the gaskets are fitted, so as to avoid any by-pass
of air.
! Handle with care, as the filtering material is made from paper
and rather delicate fibreglass.
Check the operation of the dampers to avoid starting the fan
with the dampers closed. If closed, structural damage may
occur on machines fitted with high pressure fans.
Check that the pre-filters have been correctly installed, are
these are cell- or bag-type.
The pre-filters must be fitted in the unit the first time it is
started.
Check that the gaskets are fitted, to avoid any by-pass of air.
Electrically connect the gear motor, checking the direction of
rotation.
Check that the gearing chain is well aligned and suitably
greased.
Fit the layer of filtering material, checking that the alignment is
square so as to ensure correct rewinding.
The manufacturer has enclosed a complete series of
documents inside the filter electrical panel, including wiring
diagrams, instructions for connections to the equipment, etc.
Caution: the bag filters, absolute or activated carbon, are fitted
to the unit after half an hour of system operation. This
operating period cleans the ducting from dust, scoria and
other debris resulting from the assembly operations; this will
avoid blocking, depleting or damaging the non-regenerable
filters.
Check that the bags are not blocked and that there are no
obstacles to the passage of air.
The bags deteriorate quite readily at the attachment to the
frame, due to the continuous sagging and the weight of the
dust.
The filter support wall should be checked for deformations
that may have occurred when positioning the unit; any cracks
must be sealed so as not to allow the by-pass of air.
! Warning: the cells are very delicate, if the filtering material is
broken it must be replaced.
DAMPERS
CELL FILTERS
ROTARY FILTERS
ABSOLUTE FILTERS
RIGID BAG FILTERS
NON-RIGID BAG FILTERS
