DEHACO DEH, Руководство пользователя, Страница: 12 / 16

12 Dehaco B.V. • Kruisbaak 25 • 2165 AJ Lisserbroek (NL) •
✆
+31 (0)88 - 20 20 600 •

info@dehaco.nl • www.dehaco.nl
6. Commissioning
6. COMMISSIONING
6.1 Placing and installing the machine
First check that the switch is in the “off” position. If
the negative pressure unit was stopped the last time
by removing the cable, the machine immediately
starts when the plug is inserted.
The machine must be placed outside the
contaminated zone. Under no circumstances
is it permitted to place the machine within the
zone. In case of doubt, first consult the person
who is responsible for the technical aspects of
the machine. The machine should be fixed to the
zone air tight, using suitable tape. This connection
should be perfect, as the zone is brought under
negative pressure, creating a lot of force on these
connections.
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The exhaust side of the machine generates
a lot of noise. This can be reduced by using
a discharge hose. In the direct vicinity in the
clean zone, hearing protection
must be used.
1) Check that the machine is placed correctly.
2) Check that the clean air discharge hose is properly
connected and does not cause obstruction.
3) Visually check the enclosed zone for leakage.
4) Check that the on/off switch is in the off position.
5) Connect the power cable to the machine.
6) Start the machine with a low RPM using the on/off
switch.
7) Check that the machine is actually working.
BEWARE!
8) Enter the zone with full personal protective
equipment and cut a hole in the plastic at the same
height as the machine. This hole should be smaller
than the filter.
9) Remove the transit plate.
10) Remove any remaining glue residues on the inside
of the filter opening.
11) Apply the foil air tight to the inside of the machine's
filter opening using duct tape.
12) Check that the pre-filter is mounted correctly.
13) Use the rotary knob to set the required negative
pressure in conformity with the standard
prescribed by the authorities.
If the imposed negative pressure cannot be achieved:
first check the structure of the zone and the lock. Also
check that the required volume of air is removed from
the zone. You can increase the number of negative
pressure unitsuntil the correct negative pressure is
achieved and maintained. These can be electrically
connected via an automatic start system.
6.2 Use
The negative pressure can be checked during use by
means of a monitor. (Dehaco has various monitors
in its delivery programme). The negative pressure
in the enclosed zone should remain below the value
prescribed by the -local- authorities.
If the negative pressure drops in relation to the start
value, the pre-filter could be contaminated and should
be replaced. (see section 10.b) If, after replacing the
pre-filter, the manometer indicates more than, see
table with technical data, Pascal, the HEPA filter should
be replaced.
WARNING!
The HEPA filter may only be replaced by an authorised
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