DEHACO B.V.
Kruisbaak 25, 2165 AJ Lisserbroek (NL)
PO box 189, 2160 AD Lisse (NL)
Tel.:+31(0)252 417 950, fax: +31 (0) 252 418 531
Negative pressure units manual DEH 500
– DEH 30000
2014 v1.0en
-page
14
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c)
Starting up
1. Make sure the unit is placed properly.
2. Make sure the exhaust hose for the clean air is properly connected
and causes no nuisance.
3. Check the sealed-off zone visually for leaks.
4.
Make sure the on/off switch is on the position “off”.
5. Connect the power cable to the unit.
6. Start the unit at low speed with the on/off switch.
7. Make sure the unit is actually working.
ATTENTION
After positioning and starting outside the sealed-off zone, the machine has to
be fixed airtight to the zone by means of a suitable tape. This connection has
to be perfect, because the zone will be under vacuum and therefore much
effect arises on these fixations.
8. Enter the zone, with your complete individual personal protective
equipment, and cut a hole in the plastic at the height of the unit. This
hole should be smaller in size than the filter.
9. Remove the transit cover.
10. Remove any glue remains from the
inside of the filter opening.
11. Fix the foil airtight with duct tape to the
inside of the filter opening of the unit.
12. Check whether the pre-filter has been
installed correctly.
13. Set the desired pressure with aid of the
rotary knob and in accordance with the
standard prescribed by the local
authorities.
ATTENTION!
If the required negative pressure is not reached: check the construction of the
zone and the airlock first. Check also whether the required volume of air is
removed from the zone. You can increase the number of negative pressure
units up to the point where you reach the right negative pressure and are
able to sustain it. These units can be connected electrically to an automatic
start-up system.
