Instruction manual for use and maintenance - EN
Rev.: 0
–
aggiornato al 06/11/2020
| Con riserva di modifiche tecniche e salvo errori |
Pag.
18
di
39
7.2.
Ordinary maintenance
To ensure a safe operation of the unit, it is advisable to carry out a maintenance activity and overall
check at least once every 3 months.
The unit does not require any specific maintenance, except for the replacement of the filters if necessary
and the inspection of the extraction hose and torch cable.
Follow the warnings given in paragraph 2.5 "Safety warnings for maintenance and troubleshooting".
7.3.
Replacement of filters
The lifetime of the filters depends on the kind and quantity of particles extracted.
To optimize the life of the main filter and to protect it from coarser particles, the unit is provided with a
spark arrestor trap.
A differential filter pressure gauge checks the cartridge filter continuously which is cleaned automatically
by a counter current air shot.
The active carbon postfilter captures VOC volatile substances and provides for deodorization.
It is advisable to replace the cartridge filter, when it exhausted. The more is clogged the cartridge the
narrower is the air flow, with a reduction of the extraction capacity.
The unit is equipped in all versions with an audible and visual alarm that indicates the need
to carry out maintenance of the filters.
It is forbidden to clean fabric filters (all kinds): corrugated, pocket and cartridge filters.
Cleaning would cause damage to the filter stuff, compromising the function of the filter and
leading to escape of hazardous substances into the ambient air.
In case of a cartridge filter, pay particular attention to the filter seal; only if the seal is free
from damages or imperfections it is possible to guarantee a high level of filtration.
Filters with damaged seals shall always be replaced.
Skin contact with dust and other substances lying on the unit can cause irritation to sensitive
persons!
Danger of serious damage to the respiratory system!
To avoid contact and inhalation of dust, it is recommended to use protective clothing, gloves
and a mask with a FFP2 class filter according to EN 149 standard.
During cleaning, prevent dangerous dust from being diffused in order to avoid damage to
the health of other persons.
To this purpose, carefully insert the dirty filters inside bags with sealing and use an industrial
vacuum cleaner for dust with efficiency class "H" to suck up any dust dropped during the
filter extraction phase.
INFO
WARNING
WARNING
