Maico PP 45 O Installations- Und Inbetriebnahmeanleitung Seite 39

Risk of explosion: Explosive gases and
dusts may ignite and cause serious ex-
plosions or fire.  Never use ventilation unit
in an explosive atmosphere.
Risk of explosion: Explosive substanc-
es in lab extraction units may ignite and
cause serious explosions or fire. Aggressive
substances may damage the ventilation unit.
 Never use ventilation unit in combination
with a lab extraction unit.
Risk to health from chemicals or
aggressive gases/vapours.
Chemicals or aggressive gases/vapours may
harm health, especially if they are distributed
throughout the rooms by the ventilation unit.
 Never use ventilation unit to convey chemi-
cals or aggressive gases/vapours.
During the build phase, damage to
unit caused by contamination of the
ventilation unit.
 Ventilation unit operation is not permitted
during the build phase.
Grease and oil vapours from range
hoods may contaminate the ventila-
tion unit and reduce efficiency.
 The ventilation unit should not be used with
range hoods in exhaust air mode. Recom-
mendation: In terms of energy consumption,
use range hoods in circulating air mode.
Electric shock from water ingress
if used in protection zones. Units/
controls not suited for outdoor use.
 Protect ventilation units/controls from mois-
ture and wetness.
 Use RLS/DS controls only outside protec-
tions zones 0, 1 and 2.
 Use PP 45 ventilation units only outside
protections zones 0, 1 and 2.
 Use PPB 30 O/K ventilation units only
outside of protection zone 0.
 Use PPB 30 RC ventilation units only out-
side of protection zones 0 and 1.
3 Safety instructions and warnings | UK
Read and observe the safety in-
structions. Ask your specialist install-
er to instruct you in how to use the
ventilation units/operating units.
Risks for people (including children)
with reduced physical, sensory or
mental capabilities or a lack of knowl-
edge.  Only have ventilation unit installed,
commissioned, cleaned and maintained by
persons who can safely recognise and avoid
the risks associated with this work .
Risk to health if filters are not re-
placed or if there are no air filters.
Heavily contaminated or damp air filters
may collect substances hazardous to
health (mould, germs etc.). This may also
happen if the ventilation unit is not used for
an extended period. If there are no air filters,
the ventilation unit becomes dirty. Unfiltered
substances may enter the rooms.
 Never operate ventilation unit without air
filters.
 Only use original filters.
 Recommendation: continuous operation.
 Observe filter change display. Clean air
filter every 2 to 3 months (e.g. with a vacuum
cleaner) and replace after 8 months at the
latest.
 If the ventilation unit has not been used for
a long time, always replace the air filters.
Risk to health if ventilation unit is not
correctly cleaned.
 Clean the ventilation unit regularly, at
least every 2 years. This is the only way of
ensuring that the ventilation unit is running
hygienically.
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