Nilfisk-ALTO 20 - Manual (Page 33)

2
CENTIX 60
english Important safety instructions
Vacuum unit Always read the operating instructions before starting
up the CENTIX vacuum unit, and keep them readily
available.
Do not cover vacuum unit motor air inlet (on rear of
cover), otherwise motor may overheat and shut off.
Installing the vacuum unit Fire protection
Do not place vacuum unit in rooms in which there is risk of fire!
When routing the tube system in fire lobbies, observe national
building regulations and install suitable fire protection equipment if
necessary.
Expansion joints
When the tube system is being routed through expansion joints,
ensure that the tubes are ‘slideable’ by installing protective insulation
at both sides of the expansion joint. Route control cable in a cable
protection tube.
Gluing the tubes
Follow instructions on safe handling and use of adhesives (inscrip-
tion on tube).
Installing the vacuum unit above vacuum sockets
Installing the vacuum unit above vacuum sockets may prevent heavy
particles from being sucked up. Check interior of vacuum sockets for
residue at regular intervals.
Operating the suction tube
system The following materials must not be sucked up, since they are a
threat to persons or can damage the equipment:
– Liquids and wet dirt
– Dust that is hazardous to health
– Flammable, explosive dust (e.g. magnesium dust, aluminium
dust etc.)
– Hot materials (glowing cigarettes, hot ash etc.)
The following items must not be sucked up because they may block
the tube system:
– Long
items
– Cleaning rags, cloths or the like.