Elmo Rietschle C-VLR 301 - Manual (Page 15)

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Installation
5.3 Connecting pipes
a) Vacuum connection at (Fig. 2/A).
b) Connect the vacuum line.
NOTICE
Material damage resulting from the forces and
torques of the pipes on the unit being too high.
Only screw pipes in by hand.
The pumping capacity of the vacuum pump
is reduced if the suction pipe is too narrow
and/or too long.
c) The extracted air can be discharged through the
exhaust silencer (Fig. 2/B) or conducted away
via a pipe.
NOTICE
Exhaust air must not be restricted
No blocking systems must be built into the
exhaust air pipe (max. pressure difference 50
mbars). When the exhaust air pipe is connected it
must be checked regularly for impurities.