Elmo Rietschle L-BV3 - Manual (Page 15)

Installation
© Gardner Denver Deutschland GmbH 15 / 32 610.444430.40.000
NOTICE
Attach pipes/hoses free of mechanical
tensions.
Support the weight of the pipes/hoses.
6.3.1
Inlet connection and discharge
connection
The inlet connection (Fig. 3, Item 3) is
marked with an arrow pointing downward (↓).
Connect the inlet pipe here. The pumped
gases/vapors are sucked in via this.
The discharge connection (Fig. 3, Item 2) is
marked with an arrow pointing upward (↑).
Connect the discharge pipe here. Both the
pumped gases/vapors and the operating liquid
are discharged via this pipe.
CAUTION
When connecting the pump-motor unit to a
vacuum accumulator:
In this case, a check valve must be installed.
Without a check valve, operating liquid can be
sucked into the system from the pump-motor
unit. Damage to the system can occur!
CAUTION
The tightening torque for pipe connections on
intake and discharge connections (G⅜") may
not exceed 16 Nm ± 10 % [11.8 ft lbs ± 10 %]!
6.3.2 Operating-liquid
port
The operating liquid connection (Fig. 3, Item 1)
is located on the face of the vacuum
pump/compressor housing below the inlet
connection.
Connect the feed pipe for the operating liquid
here.
6.3.3 Notes
NOTICE
For operating liquid with impurities:
 Install a filter, screen or separator in the
supply line if necessary.
NOTICE
In case of operating liquid with a high lime
content
:
 Soften operating liquid
OR
 Decalcify pump-motor unit regularly (see
Chapter 10.1, "Maintenance", Pg. 24).
NOTICE
To prevent installation residues (e.g. welding
spatter) from entering the unit,
a start-up screen should be installed in the inlet
pipe for the first 100 operating hours.