Elmo Rietschle L-BV7 - Manual (Page 25)

© Gardner Denver Deutschland GmbH 25 / 64 610.48060.40.000
Installation
 WARNING
Electrical danger!
The terminal box must be free
from
 foreign
bodies,
 dirt,
 humidity.
Terminal box cover and cable
entries must be tightly closed so
as to make them dustproof and
waterproof.
Check for tightness at regular
intervals.
For motor overload protection:
 Use motor circuit breakers.
 Set the motor circuit breakers to the
nominal current specified on the rating
plate.
For supply by converter:
 High-frequency current and voltage
harmonics in the motor supply cables can
lead to emitted electromagnetic
interference.
 Use shielded supply cables,
whereby the shield must be installed on
both sides.
 Limit speed:
see Chapter 4.2, "Electrical data", Pg. 16.
CAUTION
If the unit is run dry, the
mechanical seal will be
destroyed in a matter of seconds!
DO NOT switch on as long as the
unit is not filled with operating
liquid!
7.3 Connecting pipes/hoses (vacuum
pump/compressor)
Fig. 7: Pipe/hose connection of vacuum
pump/compressor
1 Operating-liquid port G ¼"
2 Discharge
connection
3 Inlet connection
4 Connection for cavitation protection G ¼"
5 Drain opening G ¼"
To prevent foreign bodies from entering the
unit, all connections are sealed off when
delivered.
Do not remove the sealing plugs until
immediately before connecting the
pipes/hoses.
For the arrangement of the pipe/hose
connection, see Fig. 7, Pg. 25.
The pumped gases/vapors are sucked in via
the inlet connection (see Chapter 7.3.1,
Pg. 26) and discharged via the discharge
connection (see Chapter 7.3.2, Pg. 26).
For operation the unit must be continuously
supplied with operating liquid.
This is fed in via the operating-liquid port (see
Chapter 7.3.3, Pg. 26) and discharged
together with the pumped gases/vapors
through the discharge connection.