Elmo Rietschle L-BV3 - Manual (Page 16)

Commissioning
610.444430.40.000 16 / 32 © Gardner Denver Deutschland GmbH
7 Commissioning
 WARNING
Improper use of the machine can result in
serious or even fatal injuries!
Have you read the safety precautions in
Chapter 1, "Safety", Pg. 3 f.?
Otherwise you may not carry out any work with
or on the machine!
 WARNING
Danger due to gauge pressure and vacuum!
Danger due to escaping fluid!
Danger due to rotating parts!
The pump-motor unit may only be put into
operation when the following conditions are
met:
 Fan guard and vacuum pump/compressor
cover and housing are mounted.
 The lines to the discharge connection, inlet
connection and operating-liquid port are
attached.
 The lines and connections have been
tested for strength and leaks.
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!
7.1 Preparation
and start-up
CAUTION
If the pumped gases/vapors discharged on the
pressure side are passed on,
then it must be ensured that the maximum
discharge pressure of 110 kPa abs. [16.0 psia]
is not exceeded!
NOTICE
Maximum permissible quantity of water
entrained via the inlet connection:
See Fig. 9, Pg. 19.
If a shut-off device is installed in the discharge
pipe:
Make sure that the unit CANNOT be operated
with the shut-off device closed.
Fill with operating liquid:
For operation with self-priming of the
operating liquid
during installation (see
Chapter 6.3, "Connecting pipes/hoses
(vacuum pump/compressor)", Pg. 14).
For operation with operating-liquid feed,
you now fill the working area of the unit with
operating liquid.
Proceed as follows:
 Remove the sealing plug with the seal from
the cavitation protection hole.
 Open the respective shut-off valve until the
operating liquid exits from the cavitation
protection hole:
– For non-automatic operation:
Stop valve (Fig. 6, Pg. 19, Item 4).
– For automatic operation:
Stop valve in the bypass pipe (Fig. 7,
Pg. 19, Item 4a).
 Close the shut-off valve again.
 Close the cavitation protection hole with the
sealing plug and seal.
Then proceed with commissioning as
described in the following.
Check connections of the pipes/hoses for
leaks.
Check direction of rotation:
 The direction of flow of the pumped
gases/vapors is marked with arrows on the
intake and discharge connection.
 The intended shaft rotating direction is
marked with an arrow on the vacuum
pump/compressor housing.
 The pump-motor unit may not be allowed to
run dry!
Have you filled it with operating liquid
beforehand (during or after installation)?
See sections "Fill with operating liquid",
Pg. 14 and Pg. 16.
 Briefly switch on pump-motor unit.
 Compare the actual rotating direction of the
external fan with the intended shaft rotating
direction as it is indicated with the arrow on
the vacuum pump/compressor housing of
the pump-motor unit (Fig. 1, Pg. 3, Item 9).
 Switch off pump-motor unit again.
 If necessary, reverse the direction of
rotation of the motor.