Elmo Rietschle L-BV7 - Manual (Page 33)

© Gardner Denver Deutschland GmbH 33 / 64 610.48060.40.000
Operation
9 Operation
 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 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!
 WARNING
Danger of burns and scalding
from hot surfaces of the pump-
motor unit and from hot fluids!
Do not touch during operation!
Allow to cool after shut-down!
NOTICE
Maximum permissible quantity of
water entrained via the inlet
connection:
See Fig. 13, Pg. 32.
9.1 Self-priming
operation
Follow the instructions contained in
Chapter 8.2, "Self-priming operation", Pg. 30
for this operating mode.
9.2
Operation with operating-liquid feed
Start-up
For non-automatic operation (Fig. 11, Pg. 32):
 Open the stop valve (Item 4) manually.
The operating liquid is fed in.
 Switch on the unit.
For automatic operation (Fig. 12, Pg. 32):
 Switch on the unit.
 The solenoid valve (Item 4) opens
and the operating liquid is fed in.
Shut down:
For non-automatic operation (Fig. 11, Pg. 32):
 Switch off the pump-motor unit.
 Close the stop valve (Item 4) manually.
Feeding of the operating liquid is cut off.
 The following applies for the control valve
(Item 3) for setting the operating-liquid flow
rate:
In case of an interruption in operation, the
valve setting (i.e. the valve position or the
open valve cross-section) is not changed.
For automatic operation (Fig. 12, Pg. 32):
 Switch off the pump-motor unit.
 The solenoid valve (Item 4) closes,
and feeding of the operating liquid is cut off.
 The following applies for the control valve
(Item 3) for setting the operating-liquid flow
rate:
In case of an interruption in operation, the
valve setting (i.e. the valve position or the
open valve cross-section) is not changed.