Elmo Rietschle L-BV7 - Manual (Page 31)

© Gardner Denver Deutschland GmbH 31 / 64 610.48060.40.000
Commissioning
8.3 Operation with operating-liquid feed
See Fig. 9, Pg. 31; and Fig. 10, Pg. 31, as well as Fig. 11, Pg. 32 and Fig. 12, Pg. 32.
Proceed as follows here:
Method A:
1) Set pre-pressure of operating liquid (Fig. 9,
Pg. 31):
 Set a pre-pressure p
A
in the feed pipe for
the operating liquid (Item A) around
approx. 1 bar [14.5 psi] above the inlet
pressure p
B
in the inlet pipe (Item B).
2) Start up the unit:
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.
Method B:
1) Start up the unit:
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.
2) Check the operating-liquid flow rate:
 with the flow meter (Fig. 11, Pg. 32, and
Fig. 12, Pg. 32, Item 2)
OR
 by measuring the volume of operating liquid
per unit of time that exits at the discharge
connection with a graduated vessel
(Fig. 10, Pg. 31)
3) Set/correct the operating-liquid flow rate:
 via the control valve (Fig. 11, Pg. 32, and
Fig. 12, Pg. 32, Item 3)
 Nominal operating-liquid flow rate:
For nominal values, see Chapter 4.3,
"Operating conditions", Section "Nominal
operating-liquid flow rate", Pg. 17.
A
B
p = p + 1 bar
A B
p = p + 14.5 psi
A B A B
Fig. 9: Setting the operating-liquid flow rate:
Setting pre-pressure
Fig. 10: Setting the operating-liquid flow rate:
Measuring the volume with a graduated vessel
A Feed pipe for operating liquid
B Inlet
pipe
A Feed pipe for operating liquid
B Drain pipe for operating liquid