GB-7
D
GB
F
NL
I
E
+
N
2
≤
1,5 x p
u max
+
-
N LV1
+
V
15
17
4
3
6
5
14
19
18
20
16
7
8
9
10
11
12
13
Can be
rotated max.
3 x 360°. Ad-
just the start
gas rate.
Tightness OK: release the gas supply.
Replacing a defective damping unit
VG..L
Disconnect the system from the electrical power
supply.
Shut off the gas supply.
+
+
N
2
≤
1,5 x p
u max
V
7
8
4
3
6
5
9
Can be
rotated max.
3 x 360°. Ad-
just the start
gas rate.
Maintenance
CAUTION
In order to ensure smooth operation: check the
tightness and function of the VG every year, or every
six months if operated with biologically produced
methane.
Disconnect the system from the electrical power
supply.
Shut off the gas supply.
Cleaning the strainer
▷
If the flow rate is correct, see page 5 (Tight-
ness test).
▷
If the flow rate has dropped, clean the strainer.
VG 6 – 8
9
8
10
13
5
3
7
11
6
12
14
4
Follow the reverse procedure when reassem-
bling.
VG 0 – 5/0
9
5
3
7
6
8
10
4
12
11
13
