Krom Schroder VAS Series User Manual

GB-7
D
GB
F
NL
I
E
VAS without damping
1 Disconnect the system from the electrical power
supply.
 Shut off the gas supply.
▷ Remove the M20 cable gland or other type of
connection.
43 5
9
7 86
▷ Depending on the construction stage of the unit,
there are two different methods for replacing
the actuator:
If the unit concerned has no O-ring in this place
(arrow), replace the actuator as described here.
Otherwise, go to the next note.
VAS 2–3
VAS 1
10
10
11
Slide seal
under the
second
groove.
Insert seals.
Position of the
metal ring can
be selected.
▷ If the unit concerned has an O-ring in this place
(arrow), replace the actuator as described here:
▷
VAS 1: use all seals from the actuator adapter set.
VAS 2/3: use the small seal from the actuator
adapter set and only one of the large seals.
VAS 1–3
10
11
Slide seal
under the
second
groove.
1 Position new actuator.
1 Follow the reverse procedure when reassem-
bling.
14 Fit the M20 cable gland or plug and socket.
15 Connect the VAS to the electrical power supply,
see page4 (Wiring).
VAS../L with damping unit
1 Disconnect the system from the electrical power
supply.
 Shut off the gas supply.
▷ Loosen the setscrews, but do not unscrew com-
pletely (M3 = 1.5 mm hexagon socket, M5 =
2.5mm hexagon socket).
M3
M5
4 53
7 86
9 For further disassembly and replacing the actua-
tor, see section on replacing the actuator.
▷ Once the new actuator has been wired, the
damping unit can be fitted as described below
and set to the desired start gas rate.
N
2
<
–
1,5 x p
u max
M3
11 1210
1413
18
17
Screw in
the M3
setscrews.
15 Open the gas solenoid valve and the gas supply.

Krom Schroder VAS Series Specifications

General

Brand	Krom Schroder
Model	VAS Series
Category	Control Unit
Language	English