Krom Schroder MB 7 User manual

DK S N P GR
➔www.docuthek.com
D GB F NL I E
TR CZ PL RUS H
© 2016 Elster GmbH · Edition 04.16
Safety
Please read and keep in a safe place
Please read through these instructions
carefully before installing or operating. Following the
installation, pass the instructions on to the opera-
tor. This unit must be installed and commissioned
in accordance with the regulations and standards
in force. These instructions can also be found at
www.docuthek.com.
Explanation of symbols
• ,  ,  ,  ... = Action
▷= Instruction
Liability
We will not be held liable for damage resulting from
non-observance of the instructions and non-com-
pliant use.
Safety instructions
Information that is relevant for safety is indicated in
the instructions as follows:
DANGER
Indicates potentially fatal situations.
WARNING
Indicates possible danger to life and limb.
CAUTION
Indicates possible material damage.
All interventions may only be carried out by qualified
gas technicians. Electrical interventions may only be
carried out by qualified electricians.
Conversion, spare parts
All technical changes are prohibited. Only use OEM
spare parts.
Contents
Operating instructions
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0546
Translation from the German
Replacing the solenoid actuator for
VAS6–9, VCS6–9, MB7
Replacing the actuator cartridge
for VAS6–9, VCS 6–9
Replacing the solenoid actuator for
VAS6–9, VCS6–9, MB7 ...............
Replacing the actuator cartridge for
VAS6–9, VCS 6–9 .....................
Contents ..............................
Safety.................................
Checking the usage .....................
Intended use ...........................2
Part designations ........................2
Replacing the solenoid actuator ..........
VAS, MB 7, quick opening/quick closing ......2
VAS, MB 7, slow opening/quick closing.......2
MB 7, slow opening/slow closing............3
Setting the start gas rate.................
Replacing the actuator cartridge ..........4
VAS 6 – 9, VCS 6 – 9 ......................4
Logistics ..............................4
Contact ...............................4
Safety
Contents

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Checking the usage
Intended use
These instructions are only to be used for replac-
ing solenoid actuators on the devices VAS 6–9,
VCS6–9, MB7 and for replacing solenoid actuators
with actuator cartridges on the devices VAS6–9,
VCS 6–9.
This function is only guaranteed when used within the
specified limits – see Technical data in the operating
instructions of the device to be converted. Any other
use is considered as non-compliant.
All other specifications regarding commissioning,
technical data, maintenance, etc. can be found in
the corresponding operating instructions of the de-
vice to be converted or go to www.docuthek.com
→Home→Elster Thermal Solutions→Products→
03Valves and butterfly valves
→Solenoid-operated butterfly valves for air MB7/
BVHM→MB 7, BVHM,
→Solenoid valves for gas VAS, VCS→VAS 6-9,
VCS 6-9.
Part designations
13
2
Solenoid actuator (quick opening) and
2 x sealing rings
Solenoid actuator (slow opening) and
3 x sealing rings
VAS 6 – 9, VCS 6– 9: actuator cartridge with
solenoid actuator
Replacing the solenoid actuator
WARNING
Please observe the following to ensure that no
damage occurs:
– Electric shocks can be fatal! Before working
on possible live components, ensure the unit
is disconnected from the power supply.
–The solenoid actuator heats up during opera-
tion. Surface temperature approx. 85°C (approx.
185°F).
 Shut off the air and gas supplies.
VAS, MB 7, quick opening/quick closing
 Disconnect the system from the electrical power
supply.
▷The pictures below may not correspond to the
actual electrical connection.
43 5
7 86
109
13 1412
Unteren
Dichtring circa
20 mm hoch-
schieben.
▷Replace all seals from the conversion kit.
43 5
7 86
109
13 1412
Slide the
lower sealing
ring approx.
20 mm up.
 Unscrew the housing cover from the new actua-
tor.
43 5
7 86
109
13 14
12
Unteren
Dichtring circa
20 mm hoch-
schieben.
5 After wiring, open the air and gas supplies, and
switch on the power supply.
VAS, MB 7, slow opening/quick closing
 Disconnect the system from the electrical power
supply.
Oel
43 5
10 119
16
12 13
7 866
17
18 19 20
21 22
15
Unteren
Dichtring circa
20 mm hoch-
schieben

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Oel
43 5
10 119
16
12 13
7 866
17
18 19 20
21 22
15
Unteren
Dichtring circa
20 mm hoch-
schieben
▷Replace all seals from the conversion kit.
+
+
Oel
43 5
10 119
16
12 13
7 866
17
18 19 20
21 22
15
Slide the
lower sealing
ring approx.
20 mm up.
4 Unscrew the housing cover from the new actua-
tor.
▷The pictures below may not correspond to the
actual electrical connection.
Oel
43 5
10 119
16
12 13
7 866
17
18 19 20
21 22
15
Unteren
Dichtring circa
20 mm hoch-
schieben
 Turn the damping unit until the hexagon and
compression fitting are inserted in the housing
of the damping unit.
4 Push the damping unit onto the actuator applying
pressure and secure again using two screws.
▷Do not fit the third screw until the start gas rate
has been set.
N2
<
–
1,5 x pu max
4
3
8
5
67
910 11
14
13
12
9 10
13
5 Open the air and gas supplies, and switch on
the power supply.
6 If necessary, set the start gas rate, see page3
(Setting the start gas rate).
7 Fully tighten the damping unit.
MB 7, slow opening/slow closing
▷The solenoid actuator remains switched on.
Oel
3 4
2
67
8910
11 12 13
14 15 16
17 18 19
23
25
24
5 Disconnect the solenoid actuator from the electri-
cal power supply. Otherwise, the solenoid actua-
tor will heat up unnecessarily.
▷
For further disassembly and assembly of the
actuator, see Figures 5 to  under “VAS,
MB7, slow opening/slow closing”.
 Before fitting the damping unit: switch on the
solenoid actuator so that the guide pin becomes
visible.
WARNING
Risk of crushing!
– When the power supply is switched off, the
damping unit suddenly drops down onto the
solenoid actuator.
Oel
3 4
2
67
8910
11 12 13
14 15 16
17 18 19
23
25
24
Disconnect the
solenoid actuator
from the electrical
power supply.
The damping
unit is lowered.
6 Open the air and gas supplies, and switch on
the power supply.
Setting the start gas rate
▷ The start gas rate can be set by turning the
damping unit a maximum of 3turns.
▷There must be a period of 20 seconds between
switching the device off and on again so that the
damping is fully effective.
▷ Undo the screw at the “V
.
Start” mark by ap-
prox.1mm, but do not unscrew completely.
+
V
+
-
+
V
+
V
max. 3 x 360°
1 2 3

Elster GmbH
Strotheweg 1, D-49504 Lotte (Büren)
Tel [phone]
Fax [phone]
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Contact
If you have any technical questions, please contact
your local branch office/agent. The addresses are
available on the Internet or from ElsterGmbH.
We reserve the right to make technical modifications
in the interests of progress. [e-mail], www.kromschroeder.com
Replacing the actuator cartridge
VAS 6 – 9, VCS 6 – 9
 Disconnect the system from the electrical power
supply.
 Shut off the gas supply.
 Remove the actuator, see page2 (Replacing
the solenoid actuator).
4 5
4 7
6
9
8
Grease
sealing rings
with Klüber
ZB 91.
Tighten screws in a crosswise
fashion with max. 10 Nm until
the screw head lies flat.
0 Install the actuator, see page 2 (Replacing
the solenoid actuator).
 Check for tightness, see section entitled “Tight-
ness test” in the corresponding operating instruc-
tions of the device to be converted.
Logistics
Transport
Protect the unit from external forces (blows, shocks,
vibration). On receipt of the product, check that the
delivery is complete, see page 2 (Part designa-
tions). Report any transport damage immediately.
Storage
Store the product in a dry and clean place.
Storage temperature: see section entitled “Technical
data” in the corresponding operating instructions of
the device to be converted.
Storage time: 6months in the original packaging
before using for the first time. If stored for longer than
this, the overall service life will be reduced by the
corresponding amount of extra storage time.
Packaging
The packaging material is to be disposed of in ac-
cordance with local regulations.
Disposal
Components are to be disposed of separately in
accordance with local regulations.
Contact