Safety
3.1.0.16–20 Edition 01.10
GB
F
NL
I
CZ
PL
RUS
H
E
DK
S
N
P
Please read and keep in a safe place
GR
➔ www.docuthek.com
Please read through these instructions
carefully before installing or operating. Following the installation, pass the instructions on to the
operator. These instructions can also be found at
www.docuthek.com.
Explanation of symbols
• ,  ,  ,  ...= Action
▷
= Instruction
Liability
We will not be held liable for damages resulting
from non-observance of the instructions and noncompliant use.
Safety instructions
Information that is relevant for safety is indicated in
the instructions as follows:
Operating instructions
D
Filter module VMF
Measuring orifice VMO
Fine-adjusting valve VMV
DANGER
Translation from the German
© 2008 – 2010 Elster GmbH
Indicates potentially fatal situations.
WARNING
Contents
Filter module VMF
Measuring orifice VMO
Fine-adjusting valve VMV . . . . . . . . . . . . . . . . . 1
Checking the usage . . . . . . . . . . . . . . . . . . . . 2
Intended use . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Type code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Part designations . . . . . . . . . . . . . . . . . . . . . . . . 2
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
VMV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
VMF with pressure switch . . . . . . . . . . . . . . . . . . 3
Tightness test . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . 4
VMV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
VMO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Orifice plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Seal set VA 1 – 3 . . . . . . . . . . . . . . . . . . . . . . . . . 7
Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Service life . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
GB-1
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.
Transport
On receipt of the product, check that the delivery is
complete (see Part designations). Report any transport damage immediately.
Storage
Store the product in a dry place. Ambient temperature: see Technical data.
GB
D
TR
Part designations
VMF, VMV, VMO
VMF..1–4
9
1
2
2
1
3
3
E
I
NL
Intended use
valVario filter module VMF, measuring orifice VMO
and fine-adjusting valve VMV for installation in gas
control and safety systems in the fields of industrial
and commercial gas heat generation.
VMF: with replaceable filter pad insert to protect
against soiling of downstream appliances.
VMO: with replaceable orifice insert. For use as a
restricting or measuring orifice.
VMV: fine-adjusting valve for presetting the gas or air
flow rate to gas burners or gas appliances.
This function is only guaranteed when used within the
specified fields of application, see also Technical data.
Any other use is considered as non-compliant.
Type code
Code
Description
VMF
valVario filter module
VMO
valVario measuring orifice
VMV
valVario fine-adjusting valve
1–3
Size
–
Without inlet and outlet flange
10 – 65
Nominal inlet diameter [DN]
/10 – /65
Nominal outlet diameter [DN]
R
Rp internal thread
N
NPT internal thread
F
Flange to ISO 7005
05
pe max. 500 mbar
M
With test points
P
With screw plugs
1
With pressure switch: DG 17/VC
2
DG 40/VC
3
DG 110/VC
4
DG 300/VC
xx
Orifice diameter
F
GB
Checking the usage
4
1
2
3
4
5
6
7
8
9
7
5
8
6
Housing
Type label
Base plate
O-ring
Double block seal
Connection parts (2 ×)
Pressure test point
Sealing plug
Pressure switch DG..VC
Inlet pressure pe and ambient temperature: see type
label.
Osnabrück, Germany
VM
CE-0063BO1580
Installation
▷▷ Installation position: install the VMF with the base
plate pointing downwards or sideways, otherwise
dirt can collect in the housing when replacing the
filter pad. The VMV can be installed as required;
when fitting to pressure regulator VAD, VAG or
VAV, the base plate must be facing the same
direction as the regulator body. VMO can be installed as required.
▷▷ Installation position when using valVario controls:
VMF is fitted upstream of the control, VMV is fitted downstream of the control. When used as a
restricting orifice, the VMO is fitted downstream
of the control.
VMF
GB-2
VMV, VMO
▷▷ Installation position with inlet and outlet flanges:
VMF, VMV and VMO may be inserted at any position in the pipework. When used as a measuring
orifice, the length of the inlet and outlet section
of the VMO must be ≥ 5 DN.
VMF, VMV
VMO
VMV
▷▷ If the fine-adjusting valve VMV is fitted downstream of a pressure regulator VAD, VAG or VAV,
a differential pressure orifice with rubber seals
G must be inserted at the outlet of the pressure
regulator.
G
≥ 5 DN
CAUTION
Please observe the following to ensure that the VMF,
VMO or VMV is not damaged during operation:
–Only secure the appliance by holding the octagon
on the flange with a suitable spanner – risk of
external leakage.
WARNING
2
O-ring must
be fitted.
3
5
7
8
9
10
L1
2
NO
Can be
rotated in
90° steps.
If VMF, VMO or VMV has been delivered with two
flanges and is subsequently attached to a valVario
control, use the double block seal instead of the
O-ring. The double block seal must be ordered
separately, see [Seal set VA 1 – 3 – p. 7].
1
VMF with pressure switch
Wiring the pressure switch DG..VC
12
4
6
GB-3
11
13
3
COM
1
NC
3
2
1
GB
▷▷ The housing must not touch any surrounding walls.
Minimum clearance 20 mm.
▷▷ Sealing material and thread cuttings must not be
allowed to get into the housing.
▷▷ A filter must be installed upstream of every system.
▷▷ Ensure that there is sufficient space for installation
and adjustment.
▷▷ Do not store or install the unit in the open air.
D
≥ 5 DN
▷▷ Unit leaking: dismantle the VMF, VMO or VMV
and return it to the manufacturer.
Setting the pressure switch DG..VC
▷▷ Deviation from the switching point during testing
pursuant to EN 1854 Gas pressure switches:
± 15%.
15
14
Commissioning
16
VMV
Setting the flow rate
▷▷ At the factory, the fine-adjusting valve VMV is
adjusted for maximum flow rate (100%).
.
V [%]
17
100
E
I
NL
18
Adjusting range
Mean switching
(adjusting toler15
16
14
differential
at min.
ance = ± 15% of
and max. setting
the scale value)
DG 17VC
2 – 17 mbar
0.7 – 1.7 mbar
DG 40VC
5 – 40 mbar
1 – 2 mbar
DG 110VC
30 – 110 mbar
3 – 8 mbar
DG 300VC 100 – 300 mbar
6 – 15 mbar
F
GB
17
0
Closed
Open
VMV
CAUTION
18
Do not overturn the adjusting screw, as the fineadjusting valve then can no longer be adjusted.
1
Tightness test
2,5 mm
1 To be able to check the tightness, shut off the
downstream pipeline as close as possible to the
VMF, VMV or VMO.
2
2 Check the VMV for leaks – see [Tightness test –
p. 4].
VMO
Replacing the orifice plate
▷▷ Orifice plates and flow rate diagrams – see [Orifice
plate – p. 5]
1 Shut off the gas supply.
3
ax.
× pe m
≤ 1,5
N2
2
4
3
5
2,5 mm
N2
ax.
× pe m
≤ 1,5
6
N2
≤ 1,5
4
5
6
7
8
9
10
11
7
×p
e ma
x.
7 Tightness OK: open the pipeline.
▷▷ Pipeline leaking: check O-rings. When installing
on a valVario valve or pressure regulator, check
the O-ring and double block seal.
GB-4
11
10
Accessories
Orifice plate
Orifice insert for installing in the plate bracket of measuring orifice VMO. The hole diameter is engraved on
the orifice insert. Supply including the new seal for
the base plate.
12Check the VMO for tightness – see [Tightness
test – p. 4].
CAUTION
[mm]
4
5
6
8
10
12
14
16
18
20
24
28
32
34
38
xx* VMF
Replacing the filter pad
▷▷ If the flow rate is correct, check for tightness – see
[Tightness test – p. 4].
▷▷ If the flow rate has dropped, replace the filter pad.
1 Disconnect the system from the electrical power
supply.
2 Shut off the gas supply.
3
4
2,5 mm
5
6
Order No.
Suitable for
Suitable for
VMO 1
VMO 2
35457454
–
35457455
–
35457456
–
35457457
–
35457458
–
35457459
–
35457460
–
35457461
35457464
35457462
–
35457463
35457465
–
35457466
–
35457467
–
35457468
–
35457469
–
35457470
34339103
34339104
D
Hole diameter
In order to ensure smooth operation: check the
VM for tightness annually, or every six months if
operated with biologically produced methane.
▷▷ Flow rate diagrams for orifice plates with a hole
diameter of 4 to 38 mm. Pressure loss is measured at the VMO pressure taps:
7
VMO 110
∆p [mbar]
100
80
60
50
40
8
9
10
30
20
11
4 mm
5 mm
6 mm
10
8
6
5
4
12
3
2
1
1
13Check the VMF for tightness – see [Tightness
test – p. 4].
▼
GB-5
2
3
5
8 10
20
30 40
60 100
V' [m3/h (n)]
GB
Maintenance
VMO 115
VMO 240
∆p [mbar]
100
80
60
50
40
∆p [mbar]
100
80
60
50
40
30
30
20
20
4 mm
5 mm
6 mm
2
I
E
3
2
NL
16 mm
20 mm
24 mm
28 mm
32 mm
10
8
6
5
4
3
F
GB
10
8
6
5
4
1
1
1
2
3
5
8 10
20
30 40
10
60 100
V' [m3/h (n)]
VMO 120
20
30
50 70 100
200 300
500
1000
V' [m3/h (n)]
VMO 250
∆p [mbar]
100
80
60
50
40
∆p [mbar]
100
80
60
50
40
30
30
20
20
6 mm
8 mm
10 mm
12 mm
10
8
6
5
4
32 mm
34 mm
38 mm
10
8
6
5
4
3
3
2
2
1
1
2
3
5
8 10
20
30 40
60 100
V' [m3/h (n)]
8 10
20
30 40
60 100
V' [m3/h (n)]
1
10
VMO 125
∆p [mbar]
100
80
60
50
40
30
10 mm
12 mm
14 mm
16 mm
18 mm
20 mm
20
10
8
6
5
4
3
2
1
1
2
3
5
GB-6
20
30
50 70 100
200 300
500
1000
V' [m3/h (n)]
Seal set VA 1 – 3
When retrofitting accessories or a second valVario
control, we recommend replacing the seals.
Size 1: Seal set VA 1, Order No. 74921988,
Size 2: Seal set VA 2, Order No. 74921989.
Scope of delivery:
A 1 x double block seal,
B 2 x O-rings (flange),
C 2 x O-rings (pressure switch),
D 2 x sealing rings (test nipple/test point).
VMV 110
VMV 115
VMV 120,
VMV 125
VMV 225
VMV 232,
VMV 240,
VMV 250
V' max.
[m3/h]
202.9
278.7
3.7
432.8
13.7
806.8
13.7
1149.1
D
D
V' min.
[m3/h]
3.7
3.7
B
B
A
C
VMF
▷▷ Air flow rate V' for pressure loss p:
Air flow rate V' [m3/h] for
D
VMF 110
VMF 115
VMF 120
VMF 125
VMF 225
VMF 232
VMF 240
VMF 250
Technical data
▷▷ Gas types: natural gas, LPG (gaseous), biologically produced methane (max. 0.1 %-by-vol. H2S)
or air; other gases on request.
▷▷ The gas must be dry in all conditions and must
not contain condensate.
▷▷ Max. inlet pressure pe:
max. 500 mbar (7.25 psig).
▷▷ Ambient temperature:
-20 to +60°C,
no condensation permitted.
▷▷ Storage temperature: 0 to +40°C.
▷▷ Housing: aluminium.
▷▷ Connection flanges with internal thread: Rp to
ISO 7-1, NPT to ANSI/ASME.
VMV
▷▷ Air flow rate V' for pressure loss p:
∆p = 1 mbar
VMV 110
VMV 115
VMV 120,
VMV 125
VMV 225
VMV 232,
VMV 240,
VMV 250
V' min.
[m3/h]
0.2
0.2
V' max.
[m3/h]
9.1
12.5
0.2
19.4
0.6
36.1
0.6
51.4
GB-7
p = 1 mbar.
4.9
7.0
13.0
16.0
23.2
31.9
38.3
41.1
p = 10 mbar
15.5
22.1
41.2
50.7
73.5
101.0
121.0
130
DG..VC
▷▷ Diaphragm pressure switch, silicone-free.
▷▷ Diaphragm: NBR.
▷▷ Housing: glass fibre reinforced PBT plastic with
low gas release.
▷▷ Lower housing section: AlSi 12.
▷▷ Max. test pressure: 2 bar (29 psig), < 15 min.
▷▷ Switching capacity:
DG..VC, 24 – 250 V AC:
I = 0.05 – 5 A at cos ϕ = 1,
I = 0.05 – 1 A at cos ϕ = 0.6.
DG..VC..G, 12 – 250 V AC:
I = 0.01 – 5 A at cos ϕ = 1,
I = 0.01 – 1 A at cos ϕ = 0.6.
DG..C..G, 12 – 48 V DC:
I = 0.01 – 1 A.
DG..VCT, 30 – 240 V AC:
I = 5 A at cos ϕ = 1,
I = 0.5 A at cos ϕ = 0.6.
DG..VCT..G, < 30 V AC:
I = 0.1 A at cos ϕ = 1,
I = 0.05 A at cos ϕ = 0.6.
▷▷ If the DG..VC..G (DG..VCT..G) has switched a
voltage > 24 V (> 30 V) and a current > 0.1 A
once, the gold plating on the contacts will have
been burnt through. It can then only be operated
at this power rating or higher power rating.
▷▷ Enclosure: IP 54 pursuant to IEC 529 with standard socket pursuant to DIN 43650 and ISO 4400,
IP 00 with AMP plug.
▷▷ Safety class: 1.
GB
∆p = 500 mbar
Type
VM 1 to
VM 2
E
I
NL
F
GB
Service life
The Pressure Equipment Directive (PED) and the
Energy Performance of Buildings Directive (EPBD)
demand regular checks on and maintenance of heating systems, in order to ensure a high level of use
in the long term, a clean method of operation and
safe function.
The service life on which the construction is based,
hereinafter referred to simply as the “service life”, is
compiled from the relevant standards. You can find
further explanations in the applicable rules and regulations and on the afecor website (www.afecor.org).
This information on service life is based on using
the product in accordance with these operating
instructions.
The product must be serviced at regular intervals.
Once the specified service life has been reached,
the safety-related functions must be checked in accordance with the section entitled “Maintenance”.
If the product passes the aforementioned function tests, you can continue to use it until the next
­scheduled maintenance operation. At this point,
these tests must be repeated.
If the product fails one of the aforementioned tests,
it must be replaced immediately.
This procedure applies to heating systems. For
­thermoprocessing equipment, observe national
regulations.
Service life (based on date of manufacture) in accordance with EN 13611, EN 161 for VM:
Service life
[years]
10
Long-term use in the upper ambient temperature
range accelerates the ageing of the elastomer materials and reduces the service life (please contact
manufacturer).
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.
Elster GmbH
Postfach 28 09, D-49018 Osnabrück
Strotheweg 1, D-49504 Lotte (Büren)
T +49 541 1214-0
We reserve the right to make technical modifications
F +49 541 1214-370
in the interests of progress.
info@kromschroeder.com, www.kromschroeder.com
GB-8