Safety. Operating instructions Filter module VMF Measuring orifice VMO Fine-adjusting valve VMV DANGER. Contents WARNING CAUTION

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1 0 Elster GmbH Edition 09. Translation from the German D GB F NL I E DK S N P GR TR CZ PL RUS H Operating instructions Filter module VMF Measuring orifice VMO Fine-adjusting valve Contents Filter module VMF Measuring orifice VMO Fine-adjusting valve... Contents... Safety.... Checking the usage... Intended use... Type code... Part designations... Installation VMF with pressure switch... Tightness test... Commissioning VMO... Maintenance...5 Accessories...5 Orifice plate...5 Seal set VA Technical data...7 Designed lifetime...8 Logistics...8 Certification...8 Contact...8 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 operator. This unit must be installed and commissioned in accordance with the regulations and standards in force. These instructions can also be found at Explanation of symbols,,,... = Action = Instruction Liability We will not be held liable for damage resulting from non-observance of the instructions and non-compliant 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. Changes to edition 09. The following chapters have been changed: Checking the usage Installation Accessories GB GB-

2 GB Checking the usage Intended use valvario filter module VMF, measuring orifice VMO and fine-adjusting valve 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. : 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 page 7 (Technical data). Any other use is considered as non-compliant. Type code Code Description VMF VMO valvario filter module valvario measuring orifice valvario fine-adjusting valve Size No inlet and outlet flange 0 50 Nominal inlet diameter DN /0 /5 Nominal outlet diameter DN R N F Rp internal thread NPT internal thread Flange to ISO p u max. 500 mbar M P xx With test points With screw plugs With pressure switch: DG 7/VC DG 0/VC DG 0/VC DG 00/VC Orifice diameter Part designations VMF,, VMO 5 9 VMF Housing Type label Base plate O-ring 5 Double block seal Connection parts ( ) 7 Pressure test point 8 Sealing plug 9 Pressure switch DG..VC Inlet pressure p u and ambient temperature: see type label. Installation Osnabrück, Germany VM CE-00BO580 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 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, is fitted downstream of the control. When used as a restricting orifice, the VMO is fitted downstream of the control. VMF GB-

3 Installation position with inlet and outlet flanges: VMF, 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, VMO If the fine-adjusting valve 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 5 DN The housing must not touch any surrounding walls. Minimum clearance 0 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. VMF with pressure switch Wiring the pressure switch DG..VC 7 8 GB CAUTION Please observe the following to ensure that the VMF, VMO or is not damaged during operation: Only secure the appliance by holding the octagon on the flange with a suitable spanner risk of external leakage. 9 0 L COM NO NC WARNING If VMF, VMO or 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 page (Seal set VA ). Can be rotated in 90 steps. O-ring must be fitted. 5 GB-

4 GB Setting the pressure switch DG..VC Deviation from the switching point during testing pursuant to EN 85 Gas pressure switches: ± 5% Adjusting range Mean switching (adjusting tolerance = ± 5% of differential at min. and max. setting the scale value) DG 7VC 7 mbar mbar DG 0VC 5 0 mbar mbar DG 0VC 0 0 mbar 8 mbar DG 00VC mbar 5 mbar 7 8 Unit leaking: dismantle the VMF, VMO or and return it to the manufacturer. Commissioning Setting the flow rate At the factory, the fine-adjusting valve is adjusted for maximum flow rate (00%). Q [%] 00 0 Closed CAUTION Open Do not overturn the adjusting screw, as the fineadjusting valve then can no longer be adjusted. Tightness test To be able to check the tightness, shut off the downstream pipeline as close as possible to the VMF, or VMO.,5 p u max. N 5,5 mm Check the for leaks see page (Tightness test). VMO Replacing the orifice plate Orifice plates and flow rate diagrams see page 5 (Orifice plate) Shut off the gas supply. N,5 p u max. 7,5 mm 5 N,5 p u max 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-

5 0 O-ring may be greased lightly, e.g. with Klüber Nontrop ZB9. Follow the reverse procedure when reassembling. Check the VMO for tightness see page (Tightness test). Maintenance 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. CAUTION In order to ensure smooth operation: check the VM for tightness annually, or every six months if operated with biologically produced methane. VMF Replacing the filter pad If the flow rate is correct, check for tightness see page (Tightness test). If the flow rate has dropped, replace the filter pad. Disconnect the system from the electrical power supply. Shut off the gas supply.,5 mm Orifice Hole diameter [mm] Order No. VMO D /B 7980 VMO D5 /B VMO D /B VMO D8 /B VMO D0 /B VMO D /B VMO D /B VMO D /B 7980 VMO D8 /B VMO D0 /B VMO Dx /B* xx* 798 VMO D /B 798 VMO D0 /B VMO D /B 798 VMO D8 /B VMO D /B 7988 VMO D /B 7989 VMO D8 /B VMO Dx /B xx* 798 * Hole diameter on request. Flow rate diagrams for orifice plates with a hole diameter of to 8 mm for operation with natural gas. Pressure loss is measured at the VMO pressure taps: GB VMO 0/ mm 5 mm mm Check the VMF for tightness see page (Tightness test) Q n [m /h] GB-5

6 GB VMO mm 8 mm mm 8 mm 0 mm mm 0 mm mm Q n [m /h] VMO 0 mm 0 mm mm 8 mm mm Q n [m /h] VMO mm mm mm mm 8 mm 0 mm 0 mm mm mm mm 8 mm 0 mm Q n [m /h] VMO mm mm 8 mm mm mm 8 mm Q n [m /h] VMO mm 0 mm mm Seal set VA When retrofitting accessories or a second valvario control, we recommend replacing the seals. E C A C D E Q n [m /h] Seal set for size : Order No Seal set for size : Order No B GB-

7 Scope of delivery: A x double block seal, B x retaining frame (the retaining frame is not required for attachment of VMx), C x O-rings (flange), D x O-rings (pressure switch), for test point/screw plug: E x sealing rings (flat sealing), x profiled sealing rings. Filter pad set Air flow rate Q for pressure loss p: p = mbar Q min. [m /h] Q max. [m /h] , p = 0 mbar GB A B D Filter pad set for size : Order No Filter pad set for size : Order No Scope of delivery: A x retaining frame with strainer, B 0 x filter pads, C 0 x seals for the base plate, D x seals for /8" test points, E x screws for securing the base plate. Technical data C Gas types: natural gas, LPG (gaseous), biologically produced methane (max. 0. %-by-vol. H S) or air; other gases on request. The gas must be dry in all conditions and must not contain condensate. Max. inlet pressure p u : max. 500 mbar (7.5 psig). Medium and ambient temperatures: -0 to +0 C, no condensation permitted. Long-term use in the upper ambient temperature range accelerates the ageing of the elastomer materials and reduces the service life (please contact manufacturer). Storage temperature: -0 to +0 C. Housing: aluminium. Connection flanges with internal thread: Rp to ISO 7-, NPT to ANSI/ASME. E Q min. [m /h] Q max. [m /h] , VMF Air flow rate Q for pressure loss p: Air flow rate Q [m /h] for p = mbar. p = 0 mbar VMF VMF VMF 0.0. VMF VMF VMF VMF VMF DG..VC Diaphragm pressure switch, silicone-free. Diaphragm: NBR. Housing: glass fibre reinforced PBT plastic with low gas release. Lower housing section: AlSi. Max. test pressure: bar (9 psig), < 5 min. Switching capacity: DG..VC, 50 V AC: I = A at cos φ =, I = 0.05 A at cos φ = 0.. DG..VC..G, 50 V AC: I = A at cos φ =, I = 0.0 A at cos φ = 0.. DG..C..G, 5 8 V DC: I = 0.0 A. DG..VCT, 0 0 V AC: I = 5 A at cos φ =, I = 0.5 A at cos φ = 0.. DG..VCT..G, < 0 V AC: I = 0. A at cos φ =, I = 0.05 A at cos φ = 0.. GB-7

8 GB If the DG..C..G (DG..VCT..G) has switched a voltage > V (> 0 V) and a current > 0. A at cos φ = or > 0.05 A at cos φ = 0. 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 5 pursuant to IEC 59 with standard socket pursuant to DIN 50 and ISO 00, IP 00 with AMP plug. Safety class:. Designed lifetime This information on the designed lifetime is based on using the product in accordance with these operating instructions. Once the designed lifetime has been reached, safety-relevant products must be replaced. Designed lifetime (based on date of manufacture) in accordance with EN and EN for VM to VM : 0 years. You can find further explanations in the applicable rules and regulations and on the afecor website ( This procedure applies to heating systems. For thermoprocessing equipment, observe local regulations. Logistics Transport Protect the unit from external forces (blows, shocks, vibration). On receipt of the product, check that the delivery is complete (see page (Part designations)). Report any transport damage immediately. Storage Store the product in a dry and clean place. Storage temperature: see page 7 (Technical data). Storage time: months in the original packaging before using for the first time. If stored for longer than this, the overall service life will be reduced accordingly (by the corresponding amount of extra storage time). Packaging The packaging material is to be disposed of in accordance with local regulations. Disposal Components are to be disposed of separately in accordance with local regulations. Certification Declaration of conformity We, the manufacturer, hereby declare that the products VMF, VMO and, marked with product ID No. CE-00BO580, comply with the essential requirements of the following Directives: 009//EC in conjunction with EN, EN, EN 88-, EN and EN 85, 00/95/EC, 00/08/EC. The relevant products correspond to the type tested by the notified body 00. The production is subject to the surveillance procedure pursuant to Directive 009//EC Annex II paragraph. Elster GmbH Scan of the Declaration of conformity (D, GB) see Eurasian Customs Union The products VMF, VMO and meet the technical specifications of the Eurasian Customs Union. Contact If you have any technical questions, please contact your local branch office/agent. The addresses are Elster GmbH available on the Internet or from Elster GmbH. Strotheweg, D-950 Lotte (Büren) Tel We reserve the right to make technical modifications Fax in the interests of progress. info@kromschroeder.com, GB-8