BAL_1800018_001_10_1_EN.pdf

Oil filter unit OF 100 Operating Instructions 018/10 EN © All rights reserved by Maschinenfabrik Reinhausen Dissemination and reproduction of this document and use and disclosure of its content are strictly prohibited unless expressly permitted. Infringements will result in liability for compensation. All rights reserved in the event of the granting of patents, utility models or designs. The product may have been altered since this document was published. We reserve the right to change the technical data, design and scope of supply. Generally the information provided and agreements made when processing the individual quotations and orders are binding. The original operating instructions were written in German. Table of contents Table of contents 1 Introduction......................................................................................................................... 5 1.1 Validity................................................................................................................................................ 5 1.2 Manufacturer....................................................................................................................................... 5 1.3 Completeness..................................................................................................................................... 5 1.4 Safekeeping........................................................................................................................................ 6 1.5 Notation conventions.......................................................................................................................... 6 1.5.1 Hazard communication system............................................................................................................................. 6 1.5.2 Information system................................................................................................................................................ 7 1.5.3 Instruction system................................................................................................................................................. 7 2 Safety................................................................................................................................... 9 2.1 Appropriate use.................................................................................................................................. 9 2.2 Fundamental safety instructions....................................................................................................... 10 2.3 Personnel qualification...................................................................................................................... 11 2.4 Personal protective equipment......................................................................................................... 12 3 Product description.......................................................................................................... 14 3.1 Scope of delivery.............................................................................................................................. 14 3.2 Function description.......................................................................................................................... 14 3.3 Setup/models.................................................................................................................................... 16 3.3.1 Design................................................................................................................................................................. 16 3.3.2 Versions.............................................................................................................................................................. 17 3.3.3 Controller............................................................................................................................................................. 17 4 Packaging, transport and storage.................................................................................. 20 4.1 Packaging......................................................................................................................................... 20 4.1.1 Suitability............................................................................................................................................................. 20 4.1.2 Markings.............................................................................................................................................................. 21 4.2 Transportation, receipt and handling of shipments........................................................................... 21 4.3 Storage of shipments........................................................................................................................ 22 4.4 Unpacking shipments and checking for transportation damages..................................................... 23 5 Mounting........................................................................................................................... 24 5.1 Attaching the oil filter unit and control cabinet to the transformer..................................................... 24 5.2 Electrically connecting the oil filter unit and control cabinet.............................................................. 27 Maschinenfabrik Reinhausen GmbH 2021 018/10 EN OF 100 3 Table of contents 6 Commissioning................................................................................................................. 32 6.1 Time switch....................................................................................................................................... 32 6.2 Inserting the filter cartridge and filling the oil filter unit with oil.......................................................... 32 6.3 Function test..................................................................................................................................... 34 6.4 Commissioning the transformer........................................................................................................ 35 7 Inspecting and changing the filter cartridge.................................................................. 37 7.1 Inspection......................................................................................................................................... 37 7.2 Changing the filter cartridge.............................................................................................................. 37 8 Disposal............................................................................................................................. 43 9 Technical data – standard version.................................................................................. 44 10 Special models................................................................................................................. 46 11 Drawings........................................................................................................................... 47 11.1 898718.............................................................................................................................................. 48 11.2 897688.............................................................................................................................................. 49 11.3 2079960............................................................................................................................................ 50 11.4 2079985............................................................................................................................................ 51 11.5 2079996............................................................................................................................................ 52 11.6 2080031............................................................................................................................................ 53 11.7 Flow chart......................................................................................................................................... 54 4 OF 100 018/10 EN Maschinenfabrik Reinhausen GmbH 2021 1 Introduction 1 Introduction This technical file contains detailed descriptions on the safe and proper in- stallation, connection, commissioning and monitoring of the product. It also includes safety instructions and general information about the prod- uct. This technical file is intended solely for specially trained and authorized per- sonnel. 1.1 Validity This technical file applies to the following versions of the oil filter unit: ▪ OF 100 DC – Oil filter unit with controller in the motor-drive unit with com- bined filter ▪ OF 100 DP – Oil filter unit with controller in the motor-drive unit with paper filter ▪ OF 100 SC – Oil filter unit with separate control cabinet with combined fil- ter ▪ OF 100 SP – Oil filter unit with separate control cabinet with paper filter ▪ OF 100 NC – Oil filter unit with combined filter without controller ▪ OF 100 NP – Oil filter unit with paper filter without controller ▪ OF 100 S – Only controller in a separate control cabinet (without pump unit) 1.2 Manufacturer The product is manufactured by: Maschinenfabrik Reinhausen GmbH Falkensteinstraße 8 93059 Regensburg Tel.: (+49) 9 41/40 90-0 E-mail: [email protected] Further information on the product and copies of this technical file are avail- able from this address if required. 1.3 Completeness This technical file is incomplete without the supporting documents. The following documents are considered supporting documents: ▪ Routine test report (included in the scope of delivery) ▪ Dimensional drawing (included in the scope of delivery) ▪ Technical data - General section (available on request) Maschinenfabrik Reinhausen GmbH 2021 018/10 EN OF 100 5 1 Introduction 1.4 Safekeeping Keep this technical file and all supporting documents ready at hand and ac- cessible for future use at all times. 1.5 Notation conventions 1.5.1 Hazard communication system Warnings in this technical file are displayed as follows. 1.5.1.1 Warning relating to section Warnings relating to sections refer to entire chapters or sections, sub-sec- tions or several paragraphs within this technical file. Warnings relating to sections use the following format: WARNING Type of danger! Source of the danger and outcome. ► Action ► Action 1.5.1.2 Embedded warning information Embedded warnings refer to a particular part within a section. These warn- ings apply to smaller units of information than the warnings relating to sec- tions. Embedded warnings use the following format: DANGER! Instruction for avoiding a dangerous situation. 1.5.1.3 Signal words and pictograms The following signal words are used: Signal word Definition DANGER Indicates a hazardous situation which, if not avoided, will result in death or serious injury. WARNING Indicates a hazardous situation which, if not avoided, could result in death or serious injury. CAUTION Indicates a hazardous situation which, if not avoided, could result in minor or moderate injury. NOTICE Indicates measures to be taken to prevent damage to property. Table 1: Signal words in warning notices 6 OF 100 018/10 EN Maschinenfabrik Reinhausen GmbH 2021 1 Introduction Pictograms warn of dangers: Pictogram Definition Warning of a danger point Warning of dangerous electrical voltage Warning of combustible substances Warning of danger of tipping Warning of danger of crushing Table 2: Pictograms used in warning notices 1.5.2 Information system Information is designed to simplify and improve understanding of particular procedures. In this technical file it is laid out as follows: Important information. 1.5.3 Instruction system This technical file contains single-step and multi-step instructions. Single-step instructions Instructions which consist of only a single process step are structured as fol- lows: Maschinenfabrik Reinhausen GmbH 2021 018/10 EN OF 100 7 1 Introduction Aim of action ü Requirements (optional). ► Step 1 of 1. ð Result of step (optional). ð Result of action (optional). Multi-step instructions Instructions which consist of several process steps are structured as follows: Aim of action ü Requirements (optional). 1. Step 1. ð Result of step (optional). 2. Step 2. ð Result of step (optional). ð Result of action (optional). 8 OF 100 018/10 EN Maschinenfabrik Reinhausen GmbH 2021 2 Safety 2 Safety ▪ Read this technical file through to familiarize yourself with the product. ▪ This technical file is a part of the product. ▪ Read and observe the safety instructions provided in this chapter. ▪ Read and observe the warnings in this technical file in order to avoid func- tion-related dangers. ▪ The product is manufactured on the basis of state-of-the-art technology. Nevertheless, risks to life and limb for the user or impairment of the prod- uct and other material assets due to the function may arise in the event of improper use. 2.1 Appropriate use The oil filter unit is exclusively used for cleaning or cleaning and drying the mineral insulating oil in on-load tap-changers and plunger coils. The product is designed solely for use in stationary industrial large-scale electrical energy systems and facilities. If used as intended and in compliance with the re- quirements and conditions specified in this technical file as well as the warn- ing notices in this technical file and attached to the product, then the product does not present any danger to people, property or the environment. This applies throughout the service life of the product, from delivery, installation and operation to removal and disposal. The following is considered appropriate use: ▪ Use the product only with the transformer specified in the order. ▪ Operate the product in accordance with this technical file, the agreed- upon delivery conditions and the technical data. ▪ Ensure that all necessary work is performed by qualified personnel only. ▪ Use the equipment and special tools supplied solely for the intended pur- pose and in accordance with the specifications of this technical file. ▪ The serial number of the oil filter unit must match that of the on-load tap- changer ▪ It is essential that you use the combined filter cartridge if its use is pre- scribed by Maschinenfabrik Reinhausen GmbH in order to comply with certain dielectric properties of the insulating fluid. ▪ It is essential that you use the combined filter cartridge if the oil filter unit is installed in the oil cooling unit. ▪ Only use filter cartridges from Maschinenfabrik Reinhausen GmbH. ▪ The oil filter unit is a product for environment A. This product can cause undesired electromagnetic interferences in environment B. Take appropri- ate measures where necessary. Maschinenfabrik Reinhausen GmbH 2021 018/10 EN OF 100 9 2 Safety 2.2 Fundamental safety instructions To prevent accidents, disruptions and damage as well as unacceptable ad- verse effects on the environment, those responsible for transport, installa- tion, operation, maintenance and disposal of the product or parts of the prod- uct must ensure the following: Personal protective equipment Loosely worn or unsuitable clothing increases the danger of becoming trapped or caught up in rotating parts and the danger of getting caught on protruding parts. This poses a danger to life and limb. ▪ Wear appropriate personal protective equipment such as a helmet, work gloves, etc. for the respective activity. ▪ Never wear damaged personal protective equipment. ▪ Never wear rings, necklaces, or other jewelry. ▪ If you have long hair, wear a hairnet. Work area Untidy and poorly lit work areas can lead to accidents. ▪ Keep the work area clean and tidy. ▪ Make sure that the work area is well lit. ▪ Observe the applicable laws for accident prevention in the relevant coun- try. Working during operation The product may only be operated in a sound, operational condition. Other- wise it poses a danger to life and limb. ▪ Regularly check the operational reliability of safety equipment. ▪ Comply with the inspection work, maintenance work and maintenance in- tervals described in this technical file. Explosion protection Highly flammable or explosive gases, vapors and dusts can cause serious explosions and fire. This increases the danger to life and limb. ▪ Do not install, operate or perform maintenance work on the product in ar- eas where a risk of explosion is present. Safety markings Warning signs and safety information plates are safety markings on the product. They are an important aspect of the safety concept. ▪ Observe all safety markings on the product. ▪ Make sure all safety markings on the product remain intact and legible. ▪ Replace safety markings that are damaged or missing. 10 OF 100 018/10 EN Maschinenfabrik Reinhausen GmbH 2021 2 Safety Ambient conditions To ensure reliable and safe operation, the product must only be operated under the ambient conditions specified in the technical data. ▪ Observe the specified operating conditions and requirements for the in- stallation location. Auxiliary materials and operating materials Auxiliary materials and operating materials not approved by the manufac- turer can lead to personal injury, damage to property and malfunctions of the product. ▪ For the on-load tap-changer oil compartment, only use insulating fluids that meet the requirements in accordance with IEC 60296. ▪ If approved by the transformer manufacturer, you can use alternative insu- lating fluids approved by Maschinenfabrik Reinhausen GmbH in the trans- former tank. ▪ It is imperative that you consult with Maschinenfabrik Reinhausen GmbH because specific selector operating conditions apply to alternative insulat- ing fluids. ▪ Only use conductive and grounded hoses, pipes, and pump equipment that are approved for flammable liquids. ▪ Only use lubricants and auxiliary materials approved by the manufacturer. ▪ Contact the manufacturer. Modifications and conversions Unauthorized or inappropriate changes to the product may lead to personal injury, material damage and operational faults. ▪ Only modify the product after consultation with the manufacturer. Spare parts Spare parts not approved by the manufacturer may lead to physical injury, damage to the product and operational faults. ▪ Only use spare parts approved by the manufacturer. ▪ Contact the manufacturer. 2.3 Personnel qualification The person responsible for assembly, commissioning, operation, mainte- nance and inspection must ensure that the personnel are sufficiently quali- fied. Maschinenfabrik Reinhausen GmbH 2021 018/10 EN OF 100 11 2 Safety Electrically skilled person The electrically skilled person has a technical qualification and therefore has the required knowledge and experience, and is also conversant with the ap- plicable standards and regulations. The electrically skilled person is also pro- ficient in the following: ▪ Can identify potential dangers independently and is able to avoid them. ▪ Is able to perform work on electrical systems. ▪ Is specially trained for the working environment in which (s)he works. ▪ Must satisfy the requirements of the applicable statutory regulations for accident prevention. Electrically trained persons An electrically trained person receives instruction and guidance from an electrically skilled person in relation to the tasks undertaken and the poten- tial dangers in the event of inappropriate handling as well as the protective devices and safety measures. The electrically trained person works exclu- sively under the guidance and supervision of an electrically skilled person. Operator The operator uses and operates the product in line with this technical file. The operating company provides the operator with instruction and training on the specific tasks and the associated potential dangers arising from im- proper handling. Technical Service We strongly recommend having maintenance, repairs and retrofitting carried out by our Technical Service department. This ensures that all work is per- formed correctly. If maintenance is not carried out by our Technical Service department, please ensure that the personnel who carry out the mainte- nance are trained and authorized by Maschinenfabrik Reinhausen GmbH to carry out the work. Authorized personnel Authorized personnel are trained by Maschinenfabrik Reinhausen GmbH to carry out special maintenance. 2.4 Personal protective equipment Personal protective equipment must be worn during work to minimize risks to health. ▪ Always wear the personal protective equipment required for the job at hand. ▪ Never wear damaged personal protective equipment. ▪ Observe information about personal protective equipment provided in the work area. 12 OF 100 018/10 EN Maschinenfabrik Reinhausen GmbH 2021 2 Safety Protective clothing Close-fitting work clothing with a low tearing strength, with tight sleeves and with no protruding parts. It mainly serves to protect the wearer against being caught by moving machine parts. Safety shoes To protect against falling heavy objects and slipping on slippery surfaces. Safety glasses To protect the eyes from flying parts and splashing liq- uids. Visor To protect the face from flying parts and splashing liq- uids or other dangerous substances. Hard hat To protect against falling and flying parts and materials. Hearing protection To protect against hearing damage. Protective gloves To protect against mechanical, thermal, and electrical hazards. Table 3: Personal protective equipment Maschinenfabrik Reinhausen GmbH 2021 018/10 EN OF 100 13 3 Product description 3 Product description 3.1 Scope of delivery The product is packaged with protection against moisture and is delivered as follows: ▪ Oil filter unit ▪ Filter cartridge ▪ Technical files Please note the following: ▪ Check the shipment for completeness on the basis of the shipping docu- ments. ▪ Store the parts in a dry place until installation ▪ The product must remain in its airtight, protective wrapping and may only be removed immediately before installation 3.2 Function description The oil filter unit cleans (paper filter cartridge) or cleans and dries (combined filter cartridge) the insulating fluid of on-load tap-changers. The oil filter unit and on-load tap-changer head are connected to each other by pipes. After each on-load tap-change, the insulating fluid is treated in the oil filter unit and transported back into the on-load tap-changer. A factory-set minimum run time of the pump [►Section 9, Page 44] ensures the necessary circula- tion of the entire insulating fluid, thus preventing deposits in the filter system. 14 OF 100 018/10 EN Maschinenfabrik Reinhausen GmbH 2021 3 Product description A necessary filter change is signaled by a pressure switch with signaling contact. A temperature-related and thus undesirable signal from the pres- sure switch can be suppressed on customer request. Further information on this is available in the section “Versions [►Section 3.3.2, Page 17]”. Figure 1: Overview of oil filter unit 1 Return flange 2 Stop-cock 3 Return pipe 4 Transformer 5 Pipe connection on the on-load 6 Pipe connection on the on-load tap-changer head tap-changer head 7 On-load tap-changer 8 Drain valve 9 Feed pipe 10 Stop-cock 11 Feed flange 12 Oil filter unit Maschinenfabrik Reinhausen GmbH 2021 018/10 EN OF 100 15 3 Product description 3.3 Setup/models 3.3.1 Design Figure 2: Oil filter unit 1 Pressure switch 2 Return flange 3 Nameplate 4 Ground connection 5 Drain valve 6 Temperature switch (optional) 7 Feed flange 8 Oil filter unit 9 Lifting eye bolt 10 Manometer 16 OF 100 018/10 EN Maschinenfabrik Reinhausen GmbH 2021 3 Product description 3.3.2 Versions The electrical controller of the oil filter unit is either integrated into the on- load tap-changer motor-drive unit or into a control cabinet. Depending on the desired behavior upon reaching a working pressure of 3.6 bar/0.36 MPa and depending on the voltage supply, the oil filter unit can be supplied with or without a temperature switch / rod-type thermostat. Temperature Rod-type thermostat Note switch – – A necessary filter change is signaled by a pressure switch and a sig- naling contact once a working pressure of 3.6 bar/0.36 MPa is reached, regardless of whether the increase in working pressure is caused by a contaminated filter or by an increased viscosity of the in- sulating fluid due to temperature. For AC For DC If the temperature of the insulating fluid drops below 20 °C, the viscos- ity of the insulating fluid increases and, as a result, so does the work- ing pressure. A necessary filter change is also signaled in this case when 3.6 bar/0.36 MPa is reached, even though the increase in work- ing pressure is caused by the increased viscosity and not by a contam- inated filter. This message is suppressed by a temperature switch with alternating current or by a rod-type thermostat with direct current. – For AC and DC A rod-type thermostat installed in the base of the oil filter unit switches the oil filter unit to permanent operation as soon as the temperature of the insulating fluid falls below 0 °C. The oil filter unit remains in perma- nent operation until the temperature exceeds +5 °C. Table 4: Possible versions 3.3.3 Controller The electrical controller of the oil filter unit is either installed in the motor- drive unit or in a separate control cabinet. Controller in the motor-drive unit It is activated by a potential-free contact of the motor-drive unit. The run time is set in the factory using a time relay and can be switched to permanent op- eration using rotary switch S30. The controller is equipped with electrical safety equipment. A motor protec- tive switch with thermal and magnetic overcurrent trip is fitted per pump unit. Controller integrated in separate control cabinet It is activated by a potential-free contact of the motor-drive unit. The run time is set as follows: ▪ factory setting by time relay ▪ adjustable up to 24 hours by time switch ▪ can be switched to permanent operation using rotary switch S30 Maschinenfabrik Reinhausen GmbH 2021 018/10 EN OF 100 17 3 Product description The controller is equipped with electrical safety equipment. A motor protec- tive switch with thermal and magnetic overcurrent trip as well as a miniature circuit breaker for the control circuit are fitted per pump unit. The electrical monitoring equipment in the control cabinet includes a 5-digit operating hours counter for recording the operating duration and a 6-digit pulse counter for recording the frequency with which the pump is switched on. Heating is also fitted in the control cabinet. Figure 3: Control cabinet F12 Miniature circuit breaker for P2 Time switch AC F15 Miniature circuit breaker for 2 P3 Operating hours counter AC and DC H6 Operations counter R1 Heating K7 Motor protection device Q4 Motor protective switch K8, K9 Motor protection device (op- Q5, Q6 Motor protective switch (op- tional) tional) K29 Time relay S30 Rotary switch S30 18 OF 100 018/10 EN Maschinenfabrik Reinhausen GmbH 2021 3 Product description F37 Voltage arrester X1 Connection terminal strip 1 Grounding screw Maschinenfabrik Reinhausen GmbH 2021 018/10 EN OF 100 19 4 Packaging, transport and storage 4 Packaging, transport and storage 4.1 Packaging The products are sometimes supplied with sealed packaging and sometimes in a dry state, depending on requirements. Sealed packaging surrounds the packaged goods with plastic foil on all sides. Products that have also been dried are identified by a yellow label on the sealed packaging. In the dry state, delivery is also possible in a transport container. The information in the following sections should be applied as appropriate. 4.1.1 Suitability NOTICE Property damage due to incorrectly stacked crates! Stacking the crates incorrectly can lead to damage to the packaged goods. ► The outer marking on the packaging states if, for example, the on-load tap-changer or selector has been packed upright. Never stack these crates. ► General rule: Do not stack crates above a height of 1.5 m. ► For other crates: Only stack up to 2 equally sized crates on top of one an- other. The packaging is suitable to ensure undamaged and fully functional means of transportation in compliance with local transportation laws and regula- tions. The packaged goods are packed in a sturdy crate. This crate ensures that, when in the intended transportation position, the packaged goods are stabi- lized to prevent impermissible changes in position, and that none of the parts touch the loading surface of the means of transport or touch the ground after unloading. Sealed packaging surrounds the packaged goods with plastic foil on all sides. The packaged goods are protected from humidity using a desiccant. The plastic foil was bonded after the desiccant is added. 20 OF 100 018/10 EN Maschinenfabrik Reinhausen GmbH 2021 4 Packaging, transport and storage 4.1.2 Markings The packaging bears a signature with instructions for safe transport and cor- rect storage. The following symbols apply to the shipment of non-hazardous goods. Adherence to these symbols is mandatory. Protect against Top Fragile Attach lifting Center of mass moisture gear here Table 5: Shipping pictograms 4.2 Transportation, receipt and handling of shipments WARNING Danger of death or severe injury! Danger of death or serious injuries due to tipping or falling load. ► Only transport the crate when closed. ► Do not remove the securing material used in the crate during transport. ► If the product is delivered on a pallet, secure it sufficiently. ► Only trained and authorized persons may select the sling gear and se- cure the load. ► Do not walk under the suspended load. ► Use means of transport and lifting gear with a sufficient carrying capacity in accordance with the weight stated on the delivery slip. In addition to oscillation stress, jolts must also be expected during trans- portation. In order to prevent possible damage, avoid dropping, tipping, knocking over and colliding with the product. If a crate tips over, falls from a certain height (e.g. when slings tear) or is subject to an unbroken fall, damage must be expected regardless of the weight. Every delivered shipment must be checked for the following by the recipient before acceptance (acknowledgment of receipt): ▪ Completeness based on the delivery slip ▪ External damage of any type The checks must take place after unloading when the crate or transport con- tainer can be accessed from all sides. Maschinenfabrik Reinhausen GmbH 2021 018/10 EN OF 100 21 4 Packaging, transport and storage Visible damage If external transport damage is found upon receipt of the shipment, proceed as follows: ▪ Immediately record the identified transport damage in the shipping docu- ments and have this countersigned by the carrier. ▪ In the event of severe damage, total loss or high damage costs, immedi- ately notify the manufacturer and the relevant insurance company. ▪ After identifying damage, do not modify the condition of the shipment fur- ther and retain the packaging material until an inspection decision has been made by the transport company or the insurance company. ▪ Record the details of the damage immediately on site together with the carrier involved. This is essential for any claim for damages. ▪ Photograph damage to packaging and packaged goods. This also applies to signs of corrosion on the packaged goods due to moisture inside the packaging (rain, snow, condensation). ▪ NOTICE! If the product is delivered in sealed packaging, inspect this im- mediately. If the sealed packaging is damaged, do not under any circum- stances install or commission the packaged goods. Either re-dry the dried packaged goods as per the operating instructions, or contact the manu- facturer to agree on how to proceed. Failure to do so may result in dam- age to the packaged goods. ▪ Identify the damaged parts. Hidden damage When damages are not determined until unpacking after receipt of the ship- ment (hidden damage), proceed as follows: ▪ Make the party responsible for the damage liable as soon as possible by telephone and in writing, and prepare a damage report. ▪ Observe the time periods applicable to such actions in the respective country. Inquire about these in good time. With hidden damage, it is very hard to make the transportation company (or other responsible party) liable. Any insurance claims for such damages can only be successful if relevant provisions are expressly included in the insur- ance terms and conditions. 4.3 Storage of shipments Packaged goods dried by Maschinenfabrik Reinhausen Upon receipt of the shipment, immediately remove the packaged goods dried by Maschinenfabrik Reinhausen from the sealed packaging and store air-tight in dry insulating fluid until used if the packaged goods were not sup- plied in insulating fluid. Non-dried packaged goods Do not store combined filter cartridges for longer than 4 years. Otherwise the trouble-free function of the oil filter unit cannot be guaranteed. 22 OF 100 018/10 EN Maschinenfabrik Reinhausen GmbH 2021 4 Packaging, transport and storage Non-dried packaged goods with functional sealed packaging can be stored outdoors when the following conditions are complied with. When selecting and setting up the storage location, ensure the following: ▪ Protect stored goods against moisture (flooding, water from melting snow and ice), dirt, pests such as rats, mice, termites and so on, and against unauthorized access. ▪ Store the crates on timber beams and planks as a protection against ris- ing damp and for better ventilation. ▪ Ensure sufficient carrying capacity of the ground. ▪ Keep entrance paths free. ▪ Check stored goods at regular intervals. Also take appropriate action after storms, heavy rain or snow and so on. Protect the packaging foil from direct sunlight so that it does not disintegrate under the influence of UV rays, which would cause the packaging to lose its sealing function. If the product is installed more than 6 months after delivery, suitable mea- sures must be taken without delay. The following measures can be used: ▪ Correctly regenerate the drying agent and restore the sealed packaging. ▪ Unpack the packed goods and store in a suitable storage space (well ven- tilated, as dust-free as possible, humidity < 50% where possible). 4.4 Unpacking shipments and checking for transportation damages ▪ NOTICE! Transport the packaged crate to the place where installation will take place. Do not open the sealed packaging until just before installation. If this is not done, damage to the packaged goods may occur due to inef- fectively sealed packaging. ▪ WARNING! When unpacking, check the condition of the packaged goods.Secure packaged goods in an upright crate from tipping out. If this is not done, the packaged goods may be damaged and serious injuries may result. ▪ Check completeness of supplementary parts on the basis of the delivery slip. Maschinenfabrik Reinhausen GmbH 2021 018/10 EN OF 100 23 5 Mounting 5 Mounting DANGER Electric shock! An energized transformer could cause death or serious injuries. ► Switch off transformer on high and low-voltage side. ► Lock transformer to prevent unintentional restart. ► Ensure that everything is de-energized. ► Visibly connect all transformer terminals to ground (grounding leads, grounding disconnectors) and short circuit them. ► Cover or cordon off adjacent energized parts. DANGER Electric shock! Working on the on-load tap-changer when on-load tap-changer components are energized can lead to death or serious injuries. ► De-energize all auxiliary circuits, such as the tap-change supervisory de- vice, pressure relief device, pressure monitoring device. ► Make sure that everything is de-energized. NOTICE Damage to the oil filter unit! The oil filter unit will become damaged if it is dried. ► Never dry the oil filter unit. 5.1 Attaching the oil filter unit and control cabinet to the transformer This section describes how to attach the oil filter unit and control cabinet (if present) to the transformer. Attaching the oil filter unit to the transformer NOTICE Damage to the oil filter unit! Pipes that subject the oil filter unit to mechanical stress can damage the oil filter unit. ► Route and connect the pipes such that they do not subject the oil filter unit to any mechanical stress. ► Do not use the pipes as climbing aids. 24 OF 100 018/10 EN Maschinenfabrik Reinhausen GmbH 2021 5 Mounting Figure 4: Overview of oil filter unit 1 Return flange 2 Stop-cock 3 Return pipe 4 Transformer 5 Pipe connection on the on-load 6 Pipe connection on the on-load tap-changer head tap-changer head 7 On-load tap-changer 8 Drain valve 9 Feed pipe 10 Stop-cock 11 Feed flange 12 Oil filter unit 1. Rinse the pipes with dry oil before attaching them. The insides of the pipes must be completely clean and free of rust, cinders, etc. Maschinenfabrik Reinhausen GmbH 2021 018/10 EN OF 100 25 5 Mounting 2. Attach 1 oil filter unit to the transformer tank per on-load tap-changer switching column. When doing so, observe the differences in height needed between the individual components. Ensure that there is an addi- tional 0.6 m of clear space above the oil filter unit for changing the filter. Figure 5: Necessary height differences 3. Mount 1 stop-cock (not included in the scope of delivery) each on the feed flange and return flange. 4. Connect pipes with a pipe diameter of 1" for feed and return to the oil filter unit and on-load tap-changer head. The pipe connections on the on-load tap-changer head are described in the on-load tap-changer installation and commissioning instructions. Attaching the control cabinet to the transformer ► Attach the control cabinet to the transformer such that you can actuate control elements such as handles and push buttons at a height of 0.2… 2 m above the floor space of the switchgear assembly. 26 OF 100 018/10 EN Maschinenfabrik Reinhausen GmbH 2021 5 Mounting 5.2 Electrically connecting the oil filter unit and control cabinet Electrically connecting the oil filter unit and control cabinet The electrical connection of the motor-drive unit is described in the motor- drive unit operating instructions. The control cabinet may only be connected to circuits that are equipped with an external and all-pole isolating device as close to the control cabinet as possible so that it can be fully de-energized if required (service, maintenance etc.). Furthermore, a control cabinet without its own overcurrent protective device may only be connected to circuits that are equipped with an external over- current protective device. The protective device must ensure protection against indirect touching. The protection recommended by Maschinenfabrik Reinhausen GmbH close to the control cabinet is 1.6 A C (3.0 A C is to be used in a heating circuit with additional heating and supply voltage < 127 V AC/DC). This is to be verified after installation by carrying out a measure- ment. Suitable equipment includes isolating devices in accordance with IEC 60947-1 and IEC 60947-3 (e.g. circuit breakers). When selecting the cir- cuit breaker type, the properties of the relevant circuits (voltage, maximum currents) must be observed. The following should also be noted during in- stallation: ▪ It must be easy for the operator to access the isolating device ▪ The isolating device must be labeled for the device and circuits to be iso- lated ▪ The isolating device may not be a part of the power line ▪ The isolating device may not interrupt the main protective conductor Unless specified otherwise, the connections for the supply circuits must have a conductor cross-section of at least 2.5 mm2 (14 AWG). Check applicable standards and directives to ensure that the specified minimum cross-section of the supply line is sufficient. The voltage supply for the control cabinet must be able to provide 5…7 times the nominal operating current of the motor-drive unit for one second. A maximum voltage tolerance of -20…+10% of the nominal voltage must be observed to avoid damage to the control cabinet. To electrically connect the oil filter unit and control cabinet, proceed as fol- lows: 1. Switch off the voltage supply. 2. Secure the voltage supply to prevent an unintentional restart. 3. Ensure that everything is de-energized. Maschinenfabrik Reinhausen GmbH 2021 018/10 EN OF 100 27 5 Mounting 4. Visibly ground and short-circuit the oil filter unit and control cabinet. Figure 6: Grounding screw on the oil filter unit Figure 7: Grounding screw on the control cabinet 5. Ground all flanges in the pipe system using 4 contact washers per flange with a threaded screw connection or using 8 contact washers per flange with push-through connections with a contact nut. The contact washers are locking devices and ensure a proper metallic contact. 6. Cover or cordon off adjacent energized parts. 28 OF 100 018/10 EN Maschinenfabrik Reinhausen GmbH 2021 5 Mounting 7. Electrically connect the pressure switch and temperature switch / rod- type thermostat (if installed) in accordance with the connection dia- gram provided. Figure 8: Pressure switch/temperature switch Maschinenfabrik Reinhausen GmbH 2021 018/10 EN OF 100 29 5 Mounting 8. Remove the cover from the terminal box (3 bolts M6x20, wrench size 10) and connect the oil filter unit to the motor-drive unit or control cabinet in accordance with the connection diagram provided. Figure 9: Oil filter unit voltage supply 9. Secure the cover with gasket (3 M6x20 bolts, wrench size 10, tightening torque 4 Nm). 10. Connect the control cabinet to the voltage supply in accordance with the connection diagram provided. Checking electrical connection DANGER Electric shock! Danger of death due to live components in the device. ► Never touch live components when the device is energized. ► Only actuate the fuse, motor protective switch and rotary switch S30. Once the oil filter unit has been electrically connected, check that the oil filter unit and controller function correctly: 1. Open the motor-drive unit or control cabinet and supply with voltage. 2. Engage motor protective switch. 3. Set rotary switch S30 to ON. ð The oil filter unit starts up. 30 OF 100 018/10 EN Maschinenfabrik Reinhausen GmbH 2021 5 Mounting 4. Set rotary switch S30 to OFF. ð The oil filter unit switches off. 5. Close the motor-drive unit or control cabinet. ð The check has been completed. Maschinenfabrik Reinhausen GmbH 2021 018/10 EN OF 100 31 6 Commissioning 6 Commissioning 6.1 Time switch When using the integrated time switch (special version) the oil filter unit is also activated for a daily pump operating time of 2 hours, regardless of on- load tap-changer tap-change operations. The run time is preset at the fac- tory to run from midnight to 2.00 a.m. ► Set the time switch to local time. 6.2 Inserting the filter cartridge and filling the oil filter unit with oil NOTICE Damage to combined filter cartridge! The combined filter cartridge's drying agent is very hygroscopic. Moisture absorbed from the surrounding air will damage the combined filter cartridge. ► Only remove the combined filter cartridge from its transport container and install it in the pump unit immediately prior to commissioning the trans- former. NOTICE Damage to the oil filter unit! Some of the oil filter unit components are not vacuum proof. ► Keep stop-cocks closed during the entire oil filling procedure (vacuum creation and oil filling). ► Open stop-cocks after the oil filling procedure is completed. The dielectric strength of the insulating fluid must be ≥ 60 kV/2.5 mm (mea- sured in accordance with IEC 60156) and the water content must be ≤ 12 ppm (measured in accordance with IEC 60814). 1. Close the stop-cocks on the feed flange and return flange. 2. Fill the on-load tap-changer oil compartment and the feed pipe with insu- lating fluid. 3. Remove the return flange from the stop-cock. 4. Remove 6 bolts (M10, wrench size 17) and 2 lifting eye bolts (M10) from the oil filter unit cover. 5. Remove the cover with o-ring. 6. Remove the filter cartridge from the packaging. 7. Hook the filter cartridge into the receiving flange of the oil filter unit. The filter cartridge will be centered automatically by pressure when the cover is closed. 8. Fill the oil filter unit with insulating fluid. 9. Attach the cover with existing o-ring using 6 bolts (M10, wrench site 17, tightening torque 30 Nm) and 2 lifting eye bolts (M10, tightening torque 30 Nm). 32 OF 100 018/10 EN Maschinenfabrik Reinhausen GmbH 2021 6 Commissioning 10. Affix the return flange to the stop-cock. 11. Open the stop-cocks on the feed flange and return flange. 12. Fill the return pipe and the on-load tap-changer oil conservator with insu- lating fluid. 13. Vent the oil filter unit via the vent screw on the return flange. Figure 10: Return flange vent screw 14. Remove the screw cap on air-vent valve E1 on the on-load tap-changer head cover. Figure 11: Screw cap Maschinenfabrik Reinhausen GmbH 2021 018/10 EN OF 100 33 6 Commissioning 15. Use screwdriver to lift valve tappet on air-vent valve E1 and bleed on- load tap-changer head. Figure 12: Valve tappet 16. Seal air-vent valve E1 with screw cap (tightening torque 10 Nm). 17. Vent the feed pipe connection (suction pipe connection) on the on-load tap-changer head. Figure 13: Feed pipe connection 18. WARNING! Danger of explosion due to impermissible quantity of in- sulating fluid in the on-load tap-changer oil conservator. Ensure that the insulating fluid level in the oil conservator is between the “Minimum” and “Maximum” marks. 6.3 Function test DANGER Electric shock! Danger of death due to live components in the device. ► Never touch live components when the device is energized. ► Only actuate the fuse, motor protective switch and rotary switch S30. 34 OF 100 018/10 EN Maschinenfabrik Reinhausen GmbH 2021 6 Commissioning Once the filter cartridge has been installed, check that the oil filter unit is functioning correctly: 1. Supply the motor-drive unit and control cabinet with voltage. 2. Switch on the motor-drive unit and control cabinet using the miniature cir- cuit breakers and motor protective switch. 3. Set rotary switch S30 to ON. ð The oil filter unit will start up. 4. Close the stop-cock on the return flange. ð The pressure in the oil filter unit will increase. If the pressure does not increase, check the phase sequence of the motor voltage at the con- nection of the oil filter unit: U-V-W, clockwise. In the event of a deviating phase sequence, the motor (3 AC) will not start due to the return stop in the anti-friction bearings. ð When the pressure reaches 3.6 bar/0.36 MPa, the pressure switch will signal that a filter change is needed. ð Once the final pressure of approx. 4.2 bar/0.42 MPa is reached, set ro- tary switch S30 to OFF. The oil filter unit will no longer convey insulat- ing fluid. 5. Open the stop-cock on the return flange. 6. Switch the on-load tap-changer via the motor-drive unit. ð The oil filter unit will start up. Leave the oil filter unit running for 10 min. 7. Disconnect the motor-drive unit and control cabinet from the supply volt- age. ð The oil filter unit will switch off. 8. Vent the oil filter unit, on-load tap-changer head and pipe connection on the on-load tap-changer head. 9. Set rotary switch S30 to ON. ð The oil filter unit will start up. Leave the oil filter unit running for 60 min. ð The function test is complete. 6.4 Commissioning the transformer The procedure when commissioning the transformer depends on the filter cartridge installed in the oil filter unit. Commissioning the transformer – oil filter unit with paper filter cartridge If the oil filter unit is equipped with a paper filter unit, no further steps for commissioning the transformer are necessary. ► Commission the transformer in accordance with the on-load tap-changer installation and commissioning instructions. Maschinenfabrik Reinhausen GmbH 2021 018/10 EN OF 100 35 6 Commissioning Commissioning the transformer – oil filter unit with combined filter cartridge If the oil filter unit is equipped with a combined filter cartridge, you must check the dielectric strength and water content of the insulating fluid prior to commissioning the transformer. The limit values to be complied with as well as further commissioning information are described in the flowchart [►Sec- tion 11.7, Page 54] in the appendix. To drain insulating fluid from the oil filter unit and check it, proceed as fol- lows: 1. Switch on the motor-drive unit and control cabinet using the miniature cir- cuit breakers and motor protective switch. 2. Switch the on-load tap-changer via the motor-drive unit. ð The oil filter unit starts up. Leave the oil filter unit running for either 30 or 60 min in accordance with the set minimum run time of the pump [►Section 9, Page 44]. 3. Switch off the motor-drive unit and control cabinet using the miniature cir- cuit breakers. ð The oil filter unit switches off. 4. 30 minutes after switching off the oil filter unit, remove the securing ele- ment and screw cap from the drain valve. 5. Carefully open the drain valve and remove insulating fluid. 6. NOTICE! Damage to the on-load tap-changer due to insufficient insulat- ing fluid in the oil compartment. Close the drain valve, affix the securing element with warning sign to the drain valve and put the screw cap on. 7. Check the dielectric strength and water content of the insulating fluid in accordance with the flowchart [►Section 11.7, Page 54] and commis- sion the transformer in accordance with the on-load tap-changer installa- tion and commissioning instructions. 36 OF 100 018/10 EN Maschinenfabrik Reinhausen GmbH 2021 7 Inspecting and changing the filter cartridge 7 Inspecting and changing the filter cartridge 7.1 Inspection Monitoring for the oil filter unit is limited to a visual inspection of the seal tightness and a check of the insulating fluid. Interval Action Annually Visual inspection ▪ Check the oil filter unit seal tightness ▪ Check the seal tightness of the pipes Every 2 years When using the combined filter cartridge: Check the quality of the insulating fluid in accordance with the on-load tap-changer operating instructions. Change the com- bined filter cartridge [►Section 7.2, Page 37] when the value for water content or dielectric strength is not in compliance with that specified in the operating instructions. Table 6: Inspection plan 7.2 Changing the filter cartridge DANGER Electric shock! An energized transformer could cause death or serious injuries. ► Switch off transformer on high and low-voltage side. ► Lock transformer to prevent unintentional restart. ► Ensure that everything is de-energized. ► Visibly connect all transformer terminals to ground (grounding leads, grounding disconnectors) and short circuit them. ► Cover or cordon off adjacent energized parts. DANGER Electric shock! Working on the on-load tap-changer when on-load tap-changer components are energized can lead to death or serious injuries. ► De-energize all auxiliary circuits, such as the tap-change supervisory de- vice, pressure relief device, pressure monitoring device. ► Make sure that everything is de-energized. Maschinenfabrik Reinhausen GmbH 2021 018/10 EN OF 100 37 7 Inspecting and changing the filter cartridge WARNING Danger of explosion! Explosive gases in the oil compartment of the on-load tap-changer, trans- former, pipe system, oil conservator and at the dehydrating breather open- ing can deflagrate or explode and result in severe injury or death. ► Ensure that there are no ignition sources such as naked flames, hot sur- faces or sparks (e.g. caused by the build-up of static charge) in the trans- former's immediate surroundings and that none occur. ► Do not operate any electrical devices (e.g. risk of sparks from impact wrench). ► Only use conductive and grounded hoses, pipes, and pump equipment that are approved for flammable liquids. CAUTION Risk of burns! The insulating fluid, oil filter unit and pipes become hot during operation. If touched, there is a risk of burns. ► Always wear the personal protection equipment when changing the filter cartridge and draining the insulating fluid. ► Do not touch hot surfaces or insulating fluid. NOTICE Damage to combined filter cartridge! The combined filter cartridge's drying agent is very hygroscopic. Moisture absorbed from the surrounding air will damage the combined filter cartridge. ► Only remove the combined filter cartridge from its transport container and install it in the pump unit immediately prior to commissioning the trans- former. NOTICE Damage to the oil filter unit! Damage to the oil filter unit due to worn securing elements and gaskets. ► When changing the filter cartridge, replace the lock tabs, locking wash- ers, locknuts and gaskets with new securing elements and gaskets. ► Ensure that all screw connection points and screw elements are free of dirt, oil and grease. 38 OF 100 018/10 EN Maschinenfabrik Reinhausen GmbH 2021 7 Inspecting and changing the filter cartridge Criteria for replacement The criteria for replacing the filter cartridge depend on the filter cartridge used. Filter cartridge Replacing filter cartridge Paper filter cartridge Working pressure constantly at 3.6 bar/0.36 MPa or above during the factory-set minimum run time of the oil filter unit and temperature ≥ 20°C. The exact work- ing pressure is set on the pressure switch by the manu- facturer. Combined filter cartridge ▪ Working pressure constantly at 3.6 bar/0.36 MPa during the factory-set minimum run time of the oil fil- ter unit and temperature ≥ 20 °C. The exact working pressure is set on the pressure switch by the manu- facturer. or ▪ The value for water content or dielectric strength is not in compliance with that specified in the on-load tap-changer operating instructions. Table 7: Criteria for replacement Changing the filter cartridge 1. Close the stop-cocks on the feed flange and return flange. 2. Position a container for capturing the insulating fluid (approx. 2 l) below the drain valve. 3. Remove the securing element with warning sign on the drain valve and drain approx. 2 liters of insulating fluid. Maschinenfabrik Reinhausen GmbH 2021 018/10 EN OF 100 39 7 Inspecting and changing the filter cartridge 4. NOTICE! Damage to the on-load tap-changer due to insufficient insulat- ing fluid in the oil compartment. Close the drain valve, affix the securing element with warning sign to the drain valve and put the screw cap on. Figure 14: Drain valve with securing element 5. Remove the return flange from the stop-cock. 6. Remove 6 bolts (M10, wrench size 17) and 2 lifting eye bolts (M10) from the oil filter unit cover. 7. Remove the cover with o-ring. 8. Slowly pull the filter cartridge out of the oil filter unit using the handle. 9. NOTICE! The function of the filter cartridges will be impaired if they are stored for longer than 4 years. Remove the new Maschinenfabrik Rein- hausen GmbH filter cartridge that has been stored for a maximum of 4 years from the packaging. 10. Hook the new filter cartridge with new o-ring into the receiving flange of the oil filter unit. The filter cartridge will be centered automatically by pressure when the cover is closed. 11. Fill the oil filter unit with insulating fluid. 12. Attach the cover with the new o-ring using 6 bolts (M10, wrench site 17, tightening torque 30 Nm) and 2 lifting eye bolts (M10, tightening torque 30 Nm). 13. Affix the return flange to the stop-cock. 14. Open the stop-cocks on the feed flange and return flange. 40 OF 100 018/10 EN Maschinenfabrik Reinhausen GmbH 2021 7 Inspecting and changing the filter cartridge 15. Vent the oil filter unit via the vent screw on the return flange. Figure 15: Return flange vent screw 16. Vent the on-load tap-changer head via air-vent valve E1. 17. Vent the feed pipe connection (suction pipe connection) on the on-load tap-changer head. Figure 16: Feed pipe connection Maschinenfabrik Reinhausen GmbH 2021 018/10 EN OF 100 41 7 Inspecting and changing the filter cartridge 18. Perform function test [►Section 6.3, Page 34]. 19. WARNING! Danger of explosion due to impermissible quantity of in- sulating fluid in the on-load tap-changer oil conservator. Ensure that the insulating fluid level in the oil conservator is between the “Minimum” and “Maximum” marks. 20. Commission the transformer [►Section 6.4, Page 35]. 42 OF 100 018/10 EN Maschinenfabrik Reinhausen GmbH 2021 8 Disposal 8 Disposal A used oil filter must be disposed of in accordance with local environmental regulations. Maschinenfabrik Reinhausen GmbH 2021 018/10 EN OF 100 43 9 Technical data – standard version 9 Technical data – standard version Oil filter unit Basic material, exterior paint, version Steel, RAL 7033, outdoor version Dimensions (W x H x D) 410 x 925 x 406 mm Weight (dry) Approx. 75 kg Filling quantity Approx. 35 L Manometer Display range 0…6 bar/0...0.6 MPa Pressure switch SPDT two-way switch M16 (DIN 43650 A) AC 15: 0.5 A, 250 V DC 13: 12 W, 125 V Pump type Rotary pump Flow rate Approx. 65 L/min at 0.5 bar/0.05 MPa and 25°C insulating fluid tem- perature Flow rate Approx. 35 L/min at 3.6 bar/0.36 MPa and 25°C insulating fluid tem- perature Filter cartridge Paper filter cartridge or combined filter cartridge Motor Power: 1.1 W Voltage: 3 AC 230/400 V (other voltages on request) Nominal current: 4.10/2.35 A Frequency: 50 Hz or 60 Hz Synchronous speed: 3,000 rpm (50 Hz), 3,600 rpm (60 Hz) Rated voltage Un 230/400 V Rated operating voltage Ue 230/400 V Rated impulse voltage Uimp 4 kV Rated insulation voltage Ui 230/400 V Rated current of the switchgear assembly InA 2.9 A Rated current of a circuit Inc 2.9 A Rated current capacity Ipk 25 kA Rated load factor RDF 1 Ambient temperature in operation 0°C…+80°C Temperature of the insulating fluid in operation 0°C…+115°C Storage temperature -40°C…+80°C Factory-set minimum run time after an on-load OILTAP® V/M/MS: 30 min tap-change OILTAP® R/RM/T: 60 min OILTAP® G: 90 min 44 OF 100 018/10 EN Maschinenfabrik Reinhausen GmbH 2021 9 Technical data – standard version Control cabinet Protection against foreign objects and water IP55 Dimensions (W x H x D) 400 x 600 x 210 mm Paint RAL 7033 Weight Approx. 10.5 kg Voltage AC 230 V Heating Voltage: AC 230 V Power: 15 W Ambient temperature in operation -25 °C…+50 °C Storage temperature -40 °C…+70 °C Standard terminals in the control cabinet, manufacturer WAGO Type 880-901 880-907 2 Connection values 0.08...4 mm 0.08...4 mm2 AWG 28...12 AWG 28...12 800 V/25 A 25 A Width 5 mm 5 mm Color Gray Yellow/green Terminal type Line-up terminal Grounding terminal Standard terminals in the control cabinet, manufacturer Phoenix Contact Type OTTA 2,5 OTTA 6 2 Connection values 0.1...2.5 mm 0.1...6 mm2 AWG 22...14 AWG 22...10 800 V/24 A 800 V/41 A Width 9 mm 11 mm Color Gray Gray Terminal type Line-up terminal Line-up terminal Standard terminals in the control cabinet, manufacturer Phoenix Contact Type UK 5 N UK 10 N Connection values 0.2...4 mm2 0.5...10 mm2 AWG 24...10 AWG 20...6 800 V/41 A 800 V/76 A Width 6.2 mm 10.2 mm Color Gray Gray Terminal type Line-up terminal Line-up terminal Maschinenfabrik Reinhausen GmbH 2021 018/10 EN OF 100 45 10 Special models 10 Special models The control cabinet and the oil filter unit motor are available in various oper- ating voltages on request. 46 OF 100 018/10 EN Maschinenfabrik Reinhausen GmbH 2021 11 Drawings 11 Drawings Maschinenfabrik Reinhausen GmbH 2021 018/10 EN OF 100 47 RETURN PIPE BLEEDER SCREW THE CONNECTING FLANGE IS SUPPLIED WITH AN O-RING. PRESSURE SWITCH (FLAT GASKET ø114xø40x2 TYPE "KLINGER-SIL C-400" IS ALSO PERMITTED) MANOMETER prohibited. Offenders will be held liable for the payment of damages. All rights reserved in the event of the grant of a patent, utility model or design. O-RING The reproduction, distribution and utilization of this document as well as the communication of its contents to others without explicid authorization is 400854:00 M16 x 1,5 (44,2 - 5,7 FP) (CABLE-ø 5… 8) VIEW X M 20 x 1,5 O 325 (CABLE-ø 8… 15) ACHTUNG ! Die mit rotem Sicherungs- lack gesicherten Verschraubungen dürfen GROUND SCREW nicht gelöst werden. ATTENTION ! Do not unscrew any screw joint secured with red locking paint. M12 x 16 1 Demontage der Druckschalter-Manometer-Einheit DISASSEMBLY OF PRESSURE SWITCH / PRESSURE GAUGE UNIT.Lösen UNSCREW 2 Wiedermontage der Druckschalter-Manometer- FILTER CARTRIDGE: THE FILTER CARTRIDGE (PAPER OR COMBINED FILTER)

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