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Operating Instructions Rotex,

Operating Instructions Rotex,

Product catalog summary

Introduction
The document provides comprehensive operating instructions for the Rotex 70/10/20 wastewater pumps, emphasizing the necessity of reading the manual thoroughly before installation, electrical connection, and commissioning. Compliance with additional operating instructions for individual components is also required.

EC Declaration of Conformity
The Rotex 70/10/20 pump unit complies with EU directives on machinery, electromagnetic compatibility, and low-voltage equipment, adhering to harmonized standards such as EN 809 and EN 292 for safety and performance.

General Information
The KSB pump is designed with state-of-the-art standards and undergoes continuous quality control. The manual provides essential information for reliable and efficient operation, emphasizing adherence to specified limit values for medium handled, capacity, speed, density, pressure, temperature, and motor rating.

Safety Instructions
Safety instructions are crucial during installation, operation, and maintenance. The manual must be read and understood by all personnel involved. Non-compliance can lead to hazards, forfeiture of damage claims, and failure of machine functions. Safety awareness and adherence to national accident prevention regulations are imperative.

Transport and Storage
The pump unit should be transported horizontally and stored vertically in a dry, dark, frost-proof room, secured to prevent toppling.

Product Description and Specifications
Rotex pumps are vertical, single-stage centrifugal pumps designed for light and heavy-duty applications. They are not suitable for abrasive, corrosive, combustible, or explosive media and are equipped with an automatic level control system.

Assembly and Installation
Installation must comply with safety regulations, including electrical standards. The pump should be installed on solid ground, ensuring the float can move freely. The direction of rotation must be verified for three-phase motors.

Pipeline Specifications and Installation
Pipelines should match the pump nozzles and be adequately supported. The pump should not be used as an anchorage point, and thermal expansions must be compensated to avoid excessive forces that could cause leaks. A non-return valve is necessary for automatic drainage, and discharge lines should be positioned above the backwash level.

Power Supply Connection
Ensure compliance with safety regulations for electrical connections. Rotex pumps come with a power cable and plug, ready for connection. Pumps without a plug must be connected by a trained electrician. The mains voltage must match the voltage on the nameplate, and recommended fusing is specified for different models.

Motor Protection
Rotex E motors are protected by an overcurrent circuit breaker, requiring manual reset. Rotex D motors have temperature switches that automatically reset after cooling. External protection equipment should ensure complete separation from the mains.

Direction of Rotation
Rotex E does not require rotation checks, while Rotex D requires verification of the mains phase sequence. Incorrect rotation can prevent the pump from reaching its duty point and may cause damage.

Level Control Switch
Rotex pumps include a level control switch for automatic operation. Rotex 70 uses a float switch, while Rotex 10/20 uses displacement weights. Proper setting of switching levels is crucial to prevent the pump from running dry.

Commissioning and Start-up
Ensure all installation and operational checks are completed before starting the pump. The pump should operate quietly and without vibrations. Leakage from the intermediate pipe is normal.

Operating Limits
The pump is not suitable for sewage or wastewater with coarse substances. It should handle chemically neutral wastewater without sand or faeces. Operating conditions, such as switching frequency and voltage, must be adhered to prevent damage.

Maintenance and Servicing
Regular checks improve reliability. Maintenance should be performed by authorized personnel, and pumps handling hazardous liquids must be decontaminated. An inspection contract is recommended.

Troubleshooting
Common issues include tripped circuit breakers, low voltage, and clogged pumps. Remedies involve resetting breakers, checking electrical connections, and cleaning components.

Technical Document Summary

Specifications and Issues
Defective radial bearing in the motor requires contacting KSB’s pump service. Impermissible air or gas content in the fluid pumped; consultation with KSB is advised. Handling of aggressive or abrasive mediums should be consulted with KSB.

Cautionary Note
Opening the pump unit within the warranty period without consulting the manufacturer will void any claims for damages.

Relevant Documentation
Exploded Views: Available on page 36. Dimension Drawings: Available on page 40. Electric Circuit Diagrams: Available on page 41.

Fitting the Level Control Device
Components such as the microswitch and thread are pre-fitted at the factory. Instructions provided for assembling the level control device, including threading and securing weights to determine pump start-up and switch-off levels. Ensure adequate play in the thread for proper microswitch actuation.

Recycling
Rotex pumps are made of materials that can be recycled separately.

Safety Standards
Pumps comply with the EC machinery directive 89/392/EEC, Annex IIA. Motors comply with the EC low-voltage directive 73/23/EEC.

Parts and Components
Detailed parts list provided for Rotex 70 and Rotex 10/20 models, including part numbers and designations.

Dimension and Weight Information
Dimensions and weights for various Rotex models are specified.

Electric Circuit Diagrams
Diagrams for Rotex E and Rotex D models include components like microswitches, plugs, overcurrent circuit breakers, and capacitors.

Catalog excerpts

Betriebsanleitung Rotex 70/10/20 2322.8-90 Schmutzwasserpumpen Waste Water Pumps Pompes pour eaux chargées Pompe per acque cariche Betriebsanleitung Diese Betriebsanleitung enthält wichtige Hinweise und Warnvermerke. Bitte vor Einbau, elektrischem Anschluß und Inbetriebnahme unbedingt lesen. Weitere Betriebsanleitungen, die Komponenten dieses Aggregates betreffen, sind zusätzlich zu berücksichtigen. Operating Instructions These operating instructions contain fundamental information and precautionary notes. Please read the manual thoroughly prior to installation of unit, electrical connection and commissioning. It is imperative to comply with all other operating instructions referring to components of individual units. Notice de service Cette notice de service contient toutes les informations et directives fondamentales. Avant toute mise en marche, branchement électrique et mise en service, lire impérativement ce document et se conformer aux instructions relatives aux composants de ce groupe. Istruzioni per l’esercizio Queste istruzioni per l’esercizio racchiudono importanti indicazioni ed avvertimenti. Preghiamo di leggerle prima del montaggio, del collegamento elettrico e della messa in marcia. Si deve inoltre tener conto delle altre istruzioni riguardanti le parti componenti del gruppo.

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Rotex 70/10/20 2 Konformitätserklärung / EC declaration of conformity / Déclaration CE de conformité / Dichiarazione CE di conformità Hiermit erklären wir, daß das Pumpenaggregat Herewith we declare that the pump unit Par la présente, nous déclarons que le groupe de pompe Con la presente si dichiara che l’elettropompa Rotex 70/10/20 folgenden einschlägigen Bestimmungen in der jeweils gültigen Fassung entspricht: complies with the following relevant provisions as applicable in their current version: correspond aux dispositions pertinentes suivantes dans la version respective en vigueur : è conforme...

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Caution Rotex 70/10/20 11 1 General This KSB pump has been developed in accordance with stateof- the-art standards; it is manufactured with utmost care and subject to continuous quality control. These operating instructions are intended to facilitate familiarisation with the pump and its designated use. The manual contains important information for reliable, proper and efficient operation. Compliance with the operating instructions is of vital importance to ensure reliability and a long service life of the pump and to avoid any risks. These operating instructions do not take into account local...

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Caution Caution Rotex 70/10/20 12 2.7 Unauthorised Modification and Manufacture of Spare Parts Modifications or alterations of the machine are only permitted after consultation with the manufacturer. Original spare parts and accessories authorised by themanufacturer ensure safety. The use of other parts can invalidate any liability of the manufacturer for consequential damage. 2.8 Impermissible Modes of Operation The warranty relating to the operating reliability and safety of the pump/unit supplied is only valid if themachine is used in accordancewith its designated use as described in chapter...

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Caution Caution Caution Caution Caution Caution Rotex 70/10/20 13 5 Assembly/Installation at Site 5.1 Safety Regulations F Your electrical installation must be in accordance with VDE 0100/IEC 364 standards; for example, the sockets must have earthing terminals. F The supplymains towhich thepumpis connectedmust be equipped with a highly sensitive earth leakage circuit breaker (<30 mA). F Do not operate the pump set in a swimming pool or pond as long as someone is bathing in it. The supply mains to which the pump is connected must be equipped with a highly sensitive earth leakage circuit breaker...

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Caution Caution Caution Caution Caution Rotex 70/10/20 14 5.5.2.2 Rotex D Themotor is protected by temperature switches installed in the motor winding which trip if the maximum permissible winding temperature is reached and restart automatically after the motor has cooled down. The external protection equipment should always have three poles and an interlocking device in order to ensure complete separation from themains; this equipment will also prevent the unit from running on two phases only. 5.5.3 Checking the Direction of Rotation Rotex E The direction of rotation of Rotex E need not be checked,...

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Caution Caution Caution Caution Caution Caution Caution Rotex 70/10/20 15 6.1.2 Rotex 10/20 Rotex 10/20 pumps are suitable for pumping condensate with a temperature of up to 90 .C from unpressurised tanks. The tanks should be equipped with vent pipes having twice or at least the same nominal diameter as the inlet pipes. When pumping liquids with a temperature above 70 .C, a minimum head of 8metres (pressure gauge reading)must be ensured to avoid cavitation and thus premature wear on the bearings. Whenthe pump is used for pumping condensate, the switch-off level should be at least 400 mm. The...

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Caution Rotex 70/10/20 16 7.4.2 Rotex 10/20 For cleaning the discharge casing (107) undo the screws (901) and remove the discharge casing. 7.5 Reassembly Clean all dismantled components and check them for signs of wear.Damaged orworn components are to be replaced by new ones.Make sure that the seal faces are clean and that the gasket (on Rotex 70) is properly fitted. It is recommended to use new seal elements whenever the pump is reassembled. Reassembly is effected in reverse order to dismantling. 7.6 Spare Parts Stock It is not necessary to keep spare parts on stock. In the case of damage please...

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Increased wear on the bearing bushes Vibrations and noise during pump operation Excessive current/power input Pump is running, but does not deliver Pump delivers insufficient flow rate Pump does not start up Rotex 70/10/20 17 8 Trouble-shooting Causes Remedy The pump pressure must be released before attempting to remedy faults on parts which are subjected to pressure. Disconnect the pump from the power supply. F F The overcurrent circuit breaker has tripped the unit (for E). Press reset button on the terminal box. F F The temperature switch monitoring the winding temperature has tripped the unit...

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