The duration of the warranty period is stipulated damage. To clearly identify them for personnel, in the “General Terms and Conditions”. the instructions and safety instructions are dis- Any deviations must be contractually agreed! tinguished as follows: WILO SE 04/2021 DIN A4...
Damage to electrical equipment, cables and tion, the technician must have basic knowledge insulation of mechanical engineering. • Tools and other objects should only be kept in their designated places so that safe operation is ensured. Installation and operating instructions Wilo-Rexa NORM...
The hydraulics must always be earthed. In a standard system, the hydraulics are earthed Each fluid differs in respect of composition, cor- through the motor’s connection to the mains. rosiveness, abrasiveness, dry matter content and in many other aspects. Generally, the pumps can WILO SE 04/2021 DIN A4...
The pump is manufactured with great care and is Bearing bracket with seal on the fluid and motor subject to constant quality controls. Trouble-free sides, as well as sealing chamber and leakage operation is guaranteed if the device is installed chamber for receiving fluid ingress through the and maintained correctly. Installation and operating instructions Wilo-Rexa NORM...
3.4. Operation with frequency converters Impeller shape V = vortex impeller Operation on a frequency converter is possible. C = single-channel impeller NOTICE M = multi-channel Also note all the information in the operating Size discharge connection e.g. 25 = DN 250 and maintenance manual for the motor! Performance indicator Characteristic curve number WILO SE 04/2021 DIN A4...
The following should be taken into consideration nance manual for the motor and the coupling! for storage: Installation and operating instructions Wilo-Rexa NORM...
NOTICE proof. Furthermore, the packaging must protect Note the requirements in the operating and the pump from damage during transportation. If you have any questions, please contact the Wilo maintenance manual for the motor! customer service! • The installation site must be clean, dry, frost-free 5.
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See chapter “Operating Fluid” (8.1.1) and “Filling Use of a hook for attachment is prohibited! quantities” (8.3.6)! Clean the screw plug (D+), renew the seal ring and screw it back in. Use of chains as lifting equipment prohibited Installation and operating instructions Wilo-Rexa NORM...
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RE 25.74E i.e. it may not be supported by the pump! RE 25.93D Fasten lifting equipment to the attachment NORM-M30.41 322 points on the baseplate and position the pump in NORM-M50.21 538 the planned location. WILO SE 04/2021 DIN A4...
Dismantle coupling spacer » see instructions Remove the lifting equipment and dismantle the from manufacturer attachment points from the motor. Keep the attachment points on the pump for dismantling Install attachment points on the motor » see instructions from manufacturer the motor later. Installation and operating instructions Wilo-Rexa NORM...
• Always keep this manual either at the pump or in Consult the Wilo customer service. a place specially reserved for it, where it is acces- sible for all operating personnel at all times. Pencil electrode for sealing chamber monitoring •...
See also the information in the operating and maintenance manual for the motor! Operation on a frequency converter is possible. The following parameters must be observed: The standard speed of the motor must not be • exceeded. • Continuous duty with a volume flow of Q <0.7 m/s (27 in/s) should be avoided. Installation and operating instructions Wilo-Rexa NORM...
Place the measuring point on the second meas- NOTICE uring point “M2”: laterally on the bearing housing Note that the residual fluid in the hydraulics (horizontal vibration) housing will escape during removal. Suitable The measured value may not exceed collector tanks should be positioned to collect 4.5 mm/s eff. (0.18 in/s). If the value is higher all of the escaping fluid! than this, consult the Wilo customer service. WILO SE 04/2021 DIN A4...
Any other work and/or alterations to the con- of EC Directive 75/439/EEC as well as in compli- struction must only be carried out by the Wilo ance with the provisions of sections 5a and 5b customer service! of the German Waste Act or the applicable local laws.
This must also be maintenance intervals must be shortened accord- disposed of properly. ingly. In this case, contact the Wilo customer service. When using the hydraulics under harsh conditions, we also recommend signing a mainte- 8.1. Operating fluid nance contract.
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The measured value may not exceed Carefully and slowly unscrew the screw plug (D-) 4.5 mm/s eff. (0.18 in/s). If the value is higher and allow the operating fluid to drain out. Dispose than this, consult the Wilo customer service. of the operating fluid in accordance with the requirements in the “Disposal” chapter. 8.3.4. Visual inspection of coupling Clean the screw plug (D-), renew the seal ring and Visual inspection of the coupling for wear and screw it back in.
Swap the 2 phases of the mains supply quantities of water in the leakage chamber, Impeller slowed by accumulation, clogging and/or please contact the Wilo customer service. solid matter, increased current consumption Switch off the hydraulics, secure them against being switched back on again and free the Fig.
Change the oil 10.2. Spare parts Defective pencil electrode cables Spare parts can be ordered from the Wilo Replace pencil electrode customer service. To avoid return queries and incorrect orders, the serial and/or article number Mechanical seal is defective must always be supplied.
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Local contact at www.wilo.com/contact WILO SE Wilopark 1 44263 Dortmund Germany T +49 (0)231 4102-0 F +49 (0)231 4102-7363 wilo@wilo.com Pioneering for You www.wilo.com...
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