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Summary of Contents for Wilo Wilo-Rexa PRO-S
- Page 1 Pioneering for You Wilo-Rexa PRO-S en Installation and operating instructions · 6092606 • Ed.01/2022-03...
- Page 2 Rexa PRO-S http://qr.wilo.com/415 Rexa PRO https://qr.wilo.com/772...
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Page 3: Table Of Contents
Personnel qualifications............. 21 Operator responsibilities............ 21 Direction of rotation check for three-phase AC motor .................... 22 Operation in an explosive atmosphere ...... 22 Before switching on............ 23 Switching on and off ............ 23 During operation .............. 23 8 Shut-down/dismantling............ 24 Installation and operating instructions • Wilo-Rexa PRO-S • Ed.01/2022-03... -
Page 4: General Information
All rights reserved. Subject to change Wilo shall reserve the right to change the listed data without notice and shall not be liable for technical inaccuracies and/or omissions. The illustrations used may differ from the ori- ginal and are intended as an example representation of the device. - Page 5 These instructions use the following symbols: Danger caused by electric voltage Danger of bacterial infection Danger of explosion Danger caused by explosive atmosphere General warning symbol Warning – risk of cutting injuries Warning – hot surfaces Installation and operating instructions • Wilo-Rexa PRO-S • Ed.01/2022-03...
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Page 6: Personnel Qualifications
Protective equipment: Cleaning work • Protective gloves (EN ISO 374-1): 4X42C + Type A (uvex pro- tector chemical NK2725B) • Safety goggles (EN 166): (uvex skyguard NT) Labelling frame: W 166 34 F CE – Installation and operating instructions • Wilo-Rexa PRO-S • Ed.01/2022-03... -
Page 7: Electrical Work
The branded products in the parentheses constitute non-binding suggestions. Similar products from other brands can also be used. Adherence to the standards mentioned is required. WILO SE does not assume any liability for the adherence of the aforementioned products to the corresponding standards. Electrical work •... -
Page 8: Fluids Hazardous To Health
Locally applicable laws and regulations on work safety and ac- cident prevention must be complied with. • Disconnect device from the mains and secure it against being switched on again without authorisation. • All rotating parts must stop. Installation and operating instructions • Wilo-Rexa PRO-S • Ed.01/2022-03... -
Page 9: 2.10 During Operation
Only original parts of the manufacturer may be used. The use of any non-original parts releases the manufacturer from any liab- ility. • Collect any leakage of fluid and operating fluid immediately and dispose of it according to the locally applicable guidelines. Installation and operating instructions • Wilo-Rexa PRO-S • Ed.01/2022-03... -
Page 10: 2.13 Operating Fluid
After receiving the shipment, check it immediately for defects (damage, completeness). Delivery • Defects must be noted on the freight documentation. • Defects must be notified to the transport company or the manufacturer on the day of receipt of shipment. Installation and operating instructions • Wilo-Rexa PRO-S • Ed.01/2022-03... -
Page 11: Transport
Secure the pump against falling over and slipping! • Store the pump for a maximum of one year. Consult the customer service before storing the device for more than one year. Installation and operating instructions • Wilo-Rexa PRO-S • Ed.01/2022-03... -
Page 12: Application/Use
Hydraulics housing and impeller made of grey cast iron; macer- ator made of hardened cutting steel. Surface-cooled 3~ motor with thermal motor monitor- ing and moisture probe. Oil-filled sealing chamber with two mechanical seals. Motor housing Installation and operating instructions • Wilo-Rexa PRO-S • Ed.01/2022-03... -
Page 13: Materials
= calendar week Type key Example: Rexa PRO-S03-112A/21T011X540/O Rexa Submersible sewage pump Series Macerator Nominal diameter of the discharge connection: DN 32/40 Hydraulics type Material version: Standard No. of poles IE class Installation and operating instructions • Wilo-Rexa PRO-S • Ed.01/2022-03... -
Page 14: Scope Of Delivery
Switchgear, relays and plugs Installation and electrical con- nection • Electrical work: qualified electrician Personnel qualifications Person with appropriate technical training, knowledge and experience who can identify and prevent electrical hazards. Installation and operating instructions • Wilo-Rexa PRO-S • Ed.01/2022-03... -
Page 15: Installation Types
Avoid air intake into the fluid. Use baffles or deflector plates at the inlet. Install the ventilation systems! • Do not allow the pump to run dry! Avoid air pockets. Do not go below the minimum wa- ter level. Installation of dry-running protection is recommended! Installation and operating instructions • Wilo-Rexa PRO-S • Ed.01/2022-03... - Page 16 Loosen the lifting gear from the lifting equipment and secure it against falling at the pump chamber outlet. Correctly route the connection cables and lead them out of the pump chamber. CAU- TION! Do not damage the connection cables! - No chafing or kinking. Installation and operating instructions • Wilo-Rexa PRO-S • Ed.01/2022-03...
- Page 17 Alternatively, the dry-running protection can also work as a stand-alone shut- off device. Depending on the system security, the pump can be restarted automatically or manually. Installation of dry-running protection is recommended for optimum operational reliability. Installation and operating instructions • Wilo-Rexa PRO-S • Ed.01/2022-03...
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Page 18: Electrical Connection
If people can come into contact with the device and conductive fluids, install a residual- current device (RCD). • Check the insulation resistance of the motor winding. 6.5.2 Maintenance tasks • Check the resistance of the temperature sensors. Installation and operating instructions • Wilo-Rexa PRO-S • Ed.01/2022-03... - Page 19 The connection must be made via an evaluation relay (e.g. “NIV 101/A”). – Sensor: Electrode – Connection values: max. 250 V(AC), 2.5 A, cos phi = 1 – Threshold: 30 kOhm – Triggering status: If the threshold value is reached, switch off the pump! Installation and operating instructions • Wilo-Rexa PRO-S • Ed.01/2022-03...
- Page 20 If the low temperature threshold is reached, switch off the pump. The pump can be re- started automatically. • If the high temperature threshold is reached, switch off the pump. Restarting must be carried out manually! Installation and operating instructions • Wilo-Rexa PRO-S • Ed.01/2022-03...
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Page 21: Commissioning
Operation/control: Operating personnel, instructed in the functioning of the complete Personnel qualifications system • Providing installation and operating instructions by the pump or at a place specially re- Operator responsibilities served for it. Installation and operating instructions • Wilo-Rexa PRO-S • Ed.01/2022-03... -
Page 22: Direction Of Rotation Check For Three-Phase Ac Motor
The pumps are suitable for operation in potentially explosive atmospheres: • Protection class: Explosionproof • Category: Class I, Division 1 Notice: If the cabling is carried out according to Division 1, installation in Class I, Division 2 is also permitted. Installation and operating instructions • Wilo-Rexa PRO-S • Ed.01/2022-03... -
Page 23: Before Switching On
NOTICE Cleaning cloths and wipes can cause clogging in the macerator! To prevent cleaning cloths and wipes in the fluid, mechanically pre-clean the incoming fluid. Installation and operating instructions • Wilo-Rexa PRO-S • Ed.01/2022-03... -
Page 24: Shut-Down/Dismantling
The pump is deactivated, but remains installed. This ensures that the pump is always ready Shut-down for operation. ✓ Completely immerse the pump in the fluid to protect the pump from frost and ice. ✓ Minimum fluid temperature: +3 °C (+37 °F). Installation and operating instructions • Wilo-Rexa PRO-S • Ed.01/2022-03... -
Page 25: Removal
Safety goggles: uvex skyguard NT – Labelling frame: W 166 34 F CE – Labelling disc: 0-0.0* W1 FKN CE • Breathing protection: Half mask 3M series 6000 with filter 6055 A2 Installation and operating instructions • Wilo-Rexa PRO-S • Ed.01/2022-03... -
Page 26: Maintenance And Repair
Allow the pump to dry out. Maintenance and repair • Electrical work: qualified electrician Personnel qualifications Person with appropriate technical training, knowledge and experience who can identify and prevent electrical hazards. Installation and operating instructions • Wilo-Rexa PRO-S • Ed.01/2022-03... -
Page 27: Operator Responsibilities
Highly corrosive or abrasive fluids • Strongly gassing fluids • Operation at an unfavourable duty point • Pressure surges If there are harsh operating conditions, it is recommended to conclude a maintenance con- tract. Installation and operating instructions • Wilo-Rexa PRO-S • Ed.01/2022-03... -
Page 28: Maintenance Measures
Repair damaged coating. Order repair kits from the customer service. • If housings are worn out, consult the customer service! 9.5.5 Function test of the monitoring To test resistances, the pump must be cooled down to the ambient temperature! device Installation and operating instructions • Wilo-Rexa PRO-S • Ed.01/2022-03... - Page 29 Drain the operating fluid: Rotate the pump until the opening points downwards. Check the operating fluid: ⇒ Operating fluid clear: Operating fluid can be reused. Fig. 9: Sealing chamber: Oil change ⇒ Operating fluid contaminated (black): fill with new operating fluid. Installation and operating instructions • Wilo-Rexa PRO-S • Ed.01/2022-03...
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Page 30: Repairs
Clean the components thoroughly after dismantling. Mechanical screw locking device The mechanical screw locking device consists of two Nord-Lock wedge lock washers. The screw connection is secured by the clamping force. The Nord-Lock screw locking device Installation and operating instructions • Wilo-Rexa PRO-S • Ed.01/2022-03... -
Page 31: Faults, Causes And Remedies
• Demarcate and cordon off the working area. • If there are no persons in the working area, activate the pump. • If persons enter the working area, switch off the pump immediately. Installation and operating instructions • Wilo-Rexa PRO-S • Ed.01/2022-03... - Page 32 Fault: Pump starts, duty point is not reached Inlet clogged. ⇒ Check the inlet and remove clogging. Slide valves on the pressure side closed. ⇒ Completely open all gate valves. Hydraulics jammed. ⇒ Clean the hydraulics. Installation and operating instructions • Wilo-Rexa PRO-S • Ed.01/2022-03...
- Page 33 Operate the pump for a short period (max. 5 min.) without pencil electrode. Increased leakage when running in new mechanical seals. ⇒ Change the oil. Pencil electrode cable is defective. ⇒ Replace the pencil electrode. Mechanical seal is defective. ⇒ Inform customer service. Installation and operating instructions • Wilo-Rexa PRO-S • Ed.01/2022-03...
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Page 34: Spare Parts
Observe the locally applicable regulations! Please consult your local municipality, the nearest waste disposal site, or the dealer who sold the product to you for information on proper disposal. See www.wilo‑recycling.com for more information about recycling. Subject to change without prior notice! Appendix 13.1... -
Page 35: Frequency Converter Operation
Keep an adequate distance between main and control cable during routing. • Use shielded connection cables. Summary • Min./max. frequency during continuous duty: – Asynchronous motors: 30 Hz up to rated frequency (50 Hz or 60 Hz) Installation and operating instructions • Wilo-Rexa PRO-S • Ed.01/2022-03... -
Page 36: Ex Rating
Non-observance may lead to fatal injury due to explosion! Connection must always be carried out by a qualified electrician. • All monitoring devices outside the “spark-proof areas” must be connected via an in- trinsically safe circuit (e.g. Ex-i relay XR-4...). Installation and operating instructions • Wilo-Rexa PRO-S • Ed.01/2022-03... - Page 37 Do not exceed the rated current or rated speed of the motor. • It must be possible to connect the motor’s own temperature monitoring (bimetallic strip or PTC sensor). • If the temperature class is marked as T4/T3, temperature class T3 applies. Installation and operating instructions • Wilo-Rexa PRO-S • Ed.01/2022-03...
- Page 38 DANGER! Risk of explosion! A discharge can cause an explosion in explosive atmo- spheres! 13.3.6.2 Replacing the connection cable Changing the connection cable is strictly prohibited! 13.3.6.3 Changing the mechanical seal Changing the seal on the fluid and motor side is strictly prohibited! Installation and operating instructions • Wilo-Rexa PRO-S • Ed.01/2022-03...
- Page 40 Local contact at www.wilo.com/contact WILO SE Wilopark 1 44263 Dortmund Germany T +49 (0)231 4102-0 T +49 (0)231 4102-7363 wilo@wilo.com Pioneering for You www.wilo.com...
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