1. Introduction
This manual provides essential information for the safe and efficient installation, operation, and maintenance of the REPORSHOP Wilo RS25/6-3P Circulation Pump. Please read these instructions carefully before installation and use, and retain this manual for future reference. This pump is designed for circulating water in heating systems and similar applications.
2. Safety Instructions
- Electrical Safety: Installation and electrical connections must be performed by a qualified electrician in accordance with local and national electrical codes. Ensure the power supply is disconnected before any installation or maintenance work.
- Water Temperature: The pump is suitable for operating temperatures up to 110°C. Ensure the system temperature does not exceed this limit.
- Pressure: The maximum operating pressure is PN10. Do not exceed this pressure.
- Handling: The pump is heavy (approximately 2.17 kg). Use appropriate lifting techniques to prevent injury.
- Environment: Do not expose the pump to freezing temperatures below -10°C or direct weather conditions unless specifically designed for such use.
- Modifications: Do not modify the pump or its components. Unauthorized modifications can lead to malfunction, damage, and void the warranty.
3. Product Description and Components
The REPORSHOP Wilo RS25/6-3P is a maintenance-free glandless circulator pump designed for direct pipe mounting. It features a blockage-proof motor and a 3-speed manual override for flexible operation. The pump housing is made of cast iron, the impeller from glass-fiber reinforced plastic, and the shaft from chrome steel with carbon bearings.
Figure 1: Front view of the REPORSHOP Wilo RS25/6-3P Circulation Pump with its electrical box.
Figure 2: Side view of the REPORSHOP Wilo RS25/6-3P Circulation Pump, showing the pipe connection points.
Figure 3: Technical drawing illustrating the dimensions and connection points of the pump.
4. Specifications
| Model Number | RS25/6-3P (Internal: IB16BO03) |
| Part Number | RE280000001 |
| Product Dimensions (L x W x H) | 25.4 x 12.7 x 25.4 cm |
| Item Weight | 2.17 kg |
| Voltage | 1~230V |
| Frequency | 50Hz |
| Shaft Length | 130 mm |
| Pipe/Thread Connection | Rp 1 / G 1½ (1 1/2”) |
| Screw Distance | 70 x 70 mm |
| Operating Pressure (Nominal) | PN10 |
| Operating Temperature (Max) | 110 °C |
| Minimum Operating Temperature | -10 °C |
| Power Consumption P1 (Max) | 0.030 - 0.085 kW |
| R.p.m. (Max) | 1900 - 2550 1/min |
| Capacitor | 2.6 µF |
| Protection Class | IP44 |
| Thermal Class | TF95 |
| Speed I (A / W) | 0.20 A / 46 W |
| Speed II (A / W) | 0.30 A / 67 W |
| Speed III (A / W) | 0.40 A / 93 W |
5. Setup and Installation
Installation of the REPORSHOP Wilo RS25/6-3P Circulation Pump should only be carried out by qualified personnel (e.g., a licensed plumber or HVAC technician) to ensure proper function and safety.
5.1 Pre-Installation Checks
- Verify that the pump specifications match your system requirements (voltage, pipe size, pressure, temperature).
- Ensure the installation location provides adequate space for maintenance and ventilation.
- Confirm the system is drained and depressurized before beginning installation.
5.2 Mounting the Pump
- The pump is designed for direct pipe mounting. Ensure the pipework is adequately supported to prevent strain on the pump.
- Install the pump in a horizontal position with the motor shaft horizontal to prevent air pockets and ensure proper lubrication.
- Use appropriate pipe fittings and seals. Nuts are recommended for secure connections. The pump is supplied without fittings.
- Ensure the flow direction arrow on the pump body aligns with the system's flow direction.
5.3 Electrical Connection
- All electrical work must comply with local regulations.
- Connect the pump to a 1~230V, 50Hz power supply.
- Ensure proper grounding.
- The pump has an IP44 protection rating, meaning it is protected against solid objects over 1mm and splashing water. However, avoid direct water spray.
6. Operating Instructions
The Wilo RS25/6-3P pump features a 3-speed manual override, allowing you to adjust the pump's performance to match your system's needs.
6.1 Initial Start-up
- After installation, slowly fill the system with water and vent any air from the system. The pump is designed to be blockage-proof, but proper venting is crucial for optimal performance.
- Check for any leaks at the pipe connections.
- Restore power to the pump.
- Select the desired speed setting using the manual override switch on the pump. Start with a lower speed and increase if more circulation is required.
6.2 Speed Settings
The pump offers three speed settings:
- Speed I (Low): For minimal circulation, lower power consumption (46 W).
- Speed II (Medium): Balanced performance (67 W).
- Speed III (High): Maximum circulation, higher power consumption (93 W).
Adjust the speed according to the heating demand and system design. Lower speeds consume less energy.
7. Maintenance
The REPORSHOP Wilo RS25/6-3P is a maintenance-free glandless circulator pump, meaning it does not require regular lubrication or gland packing adjustments.
7.1 Routine Checks
- Periodically inspect the pump for any signs of leaks, unusual noises, or vibrations.
- Ensure the electrical connections are secure and free from corrosion.
- Check the system pressure and temperature to ensure they remain within the pump's operating limits.
7.2 Cleaning
Keep the exterior of the pump clean and free from dust and debris to ensure proper heat dissipation.
8. Troubleshooting
Before attempting any troubleshooting, always disconnect the power supply to the pump.
| Problem | Possible Cause | Solution |
|---|---|---|
| Pump does not start | No power supply Motor blockage Incorrect wiring | Check power connection and circuit breaker Inspect for debris in impeller area (after disconnecting power) Verify wiring with a qualified electrician |
| Pump runs but no circulation | Air in system Closed valves Impeller blockage | Vent the system thoroughly Ensure all necessary valves are open Inspect for debris in impeller area (after disconnecting power) |
| Unusual noise or vibration | Air in system Loose mounting Foreign object in pump | Vent the system Check and tighten mounting bolts Inspect pump interior (after disconnecting power) |
| Leaks at connections | Improperly tightened fittings Damaged seals | Tighten connections (do not overtighten) Replace seals/gaskets |
If problems persist after attempting these solutions, contact a qualified technician or the manufacturer's support.
9. Warranty and Support
For warranty information, please refer to the terms and conditions provided at the time of purchase or contact your retailer. Keep your proof of purchase for any warranty claims.
For technical support or inquiries, please contact REPORSHOP customer service or your local distributor. Provide the model number (RS25/6-3P) and any relevant details about your issue when seeking assistance.