1. Product Overview
The Pedrollo UPm2/3-GE is a multi-stage submersible electric water pump designed for efficient and reliable operation with clean water. Its innovative patented technical solutions ensure consistent performance, even after long periods of inactivity. This pump is suitable for various applications including domestic, civil, and agricultural water supply systems, pressure boosting, and garden irrigation.
Image 1: Pedrollo UPm2/3-GE Multi-Stage Submersible Electric Water Pump. This image shows the main unit of the submersible pump, highlighting its compact cylindrical design and the power cable connection.
Key Features:
- Multi-stage submersible design: Ensures high efficiency and reliable water delivery.
- Independent floating impellers (patented): Prevents impeller seizing, even after extended periods of non-use.
- Double mechanical seals with oil chamber: Provides enhanced durability and protection against water ingress.
- Compact size: Approximately 20% more compact than previous designs.
- Reduced energy consumption: Optimized for energy efficiency.
- Raised suction port: Designed to prevent the passage of sand, leaves, and other external particles that could block the hydraulic section and limit performance.
- Integrated float switch: For automatic operation based on water levels.
2. Safety Information
Read all instructions carefully before installation and operation. Failure to follow these instructions may result in electric shock, fire, serious injury, or property damage.
- Electrical Safety: Ensure the power supply matches the pump's requirements (230V, 50Hz). Always disconnect power before performing any maintenance or installation. Use a ground fault circuit interrupter (GFCI) for electrical connections.
- Professional Installation: Electrical connections and initial setup should ideally be performed by a qualified electrician or technician.
- Water Quality: This pump is designed for clean water. Do not use it for flammable, corrosive, or abrasive liquids, or liquids with excessive solid content (maximum sand content 150 g/m³).
- Temperature Limits: Do not operate the pump with liquid temperatures exceeding +40 °C.
- Cable Protection: Do not pull or carry the pump by its power cable. Protect the cable from sharp objects, heat, and oil.
- Children and Pets: Keep children and pets away from the pump's operating area.
3. Setup and Installation
Proper installation is crucial for the pump's performance and longevity. Refer to the following guidelines:
3.1 Unpacking and Inspection
- Carefully remove the pump from its packaging.
- Inspect the pump for any visible damage that may have occurred during shipping. Do not install a damaged pump.
- Verify that all components, including the 20-meter power cable and float switch, are present.
3.2 Placement and Submersion
- The pump can be installed in both vertical and horizontal positions. Ensure it is placed on a stable, level surface to prevent movement during operation.
- The maximum submersion depth for this pump is 20 meters. Ensure the power cable is sufficiently long and securely routed to avoid tension or damage.
- Ensure the pump is fully submerged in the liquid to be pumped. The raised suction port helps prevent blockages, but avoid placing the pump directly on a muddy or sandy bottom if possible.
3.3 Electrical Connection
- Connect the pump to a single-phase 230V, 50Hz power supply.
- Always use a properly grounded outlet and a GFCI for protection.
- Ensure all electrical connections are watertight and protected from moisture.
3.4 Outlet Connection
- Connect a suitable pipe or hose to the pump's 1¼" outlet.
- Ensure all connections are tight to prevent leaks.
Image 2: Close-up of Pedrollo UPm2/3-GE pump components. This image provides a closer look at the pump's construction, potentially showing the outlet, power cable entry, or float switch attachment point.
4. Operating Instructions
The Pedrollo UPm2/3-GE pump is designed for continuous service (S1) and features an integrated float switch for automatic operation.
4.1 Initial Start-up
- Ensure the pump is correctly installed and fully submerged in water.
- Plug the pump into a grounded and GFCI-protected power outlet.
- The float switch will activate the pump automatically when the water level rises to a predetermined height and deactivate it when the water level drops.
4.2 Automatic Operation with Float Switch
- The float switch is a safety and convenience feature. It prevents the pump from running dry, which can cause damage.
- Adjust the float switch cable length to set the desired ON/OFF water levels. A longer cable loop will result in a wider operating range (higher ON level, lower OFF level).
- Ensure the float switch can move freely without obstruction.
4.3 Manual Operation (if applicable)
This model primarily operates automatically via the float switch. For specific manual override instructions, consult a qualified technician or the full manufacturer's manual if available.
5. Maintenance
Regular maintenance ensures optimal performance and extends the lifespan of your Pedrollo pump.
5.1 General Cleaning
- Periodically remove the pump from the water and inspect the suction port for any debris (sand, leaves, etc.) that may have accumulated despite the raised design. Clean as necessary.
- Ensure the float switch is clean and moves freely.
5.2 Winterization (for cold climates)
- In areas where temperatures drop below freezing, remove the pump from the water before winter.
- Clean the pump thoroughly and store it in a dry, frost-free location.
5.3 Impeller Inspection
- While the patented impellers are designed to prevent seizing, if you notice a significant drop in performance, it may be necessary to inspect the impellers for wear or blockages. This procedure should be performed by a qualified technician.
6. Troubleshooting
Before contacting support, review these common issues and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Pump does not start | No power; Float switch not activated; Motor overload; Blocked impeller | Check power supply and GFCI; Ensure water level is high enough for float switch; Reset thermal overload (if applicable); Disconnect power and check for blockages (professional service recommended) |
| Low flow or no water output | Partial blockage in suction or discharge; Air lock; Worn impeller | Check and clear blockages; Ensure pump is fully submerged and primed; Inspect impellers (professional service recommended) |
| Pump runs continuously | Float switch stuck or faulty; Leak in discharge line | Check float switch for free movement; Inspect discharge piping for leaks |
| Unusual noise or vibration | Debris in pump; Worn bearings; Dry running | Disconnect power and check for debris; Ensure pump is fully submerged; Contact professional service for bearing issues |
For issues not listed here or if troubleshooting steps do not resolve the problem, please contact a qualified service technician or Pedrollo customer support.
7. Specifications
| Specification | Value |
|---|---|
| Model | UPm2/3-GE |
| Brand | Pedrollo |
| Pump Diameter | 150 mm |
| Power Supply | Single-phase 230 V, 50 Hz |
| Power (kW / Hp) | 0.55 kW / 0.75 Hp |
| Liquid Type | Clean water |
| Max. Sand Content | 150 g/m³ |
| Flow Rate (Q L/min) | 10 - 80 L/min |
| Head (H meters) | 25 - 47 meters |
| Outlet Connection | 1¼" |
| Power Cable Length | 20 meters |
| Float Switch | Included |
| Pump Body Material | Stainless Steel AISI 304 |
| Impeller Material | Noryl |
| Max. Liquid Temperature | +40 °C |
| Max. Submersion Depth | 20 meters |
| Installation | Vertical and Horizontal |
| Service Type | Continuous S1 |
| Item Number | 48SP2115A1 |
8. Warranty and Support
For warranty information, please refer to the documentation provided with your purchase or contact the retailer. Pedrollo products are manufactured to high standards, and specific warranty terms may vary by region and seller.
If you require technical assistance, spare parts, or have questions not covered in this manual, please contact your authorized Pedrollo dealer or customer support. When contacting support, please have your pump's model number (UPm2/3-GE) and item number (48SP2115A1) readily available.