1. Introduction
This manual provides comprehensive instructions for the IBO NOVA 25-60/130 Class A high-efficiency circulation pump. It covers product overview, safety guidelines, installation, operation, maintenance, troubleshooting, and detailed technical specifications to ensure proper and safe use. Please read this manual thoroughly before installation and operation.
2. Safety Instructions
Always observe the following safety precautions to prevent personal injury and damage to the pump.
- Installation and maintenance must be performed by qualified personnel only.
- Ensure the power supply is disconnected before any installation, maintenance, or repair work.
- The pump must be properly grounded to prevent electric shock.
- Do not operate the pump without liquid. Dry running can cause severe damage.
- Protect the pump from freezing temperatures.
- Ensure all connections are watertight to prevent leaks.
- Do not exceed the maximum operating pressure and temperature specified in the technical data.
3. Product Overview
The IBO NOVA 25-60/130 is an electronic, low-energy circulation pump designed for heating and hot water systems. It features a permanent magnet motor and a differential pressure regulator for automatic power adjustment.
3.1 Key Features
- Class A energy efficiency.
- Equipped with a permanent magnet motor.
- Integrated differential pressure regulator for automatic power adjustment.
- 8 selectable operating modes.
- Maximum lift of 6 meters.
- Maximum flow rate of 55 liters per minute.
- Compact design with 130 mm connection distance.
- Digital display showing current energy consumption.
3.2 Included Components
- IBO NOVA 25-60/130 Circulation Pump
- Set of screw fittings with cable adapter
- Sealing gaskets
- Instruction Manual
3.3 Applications
The NOVA series circulation pump is suitable for the following systems:
- Constant temperature heating systems with variable flow.
- Heating systems with variable pipe temperature.
- Heating systems with night mode.
- Air conditioning systems.
- Industrial circulation systems.
- Central heating and domestic hot water systems.

Figure 1: Main view of the IBO NOVA 25-60/130 circulation pump, showing its compact design and robust construction.

Figure 2: Side view of the pump, highlighting the energy efficiency label (Class A) and the IBO branding.
4. Installation
Proper installation is crucial for the pump's efficient and safe operation. Refer to local regulations and standards.
4.1 Pre-Installation Checks
- Verify that the power supply matches the pump's requirements (220V-240V/50Hz).
- Ensure the installation location is protected from moisture, freezing, and excessive heat.
- Check that the piping system is clean and free of debris.
- Confirm that the system can be drained for installation and maintenance.
4.2 Mounting
- Mount the pump in a horizontal position with the motor shaft horizontal.
- Ensure sufficient space around the pump for ventilation and future maintenance.
- Use the provided screw fittings and gaskets to connect the pump to the piping system. Tighten connections securely to prevent leaks.
- Observe the flow direction arrow on the pump housing.
4.3 Electrical Connection
- Disconnect the main power supply before making any electrical connections.
- Connect the pump to a dedicated electrical circuit with appropriate overcurrent protection.
- Use the provided cable adapter for a secure and proper electrical connection.
- Ensure proper grounding according to local electrical codes.

Figure 3: View of the pump showing the threaded connection points for integration into the heating system.
5. Operating Instructions
The IBO NOVA 25-60/130 pump features an intuitive control panel for easy operation and mode selection.
5.1 Control Panel
The control panel is located on the top of the motor. It features a digital display that shows the current energy consumption (in Watts) and indicators for the selected operating mode. A single button allows cycling through the various modes.
5.2 Operating Modes
The pump offers 8 operating modes to optimize performance for different system requirements. These modes typically include:
- Constant Pressure Modes (CP1, CP2): Maintains a constant differential pressure regardless of flow rate.
- Proportional Pressure Modes (PP1, PP2): Adjusts differential pressure proportionally to the flow rate.
- Constant Speed Modes (I, II, III): Operates at a fixed speed, suitable for systems with stable flow requirements.
- Night Mode (ECO): Reduces pump speed and power consumption during periods of lower demand, typically at night.
To select a mode, press the button on the control panel repeatedly until the desired mode is indicated on the display.

Figure 4: Close-up of the pump's control panel, showing the digital display for power consumption and mode indicators.
6. Maintenance
The IBO NOVA 25-60/130 pump is designed for minimal maintenance. Regular checks can ensure long-term reliability.
- Annual Inspection: Check for any signs of leakage, unusual noises, or vibrations.
- System Flushing: Ensure the heating system is flushed periodically to prevent accumulation of sludge and debris, which can affect pump performance.
- Cleaning: Keep the exterior of the pump clean and free from dust and dirt to ensure proper heat dissipation.
- Winterization: If the system is shut down for an extended period in cold weather, ensure the pump and piping are drained to prevent freezing.
Always disconnect power before performing any maintenance.
7. Troubleshooting
This section provides solutions to common issues you might encounter.
| Problem | Possible Cause | Solution |
|---|---|---|
| Pump does not start | No power supply Air in pump Motor seized | Check electrical connections and circuit breaker Bleed the pump Contact qualified service personnel |
| Insufficient flow | Air in system Clogged filter/piping Incorrect operating mode | Bleed the system Clean filter/piping Select appropriate operating mode |
| Pump is noisy | Air in pump/system Cavitation Loose mounting | Bleed the pump/system Check system pressure, increase if too low Secure pump mounting bolts |
| Leakage | Loose connections Damaged gaskets | Tighten connections Replace gaskets |
8. Specifications
Detailed technical specifications for the IBO NOVA 25-60/130 circulation pump.
| Parameter | Value |
|---|---|
| Model | NOVA 25-60/130 |
| Power Supply | 1 x 230V +6%/-10%, 50 Hz |
| Motor Protection | No additional motor protection required |
| Protection Type | IP 44 |
| Insulation Class | F |
| Max. Relative Ambient Humidity | ≤ 95% |
| Max. Pressure in Central System | 1 MPa |
| Min. Suction Pressure (at 85°C) | 0.005 MPa |
| Min. Suction Pressure (at 90°C) | 0.028 MPa |
| Min. Suction Pressure (at 95°C) | 0.050 MPa |
| EMC Standards Compliance | EN61000-6-1; EN61000-6-3 |
| Sound Pressure of Running Pump | 43 dB (A) |
| Permissible Ambient Temperature | 0 ~ +40°C |
| Max. Heating Medium Temperature | TF 95 |
| Max. Pump Surface Warming | ≤ 110°C |
| Temperature Range of Pumped Liquid | 2 ~ +95°C |
| Operating Modes | 8 |
| Max. Lift | 6 m |
| Max. Flow Rate | 55 L/min |
| Motor Power | 5-45 W |
| Connection Size | 1½" x 1" |
| Connection Distance | 130 mm |
| Weight | 2.9 kg |
| Dimensions (L x W x H) | 13.5 x 13.7 x 13 cm |
| Material | Stainless Steel |
| Manufacturer Reference | 001475 |

Figure 5: Technical data table for IBO NOVA circulation pumps, detailing various operational parameters.

Figure 6: Comparison table showing specifications for different IBO NOVA pump models, including NOVA 25-60/130.
9. Warranty and Support
For warranty information, please refer to the terms and conditions provided at the point of purchase or contact your local IBO distributor. In case of technical issues or questions not covered in this manual, please contact customer support for assistance.




