1. Product Overview
The IBO OHI 25-60/180 circulation pump, also known as a heating pump, facilitates the movement of heating water within a heating system. This pump model features a manual 3-speed regulator, allowing for system adaptation. It is suitable for use in heating and air conditioning systems with fluid temperatures ranging from +2°C to +110°C.
Key features include:
- Manual 3-speed regulator for optimal system adaptation.
- Suitable for heating and air conditioning systems with fluid temperatures from +2°C to +110°C.
- Constructed with a ceramic shaft, graphite radial bearing, stainless steel bearing plate and rear pot, and a grey cast iron pump housing.
- Compact design for easy installation.
- Quiet operation.
Image 1: IBO OHI 25-60/180 Circulation Pump. This image displays the orange-colored pump unit with its black control panel, showing the speed selector and technical specifications. Two black rubber seals are visible at the bottom.
2. Safety Information
Read all instructions carefully before installation and operation. Failure to follow these instructions may result in electric shock, fire, or serious injury.
- Electrical Safety: Ensure the power supply is disconnected before any installation, maintenance, or repair work. All electrical connections must be performed by a qualified electrician in accordance with local regulations. The pump requires a 230V, 50Hz power supply.
- Water Temperature: The pump handles fluid temperatures between +2°C and +110°C. Exercise caution when working with hot water to prevent burns.
- Pressure: The maximum operating pressure is 10 bar. Ensure the system components can withstand this pressure.
- Installation Environment: Install the pump in a dry, well-ventilated area, protected from frost and direct weather exposure.
- Personal Protective Equipment: Always wear appropriate personal protective equipment (e.g., gloves, safety glasses) during installation and maintenance.
3. Installation Guide
Proper installation is crucial for the pump's efficient and safe operation.
3.1 Pre-Installation Checks
- Verify that the pump's specifications (voltage, frequency, pressure) match your system requirements.
- Ensure the installation location provides adequate space for mounting and future maintenance.
- Confirm that the piping system is clean and free of debris.
3.2 Mounting the Pump
- The pump has an installation length of 180 mm. Ensure sufficient space between pipe connections.
- Install the pump in the return line of the heating system, if possible, to extend its lifespan by operating at lower temperatures.
- Ensure the motor shaft is horizontal to allow for proper lubrication of the bearings.
- Use the provided seals (gaskets) to ensure a watertight connection to the piping. The connection diameter is 1 1/2"/1".
- Tighten all connections securely but avoid over-tightening.
3.3 Electrical Connection
- Ensure the main power supply is switched off at the circuit breaker.
- Connect the pump to a 1 x 230 V, 50 Hz power supply.
- The pump has an IP44 protection rating. Ensure the electrical connections are protected from moisture.
- Follow the wiring diagram provided on the pump's terminal box cover.
- Ensure proper grounding.
3.4 System Filling and Venting
- After installation, fill the heating system with water.
- Vent the system thoroughly to remove any trapped air. Air in the system can cause noise and reduce pump efficiency.
- The pump may have a manual vent screw; open it carefully until water flows out, then close it.
4. Operating Instructions
The IBO OHI 25-60/180 pump features a manual 3-speed selector to adjust performance.
4.1 Initial Start-up
- Ensure the system is filled with water and properly vented.
- Turn on the main power supply to the pump.
- Select a speed setting using the rotary switch on the pump's control panel.
4.2 Speed Settings
The pump offers three speed levels, each with different power consumption, maximum flow rate (Q max), and maximum head (H max):
- Level I: 46 W power consumption, 22 l/min maximum flow, 3 m maximum head.
- Level II: 63 W power consumption, 38 l/min maximum flow, 5 m maximum head.
- Level III: 93 W power consumption, 55 l/min maximum flow, 6 m maximum head.
Adjust the speed setting based on the heating system's requirements to achieve optimal circulation and energy efficiency.
5. Maintenance
Regular maintenance ensures the longevity and efficient operation of your circulation pump.
5.1 Routine Checks
- Visual Inspection: Periodically check the pump for any signs of leaks, corrosion, or damage to the casing or electrical connections.
- Noise Level: Listen for any unusual noises during operation, which could indicate air in the system or a mechanical issue.
- Temperature: Ensure the pump is not overheating.
5.2 Cleaning
Keep the exterior of the pump clean and free from dust and debris to ensure proper heat dissipation.
5.3 Winterization (if applicable)
If the heating system is to be shut down for an extended period in freezing temperatures, ensure the system, including the pump, is drained to prevent frost damage.
6. Troubleshooting
This section provides guidance for common issues. For complex problems, consult a qualified technician.
| Problem | Possible Cause | Solution |
|---|---|---|
| Pump does not start | No power supply; Motor seized; Faulty wiring | Check power connection and circuit breaker; Manually turn rotor if accessible (after disconnecting power); Inspect wiring for damage. |
| Insufficient flow or no circulation | Air in the system; Blockage in pipes or pump; Incorrect speed setting | Vent the heating system thoroughly; Check for blockages; Adjust to a higher speed setting. |
| Pump is noisy | Air in the system; Cavitation; Foreign objects in pump; Incorrect mounting | Vent the system; Check system pressure; Inspect pump for debris; Ensure horizontal motor shaft. |
| Leakage at connections | Loose connections; Damaged seals | Tighten connections; Replace seals. |
7. Technical Specifications
| Model Number | OHI25-60_180 |
| Brand | IBO |
| Voltage | 230 Volts |
| Frequency | 50 Hz |
| Power Consumption (3 levels) | I: 46 W; II: 63 W; III: 93 W |
| Max Flow Rate (3 levels) | I: 22 l/min; II: 38 l/min; III: 55 l/min |
| Max Head (3 levels) | I: 3 m; II: 5 m; III: 6 m |
| Protection Type | IP44 |
| Max Operating Pressure | 10 bar |
| Fluid Temperature Range | +2°C to +110°C |
| Installation Length | 180 mm |
| Connection Diameter | 1 1/2" / 1" |
| Materials | Ceramic shaft, Graphite radial bearing, Stainless steel bearing plate and rear pot, Grey cast iron pump housing |
| Manufacturer | 4U-Onlinehandel |
| Package Dimensions | 20 x 14.2 x 13.8 cm |
| Weight | 2.63 kg |
| International Article Code | 05902944507971 |
8. Warranty and Support
Information regarding the product warranty is not provided in the available data. For warranty claims, technical support, or spare parts inquiries, please contact the original seller or the manufacturer, 4U-Onlinehandel, directly. Keep your purchase receipt as proof of purchase.
