Grundfos MAGNA3 25-120 Circulator Pump

The Grundfos MAGNA3 25-120 circulator pump, reference 97924248, is a highly efficient and advanced pump designed to meet the needs of heating in commercial buildings. With a focus on system monitoring and control, this pump stands out for its intuitive handling and easy integration into building management systems (BMS) through optional CIM modules, making it an ideal choice for installations that require precise control and optimal comfort.

Key Features:

The MAGNA3 25-120 offers a simple user interface that allows for intuitive configuration, perfectly adapting to the needs of each installation. This approach facilitates both its initial installation and daily use, ensuring efficient operation and optimal performance at all times. Thanks to its integration into energy management systems, the pump helps improve operational efficiency and reduce energy costs.

With an energy efficiency index (EEI) of 0.18, the MAGNA3 is one of the most efficient pumps on the market. Its ability to automatically adjust its performance according to system demand, combined with its easy monitoring, makes it ideal for heating system applications looking to reduce energy consumption without compromising performance.

Technical Data:

• Nominal flow rate: 5.56 m³/h.
• Nominal head: 7.469 m.
• Maximum head: 120 dm (12 m).
• TF class: 110.
• Approvals: CE, VDE, EAC, UKCA, TSE, RCM, UkrSEPRO, Morocco.

With a nominal head of 7.469 metres and a flow rate of over 5.56 m³/h, this pump is capable of providing a constant flow of hot water to meet the demands of medium-sized commercial building heating systems. Its ability to handle large flow rates and pressure heights makes it a versatile and powerful option for commercial applications.

Materials and Construction:

• Hydraulic body: Cast iron (EN 1561 EN-GJL-200, ASTM A48-200B).
• Impeller: Composite.

The pump is constructed with a cast iron body, a highly resistant material that ensures the longevity of the equipment under intensive use conditions. The impeller, made of composite, is designed to resist corrosion and wear, ensuring long-lasting performance in heating systems and other water circuits.

Installation and Operation:

• Ambient temperature range: 0 to 40 °C.
• Pumped liquid temperature: -10 to 110 °C.
• Maximum working pressure: 10 bar.
• Connection size: 1 1/2 inches.
• Port-to-port length: 180 mm.

The MAGNA3 25-120 is easy to install thanks to its standardised G-type connections of 1 1/2 inches, making it compatible with a wide range of commercial piping systems. Its nominal pressure of 10 bar ensures it can handle most heating systems, while its ability to operate with liquid temperatures from -10 to 110 °C makes it an ideal choice for both high and low-temperature applications.

Liquids and Applications:

The pump is designed to handle water in heating systems, with an ideal operating temperature of 60 °C, although it can operate within a temperature range of -10 °C to 110 °C, making it suitable for a variety of applications. Among its most common uses are:

1. Heating systems in commercial buildings: Ensures an efficient supply of hot water for radiators, underfloor heating, and other heating systems.
2. Integration into BMS systems: The pump is compatible with building management systems, allowing for advanced control and optimisation of energy consumption in commercial installations.
3. Replacement of old circulators: Offers a significant improvement in terms of energy efficiency and control, making it a perfect option for upgrading obsolete commercial heating systems.

Electrical Data:

• Maximum input power (P1): 185 W.
• Minimum power (P1): 9 W.
• Nominal voltage: 1 x 230 V.
• Network frequency: 50/60 Hz.
• Maximum current consumption: 1.56 A.
• Minimum current consumption: 0.09 A.
• Protection class: X4D.
• Insulation class: F.

The MAGNA3 25-120 is designed to operate efficiently with reduced energy consumption, making it an ideal choice for heating systems requiring continuous operation. With a maximum power of 185 W and a minimum consumption of 9 W, this pump ensures a perfect balance between performance and energy efficiency, resulting in a lower impact on energy costs.

Other Features:

• Net weight: 5.11 kg.
• Gross weight: 5.85 kg.
• Transport volume: 0.015 m³.

The compact design and light weight of the pump facilitate its installation, handling, and maintenance, reducing installation time and improving accessibility in both installation projects and replacement of old pumps.