Grundfos MAGNA1 circulation pump – an efficient solution for your installation. The Grundfos MAGNA1 32-120 F 220V is an electronic circulation pump designed for use in heating, air conditioning systems, and domestic hot water circulation. It is an economical alternative to the MAGNA3 pump, while offering high energy efficiency and ease of integration with building management systems. It is a reliable solution for both professional installers and end-users looking for an efficient and maintenance-free solution.

Design and application

MAGNA1 is designed for simplicity and functionality. It has an integrated controller and operating panel in the control box, which facilitates configuration and pump monitoring. The housing is available in a cast iron version, and the impeller is made of carbon fiber reinforced composite – ensuring durability and corrosion resistance. The pump is ideal for mixing loops, heating and air conditioning surfaces, geothermal heat pump systems, and smaller refrigeration installations.

Advantages and benefits

• High energy efficiency: Meets the requirements of EuP 2015 regulations, which translates into significant energy savings. The energy efficiency index (EEI) is only 0.2.
• Simple operation and monitoring: Intuitive interface and maintenance-free design make it easy to use.
• Remote control: Possibility of remote starting/stopping of the pump via digital input and wireless communication with the Grundfos GO Remote application (requires additional accessories).
• Operating monitoring: Continuous monitoring of the pump status, including fault detection via a fault relay output.
• Durable construction: Made of high-quality materials – gray cast iron (GG 25) and carbon fiber reinforced composite – guarantees long life.
• Maintenance-free: Thanks to the closed impeller design, the pump does not require regular cleaning or maintenance.
• Wide range of applications: Ideal for heating, air conditioning and domestic hot water circulation systems.
• Speed control: Stepless speed control allows for optimal matching of the pump performance to the current system needs.

The pump is characterized by a maximum flow rate of 11.22 m³/h and a maximum head of 12 meters. It operates at a voltage of 230V (1 phase) and draws a rated current of 1.48 A. The maximum operating pressure is 10 bar, and the ambient temperature is 0-40°C, while the liquid temperature is in the range of -10 to 110°C. The degree of protection is IPX4, providing protection against splashing water. The pump switch type is other (details can be found in the technical documentation). The insulation class is F, and the impeller material is other (details can be found in the technical documentation).