MAGNA1 D 65-120 F Circulator Pump

The Grundfos MAGNA1 D 65-120 F circulator pump is an efficient and reliable solution designed for heating and air conditioning systems in commercial buildings, as well as for district heating. Featuring a wet rotor design and advanced redundancy capabilities, this pump ensures continuous flow even in the event of a head failure, as it allows automatic switching between the two heads, communicating wirelessly to offer safe and continuous operation. It is ideal for applications that require basic performance and a simple control and monitoring system, also complying with the EuP 2015 regulation for energy saving.

Technical features:

• Liquid temperature range: -10 to 110 °C, with 60 °C being the typical operating temperature.
• Maximum working pressure: 10 bar, allowing its use in demanding applications.
• Construction materials: The pump body is made of cast iron (EN 1561 EN-GJL-250 / ASTM A48-250B) and features a composite impeller, ensuring durability and resistance.
• Connection: DIN type, DN 65 size with a nominal pressure of PN 6/10 and installation length of 340 mm.

Operating modes:

The MAGNA1 D 65-120 F pump offers three control modes to suit various operational needs:

1. Proportional pressure control (PP1, PP2 or PP3): Adjusts the pressure according to the system flow, ideal for applications with variable demand.
2. Constant pressure control (CP1, CP2 or CP3): Maintains a fixed pressure regardless of flow, providing system stability.
3. Constant curve control (I, II or III): Operates with a constant flow, suitable for specific applications.

Additional benefits:

• Automatic redundancy: If one head fails, the other automatically activates, ensuring service continuity.
• Wireless communication between heads: Allows synchronised and flexible operation between the two pump heads.
• Grundfos Eye: Visual indicator showing the pump's status, facilitating supervision.
• Low noise level: Ideal for commercial applications where quiet operation is required.
• Energy saving: Energy Efficiency Index (EEI) < 0.23, complying with EuP 2015 standards to reduce electrical consumption.

Recommended applications:

The MAGNA1 D 65-120 F is suitable for a variety of applications, including:

• Heating in commercial buildings: Ensures efficient control of the heating system, optimising comfort.
• Air conditioning in large areas: Provides reliable and efficient water circulation in climate systems.
• District heating: Meets the demands of large urban areas with automatic adjustment capability.
• Mixing loops and geothermal pumping systems: Suitable for applications requiring flow and pressure control.
• Small chiller applications: Flexible solution for cooling installations.

Electrical data:

• Maximum input power: 769 W, with a minimum consumption of 24.89 W.
• Nominal voltage: 1 x 230 V.
• Current consumption: 0.27 A minimum / 3.39 A maximum.
• Network frequency: 50/60 Hz.
• Insulation class: F (IEC 85) and protection grade X4D (IEC 34-5).

Additional advantages:

• Easy installation: Thanks to its compact design, the pump is easy to install and replace in existing systems.
• Complies with international approvals: CE, VDE, EAC certifications, and others ensure safe use and compliance with international standards.
• Monitoring and configuration: The pump features digital inputs for start and stop, and configurable relays for status and alarms, facilitating system management.

The Grundfos MAGNA1 D 65-120 F is a versatile and efficient option for heating and air conditioning applications in commercial and industrial environments, providing safe operation, energy savings, and easy integration into basic control systems.