Wet rotor circulation pump MAGNA3 32-80 180 1x230V PN10 97924256

Circulation pump for central heating and air conditioning systems

The Grundfos MAGNA3 32-80 is a high-efficiency, glandless circulation pump with a wet rotor, designed for circulating water in heating, air conditioning and cooling systems. Its design minimizes the risk of blockage by impurities, which translates to trouble-free operation and low operating costs. It is a solid solution for both installers and users who appreciate reliability and energy efficiency.

Construction and application

The MAGNA3 pump is designed for easy installation and maintenance. It is equipped with an innovative clamp allowing the pump head to be repositioned without disassembling the installation. The compact design (built-in length 180 mm) allows installation in limited space. The housing made of cast iron GG 20 (GJL-200) ensures durability and corrosion resistance. The pump will work perfectly in:

• Heating installations in residential and commercial buildings
• Air conditioning and cooling systems
• Ground source heat pump installations
• Solar heating installations

Functions and advantages

MAGNA3 is not only efficiency, but also intelligent control. The built-in controller allows you to adjust the pump's operation to the current needs of the system, which translates to energy savings. Key features:

• High energy efficiency (EEI 0.18): Reduces electricity consumption, lowering operating costs.
• AUTOADAPT function: Automatically adjusts the pump's operating characteristics to the installation conditions, optimizing performance.
• FLOWADAPT and FLOWLIMIT: Eliminates the need to use throttling valves, simplifying installation and reducing pressure losses.
• Communication: Supports Modbus RTU, PROFIBUS, BACnet MS/TP, LON/LONWorks protocols and the possibility of communication via the Grundfos GO interface (optional). Allows integration with BMS (Building Management System) systems.
• Built-in differential pressure and temperature transducer: Provides precise pump control.
• Interface signals: Available 0-10 V / 2-10 V and 0-20 mA / 4-20 mA signals allow connection of the pump to external control systems.
• Safety: The motor does not require external protection. Insulation class F and protection degree IPX4 ensure safe operation in various environmental conditions.
• Nominal flow: 4.79 m³/h at a head of 61.62 kPa (6.285 m). The maximum head is 8 meters.
• Motor power: The motor power consumption is 0.136 kW with a rated current of 1.19 A.

The pump is adapted to work at ambient temperature from 0 to 40°C and with liquid at temperature from -10 to 110°C (average operating temperature). Pipe connections are external tapered gas threads (BSPP) with a nominal diameter of 2 inches (50 mm). The maximum working pressure is 10 bar.