Description
The Grundfos 98126832 Magna3 40-120F/GF is a high-efficiency, intelligent variable-speed circulator pump engineered for demanding hydronic heating and cooling applications. Featuring Grundfos’s industry-leading AUTOADAPT technology, the Magna3 continuously monitors system demand and automatically adjusts its speed to deliver optimal performance while minimizing energy consumption — making it one of the most energy-efficient wet-rotor circulators available.
Built for versatility and reliability, the Magna3 40-120F/GF operates on 208-230V power and delivers 1/2 HP of output, making it well-suited for residential and light commercial hydronic systems. The GF (Grundfos Flange) connection simplifies installation and ensures a secure, leak-free fit in a wide range of piping configurations.
Key Features
- Intelligent AUTOADAPT control automatically optimizes pump performance to match system demand
- Variable-speed ECM motor for superior energy efficiency compared to fixed-speed alternatives
- 208-230V single-phase power supply for broad electrical compatibility
- 1/2 HP motor output suitable for residential and light commercial hydronic applications
- Grundfos Flange (GF) connections for straightforward, secure installation
- Integrated differential pressure and temperature sensors eliminate the need for external instrumentation
- Built-in alarm and status indicators for simplified diagnostics and maintenance
- Compact, space-saving design with a built-in control panel
- Compatible with a wide range of hydronic heating and cooling systems
- Meets international energy efficiency standards
Product Specifications
- SKU: 98126832
- Model: Magna3 40-120F/GF
- Voltage: 208-230V
- Motor Output: 1/2 HP
- Connection Type: Grundfos Flange (GF)
- Pump Type: Wet-rotor, variable-speed circulator
- Application: Hydronic heating and cooling systems
Why Choose the Grundfos Magna3?
The Magna3 series represents the pinnacle of Grundfos circulator pump technology. Its intelligent control algorithms reduce energy use significantly compared to traditional fixed-speed pumps, translating directly into lower operating costs over the life of the equipment. The pump’s built-in sensors and intuitive interface make commissioning, monitoring, and troubleshooting straightforward for HVAC professionals. Whether you’re retrofitting an existing hydronic system or specifying equipment for a new installation, the Magna3 40-120F/GF delivers the performance, efficiency, and reliability that contractors and building owners demand.
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