Grundfos 98126824 MAGNA3 32-100 Variable Speed Cast Iron Circulator Pump 115/230V 1/6HP

The Grundfos MAGNA3 32-100 GF is a high-efficiency variable speed circulator pump engineered for commercial and residential heating, cooling, and hot water recirculation applications. This intelligent circulator features a permanent magnet motor and integrated frequency converter that delivers exceptional energy efficiency and system optimization.

Key Features:

• AUTOADAPT technology automatically adjusts pump operation to meet system demands and reduces energy consumption by up to 85%
• FLOWLimit function restricts maximum flow and reduces the need for pump throttling valves
• Automatic night setback runs on minimum curve when built-in temperature sensor registers a temperature drop
• Integrated Bluetooth connectivity for direct connection to Grundfos GO Remote app for setup, diagnostics, and performance monitoring
• Built-in differential pressure and temperature sensors for precise system control
• Grundfos Eye provides visual indication of pump status including running, warning, or alarm conditions
• Maintenance-free wet rotor design with canned-rotor construction ensures quiet operation
• Cast iron housing with carbon-fiber reinforced composite rotor can and stainless steel bearing components
• Fieldbus communication capability via optional CIM modules with configurable relays and analog/digital inputs
• No external motor protection required, insulating shell included

Specifications:

• Rated Flow: 29.1 GPM
• Rated Head: 20.67 feet
• Voltage: 115-230V single phase, 50/60 Hz
• Horsepower: 1/6 HP
• Maximum Power Input: 178 watts
• Maximum Operating Pressure: 174 PSI
• Ambient Temperature Range: 32°F to 104°F
• Connection Type: Flanged

The MAGNA3 32-100 is ideal for heating and cooling systems, ground source heat pump applications, hydronic systems, chilled water circulation, snow melt systems, hot water recirculation, and BTU metering applications. The 4-pole synchronous permanent magnet motor delivers higher efficiency than conventional asynchronous motors, while the air-cooled power electronics ensure reliable long-term operation.