Grundfos 98126852 MAGNA3 65-150 F Cast Iron Flange Mount Circulator Pump 208-230V 1-1/2 HP

Grundfos part — Grundfos 98126852 MAGNA3 65-150 F Cast Iron Flange Mount Circulator Pump 208-230V 1-1/2 HP

The Grundfos part (manufacturer part 98126852) is a genuine OEM part available at Cedars HVAC, your trusted source for heating, cooling, and refrigeration parts. We stock this Grundfos part for fast nationwide shipping from our Miami warehouse, so contractors, facility managers, and homeowners can get the exact replacement they need without delay.

Product details

Grundfos MAGNA3 65-150 F Circulator Pump

This MAGNA3 circulator pump is designed for circulating liquids in systems with variable flows where it is desirable to optimize the setting of the pump duty point, thus reducing energy costs. This pump is especially suitable for installation in existing systems where the differential pressure across the pump is too high in periods with reduced flow demand.  It is also suitable for new systems where automatic adjustment of pump head to actual flow demand is desired, without using expensive bypass valves or similar components. Furthermore, the pump is suitable for systems with hot water priority as an external signal can immediately force the pump to operate according to the maximum curve, for example in solar heating systems.  Simply install the pump and leave it on the factory setting, AUTOADAPT.  The pump will automatically analyze the heating system, find the optimum setting and then continuously adjust its operation to changes in demand saving time and effort.

The MAGNA3 is the most efficient circulator available on the market today. With the lowest Energy Efficiency Index (EEI) in the world, below 0.20, you can achieve energy savings of up to 75% compared to a typical installed circulator. With the unique Autoadapt control these savings can be as much as 85% and thereby a remarkably fast return on investment.

Features

• AUTOADAPT
• FLOWADAPT and FLOWLIMIT
• Intuitive user interface with TFT display
• Proportional pressure control
• Constant pressure control
• Constant temperature control
• Built-in Grundfos differential pressure and temperature sensor
• Constant curve duty
• Maximum or minimum curve duty
• Automatic night setback
• Internal motor protection. No external motor protection required
• Heat energy meter
• Work log history
• Insulating shells supplied with single-head pumps for heating systems
• Large temperature range where the liquid temperature and the ambient temperature are independent of each other
• 13-1/2″  port-to-port length
• Maximum flow 250 GPM
• Maintenance free
• Multi-pump function
• External control and monitoring enabled via add-on modules

Applications

• Heating systems
• Air-conditioning and cooling systems
• Domestic hot water systems
• Ground source heat pump systems
• Solar heating systems

View Technical Specifications

Why buy from Cedars HVAC

• Genuine OEM Grundfos part — not aftermarket substitute
• Contractor-friendly pricing
• Fast nationwide shipping from Miami, FL
• Real HVAC expertise — call us at (305) 218-5880 if you need help confirming compatibility
• Financing available through Affirm and PayPal Pay Later

About this Grundfos part

This Grundfos part is part of our Pumps catalog. Contact us if you need help identifying compatible models or sourcing volume quantities. For installation guidance, always refer to the manufacturer documentation and consult a licensed HVAC technician where required.

Shipping and returns

Most Grundfos part orders ship the same or next business day from Cedars HVAC in Miami, Florida. Standard ground shipping covers the continental United States, and expedited options are available at checkout. Returns are accepted within 30 days on unopened, uninstalled parts — see our return policy for full details.

Frequently asked questions

Is this an OEM part? Yes, the Grundfos part we sell is sourced through authorized channels.

Will this Grundfos part fit my equipment? Compatibility depends on the model. If you need help confirming fitment, call us at (305) 218-5880.

Can I get a contractor discount? Yes — request contractor pricing or call us.

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