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Grundfos Alpha 15-55F/LC Variable Speed Circulator Pump with cord - 59896832


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Grunfos ALPHA 15F/LC Variable Speed Circulation Pump with AUTOADAPT


Grunsfos UPS15-58FC

Circulating pump-Grunfos ALPHA 15 is the standard by which all other variable speed circulating pumps are measured.  The ALPHA 15 has a cast iron body with a permanent magnetic motor that allows it reduce energy consumption by over 50% compared to standard circulation pumps. the LC model includes a standard 115 VAC Nema power chord.

AUTOADAPT measures the system changes and automatically adapts to maximize the energy or to maintain a certain flow rate.  Great for multiple zones that open and close at different times as the AUTOADAPT will sense the pressure drop increases the pump speed to compensate for added zones.


Grundfos ALPHA 15-55F/LC Features:

  • Terminal box for conduit connection applications;
  • Large display shows current energy consumption in Watts;
  • Large display shows estimated flow in gallons per minute;
  • Integrated check-valve (removable);
  • Line chord
  • Cast Iron pump housing;
  • A one button, easy-to-use interface;
    • 3 Fixed Speeds
    • 3 Constant Pressure Speeds
    • AutoAdapt Range



  • Closed loop radiant heating & snow melting systems, solar thermal secondary loops
  • Baseboard/Radiator/Fan coil heating and other hydronic heating applications.
  • Air Source Heat pumps (hydronic)
  • Geothermal de-super heaters 
  • Muliple Zones


Technical Specifications of Grundfos ALPHA 15-55F/LC :

  • Flow Range: 0 to 21 GPM;
  • Head Range: 0 to 19 Feet;
  • Motor: 1x115V;
  • Min. Fluid Temperature: 36F;
  • Max. Fluid Temperature: 230F;
  • Max. Working Pressure: 150 PSI;
  • Watts: 5-45W;
  • Amps: 0.65A;
  • 1/16 HP


3 years manufacturer's warranty.

Pump Curve




Return Policy

We want you to be 100% satisfied with your purchase, if you are not, ship it back to us in the original packaging condition and we will refund your purchase less a 10% restocking fee, provided the equipment is received in good condition. Refund offer valid for 30 days from receipt of product.



We feel that being honest is a much better policy to win your trust rather than trying to lure you with nearly impossible statements such as lifetime warranty. Nothing lasts forever! Our warranty policy is simple; we offer a 3 year warranty on everything we sell and 10 years on our collectors. With this warranty you will get NO hassle next business day replacement (if shipping service and inventory permits). However, as a valued customer you will get technical support through the lifetime ownership of your product. Our Collector do carry longer warranties 10 years from the manufacture. The warranty cover failures that occur during normal operational conditions or manufactures defects. It does not cover failure due to inappropriate operation such as freezing or over heat. Damage caused by vandalism, storms, floods etc. Your houshold insurance should be modified to cover the system from such situations.

We accept PayPal and Credit card (Visa or MasterCard). If you are ordering multiple units and part, please call us to see if we can save you shipping cost for multiple item orders.


For complete solar kits please allow 2-3 weeks delivery. These kits are shipped via our preferred freight forwarder company and where possible we will schedule residential tailgate delivery (curbside). Heaters and accessories are usually in stock unless indicated otherwise. We do have expedited shipping services available for an additional fee. Please call us if you need a rush order. Once your order has been shipped you will be contacted via email and a tracking number will be provided.

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  • Model: N-287
  • Shipping Weight: 2lbs
  • 0 Units in Stock
  • Manufactured by: Grundfos

This product was added to our catalog on Wednesday 17 May, 2017.

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