Grundfos ALPHA1 15-55 F 99287256 Circulator Pump, 115 V, 0.65 A, 1/16 hp, 21 gpm

Grundfos Circulator Pump, Model: ALPHA1 15-55 F, 115 V, 0.65 A, 60 Hz, 1/16 hp, 21 gpm Flow Rate, 1 ph Phase, 150 psi, 19 ft Maximum Head, 19.2 dBA Sound Level, Iron Body, 2 to 110 deg C Liquid, 40 deg C Ambient, 162.1 mm H x 165.1 mm W

The ALPHA1 is an energy efficient, variable speed circulator built with reliable, electronically controlled Grundfos permanent magnet motor (ECM) technology, which has been used by Grundfos in the industry for more than 16 years. Featuring three-constant pressure control modes, an LED display and easy-to-use pushbutton controls, the ALPHA1 is the perfect solution for domestic hydronic heating and hot water recirculation applications. Capable of replacing more than 30 other pump models, the ALPHA1 has the highest torque rating and most powerful start feature in its class. A magnetite-resistant design, robust ceramic shaft and stainless steel bearing plate ensure that the ALPHA1 reliably delivers the optimal system flow at the lowest possible energy consumption.

• Cast iron flange with terminal box
• Designed with trusted Grundfos ECM technology which has been used by Grundfos for more than 16 years
• ALPHA1 features the highest torque rating and most powerful start feature in its class which attempts to restart indefinitely every 7 sec in blocked rotor conditions
• ALPHA1 features an integrated check valve and nut captures for flanges
• ALPHA1 features three-constant pressure control modes with easy-to-use pushbutton settings
• Large LED display shows energy watt consumption and flow indicator in gallons per minute
• Magnetite-resistant design with a stainless steel bearing plate, robust ceramic shaft and ceramic bearing rings
• Extremely quiet 19.2 dBA operation - tested in one of the best European sound labs
• ALPHA1 is compatible with either a line cord or terminal box for conduit connections
• Composite impeller
• Electric thermal protection

Specifications