Introducing the highly efficient and versatile Grundfos ALPHA2 Circulator
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he new Grundfos ALPHA2 takes reliability in small domestic circulators to new heights. Designed and built based on 65 years of hydronic experience, the ALPHA2 will ensure long-lasting trouble-free operation, even in systems where the operational environment is a challenge. ALPHA2 is versatile and efficient whether you use one of its six-speed, pressurecontrol settings, or simply leave it on the factory setting AUTOADAPT™. The ECM motor design reduces energy consumption by 50 per cent, and in AUTOADAPT mode, will automatically analyze the heating system, find the optimum setting and continue to adjust its operation to changes in demand - reducing power consumption by up to 85 per cent. This ensures the lowest possible energy consumption without sacrificing comfort. The Grundfos ALPHA2 is a replacement of previous ALPHA 15-55 models and includes several new features and benefits: • Manual summer mode - The pump is stopped to save energy, and only the electronics are running. To avoid liming and blocking of the pump, the pump is started every 24 hours for two minutes at a low speed. • Improved LED Watt/GPM indicator flashes between 0 and 1 GPM during low-flow conditions and shows “HI” in high flow conditions. • Constant restart – The ALPHA2 with its high-torque motor will continuously attempt to restart in blocked rotor conditions and continue to attempt restart indefinitely. • Foam insulation shell included.
Grundfos ALPHA2 with terminal box for conduit connections.
• New/improved terminal box and wiring connections. • New, black, e-coat protective pump house coating. ALPHA2 is the perfect circulator for hydronic and potable water applications. It features the same versatile operating modes as the former ALPHA; • three constant speed modes • three constant pressure modes • AUTOADAPT™ Other key features and benefits of the ALPHA2 include: • Simple push-button control enables the ALPHA2 to be programmed in one of three constant speed, three-constant pressure, or AUTOADAPT control modes. The current operating mode is always visible on the ALPHA2’s LED display. • The large LED display shows the current energy consumption in watts and estimated flow in gallons per minute. • For installation, you have the flexibility to use either our unique ALPHA Plug with line cord or the ALPHA2 with terminal box for conduit connections. • ALPHA2 is complete with an integrated check-valve, foam-insulation jacket, and nut captures for flanges. • ALPHA2 comes in both cast iron and stainless-steel models. • Robust startup enables the ALPHA2 to continuously attempt to restart – indefinitely – in blocked rotor conditions. • ALPHA2 can be used as a replacement for more than 30 competitor pump models. n For more information on the Grundfos ALPHA2, please visit our website www.grundfos.ca.
Grundfos stainless-steel ALPHA2 model.
Grundfos ALPHA2 with insulation shell.
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