Redefining reliability and efficiency Full range of Professional Class circulator pumps for heating, air-conditioning and cooling

More reliable. More efficient Solid innovation Ceramic shaft and bearings The new ALPHA2 is a groundbreaking new pump – but it is based on the world-famous Grundfos reliability. With 60 years of experience and than 3 million ALPHA2 pumps in the field, we are in a unique position to continue a proud history of high-quality products that exceed legislative standards and customer expectations. The new ALPHA2 uses proven technology from previous models and has been fine-tuned from the outside in to offer supreme reliability in a high-efficiency circulator pump. The ceramic shaft and bearings in the...

New ALPHA2 does it all The new ALPHA2 is not just more efficient and reliable than ever before – it is also more versatile We have made a few crucial design changes that allow you to use the new ALPHA2 in cooling applications with pumped liquid temperatures down to +2°C. This means that the new ALPHA2 will not only cover your heating demands, but also up to 90% of your airconditioning and cooling demands. So from now on, it makes no difference whether you are looking for the perfect heating or cooling circulator. They are both the same – new ALPHA2. The simple choice The ALPHA pump range has...

Compact design Ceramic bearings The proven ceramic bearing technology used in other Grundfos products has been adapted to the new ALPHA2. The new ALPHA2 gives you all the benefits of the renowned Grundfos ALPHA pump – reliability, efficiency, simplicity etc. – but we have fine-tuned the pump to give you more of everything. New motor design The new ALPHA2 motor has been redesigned in order to increase electrical efficiency even further. The exploded view shows all the new ALPHA2 features and improvements compared to previous ALPHA models. Every new feature provides a new unique benefit to the...

Autoadapt Developed and patented by Grundfos, the AUTOadapt technology makes installation easy, flawless and always optimal This innovative control mode fully utilizes the benefits of electronic speed control and makes the new ALPHA2 even easier to install. What does AUTOADAPT do? • akes pump installation as simple M as pressing a button • nalyzes system demand and adapts A pump performance – all by itself • chieves the ultimate comfort levels with A the lowest possible energy consumption Reference settings Set to AUTOADAPT, new ALPHA2 starts at a factory preset reference duty point on a proportional...

Technical data Supply voltage: Enclosure class: Insulation class: Relatively humidity: Ambient temperature: Liquid temperature: Temperature class: Sound pressure level: Input power: Pump housing materials: Cast iron / Stainless steel Easy selection Inlet pressure: System pressure: Pump type Pump type Application overview Pump type AUTOADAPT area Pump type DN15 DN25 DN25 DN32 DN25 N DN25 N DN32 N DN25 A One-pipe systems Constant pressure (CP) curves Two-pipe systems Proportional pressure (PP) curves Under-floor heating Hot water recirculation Solar thermal systems Boilers with external pump

The full Grundfos product range covers all building application areas: • Pressure boosting • Heating • Cooling • Ground source energy • District energy • Water disinfection • Wastewater handling • Rainwater harvesting • Fire fighting Grundfos Holding A/S Poul Due Jensens Vej 7 DK-8850 Bjerringbro Tel: +45 87 50 14 00 www.moderncomfort.grundfos.com/ www.thinkingbuildings.com The name Grundfos, the Grundfos logo, and be think innovate are registered trademarks owned by Grundfos Holding A/S or Grundfos A/S, Denmark. All rights reserved worldwide. The improved new ALPHA2 small circulator offers unrivalled...