Submittal Sheet
Key Features and Benets
• 8 intelligent control modes:
- Three dened proportional pressure curve settings
- Three dened constant pressure curve settings
- Constant pressure AUTOADAPT
- Proportional pressure AUTOADAPT
• Magnetite resistant design protects the pump from harmful iron oxide
found in heating systems
• High eciency pump design and controls reduce energy consumption
by up to 85%
• 360 [mNm] starting torque clears pump of system debris and sediment
• Designed with trusted ECM technology which has been used by
Grundfos for more than 16 years
• System and pump protection warning and alarm indicators
• LED light indicators for pump settings and alarms
• Easy to use push button control settings
• Designed using 65+ years of hydronic heating experience
The Grundfos ALPHA2 26-99 is a medium sized, energy eciency
circulator tted with a permanent magnet motor (ECM) and
frequency converter. Featuring eight dierent operating modes
including constant pressure AUTOADAPT and proportional pressure
AUTOADAPT, the ALPHA2 26-99 is the perfect t for any heating
application.
AUTOADAPT functionality enables the ALPHA2 26-99 to control
operation automatically within a dened performance range.
When set in proportional pressure AUTOADAPT or constant pressure
AUTOADAPT, the pump will automatically analyze the heating
system, nd the optimum system curve and duty point and
continue to adjust its operation to changes in demand. A magnetite
resistant design, robust ceramic shaft and stainless-steel bearing
plate ensure that the ALPHA2 26-99 reliably delivers the optimal
system ow at the lowest possible energy consumption.
Medium-Sized Energy Ecient Circulator
GRUNDFOS ALPHA2 26-99
APPLICATIONS
• Heating Systems