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The grundfos ALPHA2 26-99 F is a medium sized, cast iron, energy efficiency circulator fitted with a permanent magnet motor (ECM) and frequency converter for heating applications. Featuring eight different operating modes including constant pressure AUTOADAPT and proportional pressure AUTOADAPT, the ALPHA2 26-99 F is the perfect fit for any heating application. AUTOADAPT functionality enables the ALPHA2 26-99 F to control operation automatically within a defined performance range. When set in proportional pressure AUTOADAPT or constant pressure AUTOADAPT, the pump will automatically analyze the heating system, find 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 F reliably delivers the optimal system flow at the lowest possible energy consumption.
Grundfos Circulator Pump, Model: ALPHA2 26-99F, 26 gpm Flow Rate, 32.48 ft Maximum Head, 3 to 120 W, 115 V, 0.05 to 1.7 A, 60 Hz, 145.04 psi Maximum Pressure, 1-1/4 in Connection, Flanged Connection, 1 ph Phase, 32 to 131 deg F Ambient, 14 to 203 deg F Liquid, Iron, Additional Information: Composite Impeller Material
| Model | : | ALPHA2 26-99F |
| Amperage Rating | : | 0.05 to 1.7 A |
| Voltage Rating | : | 115 V |
| Frequency Rating | : | 60 Hz |
| Phase | : | 1 ph |
| Connection Type | : | Flanged |
| Material | : | Iron |
| Connection Size | : | 1-1/4 in |
| Flow Rate | : | 26 gpm |
| Power Rating | : | 3 to 120 W |
| Temperature Rating | : | 32 to 131 deg F Ambient, 14 to 203 deg F Liquid |
| Additional Information | : | Composite Impeller Material |
- Eight intelligent control modes - three defined proportional pressure curve settings, three defined constant pressure curve settings, constant pressure AUTOADAPT, proportional pressure AUTOADAPT
- Magnetite-resistant design protects the pump from harmful iron oxide found in heating systems
- 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 pushbutton control settings
- Designed using 65+ year of hydronic heating experience
- Check valve included
Specification Sheet
