Replacing the Circulation Pump ALPHA2

Grundfos ALPHA2 25-40 Circulation pump

Sealed rotor circulation pump with high energy efficiency, intended for liquid circulation in domestic heating systems. The pump offers automatic capacity adaptation (AUTOADAPT) for optimal comfort and minimal energy consumption, as well as three control types: proportional pressure, constant pressure and constant curve operation.

Advantages:

• Energy Efficiency Index (EEI) well below the EuP Directive reference value

• Night setback and manual summer mode save energy

• Easy one-button operation, no external motor protection required

• High starting torque and maintenance-free design

• Quick installation with ALPHA plug and insulation covers

• Possibility of easy hydraulic balancing with ALPHA Reader and Grundfos GO Balance app

The pump is compact, self-venting and built with robust components for a long service life. The display shows current flow, power consumption and operating status.

Technical specifications:

• Nominal flow: 1.5 m³/h

• Max lifting height: 4 m

• Construction length: 130 mm

• Power: 18W

• Voltage: 230V

• Pressure: 10 bar

• Material: Cast iron and PVC-C

• IP rating: IPX4