Grundfos High-Efficiency Circulator Pump ALPHA1 GO 25-40 180 220-240V 9H DB0

ALPHA1 GO 25-40 180 The ALPHA1 GO is a highly efficient circulator pump with an electronically commutated motor. It is designed for circulating liquids in heating and air conditioning systems. The ALPHA1 GO features intelligent control and offers three control modes: constant pressure, proportional pressure, and constant curve. Each control mode has three adjustable speed levels. Replacing older integrated and external circulator pumps, including adopting their characteristic curves, is easily done using the Grundfos GO app and the control panel. Thanks to the new connector, the electrical connection can be made quickly and easily without additional tools. Automatic self-venting and dry-running protection ensure quiet and reliable pump operation. The product is characterized by a robust start-up mode that prevents the risk of blockages due to impurities, magnetite, or limescale deposits. In the unwanted event of a pump blockage, the motor continuously attempts to start with the highest possible torque, ensuring a start even under difficult conditions. The ceramic shaft and ceramic bearings are subject to only minimal wear. This increases the service life and reduces the likelihood of noise that can occur due to wear caused by increased bearing play. Troubleshooting is quick and easy using the error codes on the pump's control panel. Type of control: Frequency converter: integrated Pumped liquid: Pumped liquid: Water Liquid temperature range: 2 .. 110 Celsius Liquid temp. at data acquisition: 20 Celsius Density: 998.2 kg/m3 Technical data: Rated flow: 1.65 m3/h Rated head: 1.89 m Pump head orientation: 9H Temperature class: 110 Approvals: CE, VDE Materials: Pump housing: Grey cast iron Pump casing: EN 1561 EN-GJL-150 Pump housing: ASTM A48-150B Impeller material: Composite Impeller: PES+30% GF Installation: Ambient temperature: 0 .. 55 Celsius Max. operating pressure: 10 bar Pipe connection standard: ISO 228-1 Connection type: G Connection size: 1 1/2 inch Pressure stage: PN 10 Port-to-port length: 180 mm Electrical data: P1 min.: 4 W Maximum power consumption P1: 27 W Mains frequency: 50 / 60 Hz Rated voltage: 1 x 220-240 V Minimum current consumption: 0.06 A Maximum current consumption: 0.3 A Enclosure class (IEC 34-5): IP44 Insulation class (IEC 85): F Thermal protection: Electronic Other: Energy efficiency index (EEI): 0.20 Net weight: 1.91 kg Gross weight: 2.12 kg Shipping volume: 0.004 m3 Country of origin: RS Customs tariff no.: 84137030