The Grundfos ALPHA2 GO 25-75 130 is an advanced high-efficiency circulator pump meticulously engineered for domestic and light commercial heating and air conditioning circuits. Operating on a 220-240V supply, this electronically commutated motor delivers a substantial maximum head of 7.5 metres while maintaining a compact 130mm port-to-port length. Equipped with standard G 1½ connections, the unit accommodates liquid temperatures ranging from -10°C to +110°C, making it a highly resilient solution for diverse thermal applications and an ideal direct replacement for older UPM3 or UPM4 models.

This intelligent circulator incorporates built-in Bluetooth connectivity, allowing installers to interface directly with the Grundfos GO app for streamlined commissioning and advanced parameter adjustments. The pump features the proprietary AUTOADAPT function, which continuously analyses system demands to optimise energy consumption autonomously. Further enhancing reliability, the device integrates dry-run protection alongside a self-venting mechanism, while the internal acoustics are heavily suppressed to ensure operational noise remains strictly below 25 decibels.

Q: What is the port-to-port dimension of this circulator?
A: The unit features a compact 130mm port-to-port length for straightforward inline installation.

Q: How does the pump communicate with mobile devices?
A: It utilises integrated Bluetooth technology to connect seamlessly with the dedicated Grundfos GO setup app.

Q: Does the system protect against operating without water?
A: Yes, it is equipped with sophisticated dry-run protection to prevent motor damage during dry cycles.

Q: What is the acoustic output during normal operation?
A: The pump operates exceptionally quietly, producing a sound pressure level below 25 decibels.