The Grundfos UPS4 GO 25-65 130 is a technologically advanced domestic heating circulator powered by a highly efficient electronically commutated motor. Designed to accurately respond to fluctuating system demands, it features three distinct operational modes: constant pressure, proportional pressure and constant curve, each equipped with three adjustable speed settings. This intelligent modulation significantly reduces electrical consumption while preventing issues such as noisy thermostatic radiator valves caused by excessive differential pressure.

Engineered for resilience, the pump incorporates automatic self-venting alongside integrated dry-running protection to safeguard internal components during initial commissioning. A specialized robust startup sequence applies targeted torque to break down any magnetite or particulate blockages that may accumulate during extended periods of inactivity. Featuring a highly durable ceramic shaft and bearings plus full Bluetooth integration with the Grundfos GO app for rapid configuration and error diagnostics, it stands as an exceptional replacement unit for ageing or defective standalone circulators.

Q: How does the pump interface with diagnostic software?
A: Installers can connect via Bluetooth to the Grundfos GO app for setup, balancing and instant fault code diagnosis.

Q: Does it have safeguards against operating without water?
A: The unit is equipped with advanced dry-running protection to prevent motor damage if the system loses pressure.

Q: What materials are used for the internal shaft?
A: It utilises a wear-resistant ceramic shaft and bearings to ensure a prolonged operational lifespan.

Q: Can it clear minor debris blockages automatically?
A: A robust startup function delivers extra torque upon activation to dislodge settled dirt, limescale or magnetite.