The Pump modulates which means it is capable of delivering an outlet pressure which is proportional to the actual system demand at any given time, this is based on the resistance it experiences when valves are closed in either underfloor or radiator systems.Īlternatively, it can also be set manually using the same fixed speeds you would find on a 3 speed manual Circulator which is why we call it ‘semi-automatic’, much like a car with this type of gearbox it is capable of both manual and automatic operation. Its head fits perfectly onto the Grundfos UPS3/UPM3 and it can be used both externally, and in newer combination Boilers.
It has a port to port distance of 130mm and produces a maximum head of 6 meters making it perfect both for replacements and for new installations in domestic heating systems. The Black Edition Pro 15-60/130 is a Compact Modulating Semi-Automatic Domestic Heating Circulator with a standard 1 ½” threaded connection.
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