The ALPHA1 L is a high efficiency circulator with permanent magnet motor (ECM technology). The circulator has 3 control modes: 3 variable pressure curves (heating with radiators), 3 constant pressure curves (underfloor heating) and 3 fixed speeds. The speed can be controlled by a low voltage PWM (Pulse Width Modulation) signal. The pump has a ceramic shaft and radial bearings, carbon thrust bearing, cast iron pump body, composite impeller, which contribute to increasing the life of the circulator. The pump is self-ventilated.
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