Biral A13-1 variable speed central heating circulating pump with high efficiency motor, energy rating A. The integrated electronic inverter automatically speeds up and slows down the pump to match the demand in the system as radiator valves open or close. An intuitive and easy to use push-button interface allows you to control the pump, switchng between 3 modes - constant pressure, constant speed and proportional pressure - and 9 level settings. With automatic night reduction mode, this is an energy efficient pump which complies with the new stringent European regulations for circulating pumps. 230v 1 phase supply. 1.1/2" connections 180mm face-to-face. Max 5m head,max flow 5.5m3 per hr.
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