The FV 70 Tacosol EU 21 comprises a pump, regulator and air venting unit for use on solar heating systems.

Manufactured by Taconova (UK), it allows hydraulic balancing, flow measurement and venting to be performed directly in the solar station, saving on installation time and cost.

It uses a high efficiency DC pump, which is supplied and controlled directly from a photovoltaic panel, negating the requirement for a standard supply connection, solar regulator, collector and accumulator sensor.

Source

Building Sustainable Design

Postscript

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