October 1, 2012 – The new SCU 345 solar system control from Viessmann Manufacturing combines powerful control features, advanced monitoring functions and user-friendly programming to achieve maximum performance in complex residential and commercial solar thermal systems, it says. The SCU 345 incorporates standard SCU series control features including variable speed pump control, east-west collector array logic, collector glycol cooling function, night time tank cooling, heat rejection loop control, energy metering and compatibility with VBus accessories.

VIESSMANN MANUFACTURING