FlexCore boilers are available with our
NEW Virtuoso₂high turndown system. Working off the legendary Tru-Flow air/fuel coupling system; the engineers at RBI have developed an air shutter driven system expanding the FlexCore's turndown ratio to 10:1. The uniquely designed air shutter system is positioned between the venturi and the blower inlet. The air shutter opens and closes electronically depending on the firing rate. The air shutter and blower design protect against intake and flue pressure fluctuations by maintaining blower RPM; providing complete combustion stability across the firing rate without sacrificing performance and reliability at any turndown ratio.
Temperatures and air density changes can effect boiler combustion. O₂ sensors measure oxygen levels in the exhaust. The Virtuoso₂ control platform incorporates a proven Bosch O₂ sensor for real-time monitoring that can be instantly accessed by operators and technicians for instant adjustments for improved efficiencies and lower emissions.
