safeguarding against heat exchanger damage and ensuring reliable system cycling during peak demand

setpoint but includes a Uni-Kit for field conversion to LP Gas (11

the Normally Closed function ensures the valve returns to the closed position immediately upon loss of 24V power for system safety

portable solution for spot treatments and small-scale applications

Can this be used as the primary heat source

Viessmann 7819971 Air Vent 318423-701 safeguarding against heat exchanger damageThe Viessmann 7819971 Air Vent with Shut Off Base is a critical component for maintaining hydraulic stability in high performance condensing systems. Engineered specifically for the Vitodens series, this G3 8" automatic air vent facilitates continuous air elimination from the primary heat exchanger loop, preventing airlocks that compromise heat transfer and cause circulator cavitation. This OEM part is the direct replacement air vent for Viessmann