Utilizing a 30132030 PC board restores the operational integrity of your unit

Can this be used as the primary heat source

portable solution for spot treatments and small-scale applications

Whether you are performing a seasonal teardown or responding to a terminal failure code

Always verify the rating plate on the indoor coil

Viessmann 7819971 Air Vent 318423-701 Utilizing a 30132030 PC boardThe 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