Do You Need the Bosch A2L Interface Board? Full Wiring & Setup Explained!

Espanol:    • ¿Necesitas la placa de interfaz Bosch A2L?...   Polish:    • Czy potrzebujesz płyty interfejsu Bosch A2...   The Bosch interface board works with the factory installed A2L refrigerant sensor that now comes installed in the new R454b Bosch cased coils. In this video Brian discusses when the Bosch interface board will be needed and goes into great detail on wiring and setting up the Bosch Interface Board for use with the new R454b Refrigerant, A2L sensor . #A2L #hvac #heating #cooling #electrical #Bosch #R454b #sensor #refrigerant #454 #heatpump #freon #ultra #boschultra #leak