Válvula de tres vías e intercambiador de placas

The original video is in spanish. This video follows I feel a principle scheme in order to understand the need and interaction of certain elements of the wall boiler with each other. The fundamental idea is focused on seeing how the three-way valve works and how the heating and hot water services. They are alternate (not simultaneous). This has direct consequences when sizing them for a given installation. This video is part of a course and should be understood as such.