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A follow-up question here. When SG is activated can we forcefully let the heat-pump to use the electric heater (configured in the 7E82 to 2)? This would be ideal when extremely high solar energy is available but only for short period of time (2-3 hours per day). If this is not achievable through smart grid, can we dynamically manage the activation of electric heater in any other way? Looks like there is a very similar question here: https://community.viessmann.de/t5/Waermepumpe-Hybridsysteme/Vitocal-200-A-AWO-E-AC-201-A16-Smart-Grid-schaltet/m-p/469248 but no answer to it.  ... Mehr anzeigen

thank you. That worked perfectly as described.  ... Mehr anzeigen

Sorry for asking back. Are you suggesting that if I set 7E80 to 4, I can simply "short connect" 216.1 and X3.1 without using EA1? Documentation is not very clear on this. ... Mehr anzeigen

I'm facing the same issue. We have read through the documentation and its not fully clear what is happening.  Does the EA1 module required at all to use the Smart Grid function? We have it and we tested the feature in the following way:  EA1 is connected through the digital interface (KM-BUS, 145) We connected DE2 and DE3 short (DE2, ports 3,4 together and DE, ports 5-6 together) Connected the EA1 module 230V power supply Configured Smart grid - 7E80 to "4" Configured the 6006 and 7204 as well to ask for 60C temperature   After the above there is nothing different happening on the heat pump behavior.    Questions: Do we have to make changes on the connections on main board (like you suggested connecting short 216.1 and X3.1.) or anything else?     ... Mehr anzeigen

Hallo Flo,   Danke für die Rückmeldung.  Es ist eingebunden wie auf die Bilde von diesen link: ZK05954  A  - geht nach Vitocal 200-G B - ist rücklauf von den Pufferspeciher (gemeinsamer anschluss mit Warmwasserspeicher) D  - Vorlauf nach sonde  E  - Verbindung zur Wärmepumpe.    ... Mehr anzeigen

Ich habe die gleiche setup. Vitocal 200-G mit Pufferspeicher und NC-box. Leider die Kühlung geht nicht und es ist nicht klar für uns ob diese Setup gehen kann: NC-box Kühlung in Fußbodenheizung über die Pufferspeicher? Kann jemand konfirmieren?  ... Mehr anzeigen