Hi all, we recently installed a Vitodens 222-w (type B2LB) and I like to configure it with an existing opentherm thermostat. From what I understand this is possible using an Opentherm extention? Is this module A7 and A8 connected to X11 on the pcb? If so i believe my installer should be able to order these modules? what is their productnumber? any help is more then welcome. Thank you.
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