vitodens 222-W type B2LB opentherm

[MichVw]

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.

[Patrick_Zarges]

Hello MichVw,

you are from Belgium, right? In Germany there is no opentherm for an external thermostat in connection with a B2LB.

Please contact our colleagues in Belgium: info@viessmann.be

Best regards °pa