https://community.viessmann.de/t5/Gas/Vitodens-222w/m-p/202953#M63895 <P>Hi, excuses for writing in English, my witten Deutsch is not good enough..</P><P>I have a question about my Vitodens 222W (installed in 2019). I want to restrict the heating to max 23 degrees. In the service manuel of the Vitodens I see there is a possibility to change the room temperature range from the standard 10°- 30° to<SPAN>&nbsp;3° - 23°&nbsp; (parameterlevel 2, by changing code E1:1 to E1:0). However, I dont see&nbsp; E1 in the list with parameters I can change...&nbsp;</SPAN></P><P><SPAN>Is this something my heating technician can do ? I asked him, but no answer. That is why I am asking the question in this community, to see if I have to insist with my heating technician for him to do it.</SPAN></P><P>&nbsp;</P><P><SPAN>Thank you in advance for any information regarding my problem.&nbsp;</SPAN></P> Thu, 09 Dec 2021 16:42:29 GMT Noya 2021-12-09T16:42:29Z https://community.viessmann.de/t5/Gas/Vitodens-222w/m-p/202953#M63895 <P>Hi, excuses for writing in English, my witten Deutsch is not good enough..</P><P>I have a question about my Vitodens 222W (installed in 2019). I want to restrict the heating to max 23 degrees. In the service manuel of the Vitodens I see there is a possibility to change the room temperature range from the standard 10°- 30° to<SPAN>&nbsp;3° - 23°&nbsp; (parameterlevel 2, by changing code E1:1 to E1:0). However, I dont see&nbsp; E1 in the list with parameters I can change...&nbsp;</SPAN></P><P><SPAN>Is this something my heating technician can do ? I asked him, but no answer. That is why I am asking the question in this community, to see if I have to insist with my heating technician for him to do it.</SPAN></P><P>&nbsp;</P><P><SPAN>Thank you in advance for any information regarding my problem.&nbsp;</SPAN></P> Thu, 09 Dec 2021 16:42:29 GMT https://community.viessmann.de/t5/Gas/Vitodens-222w/m-p/202953#M63895 Noya 2021-12-09T16:42:29Z