Search found 2 matches

by jmcglone
Mon Nov 08, 2021 2:05 pm
Forum: Honeywell Home evohome
Topic: Replace old ATF200 with Honeywell Home THR99C3110
Replies: 2
Views: 158

Replace old ATF200 with Honeywell Home THR99C3110

Hi,

I had evohome installed in 2015 and it the evohome controller was the ATF200UK.
I would like to upgrade to the new one (THR99C3110).

It seems to come with a new wireless relay. Can anyone provide instructions on how to replace the old kit with the new one?
Or perhaps this is provided in the ...