Not tried yet, from the FR CWBBKH defines some other conditions.
I got good results disabling cat heating (not cold start) by setting KFKHSWS, KFKHSWSLL and TKHMX to 0. Probably only TKHMX is enough.
Thanks mate! that's what I was thinking doing as well but then I thought if it would be more appropriate to disable it using a keyword. I will test what you said