I finally have some time to go back to playing with the Daikin. Hopefully some progress soon.
On my trawling of the internet I came across this from Danfoss which is interesting for anyone looking to hack inverters:
Inverter-scroll-VRJ - Danfoss
and the manual for controlling the compressor:
http://www.danfoss.com/NR/rdonlyres/...al20111117.pdf
I've also now got my hands on a Panasonic unit so as and when the Daikin is cracked and I'm up for another challenge.....
Acuario