How does this thermostat actually work??

[fourteen8]

We are trying to figure out how thermostat in KV6 works and why they design such way in Freelander.Maybe you guys can give us more lights...

here the links
http://s157.photobucket.com/albums/t...t=P8050153.flv

http://www.landyzone.co.uk/lz/f9/kv6...r-42880-3.html