Rad fans...how they work, what does what...diagrams inc

[Piggy]

any one shed some light on this for me...

Im curious to know which rad fan comes on with the aircon?

cant find the answer after much searching/googling.

ta

.....

have edited this first post now as answers found...edited post for anyone searching in future.

see links at bottom of thread for handy diagrams and full explanations on how the system operates