Hello All, I have recently been bitten by the T25 bug and have fallen in love after going to Camper Jam with my mate in his van, and had a spectacular weekend. I have since got myself a nice VW T25 2L Aircooled Van 1982, which has some work to be done on the body but a great interior (none standard) its got a great heating sytem, with all the other usual stuff, and has been fitted with a CF6 Zig unit, the problem is I dont really now what it is supposed to do. the reason I ask is the van didnt have a leisure battery wired in, so when the van is parked up , I switch the 12V to on and I can use the lights etc (heating/Fridge/cooker are all gas) but these run off the crank battery. What happens when I plug the 240V hook up ? does it then run from mains and not my crank battery ? also when I flick the charge battery switch does it charge my crank battery too ? also how easy would it be to install a leisure battery and what would the Zig unit be capable f doing if I did ? soo many questions sorry, its my fisrt post

Hope someone could shed a bit of light on this subject..
Thanks
Pete