For those who have or are planning to purchase a Living Edge caravan, finding the 240V switch for the hot water is a bit tricky, so go have a look at my blog - http://wanderingoap.blogspot.com.au/2015/05/living-edge-bellagio-caravan.html
Most van manufacturers will fit another internal switch in line with the external Suburban switch and the Suburban switch is left on and the 240 volt
operation is operated by the Internal switch. Usually the original Suburban switch has a Split Pin fitted so that the switch cannot be operated i.e. in the Off position.
But be careful when after travelling then pulling into the van park, because when connecting to Power if for some reason the Hot Water Tank has drained because of a leak you could find that the Element can burn out. That's why it pays too make sure the Power is switched off at the Unit before leaving and also running the Mains Water pressure through the unit before switching the 240 volt Power on.
I have seen a few Elements damaged by this problem and leaks do occur from time to time. I also will not leave the the Mains Supply turned on when leaving the van for the day for the same reason as I have had a few minor leaks over the 13 yrs of full time caravanning and seen quite a few either Flooded vans or blown water connecting hoses to taps.
