Dual Immersion

[Leshark]

Sound like you need to be sure of the customers reasoning behind having 2, that would make your decision for you, if a backup or need to run at differing times 2 times/mcbs would be best

 

[RmBo_0]

Think you may have replied to the wrong thread mate.

 

[sedgy34]

I've done this before all you need to do is install 1 20amp radial and install a booster time clock this will switch between the 2 easy peasy

 

[RmBo_0]

Ah right that would be a lot easier and cost effective. Just thought you needed an e7 supply for them.

 

[eganelectrical]

Usually the econ 7 dual supply feeds 2 x ccu. Some just have one ccu and turn their water tanks to econ 7 buy sending a 20a radial to a fused spur in tank cupboard and out if there to econ 7 timer clock and out of the clock to the tank, one feed one timer and another boost. I have seen them with 2 separate stats on the tank!!
Like this ...

http://www.tlc-direct.co.uk/Technical/DataSheets/Horstmann/ECON7DOUBLE.gif