Originally Posted by Tom_FL
I have access to a GFCI protected 240V 30A feed as well as multiple GFCI protected 120V 20A feeds. What I am wondering is if I can use the 30A feed for the HLT and BK (with coil contactors and switched per P-J's diagrams to ensure only one is in use at any given time) and use a 120V 20A feed to run a smaller element for the RIMS tube as well as power the BCS. Basically a control panel (or two separate but connected CP's) with two feeds in.
If such a setup is feasible I am thinking it will give me a bit more flexablity to do back to back (I know it will be slower) as well as allow me to not have to worry about the temp loss in the HLT after moving the strike water to the MLT and then adding in the additional sparge water that some face with HERMS.
I was wondering why you would not want to split 240V inside a _single_ control panel to power up your BK/HLT with 240V and RIMS with 120V?
Do you have 3-wire 240V line with no neutral?
Or do you want to build two separate panels for back-to-back brewing?