Originally Posted by P-J
A 3 phase system would not be all that difficult to setup and control. When you have a good idea of your HLT and BOIL kettle sizes, I'll put together a suggested controller diagram.
I do not plan on making the controller control more than one unit. I would like to make this totally modular. And I want to be able to power any and all units as needed. Even at the same time. Plus by keeping it modular you can 'plug' and play with new or different kettles.
The HLT's will be 2 80 gallon hot water tanks. I have done this with a 20 gallon tank for my one setup. I disable the built in thermostats add a recirc pump add level control, MAKE SURE it is an OPEN system (no pressure) and a sight glass for volume measuring. What is a HLT but a glorified Hot water heater. These will be single phase 240v. just because thats how they come and the commercial Hotwater heaters with 480v are really expensive.
The Mash/Lauter Tun; I am planning on either a false bottom or multiple bazooka's. My shop guy is getting the perfed stainless to keep on hand. Oh yes, I have my own shop that can do basic stainless work.
I want to recirc the wort through a heat exchanger made out of a 15 gal Keggle with Copper Coil inside and its own controller and electric element to do step mashing.
I like using the float valve from Blichmann when sparging on my 10 gallon system so I'm thinking about incorperating something like that.
Boil Kettle; I have NG in the building so I will build one to use this. But I want to make one electric. I have enjoyed my 10 gallon one better since doing so. I am thinking about these elements, I use some of these in the 240v Single phase for heating other products (not boiling)http://www.mcmaster.com/#immersion-heaters/=e0pxsq
Their temperature controlled one's are very basic. One thought I had was to just make a potentiometer inline to get the right boil.
I am planning on putting Tri-Clamp connections thru 55 gallon stainless drum then a TC-Thread fitting to put the elements in. Allow for easy removal and maintanence
I believe in KISS
Gotta GO, Thanks All