Orfy
I just saw this for the first time. What a looser I am. Better late than never
I would be happy too if you still want to know.
My system is a 3 tier gravity system from the HLT (Top tank, 7000 Watt 240VAC digital control w/ low level shut off on the elements)
The tank that you see in the pict that is tipped over is my Mash Tun (MT). My MT dumps into a Grant. Out of the grant is where everything gets pumped to where ever in the system I want, via 3 stainless ball valves. They control the direction and the speed of the transfer.
So the flow of the system and the electrical control is easy.
I have an Asco valve from the HLT to the MT it is controlled by an electrical float switch in the MT. That switch is adjustable in its height to keep a good 2" liquor cap on my mash when sparging. I fly sparge. So when the Liquor level gets to low in the MT the valve on the HLT opens and fills the MT to my set level. When I sparge I set the speed of the sparge w/ a stainless ball valve, once the speed is set I can walk away for an hour the system takes care of itself.
The grant is also controlled by a float switch. When it fills, it turns on the pump and the pump runs for a specific time (controlled by a timed delay relay I set the time), to a specific location set by the 3 ball valves.
My boil kettle (BK) has a stainless jacket and a flu so I trap the heat that goes up the sides of the kettle. I have 1500* F insulation that separates the BK and the stainless table, so the table doesnt get hot.
Everything on the system is mounted on a Stainless table that we got from Costco.
The system was designed so I can (1) have a life while I brew, ya know, set it and forget it. And (2) have 2 batches in the system at the same time. 1 in the MT and 1 in the BK.
Its a fairly smart and solid system. It's all hard wired (no PLC).
I am making some changes to the system. I am installing a water filter and an Asco valve and float switch for the HLT fill, so I don't over flow my HLT (I do this often). I am also adding a timer on the HLT so I can have my mash water ready when I wake up in the morning.
Again sorry for the late post!
I hope I answered you completely, if not let me know. I am not the best writer:cross:
Cheers
JJ