Originally Posted by rp5brew
Is the one element requirement due to current limitations?
I would start by writing up a basic sequence of operation; detail what you want to happen during each stage of the process, mash, sparge and boil. Identify any safety interlocks, like pump must run before heater energizes, stuff like that. The first step in engineering process control is a detailed sequence.
The plan is to plug in using an unused drying outlet in my house that is about 15 feet from the brewing location, I assumed it would be too much power required to run both elements and both pumps at once.
Here is the sequence:
1. Heat Strike Water in HLT
2. Transfer Strike water to MLT
3. Re-Fill HLT to cover HERMS coils as well as reach sparge water quantity
4. Heat HLT to Strike Temp while running both pumps to circulate both HLT water (to maintain temp evenly) and circulate MLT threw herms coils to maintain Temp
5. Mash in - increase or decreasing temp in HLT as necessary (should be held constant by BCS 460)
6. Increase temp of Mash by increasing HLT water to mash out temp
7. Sparge - 2 pumps running - 1 to pump sparge water to mash out and 1 to pump out wort from beneath a false bottom in the MLT
8. Switch heating elements to raise BK to boil
9. Pump from BK through Plate chiller into fermenter
So at any given time, I'll need 1 element and both pumps going at once. Let me know if more detail is required.