Now that the holes are filled, I'm trying to determine the best layout for the controls.
From left to right and top to bottom,
HLT PID, then RIMS PID with Alarm for mash complete timer, and then BK PID with alarm for hop additions timer.
Pushbutton maintained switches (green) in the next row down to control the contactors for the heating elements.
Pushbutton maintained switches (white squares now, but maybe yellow pushbutton switches) below the RIMS and BK PIDs for resetting the timers.
Then on the bottom row the pushbutton maintained switches (blue) for the pumps. RIMS on the left and CFC on the right.
The PIDs for the RIMS and BK are the new SWA-2451's from Auber. They have an integrated timer in them. They are set so when the temp of the wort reaches the set point the timer starts to count down, regardless of the temp. When the timer expires the heat is cut and the alarm will sound. The timer requires an NC circuit, so to reset the timer and alarm the switch is turned off (open circuit) and then back on. It's only a single stage timer so it should work very well for the RIMS and ok for the BK. I'll just have to set the times correctly for the hops additions.
No holes are punched yet for these controls. I haven't decided if I should switch the row of element switches with the row of timer reset switches. What do you think? I'm open to ideas and discussing with you guys will help me think through it.