Beeing on paternity leave, I have had some time to come up with different ideas for a build, (which has resulted in some strange ones) but in the end I decided to go for a simple BIAB pot with PID control.
*I went for a 25L pot (as this pot was really cheap, I would have prefered 30L) with a 2.4kW heating element.
The heating element is the one from PECOservices http://www.pecoservices.co.uk/spare-ele ... 5-21-p.asp,
quite often used by brewers in Sweden. The PID I use is the N2006P (eBay) with a PT100 sensor.
At first I was planning on incorporating some kind of recirc but after reading several threads on the hassle with recirc in BIAB I decided to not go down that road...
I am planning on doing ~10L batches (Volume into fermenter)
To get the ball rolling I put an order on eBay, PID and SSR was the first to be ordered home!
Some other stuff I bought...
*The blue boxes contain IEC C13 and C14 sockets wich I use for power IN/OUT.
The shiny part to the right is 4-pin XLR, used to connect the PT100 sensor (you actually only need 3-pin)
Next to the box you see the 25A SSR mounted on its heatsink,
and in the lower left a bag with three SPST rocker switches with LED lights
The next step was to see how everthing would fit, cardboard mock-up =)
When I was satisfied with the layout I started cutting the front and back plates.
Finally time to start doing the wiring
Testing, PID controlled kettle
*(The black box with blue and green buttons are an GFI, safety first!)
At last time for a real test, auto tuning the PID with 20l water.
Still had some wiring to do to get the LEDs functioning, realised I had to re-do some of the earlier wiring..
Had some problems with the soldering of the PT100 cables, damn those tiny cables!
After some fiddling I finally got it working
*The top switch is for main power to the unit, the next switch is power to the heating element, and the third one is for the alarm buzzer
Planning to do my first brew in january, can't wait to put it to the real test!
Please let me know what you think or if you have any questions!
*Edit Fri 21/12, additional info added