I want to do temp control on two FVs with a Lindr AS-40 (two lines). When connected (havn’t bought it yet) I understand that the temperature will be set and then a pump will recirculate. That obviously won’t work, because I need it to recirculate only when the fermenting wort is too hot. I can see a couple solutions. Put an inkbird in front of everything. That will turn the cooler off with the pump, and I cannot control the two strings separately. I can also separate the pump and cooler and use the ink bird only on the cooler. This still only gives me one temperature to control after. Then comes the brewpi related ones. I can either start the pump always and use valves to shut off the flow for each FV, potentially turning off the pump with a 240v relay in front of the pump.
Thoughts? Specifically wrt hardware and setup for a the new brewpi hardware.
We typically solve this use case with the Logic Actuator block.
Here, the valves would be under PID temperature control, with the pump activating if any valve is open.
The built-in pump is separately controlled from the compressor on my Lindr. You could let Brewblox toggle it and also control 2 valves.
I use the built-in pump for my taps (2 beer lines with cooled python).
I have 2 small 12V pumps that control the temperature of my fermenters.
I just leave my Lindr at about 4 degrees with the built-in thermostat. Brewblox just controls the 2 pumps that pump water through the cooling coils. It’s the simplest solution and it works well. No valves.
Yes, they are very short. You can use the 2x1mm wire cable that we sell, but almost anything will do.
I can include something to connect the cables to the pump in a waterproof way.
You’ll need a 12V power supply that you connect to the power input on the IO board. The pluggable terminal block is included, so you just need something that puts 12V on 2 wires.
I assume you already have thermowells for the sensors.
Is it correct that all I need besides the stuff I linked above is 1) a 12 volt power supply (the one in the webshop is not in stock), 2) some wire and 3) some sort of way of extending the pump cables in a water proof way? (how?)
