I wired my fridge to have three SSR: one for heat, one for cooling, and one to run the internal AC fan. I am trying to program BrewBlox to run the fan any time either the heating or cooling is running.
Things I Tried:
First i tried two separate PIDs for heat fan and cool fan, but that does not work and the PID outputs seem to offset each other. Then i tried PIDs with separate PWM blocks, but the blocks fought for control of the fan actuator. The only other way i see is to use a manual actuator and leave the fan on constantly. However, wouldn’t this prematurely wear the fan out?
How do most people control the internal AC fan in their chambers?
Is there a way to implement a If/Then for the Fan actuators? (i.e. IF Cool = 1 OR Heat = 1, THEN Fan = 1)