Creating an offset so fans come on before chiller?

[smartwater101]

I think I have my chiller and fan set up correctly (seems to be working fine) but since the hysteresis is within the probe itself, I'm not sure how to offset it. Currently, both the fans and chiller will turn on after a .3 rise in temp. But I'd like my fans to be closer to .2 so they turn on before.

How would I go about this?

 

[smartwater101]

Actually, now that I think about it... the fans should be like .5 and the chiller closer to 1.3... but same question i suppose

 

[Evan Kamien]

I believe you want to use hysterysis for the chiller and the temp probe as a routine to control the fans, when the temp is between 2 values.

 

[ingchr1]

I think you would need to setup a virtual temperature probe. Then use that virtual probe to control either the chiller or fans, which ever you choose.

For reference here's a post in another thread that details how to setup a virtual probe:

https://www.reef2reef.com/threads/temperature-control-setup-profilux-4.543064/post-5842606