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Thermostat or Filtration with Buffer.
By Amallore
This guide will show you how to set up a thermostat that will prevent your coolers or heaters from cycling constantly. I've drawn the picture so far but I'll have to add more explanation later if it's needed.

Comment and let me know if you need any more information or help to make this work.
The setup.
Here it is.
The new and improved version per Essen's suggestion. (thanks for the tip!)

And now for the Notes mentioned in the screenshot above.

Set the HIGH and LOW limits to whatever you like for temperature, gas pressure, gas concentration, etc. I've used this with filtration units, heaters, and my 25 watt passive cooler so far. Works great in all situations.

Coolers and Filtration
If you want to turn the equipment on at a high point and you want to shut off at a low point, set the compare chip to "Greater than". Then set the 0 or OFF side of the select unit to the HIGH limit. Set the 1 or ON side of the select unit to the LOW limit. This way your coolers or filtration will trigger at the high pressure. The select unit will flip to the low limit and the compare will continue to be true since your pressure or temperature is much hgher than your LOW limit.

Heaters and Fill pumps
If you want to turn equipment on at a low point and off at a high point (Heaters), set the compare chip to "Less than". Then set 1 on the select chip to the HIGH limit and 0 on the select chip to your LOW limit.

Let me know if you need more information in the comments.
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redman5850 Sep 1, 2018 @ 5:05pm 
Does this work the same with AC units?
farmer Jun 3, 2018 @ 12:14pm 
describing "what is configured where" directly on the image would make this guide so much easier to understand
Amallore  [author] Apr 8, 2018 @ 8:00am 
Guess I should really fix the missing description on the select chip, then!
AnonSliver Apr 8, 2018 @ 3:29am 
adding this to the main page on the Wiki :steamhappy:
drij Apr 3, 2018 @ 1:05am 
All good & thermostat now working. Thanks again Amallore.:steamhappy:
drij Apr 2, 2018 @ 8:17pm 
Thanks.... I fugured as nuch but thought I would check to be sure!
Amallore  [author] Apr 2, 2018 @ 8:14pm 
Oh crap I left that one off.

The logic select reads the Logic compare. So when the compare changes state so does the select chip.
drij Apr 2, 2018 @ 8:12pm 
Just checking.... what does the Logic Select read from/to?
drij Apr 2, 2018 @ 7:12pm 
excellent! thanks Amallore... will test it out on my base shortly. Cheers
Amallore  [author] Apr 2, 2018 @ 6:38pm 
drij, I remade the thermostat per Essen's suggestion. Works fantastic so far. I've updated the guide.