I’m trying to control an attic fan with a TH10
If the temp is over the setting the fan runs briefly but I think the humidity setting turns it off. Is there a way to stop them from canceling each other?
A screenshot about how you set the conditions？
Thanks for your quick reply!
I also included the log.
I use the th10 for my terrariums. If you are in the th10, you will see the auto on the left. Click on that. Turn it on. In the terrariums it should be at least 25 degrees and max. 35.
I have the settings there:
temp. higher than 35 degrees → off
temp. lower than 25 degrees → on
and the effective period : all day.
The humidity has no influence on the on and off.
do it only with temp. , not in combination with humidity.
I deleted the humidity setting so that’s how I have it working now.
The old analog control would turn the fan on when the temperature OR humidity was above a set point(usually around 85-90%) I doubt my attic ever gets that high but it’s supposed to work that way. You can configure settings for both the temp and humidity but when both are set they work as an ‘AND’ instead of an ‘OR’, I can’t think of a reason why anyone would want it to work that way but you should be able to do either.
Hi Patrick,
Thank you for your feedback. Regarding your request to have the device consider both temperature and humidity before executing an action, we recommend using the scene feature to achieve this. You can create a scene with the condition “If the device temperature reaches 75.9℉ and humidity reaches 85%RH, then turn on the device.”
Additionally, I noticed that in your AUTO mode settings, you have only used a single value for temperature or humidity. For example, if the temperature exceeds 75.9℉, the device turns on, and if it falls below 75.9℉, the device turns off. This may result in frequent on/off cycles if the temperature quickly fluctuates around the set value, which could potentially harm the device. Therefore, I recommend using two values as the criteria when using the AUTO mode to control the device.
Not “and”… “or”
I want the fan to run
If temp>85 or humid >85
Examples:
If temp=86 humid=35 fan=on
If temp=72 humid=86 fan=on
If temp=72 humid=72 fan=off
It took quite a bit of wrangling but I finally stumbled on the solution…
by setting the Humidity first but probably because the Temperature is last the Humidity control does not override the Temperature setting. so far so good.
These are the spring / summer settings, I’ll adjust these in the fall / winter to conserver more heat.
This is a truth table for how it should work for attic operation:
Attic Fan Temp / Humidity Truth Table
Scenes can probably be used for more granular control with an outdoor Humidity sensor but I think that would be going even more overboard than I already have especially since in my tiny attic it may never actually run the fan for Humidity anyway.
Happy Feast of the Assumption of our Blessed Mother Mary Queen of Heaven everyone and
God Bless!