Closed pieri70 closed 10 months ago
pieri70
commented
10 months ago At 14 I started a wood burning stove
This is the bad VT behaviour
This is the underlying TRV
This is another VT same kind of room, and TRV/Sensors, this is working fine
This the underlying TRV
jmcollin78
commented
10 months ago Hello @pieri70 ,
Ypour VTherm is an over_climate type with the underlying: climate.trv_davide.
In this type, VTherm is only sending the target temperature to the underlying which decide to heat or not to heat alone.
So the problem is related to your underlying behavior and not on the VTherm behavior.
You have to check the temperature measured by the underlying. I guess it is under the target set by VTherm.
We see that clearly in the graph of the underlying climate.
What you can is to active the self-regulation on the VTherm. I think you can try directly with the Strong self-regulation mode. Then the VTherm will send lower target temperature and it should stop heating after a certain time.
This self-regulation feature have been implemented exactly for this case: bad temperature measurement from the TRV itself.
pieri70
commented
10 months ago Hello thanks for your reply. I discovered that the underlying TRV had a big negative offset (-5.4C) compared to others (~1C). That was inherited from Better thermostat that in my case made a mess... I changed it to reflect the external sensor measurements and now all seems ok. No more heating when not needed. I am starting as the guide say, start with no correction and see how it works. You think that it is better to use some temperature correction? Does VT works on target temperature or to temperature offset when correcting? These TRVs seem to me that don't like to be offset corrected too often. Ciao
jmcollin78
commented
10 months ago Hello glad to here it is working now.
You think that it is better to use some temperature correction?
Yes. Self-regulation adapts itself dynamically to the offset which can change over time depending on the weather condition. There is no case, where it is not recommended. And because you had a strong offset, I suggest to start directly with the Strong or Medium regulation level. At worst, it won't do anything.
Does VT works on target temperature or to temperature offset when correcting?
Both. VTherm self-regulation works on target temperature, which is equivalent as working on temperature offset for me). It adapts dynamically the offset until target is reach and limited by the self-regulation level. That is why you can always add self-regulation even Strong.
jmcollin78
commented
10 months ago If it is ok please close the issue. I will add this recommendation into the Troubleshooting of the README.
pieri70
commented
10 months ago Ok thanks!
Version of the custom_component
Latest one installed today 5.2? -->
Configuration
My VTherm attributes are the following:
Describe the bug
Versatile Th. installed today, using Sonoff TRVZB TRVs I see that in one room heating starts when there is no need of it (high current temperature - current_temperature: 20.4 temperature: 18) If I click on the minus button and set 17.5°C the thermostat stops heating and returns by itself to 18°C
I'm trying to:
Control temperature in my rooms And I expect:
That when current temperature is higher or equal to target one no heating will start
But I observe this ....
Not as above, in one room heating starts with current_temperature: 20.4 temperature: 18
I read the documentation on the README.md file and I don't find any relevant information about this issue.
Debug log