vtherm calling for heat when temperature already high #852
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At 0900 this vtherm was set to eco (16º). At 0910 I saw it was still calling for heat and the central boiler was still on
At 0911 I set the vtherm to frost and it stopped calling for heat, then I set it back to eco and it didn't call for heat. Any ideas as to why it was still asking for heat until I manually changed it? My settings for that vtherm are - The log said - (0855 was when I re-enabled the bedroom thermostat) |
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Answered by
jmcollin78
Jan 21, 2025
Replies: 6 comments 4 replies
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Hello, Are you talking about this : 
You have 2 configuration issue:
This should fix your issue. |
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Answer selected by
jmcollin78
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Thanks yet again. Sorry, I missed the note about not using the closing degree for trvzb. |
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1 reply
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This has been added recently due to the issue reported by users. |
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can you just confirm for me that the calibration offset is read by vt and not written by it? i.e. am I free to modify that value to account for the awful temperature sensing on these trvzb's? |
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Vtherm writes the calibration offset so that the internal temp of the Sonoff is set to the room temp. That is the purpose of the calibration offset. |
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So I probably shouldn't be using it then. Nearly all of my temperature
readings are coming from the trvs themselves. If there are 2 in a room I
take an average of the 2.
The temperatures are not accurate so I'm using the offset to correct.
I'm guessing it makes no difference if there's one trv per vtherm, as there
will never be a difference between the trv temperature and the vtherm
temperature, but we could get some strange results where I'm averaging.
…On Wed, 22 Jan 2025, 20:23 Jean-Marc Collin, ***@***.***> wrote:
Vtherm writes the calibration offset so that the internal temp of the
Sonoff is set to the room temp. That is the purpose of the calibration
offset.
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You shoudn't do that. The main advantage of VTherm is to use a thermometer where you want the temperature to be reach. The internal temp of your device is too near of the heat sources and is then not reliable at all. See: https://github.com/jmcollin78/versatile_thermostat/blob/main/documentation/en/over-climate.md |
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I realise it's not optimal, but for now I have no other source of
temperature.
…On Thu, 23 Jan 2025, 06:55 Jean-Marc Collin, ***@***.***> wrote:
Nearly all of my temperature
readings are coming from the trvs themselves. If there are 2 in a room I
take an average of the 2.
You shoudn't do that. The main advantage of VTherm is to use a thermometer
where you want the temperature to be reach. The internal temp of your
device is too near of the heat sources and is then not reliable at all.
See:
https://github.com/jmcollin78/versatile_thermostat/blob/main/documentation/en/over-climate.md
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that is not that it is not optimal, it just don't work. |
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I've ordered some |
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Hello,
Are you talking about this :
You have 2 configuration issue:
This should fix your issue.