Setpoint requested on Okofen smart xs not respected by the regulator

[adrien0063]

Hello,
I come to you because I have a problem that I cannot resolve.
When my boiler switches to reduced mode, day or night, it does not respect the Room setpoint assigned to it.
The programmed reduced Temp is 18 ° and comfort 20 °, in comfort no worries the Tambiante setpoint is indeed at 20 °; however when this goes to reduced the Tambiante setpoint is set at 8 ° instead of 18 °. So that at night the house drops almost below 16 °.
I don't understand where the problem is coming from.

Here are my settings:

Slope 1,2

30 ° curve foot

Lim T ext comfort 15 °

Lim T ext reduced 5 °

Anticipation duration 180min

Ambient T horn 4

Smoothing 10min

T ambient hysteresis shutdown 1.5K

T ambient hysteresis on 0.5K

If someone has already had this problem and fixed it, I want them to enlighten me .. Thank you

[Pilpoill]

Hello,

The ambient T setpoint which indicates 8 ° is normal, it works like this at Okofen and it will display 8 ° as long as there is no heating request and the ambient T has not dropped to 17 + hysteresis stop - hysteresis works at 18 °.
With your current settings, as soon as the indoor T is strictly equal to 18,5, the heating circulator will start up again.

But only if it is more than 5 ° to the outside sensor because: "Reduced ext T limit 5"
This 5 ° limit takes priority over the observed ambient T.

[adrien0063]

Hello,
I want to thank you for taking the time to answer me.

What I do not understand is that I went down to 16 ° in ambient T without the circulator or shoe triggering, this means that I will have to modify the Text limit?

[adrien0063]

But only if it is more than 5 ° to the outside sensor because: "Reduced ext T limit 5"
This 5 ° limit takes priority over the observed ambient T.

The user manual says the opposite. Beyond 5 ° the circulator is stopped. I deduce that below, it should be turned if I don't have my ambient setpoint.

[Pilpoill]

Hello,
I want to thank you for taking the time to answer me.

What I do not understand is that I went down to 16 ° in ambient T without the circulator or shoe triggering, this means that I will have to modify the Text limit?

But only if it is more than 5 ° to the outside sensor because: "Reduced ext T limit 5"
This 5 ° limit takes priority over the observed ambient T.

The user manual says the opposite. Beyond 5 ° the circulator is stopped. I deduce that below, it should be turned if I don't have my ambient setpoint.

I took the trouble to specify that the outside sensor is PRIORITY on the observed ambient T
It is therefore necessary to raise the external reduction limit to have heating at night above 5 °.
Above 5 ° outside, the circulator will remain off whether it is 10, 12 or 16 ° in your home


You ask for help, I'll bring it to you and I'm sure of myself. Test and we'll talk about it again

[adrien0063]

You ask for help, I'll bring it to you and I'm sure of myself. Test and we'll talk about it again

I raised the outer limit of reduced and indeed, it works ...

Thank you very much for your precious help, it is not easy to adjust this smart XS ..

[Pilpoill]

You ask for help, I'll bring it to you and I'm sure of myself. Test and we'll talk about it again

I raised the outer limit of reduced and indeed, it works ...

Thank you very much for your precious help, it is not easy to adjust this smart XS ..

If you have other questions, do not hesitate.