Time tracking operation on boiler OKOFEN

[patrice42440]

Good evening Christina
what mistakes do you see
Thank you in advance

[Did67]

Your slope at 32,5 for the radiators must be a written slip!

[christina86]

Good evening Patrice, sorry I did not take the time to detail earlier:
for the slope a slip, yes there are chances

- floor: 0.4 slope, 22.5 foot, 6 correction and hyst 1
- radiators: 32.5 slope, 32.5 foot, 1 correction, hyst 0

but also a compensation of 6 on a floor and 1 on radiators is surprising, usually it is rather the opposite (genre 2 and 5 respectively) - and also hysteresis at 0 for radiators ... unless this or an inversion: 0 for compensation and 1 for hysteresis (factory setting) because no room sensor or deactivated.

[patrice42440]

Yes of course! the radiator slope is 1.5
For the rest, I maintain

[Did67]

Do you confirm having two internal room sensors ??? [because otherwise, displaying two different compensation factors is purely fictitious]

Also agree with christina's astonishment [even if I am always wary of recipes of the "usually" type, in fact, the orders of magnitude are rather those she gives]

[dirk pitt]

I confirm that the compensation for a heated floor must be equal to ZERO.
what is compensation: a correction of the flow temperature calculated according to the measured value of the ambient.
the heated floor has such inertia that it is illusory to think of correcting anything according to the ambient.
the base of the curve and the slope must be perfectly adjusted for a heated floor and that's it. no correction.

I also really liked the sentence: my installer was unable to re-integrate my buffer tank in the new installation ....

[patrice42440]

no, I only have a room sensor on the floor.
I'm going to look at Christina's data.
FYI, the boiler continues to run continuously (62 hours out of 62 possible ...)

[patrice42440]

OK Dirk, it’s noted, I’ll take a closer look!
As for the BT, it is however true ... and I was presented with a fait accompli at the end of the installation ...

[christina86]

the heated floor has such inertia that it is illusory to think of correcting anything according to the ambient.
the base of the curve and the slope must be perfectly adjusted ...

++
a room sensor in a very inertial system is not useful, the offset is such that it only disturbs.
With my heated walls, the well-adjusted heating curve maintains my T amb. hunky-dory.

Patrice, if you have two circuits and a single probe, it is surprising that it is not on the radiators ... it may still be feasible?

And when you have put the compensation 0 on the PC, it may be necessary to correct the curve (if it was adjusted to the nose without having deactivated the probe to determine foot and slope ...)

[Did67]

I confirm that the compensation for a heated floor must be equal to ZERO.
what is compensation: a correction of the flow temperature calculated according to the measured value of the ambient.
the heated floor has such inertia that it is illusory to think of correcting anything according to the ambient.

I would be a little more nuanced: having a PCBT and a house with a good window on the south and a huge bay towards the West, I have a probe + correction factor (on 4 I think).

My curve is perfect when there is no solar gain.

But if there is sun, indeed, the PCBT will be a little relieved, but it will also collect solar calories ...

Suddenly, I avoid too much overheating during the day (even if by super-sun all day, it can go up to 24 °; but this is nice). At the possible price of a small lack of radiation once the sun is down (therefore a displayed temperature of 20 ° for example, but with reduced comfort due to a lack of radiation).

So I would say it's a "compromise". It would be a shame not to take advantage of this contribution or not to take advantage of it to relieve the boiler a little ...

More than "diktats", I think that the regulation of a heating, it is above all an adaptation to its situation, with a good dose of compromise.