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Kan man ikke evt. sætte skorstenstræk til 2 og så hæve min effekt til 11 eller 12% ??

Hjemme teori skrev:Kan man ikke evt. sætte skorstenstræk til 2 og så hæve min effekt til 11 eller 12% ??

Det er et skråplan at pille i 10% til 100% indstillingen.
Der er en mulighed, men det er ikke det første der skal ændres på.

pille bruger skrev:
Det er et skråplan at pille i 10% til 100% indstillingen.
Der er en mulighed, men det er ikke det første der skal ændres på.

OK - Men hvorfor, er det ikke det man gør på V10 styringen. Jeg synes i hvert fald at have læst nogle gange om at folk har måttet sætte en 10kW op i min ydelse, for at få den til at køre stabilt. Og har også læst at det er det skorstenstræk gør, altså hæver min ydelse ?

Hjemme teori skrev:
OK - Men hvorfor, er det ikke det man gør på V10 styringen. Jeg synes i hvert fald at have læst nogle gange om at folk har måttet sætte en 10kW op i min ydelse, for at få den til at køre stabilt. Og har også læst at det er det skorstenstræk gør, altså hæver min ydelse ?

Ja du stiller på min ydelse altså hvor mange "kw" fyret yder i 10 % drift
Skorstenstræk gør det samme
Fyret kan stadig køre ned på 10% bare med en højere ydelse

Hjemme teori skrev:
OK - Men hvorfor, er det ikke det man gør på V10 styringen. Jeg synes i hvert fald at have læst nogle gange om at folk har måttet sætte en 10kW op i min ydelse, for at få den til at køre stabilt. Og har også læst at det er det skorstenstræk gør, altså hæver min ydelse ?

Man kan justerer effekten i mindste ydelse = 10%
På "gamle" versioner "skorstenstræk", på nye "min effekt".
Når den er indstillet korrekt, vil effekten på en 10 Kw være ca 1 Kw og på en 16 Kw ca 2 Kw.
Og det uanset hvad der udlæses som effekt på display
( den er teoretisk beregnet ud fra snegleydelsen, fysisk kan den være meget mindre ).
Styringen har så mulighed for at regulere fra 10% og op til 100%
Stiller man på drift %, og ikke min. effekt, begrænser man det område styringen kan regulere i.
Er der f.eks meget smuld, ville man måske i særtilfælde kun have ½ af reguleringsområdet tilbage.
Og så får man måske en styring der ikke regulere fint nok i små "step".

This is my understanding:

The power level is regulated in 101 steps, from 10 to 100. The unit of this setting is "%", but that is correct only with "skorstenstræk" = 1. The percentage really refers to the modulation level, and not the actual burner power at that modulation level.

If you raise "skorstenstræk" or on newer versions "min effekt", when the burner is running at level "10" it will feed more than 10% of the "full speed pellet g/s", so the actual power level is not 10% of maximum any more. The difference from telling it to limit the lowest power level to eg. "20" instead of "10", is that the blower speed is also dependent of the power modulation level, so the blower will go down to "10", while the pellet feed will be more than "10", and power regulation will still happen in 101 steps. This is quite logical as the reason for raising "skorstenstræk" or "min effekt" is that the chimney draws too much air through the grate with the blower at the lowest possible setting, so it can only be compensated by raising the actual power level. And it would be stupid to do that in a way that also increases the blower speed when the problem to begin with was too much air.

I take for granted that the power level in kW in the display is calculated from the actual pellet g/s fed to the burner regardless of the "skorstenstræk" setting, depending of course of on how correct the pellet g/360s setting is at the moment.

Please correct me if I got something wrong.

motoz skrev:This is my understanding:

The power level is regulated in 101 steps, from 10 to 100. The unit of this setting is "%", but that is correct only with "skorstenstræk" = 1. The percentage really refers to the modulation level, and not the actual burner power at that modulation level.

If you raise "skorstenstræk" or on newer versions "min effekt", when the burner is running at level "10" it will feed more than 10% of the "full speed pellet g/s", so the actual power level is not 10% of maximum any more. The difference from telling it to limit the lowest power level to eg. "20" instead of "10", is that the blower speed is also dependent of the power modulation level, so the blower will go down to "10", while the pellet feed will be more than "10", and power regulation will still happen in 101 steps. This is quite logical as the reason for raising "skorstenstræk" or "min effekt" is that the chimney draws too much air through the grate with the blower at the lowest possible setting, so it can only be compensated by raising the actual power level. And it would be stupid to do that in a way that also increases the blower speed when the problem to begin with was too much air.

I take for granted that the power level in kW in the display is calculated from the actual pellet g/s fed to the burner regardless of the "skorstenstræk" setting, depending of course of on how correct the pellet g/360s setting is at the moment.

Please correct me if I got something wrong.

Ved 0 i "skorstenstræk", eller "min. effekt" der passer til brænderen,
vil effekt udlæsningen passe, hvis flammen er perfekt.
Øges mængden af piller vil effekten stige, men der sker af og til det, at der pga. smuld ikke tilføres de piller ( brændsel ) der forventes.
Derfor passer udmålingen i Kw ikke altid.
Blæser hastighed relatere til drift % og ikke effekt udregningen.

Øges mængden af piller vil effekten stige, men der sker af og til det, at der pga. smuld ikke tilføres de piller ( brændsel ) der forventes.

But if the burner is getting less pellet than it thinks for each turn of the screw, then isn't the correct way to correct that to just lower the "g/360s" parameter? I mean it's still getting less pellet than desired at full power, it's just not as fatal as on minimum power. Or do you mean that the calculated fed "pellet mass / screw running time" is somehow less accurate when running on minimum power than when running on full power?

Maybe I should add that by power level I mean the power fed to the burner in the form of pellet mass / time. The power delivered to the boiler in form of heat is something else, and the difference between these two will vary depending on lots of things. Do you mean that the power level indicated in the display tries to account for this difference, or what do you mean by

vil effekt udlæsningen passe, hvis flammen er perfekt.

?

motoz skrev: But if the burner is getting less pellet than it thinks for each turn of the screw, then isn't the correct way to correct that to just lower the "g/360s" parameter? I mean it's still getting less pellet than desired at full power, it's just not as fatal as on minimum power. Or do you mean that the calculated fed "pellet mass / screw running time" is somehow less accurate when running on minimum power than when running on full power?

Maybe I should add that by power level I mean the power fed to the burner in the form of pellet mass / time. The power delivered to the boiler in form of heat is something else, and the difference between these two will vary depending on lots of things. Do you mean that the power level indicated in the display tries to account for this difference, or what do you mean by ?

Ændringen "skorstenstræk" eller min. effekt, har kun betydning ved lav drift, og mindskes når effekten stiger.
Derfor, hvis du ændre sneglens ydelse ved at stille på afvejningen, får du en effekt ændring,
og derved kan du ikke opnå maks effekt i kedlen.
Justere du "skorstenstræk" eller min. effekt vil du have den fulde effekt på alle områder af de indstillinger brænderen skal kunne regulere.

Med korrekt indstilling vil brænderen yde den effekt man forventer.
F.eks kan en 10 Kw kan regulere fra 1 til 10 Kw.
Det er så ikke i alle tilfælde den effekt der udlæses på display i lav effekt, men ok i høj effekt.

I don't get it, why would it not show correct "effekt" in the display at low power? If the "snegl ydelse" parameter is set correctly then it should know exactly how much pellet is fed for every second that the screw is running?

Or do you mean that you can expect to get 1kW of heat, when feeding 2kW pellet, if min_effekt needs to be raised to 2kW to get a clean burning flame? That would be quite awful...