Action ökofen France on regulation

[dirk pitt]

hello everyone, and especially all users of okofen boilers.

seen the many long threads of discussions on the problems of adjustments and parameterization of these boilers, having had to analyze and patiently correct the concerns of my own boiler, I realize that there is a fundamental problem:

these boilers are actually very well designed mechanically, seem reliable and efficient, including regulation but; perhaps by the very nature of this type of boiler, are complicated to adapt to the type of heating and the house considered.
However where an approximate adaptation does not have too many consequences on the comfort with the oil or gas boilers, the automated control of a wood fire (because it is indeed that) is not simple and the comfort feels it if it is not perfectly well configured.

after trying as best we can to help some of you through this forum, I took the drone and I called okofen France because of all these worries. At first, they thought I was complaining about different problems, etc.
When I told them that I found their material great but that I wanted to give them constructive feedback so that disappointed users do not go everywhere to sing that Okofen is crappy, I felt the ears stand up.
At their request, I am in the process of making a document summarizing all the concerns of the two regulators and the problems of boiler parameters.

I therefore suggest, if you wish, to make an inventory here of the concerns.
thank you for being precise, concise and not to launch a discussion around the problems so as not to get lost.
when some have found a solution to a problem, please also indicate it of course.

[Christophe]

I start with an HS (sorry I have no ökofen): very good initiative which will allow us to synthesize the long subjects of forums!!



But ökofen France are not the designers: they are importers / sellers / installers. I think you would be more likely that your approach will succeed by contacting the parent company in a second time if you see that OF is not moving?

In any case I would be an okofen engineer I would make myself very small and I would ignore this approach: to accept it is to admit that we have not done our job well.

So if you have walls that go up don't worry! It's human!

ps: It would be desirable, in this document, to thank the site and the forums without whom these steps would not have been possible.

Otherwise I hope you have negotiated discounts on spare parts for all okofen owners who will participate in this document?

[Did67]

hello everyone, and especially all users of okofen boilers.

I therefore suggest, if you wish, to make an inventory here of the concerns.

Great. Awesome. Well done.

I intended to do so and stayed with it. Past holidays, work has taken over and fatigue ...

If Okofen France reacted favorably, so much the better. I wanted to write in German at the headquarters in Austria.

I don't know if there is a web expert in the heap, but rather than cluttering up this forum, wouldn't we do a "virtual Okofen user friendliness" ??? More focused on "defending our interests". Of course, I would continue to "help" and inform those who are chatting on the forum, seek, wonder ...

To complete Christophe: I think they will listen to us, especially if we send them extracts from this forum and / or that of "futura" (on which I also chat).

Last point: I'm not sure this problem is Okofen specific! It might just be that we found a few tossing around with our boilers and spending hours and hours watching them. No luck for them to have come across such fanas! Or the chance to progress !!!! I would like to see a Hargassner at work at home. The problem is the same: protecting the boiler while regulating wood combustion and facing an instantaneous demand of X thousand calories ... I cannot imagine that Hargassner has a solution that Okofen has not "copied" "on the new regulation (they copied the possibility of remote control of the boiler by GSM, much less vital!)

PS: being naturally talkative, I will try to "summarize" my experiences / Bine sure, I am ready. And even MOTIVATED !!!

[dirk pitt]

so I set an example by bringing one of the first concerns I had:
I suggest that we follow this presentation of the problems:

problem: in reduced mode (at night for example) the ambient temperature drops much lower than what I asked.

type of regulator concerned:TEM (gray) and E1224 (white)

causes:: there is a limit of taking into account the lowering which cuts the boiler if the outside temperature is higher than this value. Factory default, this value is set to -5 °
so if it is a little -3 ° or -4 ° at night, no heating at all so it can go down to 13 or 14 indoors.

remedy: easy, just go back to parameter 3-4 of the TEM regul or the parameter reduced lim of the E1224 has a coherent value compared to the insulation of your house (with me it is 5 °)

voila, to you

[dirk pitt]

come on, a little second:

problem: I have a room thermostat but the set temperature that I request with the dial is not respected (significant differences> 2 °)

type of regulator concerned: TEM (gray) and E1224 (white)

causes: different causes depending on the regulation:
on TEM: parameter 3-6 remained at 0. the regul therefore does not take into account the difference between the ambient setpoint and the actual ambient.

on the E1224: several possible reasons that can add up:
1-same reason as for TEM: the parameter compensation of the heating menu remained at 0.
2- there is obviously a bugs in the formula for calculating the flow temperature which does not correctly take into account the ambient setpoint. (even without compensation)
the formula for calculating the flow temperature should be:
TD = P * (15-TE) + PB + (1+P) * (CA-20) but this term (1 + P) has been forgotten.
with
TD = flow temperature
P = heating slope
TE = outside temperature
PB = base point
CA = ambient setpoint

remedy:
on TEM: pass parameter 3-6 to a value between 1 and 5 to take more or less account of the offset.
on the E1224: 1st case, pass the compensation to a value from 1 to 5
2nd case, increase the compensation even more to over-compensate the problem (I'm not sure that's enough)

[Christophe]

(

Great. Awesome. Well done.

You know we have SMILEYS to express this kind of feelings, I leave you between specialists now! )

[Pear Belle Helene]

Very good discussion thread on the other hand I would surely not be up to par technically speaking as you can imagine.

For me the concern is the parameter 3-6 which was on factory zero, which I put at 5 but in spite of all that does not react as much as I would like because when it freezes outside like today but that the sun is shining, my kitchen immediately rises to 22 ° and the radiators are hot.

For the rest I have not yet copied all my statements to the clean (lack of time sorry), and I am afraid by reading you that it is badly adjusted but I do not have your skills to be sure and do the other statements.

And if they could make the gray box easier to adjust for the lamba user that I am (and blonde moreover) it would be good because there I don't even dare to go and start changing the heating time on the we that I would like to reduce by an hour.

But even with all that I am very happy with my boiler.

[Did67]

come on, a little second:

problem: I have a room thermostat but the set temperature that I request with the dial is not respected (significant differences> 2 °)

type of regulator concerned: TEM (gray)

causes: different causes depending on the regulation:
on TEM: parameter 3-6 remained at 0.

You put that one on me too! And the beautiful Hélène ditto ...

PS: do you have both regul? Are you a collector?

PSPS: I would like to know how many Okofen room sensors there are with a compensation factor of 0! I sent a nice email to my heating engineer so that he corrected his other clients ...

This weekend, I will give you a sheet on my incorrigible "oscillations" with the TEM ...

[Did67]

(

Great. Awesome. Well done.

You know we have SMILEYS to express this kind of feelings, I leave you between specialists now! )

Yeah yeah, I saw.

Can I say, without being thrown away, that these things don't suit me? For no reason ... If: too modern! Like the SMS language (even if it can be funny sometimes).

Is it mandatory to speak Smiley or can we chat in good old French ???

[Olivier63]

Hello everyone,

Thanks to Dirk for this new post.
Despite my spelling mistakes, I'm for good old French with a few smileys to brighten up the posts ...

I add another problem which obviously relates to the calculation of the temperature.

Problem: Without a room thermostat, in reduced mode (17 ° C for example), the room temperature does not drop sufficiently.

Type of regulator concerned:E1224 (white)

Reason: The temperature calculation is incorrect.
Dirk, it seems to me that the formula should be TD = P * (15-TE) + PB +(1 + P)* (CA-20) and not TD = P * (15-TE) + PB +P* (CA-20)

Remedy: For everyday use, simply lower the requested temperature further.
For example, in my case (P = 0.88; TE = 3; PB = 26; CA = 17), the temperature should be 30.2 ° C while it is 32.6 ° C. It is therefore necessary to set the reduced temperature to 14.6 ° C to have the 30.2 ° C normally calculated.
On the other hand for a prolonged absence (new option of this regul), if one wishes to position the temperature in frost-free (10 ° C), the temperature should be 17.6 ° C then what is 25.6 ° C. It would therefore be necessary to adjust the reduced temperature to 2 ° C to have the 17.6 ° C normally calculated.
The problem is that I can't fall below 10 ° C ... THINGS TO DO



I am creating a new post to find out the differences between TEM regulators (gray) and E1224 (white).


A plus, Olivier.