Heating, insulation, ventilation, VMC, cooling ...Easypell boiler adjustment

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Thomas80
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Easypell boiler adjustment

Unread Messageby Thomas80 » 04/12/18, 14:12

Hi all,

I have a new pellet boiler Easypell (low-cost product Okofen) with an outdoor sensor and a room thermostat (Easytronic system, I think it's the same as Okofen's: white, big knob and two "Esc" and "Enter" buttons) to replace a fuel boiler.
My house consists of 2 floors of 100 m² each with large cast iron radiators on the ground floor (with thermostatic valves all fully open) and radiators steel R + 1.

I am trying to make adjustments to get the right temperature in the living room.
I have to ask 21,5 ° C to get 19,5 (temperature taken by an electronic thermometer).

So I read on the forum the various settings to make and I attack the settings: Fixed point 35 ° C and slope to 1,3.

As the temperature is lower than the requested one I increase my fixed point to 40 ° C and decrease my slope to 1,1. I'm waiting for 24h. No changes in room temperature. The temperature at the boiler outlet has increased.
I increase again my fixed point and go to 42,5 ° C (the max is at 45 ° C) and lower my slope to 1.0. Still no change.

I am looking for a little and I realize that the set room temperature of 21,5 ° C corresponds quite to the measured ambient temperature 21,5 ° C by the TA. I am looking for another thermometer that confirms that it is only 19,5 ° C in the room.
There I am lost. The temperature measured by the thermostat is therefore wrong ????? I am therefore obliged to ask 21,5 ° C to have 19,5 ° C ????

Could someone please enlighten me?

Thank you in advance
Thomas
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izentrop
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Re: Easypell boiler setting

Unread Messageby izentrop » 04/12/18, 14:21

Hello,
If it is as with the setting of the water law on the heat pump, the set temperature is the flow temperature of the hot water circuit.
In my house, it is set to 26 ° to have about 20 ° of temperature in the control room with faucet fully open.

The boiler regulates according to the outside temperature and the return of water.
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Thomas80
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Re: Easypell boiler setting

Unread Messageby Thomas80 » 04/12/18, 15:38

Thank you for your reply.
But I do not think that this set-point ambient temperature corresponds to the water flow temperature of the boiler which is around 49 ° C today.

Thomas
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Re: Easypell boiler setting

Unread Messageby Did67 » 04/12/18, 17:30

If I understand correctly, you have a "room thermostat", located in the main room. And an outdoor probe.

The difference you find is set somewhere: a room sensor is a thermistor (variable resistance depending on the temperature). Added to the resistance of the probe (variable), that of the cable used (fixed), depending on the distance and thickness of the cable.

It is therefore necessary to parameterize the internal temperature sensor (or then operate knowing that there is a "technical" difference of 2 °).

I do not have it in mind anymore, but on the ancient Okofen regulation, this parameter existed somewhere. The easiest way to start is to ask your installer. It's his job. If he does not know, we can always look for a "notice fitter"(Generally, these settings are" reserved "for installers and are not mentioned in the manual"user"- it's normal, he did not touch!).
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Re: Easypell boiler setting

Unread Messageby Pilpoill » 04/12/18, 18:28

Hello,

If it's like on a SmartXS, the probe settings can be accessed in the technician menu.

EDIT: I confirm, visual of the Easypell manual
501BF3EC-D38A-4887-8485-266FB9248A32.jpeg
501BF3EC-D38A-4887-8485-266FB9248A32.jpeg (254.46 KIO) Accessed 477 times



A clarification may be useful ... When looking for its water law, make sure that the room thermostat provides a correction of 0.
Last edited by Pilpoill the 04 / 12 / 18, 18: 52, 1 edited once.
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Thomas80
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Re: Easypell boiler setting

Unread Messageby Thomas80 » 04/12/18, 18:45

Ok thank you I will contact my installer and ignore this gap.
To finish my adjustment and to save my pellets, I must therefore lower my fixed point little by little as long as I have the required temperature (taking into account of course the difference of 2 degrees) in order to obtain the desired comfort with the water. less hot possible. I've just ?
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Re: Easypell boiler setting

Unread Messageby Pilpoill » 04/12/18, 18:57

Without wanting to insist, are you sure you have set the compensation on "0"?

At constant outside temperature, I find it odd that your various changes over several days have not shown any change in indoor temperature.
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Re: Easypell boiler setting

Unread Messageby Did67 » 04/12/18, 19:00

I confirm, it's very important.

Otherwise, the room sensor corrects "automatically". And whatever you put, you end up with the instructions! Because the system corrects.

So yes, the time to calibrate your curve, it is necessary to put the factor of the probe on 0 (this factor determines with which "force" the probe must correct: 0 = no correction; 10 = very strong correction).
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Thomas80
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Re: Easypell boiler setting

Unread Messageby Thomas80 » 04/12/18, 20:12

Thank you Pilpoill and Did67 for these precisions far from useless because I had not actually put the compensation on 0. : roll:

For the problem of temperature, I will ask the technician access code to my installer to try to modify that.

Thank you Pilpoill for the image of the manual but unfortunately I have the old model of the probe (much less design elsewhere) so it does not fit. I will seek when I have it.

Thomas
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Re: Easypell boiler setting

Unread Messageby Philippe Schutt » 06/12/18, 20:40

The fixed point being the external T ° at which the boiler must start to heat, it should rather be towards 21 ° ...
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