Heating circuit problem on wood buffer tank

Heating, insulation, ventilation, VMC, cooling ... short thermal comfort. Insulation, wood energy, heat pumps but also electricity, gas or oil, VMC ... Help in choosing and implementation, problem solving, optimization, tips and tricks ...
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Did67
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by Did67 » 11/11/15, 12:59

The circulator would run 24 hours a day, 24 days a year ??? [it would be an electric "sinkhole"!]

The instructions on page 3 speak of a "service switch" which must be in position 3.

To my understanding, this is not the gearbox that there is on the circulator. But I'm not sure. Is the circulator on speed 3?
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Philippe Schutt
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by Philippe Schutt » 11/11/15, 20:49

What is the boiler?

Personally, I put a capillary thermostat set at 50 ° at the top of the boiler to start the laddomat circulator. I have also already used a flue thermostat set to 100 °.

I join Did67: is this circulator running? If it is connected directly to the switchboard, it may have a circuit breaker just for it, which serves as a switch?

The history of the differential regulator is in my opinion a smoke screen.
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w.robert35
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by w.robert35 » 12/11/15, 09:03

hello here I am again ..
I just started the boiler.
all the dials as well as that of the boiler is at 12 °.
ditto for the buffer tank.

I will keep you informed as the development progresses.
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by w.robert35 » 12/11/15, 09:20

I noticed this

since the boiler rises and has not yet reached the t ° for the circuit and well the pressure rises quite a lot.

the buffer tank and placed after the recycling circuit.
From where my question the craftsman would have it badly to place the expansion vessel.

should not he put it for example where the purge of the boiler is located if we can of course.
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by Did67 » 12/11/15, 09:38

In a circuit, the pressure is the same everywhere, at a standstill and at the same level (height).

However, you risk having an expansion tank problem in addition!
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by Did67 » 12/11/15, 09:41

Philippe Schutt wrote:
have also used a flue thermostat set to 100 °.



Laddomat indeed recommends the flue thermostat, which is logical: there is only a need for an anti-condensation system when there is a fire!
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w.robert35
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by w.robert35 » 12/11/15, 10:46

I have a smoke thermostat

the craftsman set it on hold on well 25

I'll make you a photo.
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by Did67 » 12/11/15, 10:52

So the laddomat's circulator should run almost all the time! ??? [Unless it is tripped]

To check, with the blow of the screwdriver-stethoscope. And check speed 3 on the circulator.

This "over-adjustment", if it is not economical in electricity, does not explain the problem that we are trying to solve! The effect goes in the opposite direction.

PS: circulators are one of the "big electrical consumers" in a house. Not that their power is high, but they run for many hours, sometimes almost continuously 24 hours a day, during heating periods. It's a bit like the "watches" of devices, but with powers 24 times higher anyway! So it's worth looking into! Unless you like to subsidize EPRs!
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by w.robert35 » 12/11/15, 11:00

yes-yes it rotates constantly and in speed 3
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by Did67 » 12/11/15, 11:03

So 1) it consumes, but 2) does not explain the problem! It's already that.
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