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Home > Archive > Electrical Engineering > January 2008 > modulating gas burner
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modulating gas burner
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| Eyckmans Albert 2008-01-16, 1:25 pm |
| Hello,
Does anyone knows how the hardware (and software) of a regulator to start
modulating the gasburner of central heating works.
I mean modulating on the boilers own thermostate (set on 60°C).
The boiler measuring points are suction and return temperature.
The signal to start modulating go to the boilerfan speedregulator with on
his turn regulate the gasvalve and this mixture goes through a venturi ad
the premix burner.
Thanks in advance
Albert
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| Andrew Gabriel 2008-01-16, 8:25 pm |
| In article <%Zpjj.31513$ME6.2890887@phobos.telenet-ops.be>,
"Eyckmans Albert" <albert.eyckmans@pandora.be> writes:
> Hello,
>
>
>
> Does anyone knows how the hardware (and software) of a regulator to start
> modulating the gasburner of central heating works.
>
> I mean modulating on the boilers own thermostate (set on 60°C).
>
> The boiler measuring points are suction and return temperature.
>
> The signal to start modulating go to the boilerfan speedregulator with on
> his turn regulate the gasvalve and this mixture goes through a venturi ad
> the premix burner.
What do you want to know? You have described it correctly.
The fan speed is set according to the burner power required.
The venturi generates a negative pressure according to the
air flow generated by the fan. This pressure is passed to
the gas valve and used to regulate the flow of gas.
There are other schemes too which provide a proportional
voltage to a specially designed gas valve, but I'm not
familiar with how that works.
--
Andrew Gabriel
[email address is not usable -- followup in the newsgroup]
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| Eyckmans Albert 2008-01-17, 9:25 am |
| I want to know how the controller works, the electronic circuit, which
building blocks ( IC etc) are possibly used to make it work.
The control unit used in my cv boiler which control a lot more is from
Honeywell (MCBA 1461 V3.1) but the agent in my country won't give any
information on it.
Albert
"Eyckmans Albert" <albert.eyckmans@pandora.be> schreef in bericht
news:%Zpjj.31513$ME6.2890887@phobos.telenet-ops.be...
> Hello,
>
>
>
> Does anyone knows how the hardware (and software) of a regulator to start
> modulating the gasburner of central heating works.
>
> I mean modulating on the boilers own thermostate (set on 60°C).
>
> The boiler measuring points are suction and return temperature.
>
> The signal to start modulating go to the boilerfan speedregulator with on
> his turn regulate the gasvalve and this mixture goes through a venturi ad
> the premix burner.
>
>
>
> Thanks in advance
>
>
>
> Albert
>
>
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