The Boiler operation

[Razmatazz]

Hi every one
I just want to know the operation of the Baxi 105e combi boiler. And most other combi boiler work the same way is it or no
How the boiler work when you demand for hot water or heating .
Correct me if am wrong this is for me and other to know how the combi boiler work
When you turn on the hot water what happen from beginning to last.

1) Turn on water
2) The differential valve sensing water flow and posh the pin out to on microswich

3) The microswich send the signal to the pump to start
4) The pump send the signal to fan to start
5) The fan send the signal to air pressure switch
6) The air pressure switch send the signal to the gas valve to open
7) The gas valve send the signal to the spark generator to spark.

This the way to complete cycle, if any of this step fail the boiler won’t fire
When you turn of the water it will do the reverse action.
Could you let me know if any of these steps are wrong

 

[bengasman]

Different makes have different ways to come to the same result. It takes more than a few lines on a forum to become a breakdown engineer.