adjust burner pressure on vaillant 242 turbomax

[onlyfitidealboilers]

how? do any of you guys know ? is it the big nut on modureg for high
and the small nut for min?

all the book says is no adjustment needed as there factory set
but when cheaking them there to cock, so adjustment is needed?

may i just remind you this blr has an aqua sensor, i would be asking vaillant but carnt get in touch. do any of you know a good number for technical

cheers lads

 

[gas4you]

I think you are correct.

If the burner pressure is out then it will need to be set back to MI's.

You will soon see whilst adjusting if this is incorrect.

 

[onlyfitidealboilers]

thanks dave, am i right in thinking once ya pull 1 lead off the modureg an this drops to minimum, will ya only be able to increase minimum pressure with just the one nut ie the big one wouldn't do anythink this is how il know its the small one??

reason i ask is iv got to go back this week..

cheers