Altecnic Eres automatic bypass valve correct setting number

[John.g]

The setting index is just a guide, this is why you set it up "practically", you be better off starting from scratch again as its important to get it just right especially with little or no change in the pump head to play around with. So maybe shut it again for a hour or so to allow the pipe to cool down, shut off most of your rads, (did you do this originally?) adjust setting until pipe just starts to get hot then back off no more than 1/2 turn, 1/4 might be better, re open rads.

 

[big john hog]

Dear John,

I think that your advice is best to start from scratch when cold. I may well contact the local plumber and ask him to set it up for me.Many thanks once again for your expert help

 

[John.g]

No need for your plumber, , just wind the ABV shut and allow the pipe to cool down then just repeat what you have done earlier.

 

[big john hog]

Dear John,g:

Sounds like a good idea just let it cool down and repeat process

 

[John.g]

Yes, just take your time, the only downside of excessive by pass is that it raises the boiler return temperature and you lose a bit of efficiency.