Potterton Suprima 30 update

[sai_2]

I thought I'd start a new thread as the old problem was solved (air-lock).

So I'm back to the original problem - boiler tripping out.

BGas came around and said something new this time. The pipes off the Suprima 30 are 22m and that doesn't conform to their standards, so they won't touch it.

My options are to change the pipes to the cylinder for 35 mm or install a combi.

Anyway, in the meantime, he turned the pump down to 1 and the boiler up to max and to be honest, its working perfectly now!

The sytem is:
Potterton Suptrima 30 in a 2 bed flat
4 rads (3 with TRVs)
cylinder connected via tapstat valve
pump on the return
boiler to cylinder is around 6 metres (its 22m all the way)
rads have smaller piping however, but all got really hot after he set the pump to 1 and boiler to max.

So should I start budgeting for a pipe upgrade or just leave it?

Thanks.

 

[kevplumb]

35mm on a 30,000 btu boiler

bit OTT

 

[sai_2]

That's what I thought. I'm sure he was looking at a Suprima 100 or something..

 

[Baxi-Remeha]

show b g the instructions and thell them where to shove their 35mm pip, suprima 30 - 60 minimum pipe work is 22mm

http://www.partsarena.com/baxi/

 

[sai_2]

Thanks - I've been reading a good article here too:

http://www.diydata.com/planning/ch_design/sizing_pipes.htm

22mm should be more than sufficient my setup! If it trips again, I think I'll take a look at the PCB..

 

[Baxi-Remeha]

what area do u live in??

 

[sai_2]

Hi,
I am in Ealing in west London. Why do you ask.. Something to do with hard water or pressure?