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Will be trying stems second diagram shortly. My relay is a changeover with 2 sets of contacts so would be interested in s plan option for a later enhancement particularly if i can use pumps instead of valves....can i?

Thanks for replies guys. Stem - think the fact that flow switch doesn't have a changeover connection is what's been stumping me. Thanks for diagram. Dcawkwell - will look into that and make a diagram first. Matt1e - just trying to control both dhw and ch using 3 port valve. This valve...

Hi, Im trying to workout how to wire up 3 way motorized valve. I have a system boiler that i have effectively converted to a combi using a plate heat exchanger. The 2 issues are, the boiler can only be controlled via the room stat connection so effectively a short across the 2 terminals, rather...

My email address is [email protected] - Ian

I actually have the system version and have just spent the weekend effectively converting it to a combi using an external heat exchanger. Did you purchase this recently as I'm sure you know Trianco was bought out some years ago and they dropped the gas boiler side. Thus parts are all but...

Kilpheder are you still on this forum. I have same boiler and love to ask you couple of questions

Kilpheder I wanted to ask some questions re your boiler as have the sb model. Not sure if this gets to you

Thanks for the info. My fault turned out to be a pin hole in the chamber which was leaking water on to the electrode. Repaired the hole and got a new electrode. It's an Ariston part which that my local boiler spares located for me. However min charge was £50. Then when part came in, I looked up...

Thought I'd add a diagram to make it clearer. There's a few more bits to it but gets too "busy" if adding them all.

Have a DIY heat bank set up which for me works very well(before you bring me down!!) My only issue is there seems to be air bubbles forming in the pipework and being in the loft above my bedroom, makes a noise when I'm trying to sleep. So basically from the boiler I have a flow pipe that...

oops, that [email protected] Cheers ir50

Dr Drivel Wanted to ask for your help on a couple of points re my DIY heat bank but managed to loose your email address you sent me couple of years ago on the SF forum. Would you be willing to email again at [email protected] Cheers ir50

Hi jmbradley. When you got you new board for your Trianco boiler, I assume it was from Ariston. I'm trying to find if Ariston built the Optima based on one of their own models. Do you know the part number of the board you received that may hold a clue. Basically I've been told by the people that...

Great.javascript:emoticon(':(') Phoned up company that bought out Trianco but they didn't take over the gas side. As a result no spares available. I had heard and they did confirm that Ariston made some of the components(which confirms the Italian connection). Ariston technical in UK no nothing...

Bought this one as Trianco was recommended as being a good British company making reliable boilers using easily available parts such as Grundfos pump etc. Believe they specialised more in oil boilers though. Boiler itself looks very solid and has all the bells and whistles! Think I only paid...

jmbradley, I know it was a year ago but I'm having the same problem with the same boiler. At the moment its intermittent but getting worse. I must admit the pipe was frozen when we had the really cold spell in November but OK now. Did you find out what it was? Wondering if frozen pipe has...