Combi boiler cylinder stat

[Tomm]

Hi all,

i I have my first combi to wore up next week. I have got the drawing here for the controller and it gives me terminals for a hot water cylinde stat,The system has no cylinder in it s it's a combi so I assume that somewhere in the boiler it has a built in stat? Like I said this is my first boiler job so I am a bit unsure with regards to the stat. I am confident with the wiring of the valves and room stats etc. Any advise would be appreciated.

thanks

 

[ImpededLoop]

Re: Combo boiler cylinder stat

If you know what type of boiler it is, download the installation manual for it as that will tell you what you need to know.

A combi only requires a one channel programmer and room stat for the heating. The hot water doesn't need any external control as it just functions when a hot tap is opened using sensors inside the boiler.

 

[Tomm]

Thanks, to provide a bit more information, it's a second hand oil combi boiler I'm told as if not yet been to the job. The heating has been split into two zones with 2-port valves. I will be putting two stats upstairs and then one downstairs to control the valves. I will wire it in s-plan plus. It's the hot water I'm not sure about as its my first boiler job. Any help or tips would be great

 

[Leesparkykent]

what drawing are you referring to? as you say you have the drawing for the controller.

 

[dansk]

If it's oil combi? Then don't worry about the hot water the boiler will take care of that once anyone turns on a tap the boiler will fire up.

if you get to site and see a tank then just wire the two port up to timer via the cylinder tank stat

if you understand how to wire s-plans etc then I don't think you have anything to worry about.

combi boilers make wiring easier.