s plan with megaflow

[stidge]

Hi all, system is as above, have a es-ctd cylinder stat with c,1,2. whats confusing me is all the schematics show this stat with y plan. ie with an extra cable from programmer hw off which links to satisfied on cyl stat !! do I need to incorporate this or just wire as normal s plan into cyl stat using common and 1 or 2 ? please help

 

[jackhammerJIM]

an S plan does not require the extra cable ...

 

[stidge]

cheers jim, do I just wire the stat as norm ?

 

[robsparky1975]

If its s plan then you have 2 valves,y plan 1 valve,if s plan wire as usual,C and 1.

 

[stidge]

yes robspark , but as theres a megafow cylinder do I not need to wire the stat (dual) as I believe it has fail safe for overheating ? or am I talking bo***cks ???

 

[Richard Burns]

Using C and 1 means that stat will stay on until up to temperature and then switch off.
Using C and 2 would mean the stat would come on when the set temperature was reached.
In either case if the limit temperature were reached the over limit would switch the stat off.

 

[stidge]

thanks for all your help lads, cheers