Direct replacement for my old Potterton EP2001 programmer

[MacWilliam]

Thank you both for your answers

At Ermintrude

Jumpers were present on the EP2001. Nothing to be seen at the back of the EP2. Seems that those did the job then.

At Nostrum

Looks like I'll have to rewire it at some point. I did wire it myself ... a long, long time ago. For now I've duplicated the timing HW and CH and it does the job on auto.

 

[Chalked]

Is there a gravity/fully pumped switch on the back?

 

[MacWilliam]

Is there a gravity/fully pumped switch on the back?

Cheers Chalked

Not on the EP2... But... there is a stage in setting up that asks whether the system is fully pumped or gravity. I choose the latter as there are two pump present on the system. I have been wondering whether this is the issue as the first pump really replaces the gravity feed .

What do you think?

 

[Chalked]

Switch it to gravity. This will bring both on at once.

 

[Ermintrude]

No put it pumped! That's what jumpers are for !

 

[Chalked]

No put it pumped! That's what jumpers are for !

Hi Ermintrude
he needs the gas boiler, circulation pump and the heating pump to come on together. When heating Is asked for.
hot water is boiler and circulation pump. ( dunsley neutraliser fitted so gravity from that)

 

[Ermintrude]

Oh oooops. Perhaps a better control setup with a pipe stat to swing in pump on neutraliser would be a better solution?

 

[Chalked]

Oh oooops. Perhaps a better control setup with a pipe stat to swing in pump on neutraliser would be a better solution?

Agreed!
i presume he turns the gas boiler off when running solid fuel?

 

[Ermintrude]

Narr that would be sensible.