Replace Pottorton EP6002 (Version no longer available)

[sbarrick]

Hi

I'm looking to replace my faulty Potterton EP6002 programmer. I've also found out that they are no longer available, I looked at some replacements Siemens RWB2007 & the Honeywell ST9400C, but the wiring on the EP6002 look to have extra wires. What do I do with these. See attached A & C

I also understand the bridge between L & 5 can be removed.

Any help will be greatly appreciated.

If anyone can suggest a replacement programmer and advise the wire mapping layout from the the EP6002 to the replacement that would also be great.

 

[gaspro1981]

A through to d are just spare terminal connectors

You can fit pretty much any programmer with a re wiring of the backplate

The horstmann channel plus 27xl is a decent option

http://www.horstmann.co.uk/downloads/ElectronicDocuments/Central-Heating/H21-27-27ZXL-ISeries2.pdf

 

[gaspro1981]

What other external controls and system layout do you have ??

 

[Andygasman2010]

Terminals A to D a spare and are not used for the timer itself. You just need to make sure the wires in them stay connected with standard electrical choc-blocks behind your new timer back plate.

L, N and earth are obvious.

1 is HW off (not sure why yours has two wires in it)

3 is HW on

4 is CH on

5 is the link to give a live to one of the relays, you won't need this with a new timer.

 

[sbarrick]

Thanks all for your prompt replies and support. Great help.