My question therfore is ,has the Sunvic 207xls also got 8 bayonets on the back for easy insertion onto the wiring plate,
and will that plate need to be re-wired in the same way Matt advises?.
Alternatively,is there another switch on the market that would suit?
hi Ronedad
short and sweet answers to the above 3 questions are
no
yes
yes and no
yes in regards to there are many that will operate your system, no in regards to getting a one that will plug into the same back plate(unless its another 410 f4)
basically,all you need to do is get a new programmer then use the installation manual that comes with it to match up the terminals with my earlier post then transfer the wires across to the new back plate
any cables that are connected to terminals 4 & 5 on the sangamo are common and connect to neutral on the new programmer,anything that is connected to 6 needs to be removed (it will almost certainly be a link to another terminal)
Be aware that depending on the programmer you get you may need to add links this will be documented in your manual
the connections that will be relevant to you on the sangamo are
1 = hot water on.
2 = hot water off.(but not if you have s-plan, ie a 2port valve for HW and another one for CH}
3 = live
4 & 5= neutral
8 = CH on
if you get stuck then post back,I'm not always on here regular but there will be many that will give guidance if needed,
D_Hailsham
Mandate
seco services
to name a few, are all conversant with heating controls
matt