Replacing Centaurplus C17 with Migenie Wish 1 T714R on a Ideal Evo HE C22

[PJW2273]

Hi All,

Before I embark on this project I wanted to check my understanding of the wiring. Both programmers use an industry standard backplate. The centaurplus is currently wired as follows:

E = Earth
N = Neutral
L = Live
1 =
2 = Brown (Boiler Live out)
3 =
4 = Blue (Switched live return)
(diagram 4 here: http://www.free-instruction-manuals.com/pdf/p3133585.pdf)

The MiGenie Manual shows the following connections
E = Earth
N = Neutral
L = Live
1 = Live (looped from L)/Common)
2 = CH OFF
3 = CH ON
4 =
As shown here: http://www.draytoncontrols.co.uk/sites/default/files/IG. wish 2.pdf

As the terminology is lightly different I am not 100% sure how to adapt the backplate. My first Guess is to leave 2 as is, and move 4 to 3:
E = Earth
N = Neutral
L = Live
1 = Live (looped from L)
2 = CH OFF (Brown)
3 = CH ON (Blue)
4 =

Could anyone advise if this would be correct or if I am wrong?

Thanks

 

[PJW2273]

After some further reading and research I am not sure I have it right. I'm now thinking the wiring should be:
E = Earth
N = Neutral
L = Live
1 = Common (Brown)
2 =
3 = CH ON (Blue)
4 =

Based on another thread where a CentaurPlus C17 was swapped with a Hive V2
(https://www.diynot.com/diy/threads/horstmann-to-hive-wiring-check-please.476261/#post-3830888)

 

[Echo the husky]

Yes to the second attempt:

After some further reading and research I am not sure I have it right. I'm now thinking the wiring should be:
E = Earth
N = Neutral
L = Live
1 = Common (Brown)
2 =
3 = CH ON (Blue)
4 =

 

[PJW2273]

Many thanks Echo the husky,

2nd attempt works beautifully.

 

[Leo McQ]

The MiGenie Manual shows the following connections
E = Earth
N = Neutral
L = Live
1 = Live (looped from L)/Common)
2 = CH OFF
3 = CH ON
4 =


Hi,
can you tell me if you used the link from L to 1?
I have fitted a MiGenie wish and the boiler won't turn off when the room reaches temperature. Might it be something to do with the link I have left in?

 

[Echo the husky]

The heating always on in likely from the link left in. You haven't said what connections you have. Do not install a link in the migenie unless you are certain it is needed, or you might destroy the boiler PCB. It would be rather helpful to know what boiler you have...

 

[Leo McQ]

Hi Echo,
the boiler is an Ideal Logic+ Combi C30.

I removed the link and the boiler is working fine now. Thankfully no damage to the PCB.

But for clarity....
the connections at the genie are...
N = Neutral
L = Live
1 = Common (Showing a link between here and terminal L)
2 = Off (Normally closed)
3 = On (Normally open)
4 = Not used

I have connected the two cores from the room stat/timer terminals at the boiler to the 1 Common and 3 On (Normally Open) terminals at the genie.