Drayton Wiser Wiring from ESI

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Switching from an ESI ESRTP4RF+ to a Drayton Wiser with a Worcester Combi boiler (single zone/one channel)

The current wall plate wiring looks identical to the Drayton Wiser scheme, but just wanted to check if it would be plug n play.

Attached photos of current wiring on wall plate.

I currently have the matching wireless ESI thermostat to control the central heating. Should I just disconnect the batteries from the thermostat before I make the switch? Or is there anything else that needs to be done?

Any advice appreciated.
 

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The current wall plate wiring looks identical to the Drayton Wiser scheme, but just wanted to check if it would be plug n play.
Not quite plug n play!

The Drayton backplate has 6 connections (+earth), whereas the ESI has 8.
The terminals used aren't quite the same either:

N to N
L to L
Add a link wire from L to terminal 1 (as on the ESI)
But move the green/yellow wire from terminal 2 to terminal 3 on the Drayton.

You also need to oversleeve the green/yellow wire, in brown, to denote it's a switched live (something that is forbidden under current regs).
 
You also need to oversleeve the green/yellow wire, in brown, to denote it's a switched live (something that is forbidden under current regs).
Awesome, thanks for the input - was hoping that I wouldn't have to swap out the backplate so I could easily change my mind if I wanted to revert to the old system but oh well.

How would this effect me in the future? Failing inspections when selling the house?
 
How would this effect me in the future? Failing inspections when selling the house?
No biggie - these regs aren't retrospective.
Any report would just say not to current regs.
Alternatively, it may be a relatively simple task to exchange the cable for a 3 core and earth flex.
 
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Apologies for the hijacking, but may be worthwhile in the same thread in case anyone else comes across it.
About to do a similar swap from the esrtp4rf+ to a Drayton but with a slightly different wiring ( boiler fitter passed through power via the backplate).
I've just got linked L/N/G going to the boiler, and a separate wire in 1 (COM) and 2 (switched on).

I'd assume with mine it's the same situation of like for like on the Drayton plate except 2 (black) moving to 3.
 

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