Replacing Drayton SM1 with LP711

[Donhel]

Hello I'm new here so I hope this is in the correct section. I'm looking to replace my very old Drayton SM1 mech timer with a Drayton LP711. Would anyone know is the back plate wiring exactly the same is it a straight swap or do I need to change anything.??
Thanks.

 

[ShaunCorbs]

Straight swap might need to link l-1 depending on how your existing one is wired or might be already done / wire in 1

 

[Murdoch]

Your best bet would be to call Drayton technical