Replacing Drayton SM1 with LP711 | UK Plumbers Forums | Plumbers Forums
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Discuss Replacing Drayton SM1 with LP711 in the UK Plumbers Forums area at Plumbers Forums

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

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