Nest Heat Link E from Honeywell R6660D

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Hi guys,

Just wondering if I could have some help on which wires go install and which to isolate off.

On the Nest website it has a chart about different thermostats and which wires to connect to the ‘C’ and ‘no’
Is this correct for the way my current R6660D if wired up?

If not please could someone help identify which ones I need to connect

Thanks
 

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Nest-e is battery powered so the existing mains supply wires in N & L are not required. These should be insulated and isolated safely. Normally I would put them in a a couple of separate new screw terminals and tuck them out of the way. The earth wire should be isolated in the same manner.

Then:

The black wire in A goes to Nest C

The grey wire in B goes to Nest NO
 

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