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- 25 Feb 2025
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Hi
I have a heat only ideal boiler which currently has an old Honeywell ST6400C timer & Thermostat which I wish to upgrade to a Nest Gen3 that I have brought I’ve looked through the forum and seen that the Lives need to be linked across but just to make sure I wire this correct first time could you advise on the correct terminals that the Honeywell transpires across to the nest
Thanks in advance attached is images from my current Honeywell
I have a heat only ideal boiler which currently has an old Honeywell ST6400C timer & Thermostat which I wish to upgrade to a Nest Gen3 that I have brought I’ve looked through the forum and seen that the Lives need to be linked across but just to make sure I wire this correct first time could you advise on the correct terminals that the Honeywell transpires across to the nest
Thanks in advance attached is images from my current Honeywell