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Dave Plowman (News) Dave Plowman (News) is offline
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Default central heating controls wiring

In article ,
John wrote:
I think the best option would be to put your new Drayton Digistat 3
on Ebay or get a refund and get one of these
http://www.alpha-boilers.co.uk/index.asp?wpid=109 which is
specifically designed for Alpha boilers. I've got one and it's
absolutely brilliant.


The one it's replacing doesn't seem to have been a 'special'. What's so
different about Alpha boilers?


The thermostat is a changeover switch. The live feed is switched to
"Call for heat" when the room is below temp and to "Satisfied" when it
hits the temp. Therefore the call for heat needs to be connected to the
pump / boiler .


The Drayton Digistat 3 is also a changeover type. So if the system worked
fine with the original Honeywell it will too with the Digistat.

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Dave Plowman London SW
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