Ask The Trades - Room thermostat

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Room thermostat (Read 3298 times)

spongebob GDPR opt-out	Room thermostat Apr 17^th, 2005, 9:19pm Baxi 105e combi boiler. Currently only an onboard time clock bringing this boiler on and off. Does wiring in a new room thermostat come under Part P or is a CORGI guy required? If not what make of Stat is most compatible with this make of boiler?
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bripl GDPR opt-out	Re: Room thermostat Reply #1 - Apr 17^th, 2005, 9:28pm sparks and part p no need for corgi as the gas/flue are not being disturbed you may not even need a sparks if you are competant to do it but i am sure one of the sparks on the forum will give the correct advice
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chtechie GDPR opt-out	Re: Room thermostat Reply #2 - Apr 17^th, 2005, 10:57pm Only part pee if the cable enters a forbidden area - that doesn't mean you can ignore BS 7671 - As you've got a timeclock already a 4360 Honeywell or equiv is what you need.
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spongebob GDPR opt-out	Re: Room thermostat Reply #3 - Apr 18^th, 2005, 12:25am Thanks for the info guys.
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Lectrician Administrator Trade Member Author Offline Ask The Trades Posts: 8814 Total Thanks: 109 For This Post: 0 Braunton, North Devon United Kingdom Gender: Trade: Electrician	Re: Room thermostat Reply #4 - Apr 18^th, 2005, 7:48am Some boilers with internal clocks and controls (most combies) require volt free contacts at the stat. This is due to 12v electronics inside the boiler.
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chtechie GDPR opt-out Total Thanks: 109 For This Post: 0	Re: Room thermostat Reply #5 - Apr 20^th, 2005, 9:52pm Agreed lectrician - You can use 2 wires only to terminals 1 & 3 on a Honeywell - A more modern (but costs more) option is the Danfoss TP5. There are reasons why the Honeywell is not perfect used as a volt free stat but they're bomb proof construction.
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