Thanks to all those who posted useful advice to my first question. I thought maybe some additional infromation would be useful. I am trying to replace the room thermostat for my central heating as the current one doesn't function, I suspect this is due to a break in the wire between boiler and stat. My origianl question was where does the Thermostat wire too, I have an apollo thorn EMI boiler and the timer programer is a switchmaster 400 ( pull on/off dial ). There are three wires running into the switchmaster, the power and two others I assume the pump feed and boiler. I have a wiring diagram for the boiler but the room stat is not on it, unless it looks like something other the usual Honeywell dial Room thermostat.
Someone mentioned a digital thermostat, would that be too advanced for my system, I know it's not the most uptodate boiler in the world, but it still works.
Thanks for any advice,
EP
2007-02-27 01:54:22 · 3 answers · asked by exploding_pants 2 in Home & Garden ➔ Do It Yourself (DIY)
On the therm. there will be a RH that is were the red wire goes and there will be a W that is were the white wire goes and the other wire prob. is a green wire? that should go on the G. A digital therm. is great for energy savings and will work on almost all systems. And before you install the therm. you should take the red and white wires and touch them together and make sure the unit kicks on if it does not it is not a broken therm. Good Luck
2007-02-27 10:00:44 · answer #1 · answered by brndnh721 3 · 0⤊ 0⤋
Spud55 is right, replacing thermostats can be a nightmare, if you wire it incorrectly you will blow your transformer, (the thermostat is a 12v item, so you have a transformer between it and your heat/air unit). I have replaced countless thermostats in my life time and very few have been the same. Not to berate you, but, get someone that deals with them often to do it for you.
2007-02-27 11:35:46 · answer #2 · answered by Brent C 1 · 0⤊ 0⤋
I generally advise against wiring your own thermostat because if you don't get it right the first time, you can cause damage to other circuitry that will cost you more to have repaired than hiring someone to come do your thermo for you in the first place.
2007-02-27 09:59:45 · answer #3 · answered by Spud55 5 · 0⤊ 0⤋