help identifying wires to install Honeywell thermostat

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Old 11-18-13, 08:57 PM
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help identifying wires to install Honeywell thermostat

Hi. I tried to install a new thermostat in a house I just bought. But when I removed the old thermostat, the wires were not even connected. So I can't tell what the wires are for. There are 3 wires, red, yellow and black. Is there a way to identify what they are? Thanks
 
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Old 11-18-13, 09:10 PM
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Welcome to the forums.

The best thing to do is to go to the boiler ? end and see where they are connected.
If you can't tell where they are connected to or is just wires..... shoot us a pic or two and post it here.

http://www.doityourself.com/forum/el...-pictures.html
 
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