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Central Air Wiring Question

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I need to re-wire the control wire from my thermostat to my central AC unit. Taking a look in the

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  #1 (permalink)  
Old 07-27-2012, 05:29 PM
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Default Central Air Wiring Question
Model Number: 1f80-51   Brand: -other-   Age: 5 - 10 years   

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I need to re-wire the control wire from my thermostat to my central AC unit. Taking a look in the manual, it shows the diagram which wire goes where, but on each of the three main wires it has a box. The boxes are labelled "Cooling system," "Fan relay" and "Heating system." Does that mean the wire should go through those systems before going to the transformer? I attached the wiring diagram for reference. Thermo is a White-Rodgers 1f80-51.


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  #2 (permalink)  
Old 07-27-2012, 09:01 PM
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does your thermostat have a (c) terminal? If so hook one wire going out to your condensing unit to (c) terminal and the other to the (y) terminal. You should only have 2 wires going outside. Your t stat contacts close r to y in cooling
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Old 07-29-2012, 03:53 PM
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Quote:
Originally Posted by kurt h View Post
does your thermostat have a (c) terminal? If so hook one wire going out to your condensing unit to (c) terminal and the other to the (y) terminal. You should only have 2 wires going outside. Your t stat contacts close r to y in cooling
The terminals you see in the diagram are the only ones it has. Are you saying a two-lead wire should go from the C & Y terminals on the thermo to the outside unit? (Don't have a C terminal, but whatever)
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Old 08-04-2012, 07:04 AM
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Default THERMOSTAT wiring (typically)

Yellow wire should go to - Y
Green wire should go to - G
Red wire should go to - R
White wire should go to - W

Then there should be a jumper wire between RC (cool) & RH (heat)
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Old 08-04-2012, 07:06 AM
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the 2 wire from the Ac to the Furnace should be wired on the Y & C terminals - and PLEASE DISCONNECT THE POWER B4 WORKING!
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