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Join Date: Apr 2015
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Smart thermostat
I have a new smart thermo that I want to replace my old one with. There are 4 wires. 2 are obvious where I connect to, the other two I’m not sure. Attached are the existing set up (with wires) and the second is the new panel. Any suggestions? Thanks.
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06-12-2022, 01:27 PM
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06-12-2022, 01:28 PM
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06-12-2022, 01:29 PM
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My other ride is a C-130J
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If my memory serves me there is at least a third wire referred to as the “C” wire.
If there are only two wires attached to the old thermostat you will need to connect at least one additional wire to the thermostat and furnace.
__________________
1975 911 Targa S 3.0 2000 911 Carrera Cab 2005 Cayenne Titanium Metallic 2022 Mercedes-Benz E450 Coupé 2020 Mercedes-Benz E350 2006 ACG Hummer Previously Owned Art from Stuttgart 2000 Boxster -1983 911 SC Cab -1984 944 N/A |
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06-12-2022, 01:32 PM
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My other ride is a C-130J
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The wiring to my thermostat looked something like this. . .
You may need to run an additional wire to the furnace from the thermostat. 
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1975 911 Targa S 3.0 2000 911 Carrera Cab 2005 Cayenne Titanium Metallic 2022 Mercedes-Benz E450 Coupé 2020 Mercedes-Benz E350 2006 ACG Hummer Previously Owned Art from Stuttgart 2000 Boxster -1983 911 SC Cab -1984 944 N/A |
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06-12-2022, 01:51 PM
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Sorry, 5 wires. White, green, red, yellow and Orange. I’m assuming the yellow and green go into Y and G. Red likely RC since originally is in R that has a bridge to RC. Orange to O/B. White I’m not sure.
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06-12-2022, 02:17 PM
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Band.
Join Date: Dec 2003
Location: Denver, CO
Posts: 13,347
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Go to the furnace end and check the labeling on the furnace end and see if you can make sense of it with your new thermostat
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1983 SC Coupe 1963 BMW R60/2 1972 Triumph Tiger 1995 Triumph Daytona SuperIII |
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06-12-2022, 02:19 PM
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Without knowing more about your new panel (brand/model), I would think:
Black to C Yellow to Y1 Red to RH with a jumper to RC Orange to O/B Green to G White to W/E
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74 Targa 3.0, 89 Carrera, 04 Cayenne Turbo http://www.pelicanparts.com/gallery/fintstone/ "The problem with socialism is that you eventually run out of other people's money" Some are born free. Some have freedom thrust upon them. Others simply surrender |
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06-12-2022, 03:12 PM
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Wife figured out going on App. Thanks for the help.
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06-12-2022, 04:55 PM
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Dee
1974 Porsche 911 3.0
Yellow 911
