Installing new Thermostat - http://www.hvacmechanic.com/ Forums
Original message
| dietdewman
 |  "Installing new Thermostat"
, posted Wed 12 Nov 00:48  
I Bought a new thermostat to replace the one that came with the house, The home is only 2.5 years old. I thought I could exchange wire color for wire color, but new thermostat has a different wire diagram. Ive taken pics of the old thermostat wiring and diagram from the instructions that came with the old thermostat , along with the label on the side of heating/AC unit. The New Thermostat is a Hunter Model 44665 but instruction that came with it says Model 44668 & 44660, I'm assuming they are the same, hunters website didn't help much. I have posted the pictures on http://photobucket.com/dietdewman1 . Please Help. I just need to know what color wire goes where, the colors are Green Yellow White Red and Blue, The brown wire isn't attached to anything.
Brian (dietdewman@gmail.com)
Thank you
DietDewMan :)
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Replies:
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| wingnut_2u
| "Re(1):Installing new Thermostat" , posted Wed 12 Nov 02:36
TURN POWER OFF TO FURNACE AT BRAKER FIRST!
hook the wires as follows.
REMOVE BLUE WIRE AT FURNACE
wire--------thermostat
red -------- RC1
white ------ W/B
yellow ----- Y/O
green-- G
Jumper RC and RH
System Selector switch to HG/HE
DON'T FORGET TO REMOVE BLUE WIRE AT FURNACE
Turn power back on...go to go
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Masters Heating & Cooling
Caldwell/Boise Idaho
Always call a certified HVAC Professional when you are unsure on how to do it yourself.
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| | Houston204
| "Re(2):Installing new Thermostat" , posted Wed 12 Nov 08:07
You will also need to jumper Rc to R1 (red connects to 3 terminals).
"Tip of the Day" Remember to remove power first.
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| | wingnut_2u
| "Re(3):Installing new Thermostat" , posted Wed 12 Nov 10:40
Rc and Rc1 are already connected internally
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Masters Heating & Cooling
Caldwell/Boise Idaho
Always call a certified HVAC Professional when you are unsure on how to do it yourself.
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