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Old 10-01-2011, 04:29 PM   #1
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Replacing Carrier Thermostat with Honeywell


I am replacing a Carrier 960 thermostat with a Honeywell 8500. Should be an easy install, but the wires are not matching up. Does anyone have experience with this wiring? We have a Bryant 2 heat/1 cool heat pump.

Thank you!!
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Old 10-01-2011, 05:26 PM   #2
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Replacing Carrier Thermostat with Honeywell


Do you still have the old stat hooked up. If you do then post a picture of the wiring.
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Old 10-14-2011, 05:56 AM   #3
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Replacing Carrier Thermostat with Honeywell


Thank you for the reply - I am sorry it took me SO long to post these photos. Again, if there is ANYTHING you can do to help it would be greatly appreciated!!!

The current connections to the Carrier thermostat are on the left.
The new Honeywell 8500 thermostat is on the right.
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Replacing Carrier Thermostat with Honeywell-therm1-small.jpg   Replacing Carrier Thermostat with Honeywell-therm2-small.jpg  
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Old 10-14-2011, 07:57 AM   #4
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Replacing Carrier Thermostat with Honeywell


On the new t-stat you read the letters on the outside of the t-stat.
Yellow goes to y, orange goes to o/b, white goes to aux, green goes to g, red goes to R while keepin the jumper intalled between r and rc, and blue goes to C.
When programming make sure you pick the reversing valve energizes in cooling.
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Old 10-14-2011, 08:05 AM   #5
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Replacing Carrier Thermostat with Honeywell


I installed a new Honeywell last fall, and had similar issues (wiring/colors/etc..) not matching with install diagrams. I called Honeywell, and their tech person walked me through to a successful install.
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Old 10-14-2011, 02:02 PM   #6
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Replacing Carrier Thermostat with Honeywell


Quote:
Originally Posted by Patrick Eubanks View Post
On the new t-stat you read the letters on the outside of the t-stat.
Yellow goes to y, orange goes to o/b, white goes to aux, green goes to g, red goes to R while keepin the jumper intalled between r and rc, and blue goes to C.
When programming make sure you pick the reversing valve energizes in cooling.
Thank you!! The connections you suggested worked, and my system is working perfectly! Only question is, what do you mean by "reversing valve"??
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