enter image description hereenter image description here[![enter image description here][2]][2]enter image description hereThe thermostat was damaged and I need to buy a new one for our American Standard heat pump. We've been told only a Honeywell will work for our system but I don't know what is compatible. The model # of the Air Handler in the house is TWEO42C14FCO, the heat pump # of the one outside is 6H0042A100A3 & Serial # P473EX5CF. I do know that the air handler has a variable speed. The whole unit was installed about 20 years ago. Can you help to know what thermostat would go with this unite? Would one of these 3 work with our system? 1. Honeywell RTH7600D Touchscreen 7-Day Programmable Thermostat 2. Honeywell RTH6580WF Wi-Fi 7-Day Programmable Thermostat 3. Honeywell RTH8500D 7-Day Touchscreen Programmable Thermostat

  • Can you post a photo of each end of the existing thermostat wiring? – ThreePhaseEel Nov 25 '16 at 13:26
  • I had a problem getting pictures to upload. I only did one picture & 2 of the same uploaded. I hope this picture works. – Bacuna Nov 25 '16 at 20:14
  • Since you are new and have low rep, pictures are limited. If you have more upload to imgur.com (you can do that without creating an imgur account). Once uploaded, paste the links in a comment here, someone with more rep will kindly edit them into the question for you. – Tyson Nov 26 '16 at 15:50
  • I have a link to the exact thermostat that we have: – Bacuna Nov 28 '16 at 4:03

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