Honeywell 8000 to Replace Water Furnace TA23E12


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Old 10-23-14, 10:39 AM
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Honeywell 8000 to Replace Water Furnace TA23E12

Help!
I am trying to replace my water Furnace(Geothermal) thermostat with a Honeywell 8000.
I cant figuer out how to wire the new one.
Mine has one wire on the left, wired to terminal "L1". On the right, the wires go to: R, Y, Y1, W,G,R,C and O.
The Honeweyll terminals are a bit different.
Will I need to specifically program the 8000 for geo thermal?
Mine is a 3 stage heat, and 2 stage A/C unit.
Thanks!
 
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Old 10-23-14, 11:20 AM
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For a geothermal heat pump you will need to go into the installer's setup menu and set function 173 to 1.

Here is a link to the installation guide:

https://customer.honeywell.com/resou...0s/69-2389.pdf

Page 5 shows the wiring for a 3H/2C system and pages 6 and 7 shows how to enter the setup and configure guide.
 
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