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I am replacingh my thermostat. it's a honeywell xt302c. im replacing it with a hunter 44660. the wires are different letters. here's what's hooked up on the honeywell and available on the hunter: Honeywell Hunter B W/B R RH W2 RC1 W1 RC Y1 Y1 G G Y/O I have a single stage hreating and cooling system (Trane XV80). Help!

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Thanks for your Question,
B- is your common leg,
RH- is your hot to heating
RC1- you will not need
RC- you can use if you remove the jumper for cooling
Y1- you will not need
G- is your fan
O is not needed, wires should be hooked in as follows,
RH- red wire, heating
RC- Yellow wire, Cooling
G- Green wire, Fan
B- Blue wire, for common leg, this one might be a different color so make sure at the furnace which T-Stat wire is connected to Common, you should check all the wiring at the furnace to make sure this pattern of wiring is followed, it should be standard practice to hook them up this way, but not all installers do it, thanks again, please rate this,
mr.grzz

Posted on Jan 25, 2009

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1 Answer

Changed honeywell T8400C 1024 to Hunter 44760, I have five wires white, red, yelliow, green, blue. Hunter Thermostat reads "NO A/C Power.


Hi,
On the t-stat and the furnace make sure the wires are hooked like this...

Red to R
White to W
Green to G
Yellow to Y
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then it should work..

Thermostat Wiring and Terminal Designations

heatman101

Jun 12, 2011 | Heating & Cooling

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I HAVE A HONEYWELL THERMOSTAT THAT HAS BROKEN. IT HAS 7 WIRES. G-GREEN C-BLUE R-RED Y-YELLOW L-BLACK W2/E-WHITE O-ORANGE ITS ELECTRIC WITH NO BATTERY. I BROUGHT A HUNTER THERMOSTAT WITH BATTERY. ALL IT HAS...


Shut power off to Air Handler first before hooking up the thermostat..... Looks like the Hunter Thermostat does not have a Common Terminal...... Is it a Heat Pump thermostat???? I am not a big Fan of Hunter Thermostats they do not have the features that Honeywell thermostats have.
Back to your Question:
G to G ; R to Rc&Rh : O to Y/O; White Wire to W/B; Y to Y1;
L-Black is not used it was for a service lite
C-Blue will not be used it was the common wire

With the Hunter Stat you will not have an emergercy heat option

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Im replacing my honeywell with a hunter 44110 the honeywell has 6 wires w1 to white, w2 to blk, G to green, RH to Red, Y2 to yellow and Y1 to orange, the hunter only has G RH RC Y W


Hi,
I hate to tell you this but that thermostat will not work with your system.
The system you have is a 2 stage system and the thermostat you got will only do one stage.
You will need to get a thermostat theat is compatible with stage heating and cooling.
The W1 is the first stage heating, the W2 is second heating. The same is true for Y1 and Y2 on cooling
You could double them up, but it would defeat the encomoy reasons for having a 2 stage unit.
Wish I could give you better news..

I hope that this will help you to solve your problem!

Thanks for using Fixya!!

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The hunter uses batteries and a ram chip to "remember" how you set it, the common is not needed with the Hunter. Some thermostats used the 24 volts of the thermostat circuit for powering up displays or for internal functions such as relays etc. Modern stats consume such a small amount of juice it is not typically required these days.

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1 Answer

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This is the corrcet wiring:
G - G fan relay
R - RC1, RC put a jumper RH ( to supply power to the cool and heat)
L - no wire connected (malfunction indicator) tape- off that wire
E - Emergency heat relay
B - W/B ( reversing valve in your heat pump energized during heat )
W2 - Auxilliary heat
Y - Y1 ( compressor contact)
O- Y/O ( reversing valve is energized during cool)
make sure that the system selector is on heat pump position.

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There is no real color code for wiring but the standard is red wire to r, yellow wire to y,white wire to w, green wire to g, blue wire to c. since there's no c on your t- stat its probably battery operated, but in your case im betting white wire to w, and blue wire to g.

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1 Answer

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Typically if you are replacing a heat only thermostat you will have two or three wires. On the old thermostat these wires will be attached to terminals marked "R", "W" and maybe "G". Document what color wires goes to which terminal and transpose these to the new thermostat. If you have a heat and cool thermostat, you will have two or three more wires and connected to terminals labeled "C", "B" and "Y". Again, transpose these wires to the new thermostat as best you can.

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Go to the hunter web site. They will have the proper wiring diagrams on the site. If you cannot do that pick up a basic wiring book at your local electric parts supplier. the place you got the thermostat would be a good start. I do know that menards has some books in the electric area that would be a great help to you. You also will need to be sure that the thermostat is able to handle both air and heat. many only do heat. If this does not help let me know and I will try and get more information to you

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