Question about Heating & Cooling

1 Answer

Wiring Trane/Honeywell TH8320U

I currently have a Trane 3AAT80B1A1 thermostat that I'm replacing with a Trane/Honeywell TH8320U.

My current thermostat has R (red), T (tan), O (orange), G (green), Y (yellow), X2 (black), B (blue), W (white), and U (which looks like a metal wire coming out.

The NEW thermostat (Trane TH8320U) has SEVERAL different Inputs. On the left outside input it has Y2, F, X2, W1, S1, S2.

On the left inside input it has Y2, blank, blank, W2, S1, S2.

On the right inside input it has RC, R, W1, Y, G, B

On the right outside input it has RC, R, O, Y, G, B

Any experts out there have any ideas on how to wire my old thermostat to my new one? Thanks!!!!!

Posted by on

  • chaus21 Jul 27, 2009

    Ok, so just so I'm clear. I live in Florida and have an AC unit and a Heat Pump. For sake of easyness, let's call it 4 columns, starting from left to right.

    1st column (outside left)Y2, F, X2, W1, S1, S2
    2nd column (inside left) Y2, blank, blank, W2, S1, S2
    3rd column (inside right) RC w/jumper to R, R, W1, Y, G, B
    4th colun (outside right) RC, R, O, Y, G, B

    I understand connection the colored wires to the appropriate letter on the new thermostat. However, which column should they all go into, since I have several duplicates?

    In addition, coming out of the wall, I have a T (tan) wire that you said to put into Y2. Which Y2? Column 1 or 2? Also, I have a W coming out of the wall - Would that go into W1 or W2 and also, I have W1 in column 1 and W1 in column 3.

    Does this make sense or am I just making things more confusing?

    Regarding the U wire, it is a metal wire that is screwed down to the U label. Where will I put this one on my new thermostat?

    THANK YOU for your advice. GREATLY appreciated!

×

Ad

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that gotĀ 5 achievements.

    Champion:

    An expert who has answered 200 questions.

    Governor:

    An expert whose answer gotĀ voted for 20 times.

  • Expert
  • 233 Answers

Use the outside designations for heat pump, and inside for standard, I would assume a heat pump since you have more than five wires attached to it now. Use the colors of the wire to match to the designations, use tan for y2, black for w2 rc and rh should already have a factory jumper. I would have to trace out the "U" and see where it terminates, I have not seen a bare wire on a stat in 27 years of doing this. before powering, verify the tan and black at the indoor unit circuit board and see if they are landed on the terminals designated at the stat. hope this helps

Posted on Jul 27, 2009

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

I have a Trane 3AAT80B1A1 thermostat that I'm replacing with a Honeywell RTHL 3550D. Is it possible to do this myself or will I need to have an electrician come out?


The easiest way to be certain the wires get connected is to cut the wires close to the screw without loosening the screw. That way the color of the wire can be seen on the correct terminal without mixing them up.

Feb 24, 2013 | Heating & Cooling

1 Answer

Honeywell RTH6300B to replace Trane Baystat 239


Sad to say but you have bought an non compatible thermostat, what you need is a thermostat that has "Heat Pump" somewhere on the package, Honeywell makes those also in the same models, sometimes they can be tricky if your not looking. It should also say 2heat, 1cool too. Hope this helps and good luck!

May 23, 2010 | Honeywell Focus 6300B 5-2 Days...

1 Answer

Honeywell TH8320u Vision Pro 8000 Digital keeps calling for heat


Hi,
If the thermostat is not over shooting the temperature than don't worry about it.
These thermostats are very sensitive and will turn the heat back on even before the degrees drop on the display. Often they will shut down before the display changes also. You can change the sensitivity of the thermpstat if you read the directions and change the cycles per hour to a less number. There is an installers program in there that you need to push a combiunation of buttons to get too. The instructions tell you how to do that also.

Hopefully you did not throw away the instruction manual for your t-stat.. :-)

Heatman101

Dec 28, 2009 | Honeywell Programmable Thermostat Heater

1 Answer

Need wiring for honeywell pro 3000 in trane xe1200


the pro 300 is a single stage thermostat and can not be wired to control 2 heat stages seperately

May 16, 2009 | Heating & Cooling

1 Answer

Thermostat wiring


99.99% of the modern residential units use only one transformer to power the 24 volts for both the furnace and the a/c unit. It will be located in the furnace. The outdoor unit will not have its own transformer unless its reeallllly old. Place a small jumper wire between w1 & w2 terminals on the thermostat. (The lux brand is not the professionals choice) (if you have problems replace with a honeywell or white rodgers brand).
Good luck.....

Apr 21, 2009 | Heating & Cooling

1 Answer

I have a vison pro th8320u cant get aux heat to work


http://customer.honeywell.com/techlit/pdf/69-0000s/69-1871.pdf take and click on this link, then go to the installers menu and on option 0170 that is where you have to program the thermoistat to have aux heat. good luck

Jan 10, 2009 | Honeywell Electronic Programmable...

1 Answer

I'm trying to hook up a honeywell touchscreen thermostat and need to know what wires go where.


i have a vison pro th8320u and i cant get aux heat to operate also aux heat on will not come up on the touch screen.

Jan 04, 2009 | Honeywell Electronic Programmable...

Not finding what you are looking for?
Heating & Cooling Logo

Related Topics:

924 people viewed this question

Ask a Question

Usually answered in minutes!

Top Heating & Cooling Experts

Paul Carew

Level 3 Expert

2557 Answers

Dan Webster
Dan Webster

Level 3 Expert

8220 Answers

Donni Steen

Level 3 Expert

659 Answers

Are you a Heating and Cooling Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...