Question about Honeywell Air Conditioners

1 Answer

I am changing an old circular Honeywell AC thermostat to a new Honeywell VisionPro TH8321U thermostat. There are two wires coming from the old thermostat and I want to know which terminals do I attach the wires to on the new thermostat?

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    Hot-Shot:

    An expert who has answered 20 questions.

    Corporal:

    An expert that hasĀ over 10 points.

    Mayor:

    An expert whose answer gotĀ voted for 2 times.

  • Expert
  • 182 Answers

Ac only?r and y

Posted on Aug 05, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Honeywell VisionPRO IAQ thermostat. No back light. Screen shows characters, but dim. When touched, back light fails to work. All other systems function okay.


this control has an option for back light display in the set up menu. if it has never worked this may be the problem. if it did work then quit you should replace the t-stat. there are many different models as they have advanced over the years. this is a great control. see if you can find the set up manual

Oct 12, 2013 | Honeywell YTH9421C1002 VisionPRO IAQ...

1 Answer

Our visionpro 8000 thermostat has adjusted its day. It is currently one day ahead. We have misplaced our manual and we cannot seem to get the day to change. Suggestions?


This site has owners manuals for different types of thermostats. http://yourhome.honeywell.com/home/Products/Thermostats/7-Day-Programmable/VisionPRO+8000.htm
This site is the manual for the "VisionPro 8000". You can look up what you need, copy or download. http://customer.honeywell.com/techlit/pdf/PackedLit/69-1894EFS.pdf Roger

Apr 07, 2011 | Honeywell Air Conditioners

1 Answer

My honeywell thermostat (TH8321U) touchscreen's icons only work on the left side which enables me to turn might heat on and off but will not allow me to change my settings?


Better replace the thermostat.

And for details, plz visit to:

Honeywell thermostat website: http://yourhome.honeywell.com/home/Applications/SmartSearchResults.aspx?searchkey=thermostatfor heating b>

Dec 07, 2010 | Air Conditioners

1 Answer

Wiring heat only thermostat to inter therm central electric furnace had to replace fuze block, limiter, and sequencer thermostat only has one red wire and one white wire


I am trying to install a Honeywell VisionPro 8000 thermostat for my Intertherm Central Electric Furnace but I am having trouble getting to work any suggestions?

Oct 06, 2010 | Air Conditioners

1 Answer

Want to replace a T874R1434 thermostat with aux heat with a visionpro th8000. Have a blue wire connected to the B terminal on old thermostat and what looks like a brown wire connected to the X terminal on...


Its kinda difficult to know exactly what the wires could go to considering its all in the way the technician decided to hook them up and everybody has different ideas. I can tell you the most common use of the colors and see if that helps. Depending on how many wires your system has,
Red=Power
White=Heat
Yellow=Cooling/AC
Green=Fan
Blue=Common/Ground
Brown=Heat

Black and Orange wires alternate a lot with different HVAC techs, but usually go to a heat pump system outside.

The best way to get a grip on what wires go where is to look inside the furnace and see where they go. If you have a electrical board, it gets a lot easier, and the back of the furnace door usually has wiring diagrams that are pretty up front about the wiring. Just keep in mind that the wires could have been changed from the thermostat to the furnace, but you can usually tell if the wires seem different. Hope this helps some and good luck!

Jun 13, 2010 | Ruud UBHC Air Conditioner

1 Answer

Honeywell VisionPro 8000 cycles between Hot and Cold all day.


yes it sound like either they wired it wrong or when theywent and configured the settings this obe did not take to the configuration correctly. Have the contractor come back and do the job correctly or replace the thermostat. Thinks for using Fixya

Dec 24, 2008 | Air Conditioners

1 Answer

Im changing an old honeywell thermostat with a new honeywell thermostat. the old on has wires 4 wires connected to 4 screws C,R,G,W but the new thermostat has a place where the wires go which are...


Yes, I believe that you will be fine. If the original wiring is correct then I have listed the basic wiring below. As always read the directions and make sure the wiring matches your system.

Red wire = Rh (24v power, should have an exsisting jumper to RC)
White wire = W (heat mode)
Yellow (or sometimes blue) wire = Y (A/C)
Green wire = G (Indoor Fan)

Jul 03, 2008 | Honeywell Air Conditioners

1 Answer

Need wiring help for replacing trane model baystat 239 with a honeywell th8321u thermostat


I am not sure of what help you need on it but here are the most common wiring on a stat
W= heat
C=Common (24V)
R=Hot (24V)
G= Fan
RC=Hot (24v for Cooling)
RH= Hot (24v for Heat)
O= Reversing Valve (Heat Pumps Only)
Hope this helps

May 11, 2008 | Air Conditioners

Not finding what you are looking for?
Air Conditioners Logo

Related Topics:

195 people viewed this question

Ask a Question

Usually answered in minutes!

Top Honeywell Air Conditioners Experts

MightyMikeJr

Level 3 Expert

347 Answers

cheapdiesel

Level 1 Expert

5 Answers

Steve Kjr

Level 1 Expert

41 Answers

Are you a Honeywell Air Conditioner Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...