How JustAnswer Works:

  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.

Ask Mark Henley Your Own Question

Mark Henley
Mark Henley, Journeyman Technician
Category: HVAC
Satisfied Customers: 3217
Experience:  UA Journeyman Pipefitter , HVAC, Refrigeration, DDC controls. 26 years.Commercial & residential
Type Your HVAC Question Here...
Mark Henley is online now
A new question is answered every 9 seconds

I have a very old thermostat (GE Weathertron 3aat80b1a1 - yes,

Customer Question

I have a very old thermostat (GE Weathertron 3aat80b1a1 - yes, it's GE, not Trane- i guess Trane bought Weathertron at some point?) that does not have wires labeled. They're soldered on, and not even all distinct colors (2 red, 2 black, 3 tan).<br /><br /> i bought a Honeywell TH6220D which i believe should handle my heatpump (it has AUX heat and EMG heat, along with AC). I have pictures of the existing wiring i can upload (not sure how to do it on this post) or email. I just need to ID the old wires. <br /><br />Without a pic, the best i can think to describe the layout is this: 2 tan and 1 black going into the lower mercury cylinder 1 red 1 black and 1 tan going into upper mercury cylinder 1 red going into some kind of capacitor(?) right by the upper cylinder. <br /><br />The new T-stat's terminals per the manual are: <br />R and Rc jumpered together - power <br />Y - compressor C - 24VAC common <br />O/B - changeover valve <br />G - Fan relay <br />AUX - aux heat relay<br /> E - Emg heat relay<br /> L - sends output when set to EMG heat<br /><br /> any help please?
Submitted: 4 years ago.
Category: HVAC
Expert:  Mark Henley replied 4 years ago.
Chat Conversation Started
Mark Henley :

Hi, are you sure you are getting to the back of the thermostat, they won't be soldered in there, you are looking at the factory solders of the internal thermostat, you need to get right where the wires come through the wall, let me know.

Customer:

ah, apparently there are 2 parts to this thing. I unscrewed the second face and got to the labeled wires. This is what i got:

Customer:

R-Red ; T-Brown ; O-Orange ; G-Green; Y-Yellow; X2-Black; B-Blue ; W-White. Based on other research i've found most of how these would translate but not 100% sure.

Customer:

oh yea, and W is i would guess jumpered to U.. they seem to be connected anyway.

Expert:  Mark Henley replied 4 years ago.
Chat Conversation Ended

Your expert is gathering additional information and will be back with you shortly.
Expert:  Mark Henley replied 4 years ago.

Hi , sorry for the delay, U doesn't need to be connected nor does the T. , W would be AUX and X2 is emergency or E, let me know.

 

Thanks

JustAnswer in the News:

 
 
 
Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.
 
 
 

What Customers are Saying:

 
 
 
  • You did one super job of explaining to me everything there is to know about this fridge. I'm looking forward to asking you questions in the future. Jimmy Bagley, IA
< Last | Next >
  • You did one super job of explaining to me everything there is to know about this fridge. I'm looking forward to asking you questions in the future. Jimmy Bagley, IA
  • Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help. Mary C. Freshfield, Liverpool, UK
  • This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!! Alex Los Angeles, CA
  • Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult. GP Hesperia, CA
  • I couldn't be more satisfied! This is the site I will always come to when I need a second opinion. Justin Kernersville, NC
  • Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around. Esther Woodstock, NY
  • Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know. Robin Elkton, Maryland
 
 
 

Meet The Experts:

 
 
 
  • gotoman for ac

    HVAC Technician

    Satisfied Customers:

    4657
    51 years of experience install design and repair of all makes and models of AC
< Last | Next >
  • http://ww2.justanswer.com/uploads/SE/ServiceTechRus/2012-6-7_2119_056.64x64.JPG gotoman for ac's Avatar

    gotoman for ac

    HVAC Technician

    Satisfied Customers:

    4657
    51 years of experience install design and repair of all makes and models of AC
  • http://ww2.justanswer.com/uploads/AL/alumalite/2012-5-10_234018_shutterstock506249951forJA500.64x64.jpg Phil's Avatar

    Phil

    Mechanical Engineer

    Satisfied Customers:

    3888
    Retired HVAC/ Electrical & Boiler contractor. Industrial
  • http://ww2.justanswer.com/uploads/skibum0101/2008-12-16_015819_just_answer.jpg Rick Mather's Avatar

    Rick Mather

    HVAC Technician

    Satisfied Customers:

    3132
    35 years experience, HVAC
  • http://ww2.justanswer.com/uploads/RY/Rygis20/2011-5-7_3143_DSC5324.64x64.JPG Matthew's Avatar

    Matthew

    HVAC Technician

    Satisfied Customers:

    1994
    14 years experience in the HVAC field of service, installation, Manual J & D calculations
  • http://ww2.justanswer.com/uploads/KE/kentguidry/2011-9-26_214316_0059.64x64.jpg Kenton Guidry's Avatar

    Kenton Guidry

    HVAC Technician

    Satisfied Customers:

    962
    12 years install/service experience.
  • http://ww2.justanswer.com/uploads/solarman1947/2009-12-13_223915_phpkKBcXq_c2PM.jpg Rick Ridley's Avatar

    Rick Ridley

    UK Heating Engineer

    Satisfied Customers:

    871
    Retired But have had 30 years on the tools, Ex CORGI
  • http://ww2.justanswer.com/uploads/Ironheadfan/2009-12-18_222416_pump_005.jpg Tom's Avatar

    Tom

    HVAC Technician

    Satisfied Customers:

    770
    16+yrs HVAC/R service. Residential Commerical Industrial