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 Tim H. Your Own Question
Tim H.
Tim H., HVAC Professional
Category: HVAC
Satisfied Customers: 3971
Experience:  Experienced in all aspects of HVAC, both residential and commercial.
Type Your HVAC Question Here...
Tim H. is online now
A new question is answered every 9 seconds

I am working on a customer that has a Lennox LGA240 RTU, with

Customer Question

I am working on a customer that has a Lennox LGA240 RTU, with the Johnson Controls Metasys controller installed. I want to remove that controller and revert back to standard thermostat control. Possible?
Submitted: 1 year ago.
Category: HVAC
Expert:  Tim H. replied 1 year ago.
Hi, I'm Tim and I'm an HVAC expert here to help answer your question(s). Please provide all the information I ask for since I'm not onsite. At the end of our dialog you will be asked to rate my service, but please wait until then and all your question(s) have been answered satisfactorily. If you are not satisfied, I'd appreciate it if you'd tell me why before leaving a negative rating and allow me to continue to work with you until we are able to both agree on an outcome to follow. Thanks for your business!I show this unit can be hooked up several ways including a standard thermostat. do you have the standard terminals on the board? R,W,Y,G.
Customer: replied 1 year ago.
Expert:  Tim H. replied 1 year ago.
OK, so just remove the wiring from the Johnson control unit and hook up your standard thermostat wires to the board.
Expert:  Tim H. replied 1 year ago.
That should be all there is to it.
Expert:  Tim H. replied 1 year ago.
Make sure it's a 2 HEAT, 2 COOL thermostat
Expert:  Tim H. replied 1 year ago.
Let me know if you have additional questions. Otherwise, good luck! Thanks for using Just Answer and please don't forget to rate my service as that's how experts get paid (thanks in advance for any bonus left). Otherwise experts work at their own time and expense. Feel free to post back with any more questions. Remember, you can rate question at any point and still ask more questions (related to the same thing) later on. Experts prefer if you rate question at the end of our first chat.