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Thread: Wiring Ecobee SI with Heatpump Emergency Heat?

  1. #1
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    Wiring Ecobee SI with Heatpump Emergency Heat?

    I recently purchased my home and do not fully know what equipment I have. I also just bought an Ecobee Smart SI thermostat for my upstairs unit. My upstairs unit is an air conditioner/heat pump with emergency heat.

    Update amazon now offers a free smart home consultation

    It is currently wired to a Simple Comfort 2201 thermostat. The handler in the attic is a Goodman ARUF032-00A-1C. The picture below shows how my current thermostat is wired. I believe that my current configuration corresponds to page 23 of the Simple Comfort 2201 manual.

    I think that the correct configuration for my Ecobee unit should be per page 15 of Ecobee Smart SI manual. Please confirm if able.

    The biggest question I have is what to do with my Emergency Heat wire. W2 (Aux) seems to be the most appropriate, but I would I am not confident.

    Any help would be appreciated.

    Click image for larger version. 

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    Last edited by jeepguy_1980; 05-09-2014 at 07:08 PM.

  2. #2
    HVAC Thermostat Specialist

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    I think the correct configuration for your Ecobee should be per page 14.



    R to RC and leave jumper between RC and RH
    C = Ecobee SI C terminal
    G = Ecobee SI G terminal
    Y1 = Ecobee SI Y terminal
    O = Ecobee SI W-O/B terminal
    W2 = Ecobee SI W2/Aux terminal
    E = Cap off with wire nut.

  3. #3
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    Quote Originally Posted by HVAC View Post
    I think the correct configuration for your Ecobee should be per page 14.

    R to RC and leave jumper between RC and RH
    C = Ecobee SI C terminal
    G = Ecobee SI G terminal
    Y1 = Ecobee SI Y terminal
    O = Ecobee SI W-O/B terminal
    W2 = Ecobee SI W2/Aux terminal
    E = Cap off with wire nut.
    I think you may be right. I wound up just referencing the chart on page 6 and came to the conclusion that there was no where to use connect the Emergency Heat. I am not happy about that. I wound up just connecting the Ecobee to my downstairs unit, which is just an one-stage AC and one-stage gas furnace.

    That was simple, it took about 20 minutes. I just had to connect one of the extra wires to the C on my air handler board. I think the regular Ecobee Smart Thermostat can handle my upstairs unit. I just wanted to avoid that unit, since I heard the touchscreen wasn't very good. If I wind up liking the SI, I might go for the regular Ecobee.

    Click image for larger version. 

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    Last edited by jeepguy_1980; 05-09-2014 at 09:00 PM.

  4. #4
    HVAC Thermostat Specialist

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    Depending on how your heat is wired in your air handing unit your W2 wire and your E wire may do the same thing.

  5. #5
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    Quote Originally Posted by HVAC View Post
    Depending on how your heat is wired in your air handing unit your W2 wire and your E wire may do the same thing.
    My existing thermostat has a hard switch to activate the emergency heat. It doesn't not do it automatically. I don't believe that the W2 and E are wired together.

  6. #6
    HVAC Thermostat Specialist

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    Quote Originally Posted by jeepguy_1980 View Post
    I think the regular Ecobee Smart Thermostat can handle my upstairs unit. I just wanted to avoid that unit, since I heard the touchscreen wasn't very good. If I wind up liking the SI, I might go for the regular Ecobee.
    The screen on the regular Ecobee EB-STAT-02 looks sharp but could have better sensitivity. I do not think that the sensitivity is a issue because after setup for installation you will most likely just use the web portal or phone app to view and make changes.





    Quote Originally Posted by jeepguy_1980 View Post
    My existing thermostat has a hard switch to activate the emergency heat. It doesn't not do it automatically.
    No sure on the Ecobee SI but on the Ecobee EB-STAT-02 under the system mode you can set the system to just use Aux heat.






    Quote Originally Posted by jeepguy_1980 View Post
    I don't believe that the W2 and E are wired together
    It all depends on how the electrical wiring is for the heat inside the air handling unit.

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