ecobee SmartThermostat with Voice Control Installation Manual

Download the ecobee app

The ecobee app has instructions, step-by-step videos, and diagrams customized to your wiring setup. Register your ecobee after installation to unlock smart features like Amazon Alexa.

Important Information

Look out for these icons at the bottom of each step.
They indicate useful tips and important reminders.

	TIPS
	WARNINGS

First things first. Here's what you'll find in the box:

You may also need these tools:

1. Power off your Heating, Ventilation, and Air Conditioning (HVAC) system by using the master switch or circuit breaker box. This is important for your safety.
   

TIP: Look for your master switch or circuit breaker box in the basement, attic, utility closet, or behind a wall panel near the thermostat.

2. Confirm your system is off by turning on your heat (during winter) or your AC (during summer). Wait a few minutes— you should not feel air coming from your vents.
   

TIP: If you have a boiler, check to see that the main flame is extinguished.

3. Remove your old thermostat cover from the wall.
   

CHECKPOINT: COMPATIBILITY
Does your old thermostat's backplate have any of these indicators?

YES
Sadly, you might not be compatible. you can double-check at ecobee.com/compatibility

NO
Great, please continue to the NEXT.

4. Take a picture of the wires connected to the terminals of your old thermostat. You may need to reference this photo later on.
   

ecobee is designed for 24VAC with a 2A maximum current. Do not connect it to line (high) voltage or millivolt systems.

5. Carefully disconnect and label the wires from your old thermostat one at a time, using the labels provided.
   

TIP: If you have a jumper between R C, R H, or R, leave it alone. Only label the wires that run from your wall into a terminal block.

6. Unscrew the mounting plate of your old thermostat to remove it from the wall.
   

7. Decide if you want to use the trim plate with your ecobee. The trim plate is useful if you want to hide marks or holes left on the wall by your old thermostat.
   If using the trim plate, align the mounting holes on the trim plate and backplate and press them into place together.
   
8. Pull the wires through the hole in the middle of the backplate and then attach the backplate to the wall using the drywall anchors and screws provided.
   

CHECKPOINT: INSERT YOUR R WIRE(S)
Do you have more than one R wire?
(That includes R, R C, and R H )
YES
Insert your wires:
R or RC ➔ RC
RH ➔ RH

NO
Insert your single wire:
R, RC, or RH ➔ RC

9. Insert your remaining wires into the side (not the front) of their corresponding terminal blocks.
   

10. Tug on the wires gently to ensure they are securely connected.
    

TIP: When a wire has been connected correctly, the lever on that block will lower.

11. Carefully push any excess wires back into the hole and ensure there are no drafts coming from the hole(s) in the wall.
    

TIP: Large holes behind your thermostat will affect temperature readings. Prevent drafts by covering the hole(s).

12. Gently press your ecobee into the backplate until it 'clicks' into place.
    

13. Turn the power to your HVAC system back on using the master switch or at the circuit breaker box.
    

Congratulations, you did it!
Say hi to your new ecobee! To complete your setup and registrations, follow the instructions on your ecobee screen.

TIP: If your thermostat does not power on, please see the troubleshooting section.

We can help you find a pro

Installation with the Power Extender Kit (PEK) will require you to handle electrical wiring. If you'd rather leave it up to a professional, we can help you find one quickly.
ecobee.com/proinstall

Install your ecobee without a C wire

If you don't have a C wire, you'll need to use the Power Extender Kit (PEK) included to reliably power your ecobee.

11. Tug on the wires gently to ensure they are securely connected.
    

TIP: When a wire has been connected correctly, the button on that block will lower.

12. Connect the five white wires coming out of your Power Extender Kit to their corresponding terminals on the control board.
    Find detailed step-by-step videos at ecobee.com/installation
    

TIP: Once again, tug on the wires gently to ensure they are securely connected.

CHECKPOINT: POWER EXTENDER KIT
Check that you have installed the Power Extender Kit correctly. It should be installed between your thermostat wiring and your control board.

13. Mount the Power Extender Kit inside your HVAC system, taking care not to strain the wires. Close the HVAC cover panel securely and return to your thermostat.
    Find detailed step-by-step videos at ecobee.com/installation
    

14. Back at your thermostat:
    Carefully disconnect and label the wires from your old thermostat one at a time, using the labels provided.
    

TIP: If you have a jumper between Rc, Rh, or R, leave it alone. Only label the wires that run from your wall into a terminal block.

15. Unscrew the mounting plate of your old thermostat to remove it from the wall.
    

Be careful, as some thermostats may contain mercury. Recycle your old thermostat safely with your local hazardous waste facility.

16. Decide if you want to use the trim plate with your ecobee. The trim plate is useful if you want to hide marks or holes left on the wall by your old thermostat.
    If using the trim plate, align the mounting holes on the trim plate and backplate and press them into place together.
    
17. Pull the wires through the hole in the middle of the backplate and then attach it to the wall using the drywall anchors and screws provided.
    

TIP: Use a 3/16" drill bit to drill a hole for the drywall anchors.

18. Remove the Rc, C, and PEK labels from the label sheet and attach them to the wires as shown below:
    
19. First, connect these 3 wires as shown: RC, C, PEK.
    Then, connect any remaining wires to their corresponding terminal.
    

CHECKPOINT: DON'T SKIP AHEAD
Did you connect the correct wires to the R C, C, and PEK terminals, as shown below?

YES
Continue to the NEXT.
NO
Please ensure that your wiring is as shown above.

20. Tug on the wires gently to ensure they are securely connected.
    

TIP: When a wire has been connected correctly, the lever on that block will lower.

21. Carefully push any excess wires back into the hole and ensure there are no drafts coming from the hole(s) in the wall.
    

22. Gently press your ecobee into the backplate until it 'clicks' into place.
    

TIP: If the thermostat 'rocks' or is not flush with the wall, be sure the excess wires are pushed all the way into the wall.

23. Turn the power to your HVAC system back on using the master switch or at the circuit breaker box.
    

Congratulations, you did it!
Say hi to your new ecobee! To complete your setup and registrations, follow the instructions on your ecobee screen.

TROUBLESHOOTING

If your ecobee doesn't turn on

please try these steps:

1. Check that all wires are properly inserted into the terminal blocks at the thermostat. Tug on the wires to ensure they are not loose.
   
   

2. Make sure your HVAC cover panel is closed. Some systems will not turn on if the cover panel has not been closed properly.
   

3. If you have only one R wire (either R, Rc, or Rh ), make sure it's inserted into the Rc terminal.
   
   

Still need help?
WE'RE HERE FOR YOU
Have questions or concerns? Get in touch.
1.877.932.6233
ecobee.com/support

WE CAN HELP YOU FIND A PRO
Installation requires you to uninstall your old device and handle electrical wiring. If you'd rather leave it up to a professional, we can help you find one quickly.
ecobee.com/proinstall

INSTALLING ACCESSORIES?
To install accessories (humidifier, dehumidifier or ventilator) please refer to the wiring diagrams at ecobee.com/wiring