Ecobee EB-STATe3-02 Instruction Manual Page 1

Installation guide

101. Look at the wires coming out of the wall. Take a picture for reference.2. Using the old thermostat base as a guide, label each wire going into

11Step 3. Install Power Extender Kit (PEK)Some thermostats do not have a C-wire. The C-wire is used to reliably provide power to the thermostat. In th

12The PEK requires your system to have the following wires:• 4 wires: W, Y, G, and R (or Rc or Rh), or• 3 wires: Y, G, and R (or Rc or Rh)1. Remove

134. Open up the PEK. It has two rows of terminals (one side is for thermostat connections, the other side, pre-wired, is for the control board conne

14Step 4. Attach back plate to wall1. Gently remove the old thermostat base by unscrewing it from the wall. Make sure the wires do not fall back into

15Tip: ensure the back plate is straight by centering the bubble on the built-in level.Secure the back plateUse the drywall anchors and screws provide

16Warning! If you installed the PEK in step 3, the R (or Rc or Rh) wire must connect to the Rc terminal on the ecobee3, or the thermostat will not pow

17If you need help with the wiring, refer to the reference diagrams at the back of this guide:• For conventional heating and cooling systems, see pag

18Step 6. Power on ecobee3Power your HVAC equipment back on. Your ecobee3 will automatically power on. If your ecobee3 does not power on, see page 24

19Step 7. Install remote sensorOrdinary thermostats only read the temperature in one location. ecobee3 uses multiple temperature readings from remote

203. Your ecobee3 will detect your remote sensor and ask you to name it. You can verify a successful connection on your thermostat. If your sensor do

21Rotate sensor so bee points up to the right.5ft(1.5m)Warning! Do not place the remote sensor in direct sunlight, near vents or window openings as th

22Congratulations, you’re done!Register your ecobee3 at ecobee.com to control it from your smartphone, tablet or desktop, and to access free online en

23Menu optionsTo access the thermostat menu, touch the screen and pressSystem Selects mode of operation: heat/cool/auto/o, fan on/autoSchedule Confi

24TroubleshootingIf your ecobee3 does not power on, please check the following:1. Check that all wires are properly inserted into the terminal blocks

25Wiring diagramsThe following pages provide wiring diagrams for common HVAC equipment configurations.Need help with your ecobee3 wiring? Find how-to v

26Conventional heating and cooling (up to 2 stages each)Y1 Y2 C Y1 Y2 W1 W2 R C GRcGY1W1(AUX1)O/BACC–ACC+W2(AUX2)Y2CRHStage 2 heat and cool if appli

27Heat pump (air or geothermal) with auxiliary heatW2W1O/B Y1 Y2 R C W1O/B W2 Y1 GY2 R CRcGY1W1(AUX1)O/BACC–ACC+W2(AUX2)Y2CRHHeat pump Air handlerNot

28Boiler or radiant system with air handler and conventional cooling or heat pumpRcGY1W1(AUX1)O/BACC–ACC+W2(AUX2)Y2CRHY1 Y2 R C GY2Y1 C O/B*W1 W2RSta

29Accessory devices The ecobee3 can control an accessory HVAC device like a humidifier, dehumidifier, or ventilation device from its ACC terminals.If yo

3Welcome!If you have questions, we have answers. Visit ecobee.com/Support/ecobee3 for tutorials, how-to videos and FAQs.Technical support is also avai

30PEK thermostat wiring The R wire needs to go into the Rc terminal on your ecobee3Wires coming out the wall and connecting to HVAC equipmentRcGY1W1(A

31Approvals This product was designed and built in accordance to RoHS directive 2002/95/EC and contains no hazardous substances as defined by this dire

32FCC ID: WR9EBSTATZBE3 IC: 7981A-EBSTATZBE3Warning: Changes or modifications not expressly approved by ecobee Inc. could void the user’s authority to

33Service, 477 Richmond St West, Suite 210, Toronto, Ontario, M5V 3E7, Canada. If the returned Product is found by ecobee to be defective and Customer

34allow the exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to you.ecobee’s respons

© 2014 ecobee Inc. All rights reserved. ecobee and the ecobee logo are trademarks of ecobee Inc., registered in the U.S. and other countries. Printed

4Items included in box ABCDEFGADBECGFecobee3 thermostat with back plate and trim plate Remote Sensor and stand Power Extender Kit (optional)Large tri

5ABA BPhillips screwdriver Drill for mounting anchors with ⁄ inch drill bitItems you’ll needTip: Review all the instructions before you start to en

6Overview of stepsInstalling your ecobee3 home climate system is easy. Just follow these steps and you’ll be done before you know it.Power o your HVA

7Terminal descriptionsG FanRc Cool transformerRh Heat transformerO/B Heat pump reversing valveY Y1, Y2: Used for 1 - 2 stages of conventional A/C or 1

8Step 1. Power o your HVAC systemBefore doing anything else, power o your system. If your HVAC equipment doesn’t have a master switch, go to your ci

9Step 2. Label the wiresRemove the cover from your old thermostat. Most snap o easily but some may be attached by screws.110/120VWarning! If your old