How to install your ecobee3 lite
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Table of contents What’s in the box 5 Guide 1 or Guide 2? 7 Guide 1: Install with a C-wire 14 Guide 2: Install without a C-wire 29 Extras 54
First things first. Here’s what you’ll find in the box.
You’ll also need these tools: Drill for mounting anchors (3/16” drill bit) Small flathead screwdriver Phillips screwdriver Pencil Wire stripper OPTIONAL Hammer
Guide 1 or Guide 2? Start here to find out. The steps in this section will help you decide which install guide you’ll use to complete the installation. These icons indicate useful tips and important reminders.
STEP 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. ON OFF OR ON OFF TIP: Look for your master switch or circuit breaker box in the basement, attic, utility closet, or behind a wall panel near the thermostat.
STEP 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.
STEP 3 Remove your old thermostat cover from the wall. OR TIP: Many thermostats simply pop off or unclip from the base, while others may have screws that you will need to remove.
CH E C KP O I N T: CO MPAT I B I L IT Y Does your old thermostat’s backplate have any of these indicators? WARNING HIGH VOLTAGE 110 VAC OR 120 VAC OR 240 VAC L1 L2 YES NO Sadly, you might not be compatible You can double check here: ecobee.
STEP 4 Take a picture of the wires connected to the terminals of your old thermostat. You may need to reference this photo later on. WARNING: ecobee3 lite is designed for 24VAC with a 2A maximum current. Do not connect it to line (high) voltage or millivolt systems.
C HE C KP O I N T: C WIR E Do you have a C wire connected to your old thermostat? NO YES OR RC RH YES Continue to Guide 1 RC RH NO Continue to Guide 2
G UID E 1 Install your ecobee with a C wire If you have a C wire, it will power your ecobee. You won’t need the Power Extender Kit included in the box.
C HE C KP OI N T: DO N ’ T S K I P AH E AD Have you completed steps 1 - 4 in the ‘Start Your Install’ section? YES Continue to the next page NO Return to step 1 in ‘Start Your Install’
STEP 5 Carefully disconnect and label the wires from your old thermostat one at a time, using the labels provided. Rc 1 W/W Y/Y1 RC RH 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.
STEP 6 Unscrew the mounting plate of your old thermostat to remove it from the wall. 1 W/W RC Y/Y1 RC RH WARNING: Be careful, as some thermostats may contain mercury. Recycle your old thermostat safely with your local hazardous waste facility.
STEP 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.
ST E P 8 : O PT I O N AL If using the trim plate, align the mounting holes on the trim plate and backplate and press them into place together.
STEP 9 Y Y/ 1 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. W/W1 G Rc C TIP: Use a 3/16” drill bit to drill a hole for the drywall plugs.
C HE C KP O I N T: I N S E RT YO U R R W IR E ( S ) Do you have more than one R wire? (That includes R, Rc, and Rh) YES NO R RH RH Y1 Y2 O/B W1 W /W 1 Y/Y 1 C OR C Y1 Y2 PEK Insert your wires: R or Rc Rc Rh Rh RH G W2 YES RH Rc C G G G Rc O/B W1 W /W 1 Y/Y 1 C W2 PEK NO Insert your single R, Rc or Rh wire into the Rc terminal.
STEP 1 0 Insert your remaining wires into the side (not the front) of their corresponding terminal blocks. Rc Y2 Rc G RH C C G Y1 Rc G Y1 Y2 O/B 1 Y/Y W1 W /W 1 W2 PEK Rc G Y1 TIP: Press the terminal block levers to insert the wires more easily.
STEP 1 1 Tug on the wires gently to ensure they are securely connected. RH C W 1 W 2 PE K TIP: When a wire has been connected correctly, the lever on that block will lower.
STEP 12 Carefully push any excess wire 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).
STEP 1 3 W/W1 Y1 G Rc Gently press your ecobee thermostat into the backplate until it ‘clicks’ into place. C 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.
STEP 14 Turn the power to your HVAC system back on using the master switch or at the circuit breaker box.
STEP 15 Say hi to your new ecobee! The screen will power on and guide you through the set-up and registration. hi TIP: If your thermostat does not power on, please see the troubleshooting tips in the ‘Extras’ section.
ALL D O N E! Congratulations, you did it! To complete your set-up, follow the instructions on your ecobee screen.
G UIDE 2 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.
C HE C KP O I N T: D O N ’ T S K I P AH E AD Have you completed steps 1 - 4 in the ‘Start Your Install’ section? YES Continue to the next page NO Return to step 1 in ‘Start Your Install’
CH E C KP O I N T: 3 O R 4 WIR E S The Power Extender Kit requires your system to have the following wires: 4 wires: W/W1, Y/Y1, G and R (or Rc or Rh) OR 3 wires: Y/Y1, G and R (or Rc or Rh) Do you have these wires? NO YES OR R C RH YES RC R H NO Continue to the next page The Power Extender kit will work with your system! Give us a call Looks like you have one or more wires missing. Please contact ecobee support for more information. 1.877.932.6233 or support@ecobee.
STEP 5 Take your Power Extender Kit, wire labels, tools, your smart phone, and go to your HVAC system. ecobee wire labels Power Extender Kit wire labels (not required for all installs) TIP: Your HVAC system can most often be found in your basement or your attic.
STEP 6 Open your HVAC system’s cover to reveal the control board. Y W G C R Control board WARNING: HVAC systems contain high voltage wires. Use caution when working with the control board.
STEP 7 Take a picture of the wires connected to your control board. You may need to reference this photo later on.
STEP 8 Label only the R, Y or Y1, G and W or W1 wires with the matching labels provided. If you have more than one wire going into these terminals, only label those coming from your thermostat. Wires going to your A/C (ignore these) Y Y W G C R R W G Wires going to your thermostat TIP: If you have wires connected to both Rc and R h terminals at the control board you may have a two transformer system. Please contact support to help you with installation: 1.877.932.6233 or support@ecobee.com.
STEP 9 Disconnect the labeled R, Y, G and W wires from the control board.
STEP 10 Connect the wires you disconnected from the control board into their matching gray terminal blocks on the Power Extender Kit. W Y G R TIP: Press the buttons to insert the wires more easily.
STEP 1 1 Tug on the wires gently to ensure they are securely connected. R Y G W W Y G R TIP: When a wire has been connected correctly, the button on that block will lower.
STEP 12 Connect the 5 white wires coming out of the Power Extender Kit to the corresponding terminals on your control board. R C G W Y Y W G C R W Y G R TIP: Once again, tug on the wires gently to ensure they are securely connected.
C HE C KP OI N T: P OWE R E X T E N DE R K I T Check that you have installed the Power Extender Kit correctly. It should be installed between your thermostat wiring and your control board.
STEP 1 3 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. TIP: Make sure your HVAC panel is fully closed. Some systems will not turn on if the cover panel has not been closed properly.
STEP 14 Back at your thermostat: Carefully disconnect and label the wires from your old thermostat one at a time, using the labels provided. 1 W/W Rc Y/Y1 RC R H 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.
STEP 15 Unscrew the mounting plate of your old thermostat to remove it from the wall. RC 1 W/W Y/Y1 RC RH WARNING: Be careful, as some thermostats may contain mercury. Recycle your old thermostat safely with your local hazardous waste facility.
STEP 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 on the wall left by your old thermostat.
ST E P 1 7: O PT I O N A L If using the trim plate, align the mounting holes on the trim plate and backplate and press them into place together.
STEP 18 Y Y/ 1 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. W/W1 G Rc TIP: Use a 3/16” drill bit to drill a hole for the drywall plugs.
STEP 1 9 First, connect these 3 wires as shown: R/Rc/Rh Rc G C Y PEK Then, connect any remaining wires to their corresponding terminal. Rc O/B W/W1 Y2 1 G Y1 RH G Y2 Rc Y/ Y Y1 Rc G C W1 W2 PEK Rc G Y1 TIP: Press the terminal block levers to insert the wires more easily.
STEP 2 0 Tug on the wires gently to ensure they are securely connected. RH C W 1 W 2 PE K TIP: When a wire has been connected correctly, the lever on that block will lower.
STEP 2 1 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).
STEP 22 W/W1 Y1 G Rc Gently press your ecobee thermostat into the backplate until it ‘clicks’ into place. C 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.
STEP 2 3 Turn the power to your HVAC system back on using the master switch or at the circuit breaker box.
STEP 24 Say hi to your new ecobee! The screen will power on and guide you through the set-up and registration. hi TIP: If your thermostat does not power on, please see the troubleshooting tips in the ‘Extras’ section.
ALL D O N E! Congratulations, you did it! To complete your set-up, follow the instructions on your ecobee screen.
EX T RAS In here you’ll find: Troubleshooting Meet your ecobee Wiring diagrams Warranty and Legal
TROUB L ESHO OT I N G If your ecobee doesn’t turn on, please try these steps: 1. Check that all wires are properly 2. Make sure your HVAC cover panel inserted into the terminal blocks at is closed. Some systems will not turn the thermostat. Tug on the wires to on if the cover panel has not been ensure they are not loose. closed properly.
TROUB L ESHO OT I N G 3. If you have only one R wire (either 4. If you installed the Power Extender R, RC , or RH ), make sure it’s inserted Kit, make sure you inserted the wires into the Rc terminal. into the correct terminals: R (or RC or RH ) RC R (or RC or RH ) G C Y PEK Rc Your R, RC , or RH wire Y1 Y2 O/B RH 1 G W/W1 Y2 Rc G Y1 Y/ Y G Rc Rc 0/B ecobee support is here to help: Call: 1 877 932 6233 (North America) 1 647 428 2220 (international) Email: support@ecobee.
MEET YOUR E COBE E Here’s what you’ll see on the home screen: Slider to adjust Temperature System Mode Humidity Indoor Temperature Menu Live Weather Quick Changes
MEET YOUR E COBE E And here’s what that means: System Mode Menu Shows your current ecobee Allows you to control your setting [heat/cool/auto/off] system, schedule a vacation, and more Humidity Weather Shows the indoor humidity Shows the local weather in your home and forecast for the week Temperature Quick Changes Shows the temperature in Touch this button to easily your home switch from Home and Away Slider to adjust Temperature Slide the bubble up or down to adjust your preferred temper
M EET YO UR ECOBE E These system mode icons are shown on the Home screen and in Quick Changes. Heat Cool Your system is in heat mode. A white icon means your system is off. An orange icon means your system is running. Your system is in cool mode. A white icon means your system is off. A blue icon means your system is running. Fan Auto Your fan is currently running. Your system is in Auto mode, meaning your system will heat or cool as required.
M EET YO UR ECOBE E More common icons you’ll find: Home Screen 2 Menu Menu (with notification) Weather Quick Changes Registration System Reminders and Alerts Schedule Vacation Settings Comfort Settings About Away Sleep Custom 1 (of 5) Menu Comfort Settings Home
WIRING D I AG RA M Conventional heating and cooling (up to 2 stages each) RH C Rc G W1 Y1 W2 Y2 PEK O/B Y1 Y2 C Y1 Y2 W1 W2 R C G Air Conditioner Furnace NOTE: Do not jumper Rc or Rh. ecobee does this automatically. The R wire needs to go into the Rc terminal on your ecobee.
WIR IN G D I AG RA M Heat pump (air or geothermal) with auxiliary heat RH Rc C G W1 Y1 W2 Y2 PEK O/B O/B W2 Y1 Y2 R C Heat Pump O/B W1 W2 Y1 Y2 G R C Air Handler NOTE: Do not jumper Rc or Rh. ecobee does this automatically. The R wire needs to go into the Rc terminal on your ecobee.
WIRIN G D I AG RA M Boiler or radiant system with air handler and conventional cooling or heating RH Rc C G W1 Y1 W2 Y2 PEK O/B Air Handler Y1 Y2 R C Air Conditioner or Heat Pump* G Boiler Y1 Y2 C O/B* NOTE: Do not jumper Rc or Rh. ecobee does this automatically. The R wire needs to go into the Rc terminal on your ecobee.
WIRIN G D I AG RA M Power Extender Kit thermostat wiring RH Rc C G Y1 W1 Y2 W2 O/B PEK W Y G R Power R GExtender Y WKit (at your HVAC system) NOTE: Do not jumper Rc or Rh. ecobee does this automatically. The R wire needs to go into the Rc terminal on your ecobee.
L EG AL Approvals This product was designed and built in accordance to RoHS directive 2002/95/EC and contains no hazardous substances as defined by this directive. FCC Compliance Statement Compliance Notice: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.
Compliance Notice: This device complies with Industry Canada license-exempt RSS standard(s). tout brouillage radioélectrique subi, même si le brouillage est susceptible d’en compromettre le fonctionnement. Operation is subject to the following two conditions: Cet appareil numérique de la classe B est conforme à la norme NMB-003 du Canada. 1. This device may not cause interference. Énoncé sur l’exposition aux fréquences radio : 2.
charge. Any replacement and/or repaired device are warranted for the remainder of the original warranty or ninety (90) days, whichever is longer. A proof-of-purchase will be required from the Customer in order for ecobee to provide a replacement and/or repaired device. This Warranty is valid only for Product installed in the country in which it is purchased. If the product is defective, call Customer Service at 1-877-932-6233.
– was subject to abuse, neglect, electrical fault, improper handling, accident or acts of nature; – was not installed by a licensed Heating Ventilating and Air Conditioning (HVAC) contractor; or – was installed improperly. ecobee’s sole responsibility shall be to repair or replace the Product within the terms stated above.
ecobee.com support@ecobee.com 1.877.932.6233 © 2016 ecobee, Inc. All rights reserved. ecobee and the ecobee logo are trademarks of ecobee Inc., registered in the U.S. and other countries. EB-STAT3LT01 770-00030 We’re here to help.
