Ecobee ecobee4 Install Manual

How to install
your ecobee4

Be happy

You have joined a growing community
of people who want to conserve energy,
save money, and do something good
for our planet.

Let’s get started!

Download the ecobee app
for customized installation
instructions.

Or continue reading!

Thermostat

Control Board

Rc

G

Y1

Y2

O/B

PEK

ACC-

ACC+

W2

W1

R

H

C

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

ecobee smart

thermostat

BackplateRoom sensor

and stand

Power Extender

Kit (PEK)

Drywall plugs

Screws

Install guide (this booklet),

room sensor manual, wire labels,

and voice card.

Trim plate

You’ll also need these tools:

Drill for mounting

anchors (3/16” drill bit)

Small

flathead screwdriver

Phillips

screwdriver

Hammer Pencil Wire stripper

OPTIONAL

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.

Start Your Install

ON

OFF

ON

OFF

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.

TIP Look for your master switch or circuit breaker box in the basement,

attic, utility closet, or behind a wall panel near the thermostat.

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

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.

STEP 2

STEP 3

Remove your old thermostat cover from
the wall.

TIP Many thermostats simply pop off or unclip from the base, while others

may have screws that you will need to remove.

L1 L2

WARNING

HIGH VOLTAGE

110 VAC

OR

120 VAC

OR

240 VAC

YES

NO

Does your old thermostat’s backplate
have any of these indicators?

CHECKPOINT: COMPATIBILITY

Sadly, you might

not be compatible.

Great, please

continue to

the next page.

You can double-check here:

ecobee.com/compatibility

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 ecobee4 is designed for 24VAC with a 2A maximum
current. Do not connect it to line (high) voltage or millivolt systems.

YES

NO

RC RH RC RH

YES

NO

CHECKPOINT: C WIRE

Do you have a C wire connected to your
old thermostat?

Continue to

Guide 1

Continue to

Guide 2

GUIDE 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.

Guide 1

YES

NO

CHECKPOINT: DON’T SKIP AHEAD

Have you completed steps 1–4 in the
‘Start Your Install’ section?

Continue to

the next page

Return to step 1

in ‘Start Your Install’

W/W1

Y/Y1

Rc

RC RH

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

STEP 5

TIP 1 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.

TIP 2 To install accessories (humidifier, dehumidifier or ventilator)

please refer to the wiring diagrams in the ‘Extras’ section.

R

C

RC RH

W/W1

Y/Y1

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

STEP 6

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

or

Rc

G

Y1

Y2

O/B

PEK

ACC-

ACC+

W2

W1

R

H

C

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.

STEP 8: OPTIONAL

If using the trim plate, align the mounting
holes on the trim plate and backplate and
press them into place together.

Rc

G

Y/Y1

W/W1

C

STEP 9

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.

TIP Use a 3/16” drill bit to drill a hole for the drywall plugs.

YES

NO

ACC-

ACC+

W2

W1

R

H

C

Rc

G

Y1

Y2

O/B

PEK

ACC-

ACC+

W2

W1

R

H

C

Rc

G

Y1

Y2

O/B

PEK

R

G

C

W/W1

Y/Y1

R

H

R

G

C

W/W1

Y/Y1

NO

YES

or

Do you have more than one R wire?
(That includes R, R

c, and Rh)

Insert your wires: Insert your single

R, Rc, or Rh wire into

the Rc terminal.

R or Rc Rc

Rh Rh

CHECKPOINT: INSERT YOUR R WIRE(S)

Rc

G

Y1

Y2

O/B

PEK

ACC-

ACC+

W2

W1

R

H

C

Rc

G

C

W/W1

Y/Y1

STEP 10

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

TIP Press the terminal block levers to insert the wires more easily.

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.

STEP 11