Ecobee B2320552 User Manual
How to install
your ecobee
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.
1
Important Information
Look out for these icons at the bottom of each step.
They indicate useful tips and important reminders.
TIPS
WARNINGS
2
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:
Rc
G
Y1
Y2
O/B
PEK
H
R
C
W1
W2
ACC-
ACC+
SmartThermostat BackplateSmartSensor, stand,
Tri m p la te
and wall-mount
quick s tart g uide & wire labels
Power Extender
Kit (PEK)
Install guide (this booklet)
Screws
(x2)
Drywall plugs
(x2)
3
You may also need these tools:
Drill fo r mounting
ancho rs (3/ 16” drill bit)
Hammer Pencil Wire stripper
Small fl athea d
screwdriver
Phillips
screwdriver
4
STEP 1
Power o 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
OFF
ON
5
utility closet, or behind a wall pa nel near the thermostat.
TIP: Look for your master switch or circuit breaker box in the basement, attic,
STEP 2
Confirm your system is o 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.
6
STEP 3
Remove your old thermostat cover from the wall.
TIP: Many thermostats simply pop o or unclip f rom the base, while others
7
may have screws that you will need to remove.
L1 L2
CHECKPOINT: COMPATIBILITY
Does your old thermostat’s backplate have any
of these indicators?
110 VAC
OR
WARNING
HIGH VOLTAGE
YES NO
120 VAC
OR
240 VAC
Sadly, you might
not be compatible.
you can double-check at
ecobee.com/compatibility
Great, please continue
to the NEXT PAGE.
8
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.
9
WARNING: ecobee is designed for 24VAC with a 2A maximum current.
Do not connect it to line (high) voltage or millivolt systems.
RC RH
CHECKPOINT: C WIRE
Do you have a C wire connected to your old thermostat?
YES NO
Great! Continue
to the NEXT PAGE.
Go to PAGE 24 to
install with a PEK.
RC RHRC RH
TIP: The wiring on your old the rmostat may look dierent—
just check to see if there’s a C wire.
10
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 (PEK) included in the box.
11
TIP: To install accessories (humidifier, dehu midifi er or ventilator) please
refer to the wiring diagrams at ecobee.com/wiring
STEP 5
Carefully disconnect and label the wires from your old
thermostat one at a time, using the labels provided.
Rc
Y/Y1
W/W1
RC RH
TIP: If you have a jumper between RC , RH, or R, leave it alone.
Only label the wires that r un from your wall into a terminal block.
12
ST E P 6
Unscrew the mounting plate of your old thermostat
to remove it from the wall.
C
R
RC RH
W/W1
Y/Y1
WARNING: Be careful, as some thermostats may contain mercury.
13
Recycle your old th ermostat safely with your local hazardous waste facility.
ST E P 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.
Tri m p la te
Backplate
14
STEP 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.
G
Y/Y1
Rc
W/W1
C
15
TIP: Use a 3/ 16" drill bit to drill a hole for the dr ywall anchors.
ACC-
ACC+
W2
W1
R
H
C
Rc
G
Y1
Y2
O/B
PEK
R
G
C
W/W1
Y/Y1
CHECKPOINT: INSERT YOUR R WIRE(S)
Do you have more than one R wire?
(That includes R, RC, and RH)
YES NO
Insert your wires:
R or RC ➔ RC
RH ➔ RH
Rc
G
Y1
Y2
O/B
PEK
R
H
R
G
W/W1
C
Y/Y1
Insert your single wire:
R, RC , or RH ➔ RC
H
R
C
W1
W2
ACC-
ACC+
Rc
Y1
Y2
O/B
PEK
R
G
G
Y/Y1
H
R
C
W1
W/W1
W2
ACC-
C
ACC+
16
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