Ecobee ecobee3 lite User manual

1
ecobee3
Quick Start Guide
Installation Guide
DRAFT

2
what’s in the box?
ecobee3
thermostat
remote sensor
(and stand)
power
extender kit
optional trim plate installation materials
ecobee3 Installation Guide

3
wiring
configuration
equipment
configuration
set your
preferences
Wi-Fi
configuration
register
your ecobee
first run
The first time your ecobee3 powers on, it will begin the first run
process. This ensures everything is connected, working properly,
and it shows you where to find these settings in the menu.

4
get to know your ecobee3
indoor temperature
adjust temperature
system mode
schedule
menu
savings
live weather
quick changes
indoor humidity
motion sensor
A.
B.
C.
D.
E.
F.
G.
H.
I.
J.
A
C
D
J
E
F
G
B
H
I

5
ecobee optimizes settings to
where you are in the home.
Follow me
ecobee will detect when
you're away and auto-adjust
your schedule for you.
Auto-away
remote sensors
Pull the plastic tab to power on the device. It will connect to your
ecobee3 automatically.
place at thermostat height; on a shelf or mounted to a wall
avoid placing in areas with direct sunlight
mount on an interior wall for more accurate temp reading

6
quick tips
Press the quick changes button and easily
customize fan runtime.
How do I control my fan?
Press the quick changes button and easily switch
between home and away.
How to switch between home and away?
Press the menu button , select system , select
HVAC and easily switch between heat and cool.
How do I switch between heat and cool?
1Press the menu button , select schedule and
customize your schedule.
How do I change my schedule?
1

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a few more tips
Log in to your personal web portal at ecobee.com to
customize the operation of your ecobee3 and learn
how to use it to save energy and money.
Accessing Web Portal
Looking for more info on your ecobee3? Visit our
online user guide at ecobee.com/support/ecobee3.
User guide
ecobee3 supports both iOS and Android devices.
Visit your device’s app store to download the free
application for your phone or your tablet.
Control from your phone
When alerts and reminders are sent to your
thermostat your menu button will appear like this,
press the button to view them.
Alerts and reminders
3

8
Welcome!
If you have any questions, we have answers. Contact us
by email or telephone for help. Or, visit our web page for
tutorials, how-to videos, and answers to frequently asked
questions (FAQs).
www.ecobee.com
1.877.932.6233 (North America)
1.647.428.2220 (International)
[e-mail]
Compatible systems
ecobee3 works with most centralized residential heating
and cooling systems.
Heating: 1 or 2 stages + fan
Cooling: 1 or 2 stages + fan
Heat pumps: 1 or 2 stages + auxiliary heat + fan
Accessories: Dehumidifier, humidifier or ventilation
device

9
Terminal descriptions
G Fan
RCCool transformer
RHHeat transformer
O/B Heat pump reversing value
Y Y1, Y2: Used for 1 - 2 stages of convential A/C or
1 - 2 stages of heat pump compressor
W W1, W2: Used for 1 - 2 stages of convential heat or
1 - 2 stages of heat pump auxiliary heat
C 24VAC common
ACC $FFHVVRU\8VHGIRUGHKXPLGLÀHUVKXPLGLÀHUV
ventilators, HRVs or ERVs
ecobee3 is designed for 24VAC with a 2A maximum current.
Do not connect it to line-voltage or high-voltage systems.
!

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Items included in box
Rc
G
Y1
W1
(AUX1)
O/B ACC-
ACC+
W2
(AUX2)
Y2
C
RH
70
35%
70
ecobee3thermostat ecobee3base with
small trim plate
Mounting screws
& anchors
Large trim plate

11
Double-sided
adhesive
Installation and
Quick Start guides
ecobee3sensor with
optional stand
Power Extender Kit (PEK)

12
Items you’ll need
Before you start
Review the all the instructions before you start to ensure that there are
no surprises during installation.
Phillips screwdriver

13
Step 1. Power o your HVAC system
Before doing anything else, power o your system. If your
HVAC equipment doesn’t have a master switch, go to your
circuit breaker box and turn o the breaker.
Verify that the equipment is o by attempting to adjust
the temperature with the existing thermostat.
Power off your system

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Step 2. Remove old thermostat
If you don’t have an existing thermostat, skip to step 3.
Remove the cover from your old thermostat. Most snap o
easily but some may be attached by screws.
Warning! If your old thermostat has 110/120V
wires connected to the thermostat, it is a high
voltage system and is not compatible with
your ecobee3.
Rc Rh G Y W C
110/120V
!

15
Look at the wires coming out of the wall. Take a picture for
reference.
Be careful not to let any wires fall back into the wall! Tip: Leave
the wires attached to the base until you are ready to install your
ecobee3.
Rc Rh G Y W C
C
R
Y
W
G
Using the old
thermostat base as
a guide, label each
wire coming out of
the wall with the
provided stickers.
Discard any jumper
wires between
Rh, Rc, or R. Your
ecobee3does not
need them. They
are jumpered
automatically. When done, remove the old thermostat
base by unscrewing it from the wall.

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Step 3. Install Power Extender Kit
(PEK)
If you have a wire labelled “C” or “common”, skip this step.
Warning: If you are not comfortable with working with your
HVAC wiring, contact ecobee customer support or hire a
professional installer.
Some thermostats do not have a C-wire. The C-wire is
used to provide power to the thermostat. In this case, the
PEK can use the existing wires to power your thermostat.
The PEK requires your system to have the following wires:
• 4 wires: W, Y, G, and R (or RC or RH)
• 3 wires: Y, G, and R (or RC or RH)
1. Make sure that your HVAC
equipment is o.
2. Open your HVAC equipment’s
control panel. Take a picture for
reference.
!

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3. Using the stickers provided with the PEK, label the
wires in the control panel leading to the thermostat.
4. Open up the PEK. It has two rows of terminals (one
side is for thermostat connections, the other side,
pre-wired, is for the equipment panel connections.
PEK Cover
PEK Base
G
R
Y
W
W
G
R
Y
Y
W
G
C
R
Pre-installed wires
to HVAC
Wires connecting to
thermostat

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5. Disconnect the wires from the control panel and
reconnect them to the corresponding terminals on
the thermostat side of the PEK.
6. Using the wires provided with the PEK, connect
the terminals on the equipment side of the PEK to
the corresponding terminals in the control panel.
Make sure to connect the R/Rh/Rc wire to the same
terminal on the control panel that was previously
connected
7. Close the PEK and use the provided double-sided
tape or screws to mount it in a dry location that
doesn’t strain the wires.
8. Close the door to your HVAC equipment’s control
panel.

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Step 4. Attach base to wall
Be careful that the existing wires don’t fall back into the wall.
Position the base of your ecobee3 and mark the mounting
holes on your wall with a pencil.
Attaching the trim plate
If the smaller trim plate doesn’t cover the marks left by the
previous thermostat, attach the larger trim plate instead.
Remove the center piece
by gently pushing its left
side towards you.
Insert the center piece using the tabs
on the right as a guide. It will snap
into place when correctly inserted.

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Secure the base
Use the drywall anchors and screws provided to secure the
base to the wall.
Ensure the base is straight by
checking the bubble on the
built-in level