Ecobee EMS Si Manual

©2012 ecobee
477 Richmond Street West | #210
Toronto | Ontario | M5V 3E7 | Canada
Toll free 1.877.932.6233
www.ecobee.com

MA-EMSSi-01-rev1

EMS Si

Manual

CONTENTS

GETTING STARTED 1

Before You Begin 2
HVAC System Compatibility Information 3
Approvals 4
FCC Compliance Statement 4
Specications 5
Wiring Requirements 6

INSTALLING THE EMS Si 7

Step 1. Power O HVAC Equipment 7
Step 2. Remove Existing Thermostat 7
Step 3. Install the EMS Si 7
Step 4. Connect the Wiring 9
Step 5. Power On HVAC Equipment 20

NAVIGATING THE MENUS 20

Using the Navigation Buttons 20

CONFIGURING THE HVAC SETTINGS 22

Equipment 22
Thresholds 25
Reset HVAC Equipment Settings 29
Performing a Hardware Reset 29
Rebooting the EMS Si 30
Conguring Reminders and Alerts 31
Alerts 32

AUTOMATION 34

Setting Up the Sensor Inputs 34

CONNECTING TO THE INTERNET 38

Setting Up WiFi and Obtaining a Registration Code 39
Conguring a Web Portal Account 40

USING YOUR EMS Si 42

System Mode 43
Fan 43
Weather Forecast 45
Cleaning the EMS Si 45

CONFIGURING YOUR EMSSi 46

Conguring Personal Preferences 46
Utility CPP Setting 50
WiFi 52
Creating Your Weekly Schedule 53
Using the Weekly Schedule Editor 54
Scheduling a Calendar Event 55

3-YEAR LIMITED WARRANTY 57

END-USER SOFTWARE LICENSE AGREEMENT 59

GETTING STARTED

Welcome

The ecobee Energy Management System Si (EMS
Si) is the newest technology designed for the
commercial market. It is ideal in applications
where a simple programmable Thermostat does
not provide adequate controls and functionality
and a full-scale building automation system is
too complex and cost prohibitive. The ecobee
EMS Si is user-friendly, reduces a building’s
operating costs, and delivers increased energy
conservation.

From their EMS Web Portal, users can remotely
monitor, identify, analyze and troubleshoot
performance issues; manage the temperature
and operational settings from a central location;
and take action without having to send a
technician on-site.

The ecobee EMS Si can maximize any building’s
eciency, reduce energy consumption and
deliver signicant cost savings

Technical Support

Our technical support team is available to
answer your questions at 1.877.932.6233, or via
email at [e-mail].

1

Before You Begin

This product is intended to be installed by
trained service professionals.

This manual explains the procedures for
installing the ecobee EMS Si. Please read it
carefully before beginning the installation.

The EMS Si is designed to be mounted on the
wall in a convenient location.

Caution: Disconnect electric power to the HVAC
system before installing this product. Failure
to do so could result in electric shock and/or
equipment damage.

All wiring must conform to your local electrical
code.

Mercury Notice: This product does not contain
mercury. If you are replacing a product that
does contain mercury, contact your local
waste-management authority for disposal
instructions. Do not discard the old product in
the regular trash.

ecobee

OK

MENU BACK

!

2

HVAC System Compatibility
Information

The EMS Si is designed to operate with low­voltage heating and cooling systems. It is not
designed for use with line-voltage or millivolt
heating and cooling systems.

The EMS Si supports:

Up to 2 heat and 2 cool stages on a

conventional system.

Up to 3 heat and 2 cool stages on a heat

pump system.

The ecobee EMS Si supports the following
equipment:

Equipment Supported?

Gas/Oil/Electric heating Yes
(up to two stages)

Heat pump with auxiliary heat Yes
(up to three stages)

Geothermal Heat Pump Yes

Dual fuel systems Yes

Standard electric cooling Yes
(up to two stages)

Boilers Yes

Sensors with dry contact outputs Yes

3

Approvals

This product was designed and built in accordance
to RoHS directive 2002/95/EC and contains no
hazardous substances as dened by this directive.

FCC Compliance Statement

This equipment has been tested and found to
comply with the limits for Class B digital devices,
pursuant to Part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against
harmful interference in a residential installation. This
equipment generates, uses, and can radiate radio
frequency energy and, if not installed and used in
accordance with the instruction manual, may cause
harmful interference to radio communications.
However, there is no guarantee that interference
will not occur in a particular installation. If this
equipment does cause harmful interference to radio
or television reception, which can be determined
by turning the equipment o and on, the user is
encouraged to try to correct the interference by one
or more of the following measures:

Reorient or relocate the receiving antenna.

Increase the separation between the equipment

and receiver.

Connect the equipment to an outlet on a dierent

circuit from the receiver.

Consult the dealer or an experienced radio/TV

contractor for help.

To satisfy FCC/IC RF exposure safety requirements,
a separation distance of 8 inches (20 cm) or more
should be maintained between this device and
persons. To ensure compliance, operation at closer
than this distance is not allowed.

4

FCC ID: WR9EBSTAT IC: 7981A-EBSTAT

Warning: Changes or modications not expressly
approved by ecobee Inc. could void the user’s
authority to operate the equipment.

Specications

Temperature ranges

Heat: 45 to 79 °F (7 to 26 °C)
Cool: 45 to 92 °F (14 to 33 °C)
Display: 40 to 100 °F (5 to 37 °C)
Sensitivity: +/- 1 °F (0.5 °C)
Operating: 32 to 130 °F (0 to 55 °C)

Humidity Range

Display: 20 to 90% R.H.
Sensitivity: +/- 5% R.H.
Operating: 5 to 95% R.H (non-condensing)

Dimensions

Thermostat: 5.5”W x 3.25”H x 1”D
(139.5mm H x 82.5mm W x 25mm D)

Power

24 VAC (3VA minimum)

5

Wiring Requirements

The following table shows the maximum wire lengths allowed:

Thermostat to HVAC Equipment

18 AWG 20 AWG 22 AWG

128 ft/380 m 80 ft/240 m 50 ft/150 m

Terminal Description and Electrical Ratings

Terminal Description Voltage Current Max

N/C Unused N/A N/A

Y 1st stage compressor 30V AC 3A

W (O/B) 1st stage heating 30V AC 3A
or reversing valve
changeover

G Fan 30V AC 3A

RC Cool transformer * 30V AC 3A

RH Heat transformer * 30V AC 3A

C Common 30V AC 3A

Y2 2nd stage compressor 30V AC 3A

W2 (AUX) 2nd stage heating or 30V AC 3A
1st stage auxiliary heat

R1+ Input 1+ Dry contact only

R1- Input 1- Dry contact only

R2+ Input 2+ Dry contact only

R2- Input 2- Dry contact only

* Factory jumper installed between RC and RH. Remove jumper
for 2-transformer applications. See wiring diagrams for additional
information.

6

INSTALLING THE EMS Si

There are 5 steps to install the ecobee EMS Si:

Step 1. Power O HVAC Equipment

Step 2. Remove Existing Thermostat

Step 3. Install the EMS Si

Step 4. Connect the Wiring

Step 5. Power On HVAC Equipment

Step 1. Power O HVAC Equipment

Before disconnecting the existing thermostat, or installing the
EMS Si, disconnect the power to the heating and air conditioning
equipment.

Step 2. Remove Existing Thermostat

Disconnect the wires to the existing thermostat and remove
it from the wall (if you are installing the EMS Si in the same
location).

Step 3. Install the EMS Si

The ideal location for the thermostat is approximately 5 ft (1.5 m)
above oor level in the main living area.

Do not install the thermostat:

Close to sources of heat such as incandescent lights

Near supply heating/cooling sources

In direct sunlight

On exterior, non-insulated or poorly insulated walls

In the kitchen or other areas of potentially high heat and/or

humidity

7

In an area that could restrict air ow

To install the thermostat:

1. Gently separate the backplate from the thermostat.

2. Place the thermostat backplate on the wall. Make sure that
any existing wires can be inserted through the opening for the
wiring.

3. Using the backplate as a template, mark the location of the
mounting holes on the wall as shown below.

4. Move the backplate out of the way and make holes where
indicated in step 3. The mounting holes can accommodate a #6
pan-head screw. It is recommended to use the included fasteners
to ensure proper tting of the front housing.

5. Use the included drywall plugs (or other suitable anchors) to
ensure the thermostat can be mounted securely to the wall.

6. Fasten the backplate to the wall using the screws provided (or
other suitable screws).

Y N/C

W

O/B

GRCRHCY2R1+R1-R2+R2-

W2

AUX

The solid color indicates mounting holes

8

9

Step 4. Connect the Wiring

You need to use low-voltage cable to connect the thermostat to the HVAC
equipment. Check the wiring diagrams on pages 8 to 17 for the number of
wires required.

Note: There is a factory installed jumper between R/H and R/C. Ensure any
unused wires do not have exposed bare copper conductors.

To connect the thermostat to the equipment:

1. Connect the wires as shown in the wiring diagrams.

2. Attach the EMS Si to the backplate. Ensure that the pins on the
thermostat align with the terminal block on the backplate.

Wiring Diagrams

The following diagrams show how to connect the thermostat terminals to
various HVAC equipment.

10

YN/C

W

O/B

GRCRHCY2R1+R1-R2+R2-

W2

AUX

1-stage AC

C

24V

Y

G

R

W

C

HUM

1-stage Furnace

EMS Si Thermostat

Single stage heat/cool

11

YN/C

W

O/B

GRCRHCY2R1+R1-R2+R2-

W2

AUX

EMS Si Thermostat

2-stage AC

Y2

R
C

Y1

Y

G

R

W

C

HUM

1-stage Furnace

Single stage heat, dual stage cool

12

YN/C

W

O/B

GRCRHCY2R1+R1-R2+R2-

W2

AUX

EMS Si Thermostat

Y1

G

W2

W1

HUM

C

R

Y2

2-stage Furnace

1-stage AC

C

24V

Dual stage heat, single stage cool

13

YN/C

W

O/B

GRCRHCY2R1+R1-R2+R2-

W2

AUX

EMS Si Thermostat

Y1

G

W2

W1

HUM

C

R

Y2

2-stage Furnace

2-stage AC

Y2

R

C

Y1

Dual stage heat, dual stage cool

14

YN/C

W

O/B

GRCRHCY2R1+R1-R2+R2-

W2

AUX

EMS Si Thermostat

O

W

Y/Y2

C

G

R

Air Handler

1-stage Heat Pump

W2

R

Y

C

O

Single stage heat pump with auxiliary heat

15

YN/C

W

O/B

GRCRHCY2R1+R1-R2+R2-

W2

AUX

EMS Si Thermostat

O

W

Y/Y2

C

G

R

Air Handler

2-stage Heat Pump

W2

Y1

R

Y2

C

O

Dual stage heat pump with auxiliary heat

16

YN/C

W

O/B

GRCRHCY2R1+R1-R2+R2-

W2

AUX

EMS Si Thermostat

1-stage AC

C

24V

Boiler

C

R

W

Y1

R

C

Y2

G

Air Handler

Boiler with air handler and single-stage cool

* Remove RH/RC factory jumper

C terminal to be connected to heating

transformer common

17

YN/C

W

O/B

GRCRHCY2R1+R1-R2+R2-

W2

AUX

EMS Si Thermostat

1-stage AC

C

24V

2-stage Boiler

C

W2

R

W1

Y1

R

C

Y2

G

Air Handler

Dual stage boiler with air handler and single stage cool

* Remove RH/RC factory jumper

C terminal to be connected to heating

transformer common