ecobee

Installing Your EMS

Prior to installing the ecobee EMS, we recommend that you consider the following: 

 

Where is the ideal location to mount the Equipment Interface?

  • On a relatively flat surface
  • In an environment that does not exceed the temperature or humidity level outlined in the specification section of this manual.
  • In a location that is within the maximum wiring distance of the HVAC equipment and the thermostat.

 

How do I intend to power the ecobee EMS thermostat system?

  • Does the HVAC system control board have enough spare capacity to power this system?
  • Do I need to provide a 24VAC transformer?
  • Do I have access to a 120V electrical output to use the optional 12VDC power adapter?

 

Where is the optimum location for the thermostat?

  • Within the maximum wiring distance to the Equipment Interface.
  • Receiving good reception of Wi-Fi signal (3 bars or more) from the location.
  • If Wi-Fi reception is sub-optimal, what will be relocated, the thermostat or Wi-Fi router?
  • Do the temperature and humidity levels adequately represent the area controlled by the HVAC system?

Before you install your EMS, choose a suitable location as outlined in the Planning the Install section.

Do not install the EMS:

  • Close to sources of heat such as incandescent lights or heating/cooling registers
  • In direct sunlight
  • On exterior, non-insulated or poorly insulated walls
  • In the kitchen or other areas of potentially high heat  and/or humidity
  • In an area that could restrict air flow

 

To install the EMS:

 

1. Remove the front cover of the thermostat, insert a flat-head screwdriver into one of the slots as shown below and gently twist the screwdriver.

side-idt-install.jpg

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.

 

back if idt-install.jpg

 

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.

5. Use drywall plugs or other screw anchors (not included) to ensure the thermostat can be mounted securely to the wall.

6. Fasten the backplate to the wall using the appropriate screws (not included).

1.  Choose a suitable location to mount the Equipment Interface as determined from Planning the Install section.

2.  Remove the front cover of the Equipment Interface. If necessary, insert a flat-head screwdriver into one of the slots as shown below, and gently twist the screwdriver.

open-modeule-install.jpg

3.  Place the back of the enclosure on the intended mounting surface and use it as a template to mark the location of the mounting holes as shown below.

module_back.jpg

4.  Move the back of the enclosure out of the way and make the holes where indicated in step 3. The mounting holes can accommodate a #6 pan-head screw.

5.  Use drywall plugs or other screw anchors (not included) to ensure the Equipment Interface can be mounted securely.

6.  Fasten the backplate to the wall using the appropriate screws (not included).

 

Wiring the Equipment Interface

 

1.  Disconnect the power to the HVAC equipment.

2.  Disconnect the wires going to the existing thermostat.

3.  Refer to the wiring diagrams section, connect the HVAC equipment to the Equipment Interface.

4.  Do not apply power until you have installed and connected the thermostat.

5.  Do not install the front cover on the Equipment Interface at this point.

Only four wires are needed to connect the thermostat to the Equipment Interface. If you are replacing a thermostat, you can use the existing wiring.

Note: Ensure any unused wires do not have exposed bare copper conductors.

 

1.  Connect the wires between the thermostat and EIM board as shown below.

wiresthermo_interface-BW.jpg

2.  Attach the front cover of the SMART to the backplate. Ensure the four pins on the circuit board mate with the terminal block on the backplate as shown below.

closethermo.jpg

The thermostat comes with a factory installed, coin cell battery. When replacing the battery, ensure the + side of the battery is facing out and the battery contacts remain in the upright position (not bent underneath the battery). The battery should snap in easily.

Battery_install.JPG

Once you’ve completed the wiring of the thermostat and Equipment Interface, you can apply power to the Equipment Interface and restore power to the heating and air conditioning equipment.

There are two methods of powering the thermostat. You can power it directly from a 24VAC source capable of at least 3VA.

24V_diagram.JPG

 

The second method requires the optional 120V to 12VDC power adapter. Plug the power supply into a standard electrical outlet and plug the barrel connector into the Equipment Interface.

installation-adapter.jpg  pluginmodule.jpg

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