EMS Si - Creating an Calendar Event

Scheduling a Calendar Event

The EMS Si’s Calendar Event feature helps you conserve energy while you are away for extended periods of time. It also ensures your building is comfortable when you return. A calendar event includes a name, start date and time, as well as the end date and time. You can enter any number of uniquely named events. Other event features to choose from include:

To schedule a calendar event:

  1. From the Home screen, press MENU. Select Calendar Events.
  2. Select Add Event.
  3. Enter a Name.
  4. Enter the Start and End dates and times of your calendar event.

ecobee optimize

  • Select Yes to have the EMS Si automatically set your Heat Temperature, Cool Temperature, System Mode and Furnace Fan settings to maximize energy conservation.
  • Select No to manually configure Heat Temperature, Cool Temperature and Fan settings. These settings will be remembered the next time you create a calendar event.

Is Occupied

Select Yes if the building or area will be occupied during the calendar event.

Heat Temperature

Programs the set temperature when the system is in Heat mode (i.e., when the furnace is on). Set a lower temperature to save energy.

Cool Temperature

Programs the set temperature when the system is in Cool mode (i.e., when the air conditioner is on). Set a higher temperature to save energy. You can also choose to turn off your cooling system while you are away to save more energy.


Toggles the fan setting between ON and Auto.

  •    ON  The fan runs all the time regardless of programming or if there is a call for heat or cool. The fan will also run if the System Mode is OFF.
  •    Auto  This option turns the furnace fan on but only when the system is heating or cooling your building, or to satisfy the minimum fan run time as programmed.
  •    Fan Min On Time  This feature allows you to determine a minimum time per hour that the furnace fan will run. It results in increased air circulation and a more consistent temperature within the building, and is more cost effective than choosing the ON fan setting.

In either mode, the EMS Si will ensure that when your calendar event ends, the EMS Si will revert to the regular settings.

Note: If you were running your regular program prior to the start of your calendar, on your return, the EMS Si will restore your building to those settings. If you were in Hold mode prior to the start of your calendar event, the EMS Si will restore the building to whatever the set temperature was just prior to your calendar event.

Delete Event

You can delete individual or all calendar events:

  • To remove an individual calendar event, display the details about the event, then select Delete Event ▶ Yes.
  • To remove all calendar events, display the Calendar Event menu and select Delete All ▶ Yes.

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