CONFIGURING YOUR EMS Si
This section describes how configure the personal preferences, temperature settings, and operation of your EMS Si.
Note: You can also configure your EMS Si from your personalized Web Portal. Simply open a web browser, go to ecobee.com, and log in.
Configuring Personal Preferences
The Preferences menu has settings for personalizing your EMS Si.
To configure personal Preferences:
From the Home screen, press MENU. Select Settings ▶ Preferences. Adjust each option to your personal preferences.
You can customize the name of your EMS Si to suit your needs (i.e. Main Floor). This is useful if you have multiple systems or zones. You can view and edit your EMS Si name in the About menu on your EMS Si and also in your online Web Portal.
Date and Time
Select Date & Time to:
Set the current date.
Set the current time.
Select a 12-hour or 24-hour time format.
Select your time zone.
Enable or disable daylight savings adjustments.
If you are connected to the Internet, the time and date are programmed automatically.
The color screen has adjustable backlight brightness. You can control the intensity when the screen is active (i.e., when you are pushing buttons) and when the display is in standby mode (idle screen).
Select Brightness to:
Set the Active brightness intensity.
Set the Standby (idle screen) brightness intensity.
Set the minimum time the EMS Si will stay in active brightness before switching to standby brightness.
You can configure what information is displayed on the screen when the display is in standby mode (idle screen).
Select Idle Screen to:
Enable or disable the idle screen from appearing.
Show or hide the cool/heat set point bubbles.
Show or hide the current time.
Whenever you manually adjust the set temperature, the EMS Si will indicate you are in a “Hold” mode. You can select how long the EMS Si will hold the new temperature before reverting back to the regular program:
Hold 2 hours
Hold 4 hours
Until next transition Thermostat will hold temperature until the next program period.
Indefinite Thermostat will hold temperature until you press OK.
Update Schedule When you adjust the set temperature, the system will update the temperature in the Weekly Schedule for the current period.
Ask Me Every time you adjust the set temperature you will be asked which of the options you would like to choose.
Select Temperature Display to select Fahrenheit (°F) or Celsius (°C).
Quick Save Settings
In Quick Save mode, your system will automatically increase (in cool mode) or decrease (in heat mode) the temperature set point by the pre-configured amount.
Quick Save mode can only be activated from the Web Portal or from the ecobee smartphone/tablet application.
You can protect your EMS Si so that certain features will require the user to enter a 4-digit access code. Use the arrow keys to highlight a number and then press OK. When you are done, select Save. The access control will be required once the idle screen is displayed.
To disable this feature, delete the number by selecting multiple times.
You can also configure the level of access control:
Restrict All Access Unauthorized users will only be able to view the home screen and the weather information.
Restrict Details Access The code is required to access the Details screen.
Restrict Program Access The code is required to view and modify the EMS Si’s Weekly Schedule.
Restrict Vacation Access The code is required to view and create a Calendar Event.
Restrict QuickSave The code is required to exit QuickSave mode from the Web Portal.
In all cases, once the code is enabled, it will be required to access any of the list items in the Settings menu, with the exception of the About screen. Once a valid code has been entered on the EMS Si, access to restricted features will be allowed until the EMS Si backlight timer has expired.
You can configure the EMS Si so only a specific heat and/or cool set point range is permitted.
Heat Min Temp Press ▲ or ▼ select the minimum heat set point then press OK. Users will not be able to set the EMS Si to a temperature below this limit.
Heat Max Temp Press ▲ or ▼ select the maximum heat set point then press OK. Users will not be able to set the EMS Si to a temperature above this limit.
Cool Min Temp Press ▲ or ▼ to select the minimum cool set point and then press OK. Users will not be able to set the EMS Si to a temperature below this limit.
Cool Max Temp Press ▲ or ▼ to select the maximum cool set point and then press OK. Users will not be able to set the EMS Si to a temperature above this limit.
Recovery options allow the EMS Si to learn how your heating and cooling system works, taking into account infrastructure, weather and historical operating performance so that your building is a comfortable temperature as soon as you walk in the door.
Smart Recovery Heat The EMS Si will start heating at the optimum time to ensure the set point is reached at the programmed time.
Smart Recovery Cool The EMS Si will start cooling at the optimum time to ensure the set point is reached at the programmed time.
Random Start Heat Programming a time in this section will produce a random delay when there is call for heat. In applications with multiple heating systems, this prevents all the systems from activating at the same time (thus creating a peak power demand). Press ▲ or ▼ to select a delay time and then press OK.
Random Start Cool Programming a time in this section will produce a random delay when there is call for cooling. In applications with multiple cooling systems, this prevents all systems from activating at the same time, (thus creating a peak power demand). Press ▲ or ▼ to select a delay time and then press OK.
Utility CPP Setting
This section is only applicable if your utility company is running a Critical Peak Pricing program that you have agreed to be a part of. Contact your local electrical utility company for information about programs in your area.
To configure utility CPP settings:
From the Home screen, press MENU. Select Settings ▶ Preferences. Select Utility CPP Settings.
Adjust each option to your preferred strategy.
Your utility may send voluntary events to your EMS Si. You can choose to Always Accept these events. In which case, you would just be notified that an event is in progress. Or if you choose Ask Me, when the Utility issues an event, you will be asked if you want to participate.
If you do not acknowledge the event prior to the start, the system will default to yes.
During a Critical Peak Pricing event the Utility may select an energy saving strategy, or allow you to use your preferred strategy. Select from one of the options as your preferred energy saving strategy to be used during Critical Peal Pricing events.
Absolute Temperature Set a specific heat and cool set point to be used when an event is initiated by the Utility company. If the set point at the time of the event is more favorable (lower in heat mode or higher in cool mode) than what you have programmed, the EMS Si will use the more favorable set point for the duration of the event.
Relative Temperature Program a temperature set back (heat) or set forward (cool) from your existing set point. For example, if you program a 4 °F set forward, and your current cool set point is 76 °F, during an event your EMS Si set point will change to 80 °F until the event has expired.
System Off If this option is selected, the EMS Si will turn off heating and cooling for the duration of this event.
Duty Cycle This option allows you to program the maximum amount of time the system will run during a 1 hour period. For example, if you select 30%, the air conditioner will run for a maximum of 18 (0.3 x 60) minutes regardless of whether the set point has been met. 0% essentially turns the system off, whereas 100% runs the system at full capacity.