• Bundle of TEN (10) EMS Si thermostats
  • Manage remotely unlimited number of thermostats
  • Free energy management portal
  • Remote diagnostics
  • Other automation features
  • Ideal for multi-site stores, hotels, hospitals, college dorms
  • Special pricing for contractors

Uncover big savings with EMS Si:
The most cost-effective energy management solution!
Heating and cooling account for up to 63% of light-commercial energy usage, and the US EPA suggests that 30% of energy used in these facilities is wasted. With ecobee, you can monitor and control your commercial building’s HVAC system and automate ancillary devices— all at a fraction of the price of a Building Automation System.

Anytime, anywhere
Manage an unlimited number of thermostats, individually or as groups, across various locations with multiple users, all from a single web portal or smartphone app.

Quick ROI
With an average payback of less than one year, and no recurring fees - ecobee improves your bottom line year after year.

Controlled access
Administrators have complete control of thermostat settings and can establish different permissions for building managers and other employees.
Administrators can limit employee access or lock thermostats to minimize energy waste.

Easy monitoring
ecobee’s remote diagnostics and reporting tools provide insight to help you remotely identify and assess problems, reducing administration time and HVAC service costs.

Smart, really smart
Let us do the work for you. Our intelligent algorithms use thousands of data points to optimize for comfort when a building is occupied, and save energy when it’s not.

Maximize efficiency
Apply standardized operating procedures across all locations so you’re always running the right schedule in the right place at the right time.

Product specifications
Wire terminals
• R2- • W2 AUX • Rc 
• R2+ • Y2 • G
• R1- • C • W O/B
• R1+ • Rh • Y

Temperature range
Set point: 45° to 92°F (7°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% RH
Sensitivity: +/- 5% RH
Operating: 5% to 95% RH (non condensing)

Compatibility
• Conventional (2H/2C)
• Heat pump (3H/2C) incl. 1-stage
auxiliary heat
• Gas, oil, electric
• Dual fuel

Automation
Two dry contact inputs and/or 10K resistive temp sensors that can be programmed to:
• Act as the thermostat control sensor
• Monitor freezers and coolers
• Adjust the heat and or cool set temperatures
• Switch the system to occupied or unoccupied mode
• Shut down the compressor
• Turn fan on
• Disable heat

Powering method
24VAC (3.5VA maximum)

Connectivity & security
ecobee uses the latest encryption technologies to ensure that data is protected both in transmission and network access. The ecobee EMS Si is designed to support:
• 802.11 b/g/n wireless routers
• WEP 64, WEP 128, WPA and WPA2 encryption methods
• 168 bit SSL encryption
• DHCP (dynamic) or Static IP addressing