Specification Sheet

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EMS Si
EMS Si
Easy installation
• Installation and set-up in less than one hour
• Automatically detects the local wi-fi network
• No gateway required
Unparalleled value
• Free software upgrades
• No recurring fees
• 3-year warranty
Peace of mind
• Automatic alerts and service reminders
• HVAC Reports for remote diagnostics and troubleshooting
Product specifications
Wire terminals
• R2-
• R2+
• R1-
• R1+
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
Customer highlight
• W2 AUX
• Y2
• C
• Rh
• Rc
• G
• W O/B
• Y
Taco Bell Restaurants
Problem
With 40% of energy consumption directly related to heating
and cooling equipment, Taco Bell wanted a solution that
would reduce their energy footprint and operational costs,
and help protect perishable food items.
Outcome
• 8-12% month-over-month savings
• $1000’s in food spoilage prevented with alerts from
temperature sensors in freezers and refrigerators
• Significant reduction in operational costs
• Reduction in service calls with remote diagnostics and
troubleshooting
“Many of the competitive products we examined just
weren’t as intuitive. ecobee had it all—it was the perfect
solution for our needs.”
— Dwayne Kostiha VP Operational Services, Austaco Ltd/
DBA Taco Bell