Specifications - Ecobee Smart Thermostat Installation Manual

which can be determined by turning the equipment off and on, the
user is encouraged to try to correct the interference by one of more of
the following measures:
Reorient or relocate the receiving antenna
Increase the separation between the equipment and receiver
Connect the equipment into an outlet on a circuit different from
that to which the receiver is connected.
Consult the dealer or an experienced radio/TV contractor for help.
Warning: Changes or modifications not expressly approved
by ecobee Inc. could void the user's authority to operate
the equipment.
To satisfy FCC/IC RF exposure safety requirements, a separation
distance of 20 cm or more should be maintained between this
device and persons. To ensure compliance, operations at closer
than this distance are not allowed.
FCC ID: WR9EBSTAT IC: 7981A-EBSTAT

Specifications

Temperature ranges
Heat: 45 – 79°F (7 – 26°C)
Cool: 58 – 92°F (14 – 33°C)
Display: 40 – 100°F (5 – 37°C)
Sensitivity: +/- 1°F (0.5°C)
Operating: 32 – 130°F (0 – 55°C)
Humidity Range
Humidify: 20 to 50% R.H
Dehumidify: 30 to 60% R.H
Display: 0 - 90% R.H
Sensitivity: +/- 2% R.H.
Operating: 5 – 95% R.H
Dimensions
Smart Thermostat: 5.5"W x 3.25"H x 1"D (139.5mm H x 82.5mm W x
25mm D)
Equipment Interface: 4.6"W x 10"H x 1.3"D (118mm W x 254mm H x
32mm D)
Power
AC Transformer - 24 Vac - 3VA Minimum (not included)
Optional Power Adaptor – 120V 50/60Hz to 12V DC 1A, (optional)
Battery – CR2032 – 3V lithium coin cell (included)
5
Wiring Specifications
Refer to this table to determine maximum wire lengths allowed:
Smart Thermostat to Equipment Interface
18 AWG 20 AWG
1250ft/380m 790ft/240m
Equipment Interface to heating/air equipment
18 AWG 20 AWG
128ft/39m 80ft/24m
Terminal Description and Electrical Ratings
Terminal Description
Y 1st stage cooling
W (O/B) 1st stage heating
(or changeover)
G Fan
W2(AUX) 2nd stage heating
(or 1st auxiliary heat)
R/H Heat transformer return
R/C Cool transformer return
ACC1 1st accessory relay
ACC1r 1st accessory relay return
ACC2 2nd accessory relay
ACC2r 2nd accessory relay return
ACC3 3rd accessory relay
ACC3r 3rd accessory relay return
IN1 + Input 1 + Dry contact only Dry contact only
IN1- Input 1 - Dry contact only Dry contact only
IN2+ Input 2 + Dry contact only Dry contact only
IN2- Input 2- Dry contact only Dry contact only
+12v 12V DC power to thermostat
GND GND to thermostat
D+ Data + communication line
D- Data – communication line
6
22 AWG
500ft/150m
22 AWG
50ft/15m
Voltage Current max
30V AC 3A
30V AC 3A
30V AC 3A
30V AC 3A
30V AC 3A
30V AC 3A
30V AC 3A
30V AC 3A
30V AC 3A
30V AC 3A
30V AC 3A
30V AC 3A
8-14V DC 600mA
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