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General| Type | Programmable Thermostat |
|---|---|
| Connectivity | Wi-Fi |
| Stages | 2 Heat / 2 Cool |
| Display | Color touchscreen |
| Voice Control | Amazon Alexa, Google Assistant |
| Indoor Air Quality (IAQ) Monitoring | Yes |
| Power Source | Battery |
| Programmability | 7-Day Programmable |
| Remote Access | Yes |
Emphasizes that a trained technician must install the product to prevent damage or hazards.
Details the low battery warning and the consequences of not replacing batteries promptly.
Warns to disconnect power before installation to prevent shock or equipment damage.
Specifies wire gauge, shielding, and adherence to NEC Class II circuit requirements.
Details terminal functions for conventional and heat pump systems (2H/2C, 3H/2C).
Illustrates wiring for 2H/2C (1 & 2 transformer), 3H/2C heat pump, heat-only, and cool-only systems.
Instructions on how to enter the setup menu by pressing MENU and holding TECHNICIAN SETUP.
Details settings like Filter Reminder, Room Calibration, Compressor On Time, Short Cycle Delay, and Swings.
Enables heat pump mode, showing EM.Heat option and defining Y, W/E, W2 terminal functions.
Configures turning off the heat pump when auxiliary gas heat is active for dual-fuel systems.
Allows setting up the thermostat for 2 or 3-stage heat pump systems.
Defines options for no sensor, indoor, outdoor, or floor sensors (requires R251S/R250S).
Sets balance points for gas auxiliary or electric auxiliary to optimize heat pump usage.
Lists operating ranges, load rating, accuracy, power source, ambient conditions, and dimensions.
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