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Emerson Sensi ST75 - User Manual

Emerson Sensi ST75
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PRO Installation
Touch Wi-Fi
Thermostat
Question and Answer IconNeed help?

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Emerson Sensi ST75 Specifications

General IconGeneral
TypeSmart Thermostat
Product TypeThermostat
Wi-Fi ConnectivityYes
Operating ModesHeat, Cool, Auto, Off
Programmability7-day scheduling
Warranty3-year limited warranty
CompatibilityHVAC systems
Mobile AppSensi app
Voice ControlAmazon Alexa, Google Assistant, Apple HomeKit
DisplayBacklit
Power Source24V AC
InstallationDIY-friendly
StagesUp to 2 heat/2 cool
Smart Home CompatibilityAmazon Alexa, Google Assistant, Apple HomeKit, SmartThings
FeaturesGeofencing

Summary

Sensi Partner Program

Need Help?

Easy to Install and Connect

Mobile Device Compatibility

Lists compatible mobile operating systems for the Sensi app.

Smart Home Platform Compatibility

Lists compatible smart home platforms for the Sensi thermostat.

HVAC System Compatibility

Whats in the Box?

Items Needed for Wi-Fi Connection

Lists prerequisites for connecting the thermostat to Wi-Fi.

Installation Guide

Thermostat Configuration

Configuration Menu Items Reference

Guide to thermostat menu options, defaults, and available settings.

System Testing Procedures

Fan Operation Test

Steps to verify the proper operation of the thermostat's fan control.

Heating System Test

Auxiliary System Test

Cooling System Test

Troubleshooting Guide

Connecting Sensi to Wi-Fi

Important Warnings and Cautions

Transformer Phase Warning

Identifies and addresses issues with out-of-phase transformers.

Electrical Safety Caution

Emphasizes disconnecting power before installation to prevent hazards.

Voltage Requirements Warning

Warns against using circuits exceeding specified voltage for safety.

E5 Alert Caution

Advises contacting support for specific error codes like E5.

California Proposition 65 Warning

Notifies about chemicals linked to cancer and birth defects.

Mercury Notice

Provides information on mercury content and proper disposal.

Customer Information

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