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Honeywell RTH8500WF Wi-Fi Series User Manual

Honeywell RTH8500WF Wi-Fi Series
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Quick Start Guide
Wi-Fi Touchscreen
Programmable
Thermostat
RTH8500WF Wi-Fi Series

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Honeywell RTH8500WF Wi-Fi Series Specifications

General IconGeneral
Wi-Fi ConnectivityYes
DisplayTouchscreen
Programmability7-Day Programmable
Operating ModesHeat, Cool, Auto, Off
TypeSmart Thermostat
CompatibilityHeating and Cooling Systems
Temperature Range40°F to 90°F
Mobile AppHoneywell Home App
Voice ControlWorks with Amazon Alexa, Google Assistant
Power Source24 VAC (C-wire required for continuous power)
StagesUp to 2 Heat / 2 Cool
Fan ModesAuto, On, Circulate
Remote AccessYes
AlertsHigh/low temperature alerts, filter change reminders

Summary

Install Your Thermostat

Switch OFF Power to Heating/Cooling System

Protect equipment by turning off power at the breaker box or system switch.

Remove Old Thermostat Faceplate

Take a picture of wire connections before disconnecting. Check for C wire availability.

Label Wires

Use supplied tags to label wires according to old terminal designations, not wire color.

Remove Old Wallplate

Detach the old wallplate from the wall after all wires are labeled and disconnected.

Separate Thermostat and Wallplate

Gently pull the thermostat unit away from its wallplate using the designated finger holds.

Mount New Wallplate

Secure the new wallplate using provided screws and anchors, checking alignment.

Connect Wires to Terminals

Match wire tags to terminal labels, insert wires securely, and verify connections.

Install Backup Battery

Insert the coin cell battery observing polarity for time/date backup during power outages.

Attach Thermostat to Wallplate

Align and snap the thermostat unit onto the mounted wallplate.

Switch Heating/Cooling System ON

Verify C wire, secure system door, then restore power at the breaker or power switch.

Set Date and Time

Adjust the displayed time and date using up/down buttons for accurate operation.

Determine Heating/Cooling System Type

Set the correct system type for proper thermostat function and to prevent damage.

Test Thermostat Operation

Engage the SYSTEM button to test heating or cooling functions and confirm system readiness.

Connect to Wi-Fi Network

Connect Wireless Device to Thermostat

Use a tablet, laptop, or smartphone to connect to the thermostat's temporary Wi-Fi network.

Join Home Wi-Fi Network

Access setup page via browser, select home network, and enter credentials to connect.

Confirm Wi-Fi Connection

Verify the thermostat displays a successful connection status to your home Wi-Fi network.

Register for Remote Access

Open Total Connect Comfort Website

Go to the specified website to begin the registration process for remote thermostat access.

Login or Create Account

Log in to an existing account or create a new one, following on-screen and email prompts.

Register Thermostat with Identifiers

Enter thermostat's MAC ID and MAC CRC from the ID card for successful remote access registration.

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