Round Smart Thermostat - Second Generation (RCH9310WF)


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A thermostat that adapts to your life. You can control the Round Smart Thermostat from anywhere, or let it manage your comfort and savings automatically, so there’s no learning curve, no rigid scheduling — just comfort when you’re home, and energy savings when you’re away
Installing the Round Smart Thermostat is easy. First of all, check if it’s compatible with your home. Then let the app guide you through each simple step. If you prefer, you can always download the Round Smart Thermostat installation manual below.
Comfort. Savings. Your life – in tune.

Honeywell Home was designed for crazy schedules and spur-of-the-moment activities. You can control the Round Smart Thermostat from anywhere on your smartphone, or let it adapt to your life as you go.
The Round Smart Thermostat is ENERGY STAR® certified and can save energy when you’re away, and get the house warm when you’re heading home. No more wasted energy when you’re out for the night, and no more getting in from work to a cold house. It’ll even let you know when the filter needs changing.

A round, polished glass face. Motion-sense illumination. Simple touch-screen. Beautiful design.
The Honeywell Home App uses your smartphone’s location to work out where you are. 200 miles away? Then you probably don’t need the heating on. Just round the corner, heading for home? Time to get the place warm.
The Home App can send you notifications when the humidity changes, and if the temperature is too high or too low.
Perfect temperature
In winter, it’s not just the inside temperature that affects how you feel. Humidity and the outside temperature play a part too. With intelligent comfort control, the temperature feels just right, all the time.
HomeKit and SmartThings
The Round Smart Thermostat is fully compatible with Apple HomeKit, Samsung SmartThings, and other ecosystems. So all your home comforts are taken care of – the simple, intuitive way. Find out more here.
  • Product dimensions: 3-3/4 in. diameter x 3/4 in. deep
  • Model number: RCH9310WF
  • US Retail: RCH9310WF5003
  • US Trade: TH8732WFH5002
  • CA Retail: RCH9310WF5011
  • CA Trade: TH8732WFH5010
  • Formerly known as the Lyric Round Thermostat
Energy Savings
Our energy savings calculator will show you how much you could save with the ENERGY STAR certified Round Smart Thermostat.

Lyric™ Thermostat

Lyric Thermostat
Lyric Thermostat

Will the Round Smart Thermostat work with your heating and cooling system?

The Round Smart Thermostat works with common 24-volt systems such as forced air, hydronic, heat pump, oil, gas and electric. Not sure what system you’ve got? Watch the video to find out more.

It doesn’t work with electric baseboard heating (120/240V)

Minimum requirements
You’ll need an 802.11 b/g/n wireless router and a smartphone or tablet with Android 4.2 and above or iOS 8.4 and above.

Installation: Two options

Use the app

Download the Home app from the App Store or Google Play. Then follow the instructions.

Download the manual

Prefer written instructions? Download the manual from the Resources Section below.


Lyric Thermostat
Identifying your heating and cooling system type
Lyric Mobile App
Home app - Geofence
Home app - Install


HomeKit is Apple's connected home technology used to seamlessly integrate and control HomeKit devices in your home from your mobile device. Within our 2nd Generation Lyric Thermostat, Honeywell has implemented the HomeKit Chip and updated the software so that this is a certified HomeKit Product.

For more information on HomeKit, please visit Apple's website.

You can tell whether or not your Lyric is a second Generation Lyric Thermostat and HomeKit is enabled by looking for the "Works with Apple HomeKit" logo on the packaging.

You can also tell by the model number located on the back of your Lyric thermostat. These Lyric models are HomeKit enabled: TH8732WFH5002, TH8732WFH5010, RCH9310WF5003, RCH9310WF5011.

To use your second generation Lyric thermostat with HomeKit functionality such as Siri™ you will need a C wire powering your thermostat. Read more about C wires and thermostat wiring here.

Getting started with Lyric is simple

Once you've bought your Lyric products, your smarter home is just a few simple steps away.


Search 'Lyric Thermostat' in the Apple App Store or the Google Play store to download or update the free app to your smartphone or tablet. Setup is a cinch with the guided walk through.

In your Apple mobile device settings, open your iCloud settings and ensure you are logged into iCloud, your iCloud Drive is on, and your iCloud Keychain is on. In your Apple mobile device settings, open your Lyric app settings and turn on Home Data.

Lyric products are wireless - they use your home's Wi-Fi network. It's easy to connect everything using the app.

Customizing Lyric is as simple as a tap and a swipe. Adjust preferences, decide who gets alerts, and fine-tune your home comforts to the way you live.

Everything's taken care of. Lyric gives you more control of your home - whether you're staying in, heading out, or a thousand miles away.

The Lyric Round™ Wi-Fi thermostat works with Apple Watch, Samsung SmartThings and Apple HomeKit. For a complete list of current integrations, please visit:

To ensure your second generation Lyric thermostat can be controlled by Siri or an Apple HomeKit app you will need to ensure certain Apple mobile device settings here.

For more information, please watch this instructional video:

If your home Wi-Fi network is visible in the Lyric app and you have provided the correct Wi-Fi network information, but your thermostat has not connected to your in-home Wi-Fi, you may need to troubleshoot your Wi-Fi network. First, confirm that your router is using a supported security standard. Lyric works with the following security standards:

  • OPEN

Second, confirm that your Wi-Fi network is compatible. All Honeywell Wi-Fi thermostats, including the Lyric thermostat, are compatible with the 2.4 GHz B, G and Mixed Wi-Fi networks. Third, some routers are incompatible with the Lyric thermostat's low-power features. To see a list of compatible routers, visit here. Note that this is not an exhaustive list of compatible routers.

In the box you will find the Lyric thermostat, wallplate, optional trim ring, two screws for mounting, wall anchors and a Quick Start Guide.
The Lyric thermostat is designed to work on most low voltage heating and cooling systems, at 24 Volts. Gas and oil furnaces, heat pumps, and hot water systems are examples of these low voltage systems. The thermostat can also support multi stage systems with more than one stage of heating and cooling. The Lyric thermostat does not work for 110V or higher line voltage systems, such as electric baseboard heaters. Thick black, red or white wires connected with wire nuts running to your existing thermostat will typically mean you have a high voltage system. If your system is high voltage, we will help you find another compatible thermostat. To identify your home heating and cooling system type, click here. If your system is high voltage, we will help you find another compatible thermostat.
In order to ensure your home will be compatible with the Lyric thermostat, your router needs to be Wi-Fi Alliance Certified.
For more information regarding Wi-Fi Alliance Certification:

If you are installing and configuring your Lyric for the first time, your app will walk through a step-by-step guide as the final chapter of installation. This occurs after you've powered on your Lyric thermostat, configured the HVAC settings and connected your thermostat to your home's Wi-Fi network.

First, you'll want to be as close as possible to the thermostat. The geofence will be drawn around the current location of your smartphone. Lyric will temporarily turn on your phone's GPS to determine the precise location of your thermostat.

NOTE, the GPS receiver in your phone is exclusively used during this configuration step. The geofencing feature does not require a GPS signal and won't have a noticeable impact on your battery life.
NOTE: if your thermostat is installed in the basement or interior of your home, you may want to step toward a window to assure your phone is able to determine its location.

You'll see a map of your neighborhood, with a blue dot at the center representing your current location. The blue circle represents the current size of your geofence. When you leave the circle, The Shortcut with the default name of "I'm Leaving Home" will change your thermostat's setpoint to your preferred "Away" temperature. When you cross from the outside to the inside of the geofence boundary, the Shortcut with the default name of "When I Arrive" will change your thermostat's setpoint to your preferred "Home" temperature.

To set your geofence size, drag the black dot on the blue circle (your geofence boundary) in or out until it's at your preferred distance. You can think of the dotted black line between your home and your geofence as the balance between comfort (closest to the black dot) and savings (closest to the blue dot). You can always come back and adjust the size of your geofence at any time.

When your geofence is where you'd like it, tap Save.

For more information, please watch this instructional video:

If you have thick wires connected with wire nuts running to your existing thermostat, you most likely have a high voltage system. Unfortunately, the Lyric thermostat will not work with these high voltage systems. If you have a high voltage system, your wires will likely be thick black, red or white wires, and your existing thermostat will often be installed on a junction box. If your system is high voltage, we will help you find another compatible thermostat.

If we weren't able to answer your question please visit Help & Support


Download PDF
Lyric Thermostat (Second Generation) Installation Manual
Model: RCH9310WF
Download PDF
Setup Guide for Lyric Round second generation and iCloud Settings
Model: RCH9310WF
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Guide Rapide pour Lyric Round deuxième generation et des réglages d’iCloud
Model: RCH9310WF
Download PDF
iCloud Settings Error
Model: RCH9310WF
Download PDF
Erreur de réglages d’iCloud
Model: RCH9310WF
Download PDF
Lyric Thermostat Warranty Policy
Model: RCH9310WF
Download PDF
Lyric Thermostat Warranty Policy
Model: RCH9310WF
Download PDF
Lyric Thermostat Getting Started Guide
Model: RCH9310WF


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