This user guide is designed to help you get acquainted with your new Lyric T5 Wi-Fi thermostat. Check out the table of contents on page 2 to browse by topic.
Need help? Get in touch.
Web: lyric.honeywell.com
Email: MyLyric@honeywell.com
Phone: 1-800-633-3991
Social:
This is a legacy product document supported by Resideo. It is no longer manufactured
Tip: The Lyric app can be used to manage multiple thermostats and multiple users in a household.
Idle mode
The thermostat will enter idle mode 45 seconds after the last button touch. The screen may dim to save power depending on the brightness setting. See page 21 to learn how to adjust the screen’s brightness.
To see all the products connected by the Honeywell Lyric app, visit yourhome.honeywell.com.
The Lyric app is regularly enhanced and may change.
To adjust the desired temperature up or down, touch
If you’re using location-based temperature control or a time-based schedule, adjusting the temperature will override the current set point until the next schedule period or geofence event, unless you want to use one of the schedule overrides below.
Hold Until (temporary hold): Overrides the current temperature set point for a maximum of 12 hours. You might use this feature to hold a temperature until a specific time.
Permanent hold: Overrides the current temperature set point permanently until you manually change it or reactivate a schedule.
Vacation hold: Overrides the current temperature set point for a longer period of time. You might use this feature when you know you’ll be gone for awhile. (Note: Vacation hold can only be activated using the Lyric app.)
Setting temporary hold (for use with time-based schedules only)
After the hold period ends, the thermostat will automatically return to the program schedule. If you want to cancel the hold, touch Hold Until and then touch Run Schedule.
Setting permanent hold
Setting vacation hold (must be set using the Lyric app)
Auto mode (when the thermostat automatically chooses heating or cooling to achieve your desired temperature) is disabled by default. To enable it, touch Menu, touch the
To choose your preferred temperatures for both heating and cooling in Auto mode, follow the steps below.
Current system mode (Heat, Cool, Off, Em Heat) is displayed to the left of current indoor temperature on the thermostat home screen. The mode that’s currently running (Heat On, Cool On, Em Heat On) is displayed in the upper-left corner of the thermostat home screen. To cycle through the available modes, touch Mode on the thermostat home screen and select the appropriate mode for your desired temperature.
Notes:
If the compressor is restarted too soon after a shutdown, system damage can occur. The built-in compressor protection feature forces the compressor to wait a few minutes before restarting, helping to prevent damage to the heating or cooling system.
During the brief wait period, the thermostat will flash Cool On (or Heat On if you have a heat pump) until the wait period is over, at which point the compressor will turn back on.
Note: The flashing Cool On or Heat On message is also used for startup delay protection if AC power loss occurs.
Touch Fan on the thermostat home screen to cycle through available fan modes until the desired mode is displayed. Your changes will save automatically.
Available fan modes:
To configure and control your Lyric T5 Wi-Fi thermostat remotely, the thermostat needs to be connected to the Lyric app through your home’s Wi-Fi network. Follow the simple steps below to get connected.
The thermostat’s Wi-Fi connection status is located in the upper-right corner of the screen. To troubleshoot Wi-Fi connectivity issues, see the FAQs on page 30.
If you need to disconnect the thermostat from one Wi-Fi network and reconnect it to another (because you’re replacing your Wi-Fi router, for example), follow the steps below.
Touch Menu on the thermostat home screen and then use the or arrows to page through the following options.
The Lyric T5 Wi-Fi thermostat offers flexible scheduling options that include:
On the thermostat home screen, you’ll be able to see what kind of schedule is currently running, as well as which schedule period you’re currently in.
Schedule status
Indicates if the thermostat is using location- based temperature control
Shows current schedule period (Wake, Away, Home or Sleep).
Location-based temperature control and smart scheduling
Location-based temperature control uses geofence technology and your smartphone’s GPS location to automatically adjust your thermostat as you come and go. When you leave the geofence boundary, the thermostat will change to your preferred Away temperature, and when you enter the geofence boundary, the thermostat will change to your preferred Home temperature.
Setting location-based temperature control and smart scheduling in the Lyric app
These two options can only be activated using the Lyric app. To enable location-based temperature control and/or set a smart schedule, follow the steps below.
When location-based temperature control is active, you’ll see a
If you manually change the temperature when location-based temperature control is active, the new temperature will remain in effect until you cross the geofence.
To adjust the geofence boundary, follow the steps below.
Editing location-based temperature control and smart scheduling on the thermostat
To edit your preferred Home, Away and Sleep temperatures or your Wake and Sleep times while location-based temperature control is active, follow the steps below. You can also make edits in the Lyric app.
With time-based scheduling, you can program your thermostat to follow a predictable schedule based on time of day or day of the week. Here are the programming options:
There are also four adjustable periods per day: Wake, Away, Home and Sleep.
Your Lyric T5 Pro Wi-Fi thermostat comes with the following default Weekday & Weekend schedule that can help reduce your heating and cooling expenses. To change schedule types (from Weekday & Weekend to a different option) you must use the Lyric app. See page 13 for instructions.
| Period | Start Time | Heat (Mon-Fri) | Cool (Mon-Fri) | Heat (Sat-Sun) | Cool (Sat-Sun) |
| Wake | 6:00 am | 70 ° | 78 ° | 70 ° | 78 ° |
| Away | 8:00 am | 62 ° | 85 ° | 62 ° | 85 ° |
| Return | 6:00 Pm | 70 ° | 78 ° | 70 ° | 78 ° |
| Sleep | 10:00 Pm | 62 ° | 82 ° | 62 ° | 82 ° |
Setting a time-based schedule in the Lyric app
To select a schedule type and set a time-based schedule in the Lyric app, follow the steps below.
Setting a time-based schedule on the thermostat
To edit a time-based schedule on the thermostat, follow the steps below.
Note: To temporarily cancel a schedule period (such as Saturday-Sunday Away, for example, because you’ll be home), go to the SCHEDULE option and touch the or arrows to select a period. Touch Select on the period you want to cancel, then touch Cancel Period. To reactive the period you cancelled, touch Cancel Period again to select period start time and preferred temperature.
Changing schedule type on the Lyric app
To change from a Weekday & Weekend schedule to an Everyday or Individual Days schedule (for example), follow the steps below. You must use the Lyric app to change schedule types.
Resetting the thermostat to the default schedule
To reset your thermostat to the default Monday- Friday, Saturday-Sunday schedule, follow the steps below.
Turning off scheduling
To turn off scheduling and control the temperature manually, follow the steps below.
To prevent unauthorized access to the thermostat, or to limit changes to the system settings, there are two screen lock settings you can apply.
Applying a screen lock setting
A partially or fully locked screen will be indicated by a lock symbol at the bottom of the thermostat screen.
Unlocking the screen
When you enter the correct PIN, you’ll return to the thermostat home screen. To re-lock the screen after you’re done making changes, follow the steps above to apply a lock setting.
To access the Wi-Fi settings option, follow the steps below.
Choose the SETUP WIFI option to get your thermostat connected to your home’s Wi-Fi network (see instructions on page 10 for more). For WAC SETTING and WIFI ON/OFF information, see below.
The Wireless Accessory Configuration (WAC) setting is an iOS-specific setting that enables Wi-Fi credentials to be securely transferred from an iOS device to the thermostat. The WAC setting is enabled by default to simplify the Wi-Fi connection process. If you choose to disable it (not recommended), you’ll have to use a different process to get your thermostat connected to Wi-Fi.
If you want to disconnect your thermostat from Wi-Fi, follow the steps below.
When the thermostat is in idle mode, you can adjust how bright you’d like the screen. You can choose a brightness level from 01 (display backlight is dimmest, which is the default) up to 05 (maximum brightness). To adjust backlight brightness, follow the steps below.
Over time, your Lyric T5 Wi-Fi thermostat will learn how long it takes your system to reach the desired temperature. It can then turn on your heating or cooling equipment at the right time to make sure your home is comfortable by the time you expect. This feature is enabled by default. To disable it, follow the steps below.
When Smart Response is active, you’ll see the recovery symbol in the upper-right corner of the thermostat screen
When the thermostat is connected to Wi-Fi and registered to your Lyric app account, it will set the time and date and adjust for daylight saving time automatically. (The CLOCK and DATE sub-menus won’t be available.) If your thermostat is not connected, you’ll need to set the time and date manually using the steps below.
Setting the time
Setting the date
With the clean screen option, you can lock the thermostat screen so you don’t accidentally change your settings when you clean. Follow the steps below to activate clean screen mode.
The screen will deactivate for 30 seconds. A countdown timer will display the amount of time until screen reactivation.
Tip: To clean the thermostat screen, spray water or household cleaner onto a cloth, then use the cloth to clean the screen. Avoid abrasive cleaners and do NOT spray liquid directly on the thermostat.
Choosing Fahrenheit or Celsius
To select a temperature scale, follow the steps below.
Enabling/disabling auto changeover
To enable auto changeover (when the thermostat automatically chooses heating or cooling to achieve your desired temperature), follow the steps below.
To turn Auto mode on, touch Mode on the thermostat home screen until you see the word Auto appear. You’ll then see Auto Chg. On in the upper-right corner, and the active mode (Heat or Cool) will display under Mode. To set your temperature preferences in Auto mode.
To clear your settings or device credentials or to reset thermostat to original factory default setting, use one of the reset options below.
You can check the status of your heating or cooling equipment and fan by following the steps below. Please note that system data may vary depending on thermostat model and how the thermostat was installed.
After 3 seconds, system status information will scroll on the screen.
Viewing thermostat information
To see your thermostat’s technical information, follow the steps below.
The Lyric T5 Wi-Fi thermostat comes with a set of Smart Alerts that help keep your heating and cooling system running correctly and efficiently. You’ll get reminders when it’s time to change the filter, for example, and notifications in the event of extreme indoor temperatures.
Non-critical alerts and maintenance reminders can be snoozed for up to 7 days and/or dismissed. Some critical alerts cannot be snoozed or dismissed as your heating or cooling system may require service.
To turn off/on alerts and notifications in the Lyric app, log into the app and tap the menu icon
When there’s an active alert or maintenance reminder, you’ll see the alert symbol on the thermostat home screen. To see alert information, follow the steps below.
To see what each 3-digit alert code means and the action you should take, refer to the chart below.
| Number | Alert/Reminder | Recommended action |
| 164 | Heat Pump Needs Service | Contact your heating or cooling professional to diagnose and service the heat pump. |
| 168 | Wi-Fi Radio Error | The wireless module isn’t operating, and wireless features aren’t available. Contact Lyric Technical Support at 1-800-633-3991. |
| 170 | Internal Memory Error | The thermostat’s memory has encountered an error. Contact Lyric Technical Support at 1-800-633-3991. |
| 171 | Set the Date and Time | Please set the time and date on the thermostat to ensure features like scheduling can operate. See page 22 for instructions. |
| 173 | Thermostat Temperature Sensor Error | The temperature sensor on the thermostat has encountered an error. Contact Lyric Technical Support at 1-800-633-3991. |
| 175 | AC Power Resumed | AC power to the thermostat has been restored after power loss. You don’t need to take any action. |
| 181 | Replace Air Filter (1) | Replace the air filter or contact your heating or cooling professional. Reset the air filter timer by touching Dismiss on the thermostat screen after replacement. |
| 182 | Replace Air Filter (2) | Replace the air filter or contact your heating or cooling professional. Reset the timer by touching Dismiss on the thermostat screen after replacement. |
| Number | Alert/Reminder | Recommended action |
| 184 | Replace Humidifier Pad | Replace the humidifier pad or contact your heating or cooling professional. Reset the timer by touching Dismiss on the thermostat screen after replacement. |
| 185 | Replace Dehumidifier Filter | Replace the dehumidifier filter or contact your heating or cooling professional. Reset the timer by touching Dismiss on the thermostat screen after replacement. |
| 187 | Clean or Replace Ventilator Filter | Clean or replace the ventilator filter or contact your heating or cooling professional. Reset the timer by touching Dismiss on the thermostat screen after you’re done. |
| 188 | Replace UV Bulb (1) | Replace the UV bulb or contact your heating or cooling professional. Reset the timer by touching Dismiss on the thermostat screen after you’re done. |
| 189 | Replace UV Bulb (2) | Replace the UV bulb or contact your heating or cooling professional. Reset the timer by touching Dismiss on the thermostat screen after you’re done. |
| 210 | Register Online For Outdoor Temperature | You need to register online to receive outdoor temperature information from the Internet. Based on the installation settings, this information is required for correct operation of your system. Please download the Lyric app and register your thermostat. |
| 388 | Register Online for Remote Access and Outdoor Temperature | You need to register online for remote thermostat access and outdoor temperature information. Please download the Lyric app and register your thermostat. |
| 399 | No Internet | The internet connection has been lost. Please check your network settings. |
| 400 | No Wi-Fi Signal | The Wi-Fi signal has been lost. Please wait for the thermostat to reconnect or select a new Wi-Fi network. See page 10 for Wi-Fi reconnection instructions. |
| 508 | Wi-Fi Not Configured | Please download the Lyric app and follow the steps to connect your thermostat to Wi-Fi. See page 10 for Wi-Fi connection instructions. |
REQUIRED: 24 VAC POWER (“C” WIRE)
CAUTION: ELECTRICAL HAZARD
Can cause electrical shock or equipment damage. Disconnect power before beginning installation.
CAUTION: EQUIPMENT DAMAGE HAZARD
Compressor protection is bypassed during testing. To prevent equipment damage, avoid cycling the compressor quickly.
CAUTION: MERCURY NOTICE
If the Lyric T5 Wi-Fi thermostat is replacing a thermostat that contains mercury in a sealed tube, do not place the old thermostat in the trash. Please contact your local waste management authority for proper recycling or disposal instructions.
Compatibility
Wi-Fi Communication
2.4GHz range, 802.11 b/g/n home wireless router
Temperature Ranges
Temperature Sensor Accuracy
± 1.5 °F at 70 °F (0.85 °C at 21.0 °C)
Electrical Ratings
| Terminal | Voltage (50/60Hz) | Running Current |
| W Heating | 20-30 Vac | 0.02-1.0 A |
| (Powerpile) | 750 mV DC | 100 mA DC |
| W2 (Aux) Heating | 20-30 Vac | 0.02-1.0 A |
| E Emergency Heat | 20-30 Vac | 0.02-0.5 A |
| Y Compressor Stage 1 | 20-30 Vac | 0.02-1.0 A |
| Y2 Compressor Stage 2 | 20-30 Vac | 0.02-1.0 A |
| G Fan | 20-30 Vac | 0.02-0.5 A |
| O/B Changeover | 20-30 Vac | 0.02-0.5 A |
| L/A Input | 20-30 Vac | 0.02-0.5 A |
| U Universal | 20-30 Vac | 0.02-0.5 A |
Power Consumption
If the thermostat screen is blank:
If the screen is difficult to read: Increase screen brightness (see page 21 for instructions).
If the heating or cooling system isn’t responding:
If the temperature setting doesn’t change:
Make sure the heating and cooling set points are within the operating range.
If Cool On or Heat On is flashing:
The compressor protection feature is engaged. Wait a few minutes for the system to safely restart to avoid damaging the compressor. See page 9 for more information.
Q: Will the thermostat still work if the Wi-Fi connection is lost?
A: Yes, you can still manually adjust the temperature at the thermostat. However, some features such as location-based temperature control (geofence technology) can only be managed through the Lyric app and will not function without a Wi-Fi connection. The thermostat will automatically reconnect to Wi-Fi once the network is restored.
Q: Why is the thermostat not finding my Wi-Fi network?
A: The Lyric T5 Wi-Fi thermostat operates in the 2.4GHz range. Smartphones operate in both the 2.4 and 5.0 GHz ranges, so your smartphone may “see” your Wi-Fi network when your thermostat does not. Most Wi-Fi routers will broadcast two networks: 2.4 GHz and 5.0 GHz. If you have an option, make sure your smartphone is connected to the 2.4 GHz network.
Q: Is there a way to extend the strength of my Wi-Fi signal?
A: The range (distance) of your Wi-Fi signal is determined by your router. Try moving your router closer to the location of the thermostat, or use a router with a stronger signal range.
Q: There’s an alert that says “Wi-Fi Signal Lost” – what should I do?
A: Wait 5 minutes for the thermostat to reconnect or select an alternate network (if you have one) in the Lyric app configuration menu. If the thermostat isn’t able to reconnect, you’ll need to troubleshoot the router to determine the cause.
Q: Why is there an offline symbol (Wi-Fi icon with a strikethrough) in the upper-right corner of the thermostat screen?
A: The thermostat has lost its connection to the Wi-Fi network. First, make sure your Wi-Fi router is plugged in and broadcasting a signal. If it is, try resetting the router (consult the router’s manual for instructions). When the Wi-Fi network has been restored, the thermostat will automatically reconnect.
Q: Why haven’t I received an account activation email?
A: If you haven’t received an activation email after 5 minutes, check your Spam folder and look for an email from Connected-Home@alarmnet.com. If you don’t see it, tap Resend to have the activation email resent. If you still don’t receive it, please contact the Lyric Technical Support team at 1-800-633-3991.
Q: Can I set up my thermostat with multiple users?
A: Yes. To add users, log into the Lyric app and tap the menu icon in the upper-left corner. Select Manage Users, tap Add User and type in the email addresses of the people you’d like to invite. If they already have a Lyric account set up, the thermostat and its location will automatically be added to their account. If they don’t have an account, they’ll receive an email prompting them to download the Lyric app and create a new account.
Q: Can I set up location-based temperature control with multiple users?
A: Yes. Location-based temperature control (geofence technology) will activate based on the last person who leaves and the first person to return. Each user will need to create their own Lyric account with a login ID and password. Two users should not share the same account. Each user will then need to enable location-based temperature control. See page 13 for instructions.
Q: Why doesn’t a change I made in the app show up on the thermostat?
A: There may be a short delay when you make temperature and settings changes in the Lyric app. Wait a few minutes, and if you still don’t see your changes on the thermostat, make sure the thermostat is still connected to Wi-Fi and restart your Lyric app.
Q: What should I do when the alert symbol appears on the thermostat home screen?
A: When you see the alert symbol on the thermostat screen, touch Menu and the ALERTS submenu will appear. Touch Select to view alert information. Or, you can view alert information in the Lyric app. See page 26 for a list of all alert codes, what they mean and the action you should take.
Q: How can I be sure my thermostat is running the most up-to-date firmware?
A: When your thermostat is connected to Wi-Fi, it will automatically receive over-the-air firmware updates from Honeywell. These firmware updates contain things such as new features as well as security upgrades. Keep your thermostat connected to Wi-Fi to ensure it receives these updates.
Q: How can I prevent a cybercriminal from making unauthorized changes to my thermostat?
A: If a cybercriminal gains access to your Wi-Fi router, they can tamper with a wide range of online activities, including the settings on your connected devices. Make sure you change the default password on your Wi-Fi router, and when you select a new password, make sure it uses multiple upper- and lower-case letters and special characters.
Q: How can I safely remove my thermostat?
A: Thermostat removal should ideally be handled by a trained professional as improper removal can cause electrical shock and equipment damage. If you wish to remove the thermostat yourself, be sure to turn off the circuit breaker that controls your heating or cooling equipment before you disconnect any wires. If you don’t know which breaker controls your equipment, you can shut off the main breaker.
Q: How can I uninstall my Lyric T5 Wi-Fi thermostat?
A: If you want to replace your Lyric T5 Wi-Fi thermostat, or if you’re moving out of your home and leaving the thermostat behind, you’ll first want to clear out the personal settings that are stored on the thermostat. (Even when disconnected from power, the thermostat will keep your settings and home router information in memory.) We recommend resetting the thermostat’s schedule, Wi-Fi and HomeKit settings (if previously connected). See page 24 for more information on reset options.
§ 15.19 (a)(3)
This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions:
RSS-GEN
This device complies with Industry Canada’s license-exempt RSSs. Operation is subject to the following two conditions:
FCC Warning (Part 15.21) (USA only)
Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.
Honeywell warrants this product, to be free from defects in the workmanship or materials, under normal use and service, for a period of two (2) years from the date of purchase by the consumer. If at any time during the warranty period the product is determined to be defective or malfunctions, Honeywell shall repair or replace it (at Honeywell’s option).
If the product is defective,
This warranty does not cover removal or reinstallation costs. This warranty shall not apply if it is shown by Honeywell that the defect or malfunction was caused by damage which occurred while the product was in the possession of a consumer. Honeywell’s sole responsibility shall be to repair or replace the product within the terms stated above. HONEYWELL SHALL NOT BE LIABLE FOR ANY LOSS
OR DAMAGE OF ANY KIND, INCLUDING ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING, DIRECTLY OR INDIRECTLY, FROM ANY BREACH OF ANY WARRANTY, EXPRESS OR IMPLIED, OR ANY OTHER FAILURE OF THIS PRODUCT. Some states do not allow the exclusion or limitation of incidental or consequential damages, so this limitation may not apply to you.
THIS WARRANTY IS THE ONLY EXPRESS WARRANTY HONEYWELL MAKES ON THIS PRODUCT. THE DURATION OF ANY IMPLIED WARRANTIES, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, IS HEREBY LIMITED TO THE TWO-YEAR DURATION OF THIS WARRANTY.
Some states do not allow limitations on how long an implied warranty lasts, so the above limitation may not apply to you. This warranty gives you specific legal rights, and you may have other rights which vary from state to state. If you have any questions concerning this warranty, please write Honeywell Customer Relations, 1985 Douglas Dr. N., Golden Valley, MN 55422 or call 1-800-468-1502.
Home and Building Technologies In the U.S.: Honeywell
1985 Douglas Drive North
Golden Valley, MN 55422
http://customer.honeywell.com
® U.S. Registered Trademark.
© 2016 Honeywell International Inc.
33-00231EFS-01 M.S. 12-16
Printed in the U.S.A.
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