How do I adjust the sound on my Lyric?
To change the sound level on your Lyric thermostat, go to the Lyric app home screen for the location including the thermostat you'd like to adjust. On that home screen, tap the icon for the appropriate thermostat. Then tap the gear icon in the upper right-hand corner to access Preferences. Tap Hardware and then Sound. You can adjust the sound to be Low, Normal or Off.