Honeywell Lyric Round Getting Started page 8

Compatibility
Does not work with electric baseboard heat (120-240V)
Compatible with most other heating, cooling and heat pump systems
Optional: 24 VAC power ("C" wire)
Lyric's implementation of Apple HomeKit requires 24 VAC power ("C" wire)
For help, contact:
WEB lyric.honeywell.com
EMAIL MyLyric@honeywell.com
PHONE 1-800-633-3991
SOCIAL Twitter: @Honeywell_Home, Facebook: Honeywell Home
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