Professional Install Guide
System Types
Compatible with 24-volt systems such as
forced air, hydronic, heat pump, oil, gas
and electric.
Does not work with electric baseboard
heat (120/240V).
Must be installed by a trained, experienced technician
Read these instructions carefully. Failure to follow these instructions can
damage the product or cause a hazardous condition.
Mercury Notice:
If this product is replacing a control that
contains mercury in a sealed tube, do
not place the old control in the trash.
Contact the Thermostat Recycling
Corporation at 1-800-238-8192 or
thermostat-recycle.org for information
on how and where to properly and
safely dispose an old thermostat.
Disconnect power before installation.
Can cause electrical shock or
equipment damage.
Lyric Round™ Wi-Fi Thermostat
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