Honeywell Lyric T5 Quick Install Manual page 7

4 Make sure there are no 120/240V
wires.
Do you have thick black wires with
wire nuts?
Is your thermostat 120V or higher?
If you answered yes to either of these
questions, you have a line voltage
system and the Lyric thermostat will
not work.
If you are unsure visit:
yourhome.honeywell.com/support
5 Take a picture of how your wiring
looks right now.
Be sure to include the letters next
to the terminals where the wires
are inserted. This will be a helpful
reference when wiring your Lyric
thermostat.
6 Remove any jumpers
A jumper connects one terminal to
another terminal. It may look like a
small staple or even a colored wire and
must be removed before continuing.
The Lyric thermostat does not need
jumpers.
33-00151EF_A.indd 7
Wire nut
Thick black wire
Y R RC
Example of
a jumper
7
Terminals
6/24/2016 4:20:32 PM