1.3 Label wires
Do not label by wire color.
Use the supplied sticky tags to label
each wire as you disconnect it. Label
wires according to old thermostat
terminal designations, not by wire
If no tag matches a terminal
designation, write the appropriate
letter on a blank sticky tag.
1.4 Remove wallplate
Remove the old wallplate from
the wall after all wires are
labeled and disconnected.