Honeywell Home Smart RTH6580WF1003 Series User Manual page 7

Installing your thermostat
2 Remove old thermostat faceplate
and leave wires connected.
2a Take a picture of the wire
connections for later
reference.
3 Label wires.
Do not label by wire color.
the supplied sticky tags to label
each wire as you disconnect it.
Label wires according to the old
thermostat terminal designations,
not by wire color.
Note: If no tag matches a wire
terminal label, write the terminal
label on a blank tag.
If you have an older thermostat with
a sealed mercury tube, turn to page
ii for proper disposal instructions.
Use
5
C
Terminal designation
C
MCR33823
Sticky tags
Blank sticky
tags
Terminal
designation
MCR31537
69-2715EF—07