Honeywell RTH8580WF - Page 13

11 69-2715ES—01
C
C
MCR33823
If you have an older thermostat with a
sealed mercury tube, turn to page 2
for proper disposal instructions.
Terminal
designation
Installing your thermostat
2 Remove old thermostat.
Remove the old
thermostat while leaving
the wallplate and wiring
in place.
Take a picture of the
wires on your old
thermostat for later
reference.