Honeywell RTH9580 User Manual page 6

Installing your thermostat
3 Label the wires.
Use the supplied sticky tags
to label each wire as you
disconnect it. Label wires
according to the old thermostat
terminal designations, not by
wire colour.
Note: If no tag matches a
terminal designation, write the
appropriate letter on a blank
sticky tag.
4 Remove wallplate.
Remove the old wallplate from
the wall after all wires have been
labelled and disconnected.
Note:
Wrap the wires around
a pencil to prevent them from
falling back into the wall.
5 Mount wallplate for Wi-Fi
thermostat.
Mount your new wallplate
using screws and anchors
included with the thermostat.
If necessary:
Drill 4.5mm holes for drywall.
Drill 5.5mm holes for plaster.
Note:
You may be able to use
your existing wall anchors. Hold
the wallplate up to the existing
anchors to check for alignment.
69-2715EF—07
C
4
Sticky tag
Blank tags
Terminal
designation
MCR31537
LEVEL
HERE
W-
C
O/B
Y
K
G
Rc
W2-
R
Aux/E
Y2
L
Wallplate
MCR34499