Honeywell RTH9585 Wi-Fi Quick Start Manual

Welcome
Getting set up and ready is simple.
1
Install your thermostat.
2
Connect your home Wi-Fi network.
3
Register online for remote access.
Before you begin
View the installation video at You will need your camera
wifithermostat.com/support to take a picture of your old
wire connections.
1
Install your thermostat
1.1 Switch OFF power to your
heating/cooling system
1.1a Important! To protect your
equipment, switch OFF the
power to your heating/
cooling system at the
breaker box or the system
switch.
1.1b Confirm power is OFF.
Try to turn on heating/
cooling equipment by
changing temperature
on your old thermostat.
Your power is OFF if your
system does not turn ON.

1.2 Remove old thermostat

faceplate and leave wires
connected
1.2a Take a picture of the wire
connections for later
reference.
1.2b If no wire is connected to a
terminal labeled C or no C
terminal exists on the old
thermostat, view the
Alternate Wiring videos at
wifithermostat.com/videos
Important! C wire is required
and is the power source for your
thermostat. Without a C wire, your
thermostat will not power up.
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
color.
Note: If no tag matches a terminal
designation, write the appropriate
letter on a blank sticky tag.
Note: Wrap the wires around a pencil
to prevent them from falling back into
the wall.
1.4 Remove wallplate
Remove the old wallplate from
the wall after all wires are
labeled and disconnected.

Quick Start Guide

Wi-Fi Color Touchscreen
Programmable Thermostat
RTH9585 Wi-Fi
You will also need:
• Small screw driver
• Pen
• Thermostat ID card
• Your home Wi-Fi
network password
or
Circuit Heating/cooling
M31535
breaker system power
box switch
This thermostat works with common 24
volt systems such as forced air, hydronic,
heat pump, oil, gas, and electric. It will not
work with millivolt systems, such as a gas
fireplace, or with 120/240 volt systems such
as baseboard electric heat.
Note: You will need a
picture of your wire
connections to wire the
new thermostat.
C
Terminal
M33823A
designation
If you have an older thermostat with a
sealed mercury tube, see warning page
for proper disposal instructions.
Sticky tag
Blank tags
C
MCR31537
Terminal
designation
1.5 Mount wallplate for Wi-Fi
thermostat
Mount your new wallplate using
screws and anchors included
with the thermostat.
If necessary:
• Drill 3/16-in holes for drywall
• Drill 7/32-in 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.

1.6 Connect wires

Important! C wire is required and
is the power source. Without a C wire,
your thermostat will not power up.
See the C Wire Addendum
document for more information.
View the Alternate Wiring videos
at wifithermostat.com/videos
1.6a Starting with the C Wire, match
the sticky tag on the wire to the
terminal labels.
1.6b Straighten wire and gently slide
into terminal hole until it clicks
into place. (If you need to
remove a wire, use a pen tip to
press the terminal release and
then pull the wire out.)
Note: Refer to the wiring picture
you took in Step 1.2.
Tip: To make it easier to slide the
wire into place, use a pen tip to
hold down the terminal release.
1.6c In the image on the right, check
the box next to each connection.
You will use this checklist in
Step 1.9.
1.6d Verify wire is firmly secured by
gently pulling on wire.
1.6e Repeat steps a–d for all other
wires.
1.6f Push any excess wire back into
the wall opening after all wires
are installed.
Note: The L terminal on the lower
right is used only for Heat Pump
systems.
Note: If the old thermostat for Heat
Pump System has separate wires
on Aux and E, use a wire nut to
attach both wires to a separate
wire. Slide this third wire into the
W2-Aux/E terminal.
1.7 Attach thermostat
to wallplate
Align the thermostat with
wallplate and snap into
place.
1.8 Switch heating/cooling
system ON
Important!
1.8a Verify that the C wire is
connected at the thermostat
and at the heating/cooling
system.
1.8b Make sure the heating/
cooling system door is
firmly secured.
1.8c Switch power back ON for
your heating/cooling system
at the breaker box or its
power switch.
Home and Building Technologies
In the U.S.:
Honeywell
1985 Douglas Drive North
Golden Valley, MN 55422-3992
wifithermostat.com
® U.S. Registered Trademark.
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All other trademarks are the property of their respective owners.
© 2017 Honeywell International Inc.
33-00268—01 M.S. 03-17
Printed in U.S.A.
Wallplate
LEVEL
HERE
W-
C
O/B
Y
K
Rc G
W2-
R
Aux/E
Y2
L
Note: The wiring for your application
might be different than the wiring
shown below.
Terminal release
EXAMPLE WIRING
Yours may look different
Remove jumper loop ONLY if
you have both R and Rc wires.
Labels don't match or have
heat pump system?
See User Guide.
Important!
Check the box for each wire
you connect. You will need
this information in Step 1.9.
Labels don't match or have
heat pump system?
See User Guide.
LEVEL
HERE
Wallplate
Thermostat
or
Circuit Heating/cooling
breaker system power
box switch
Turn over
33-00268-01
MCR34499
MCR34540
M34498
M31535