Honeywell Home RTH9590 Quick Start Manual

72
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 You will need your
at honeywellhome.com camera to take a
picture of your old wire
connections.
1
Install your thermostat
1.1 Switch OFF power to your
heating/cooling system
Important!
1.1a 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
honeywellhome.com/support
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.
Tip: If no tag matches a terminal
designation, write the appropriate
letter on a blank sticky tag.
Tip: Wrap the wires around a pencil
to prevent them from falling back into
the wall.

1.4 Remove old wallplate

Remove the old wallplate from
the wall after all wires are
labeled and disconnected.
This is a legacy product document
supported by Resideo. It is no
longer manufactured
Quick Start Guide
Smart Color Touchscreen
Programmable
Thermostat
RTH9590 With Voice Control
M37768
You will also need:
• Small screw driver
• Pen
• Thermostat ID card
• Your home Wi-Fi
network password
or
Circuit
breaker cooling system
box power 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
designation
If you have an older thermostat with a
sealed mercury tube, see warning page
for proper disposal instructions.
Sticky tag
Blank tags
C
Terminal
designation
1.5 Mount new 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:
your existing wall anchors. Hold
the wallplate up to the existing
anchors to check for alignment.

1.6 Connect wires

Important!
is the power source. Without a C wire,
your thermostat will not power up.
View the Alternate Wiring videos at
honeywellhome.com/wifi-thermostat
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 snaps
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:
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.
Heating/
Note:
M31535
is used only for Heat Pump systems.
Note:
had separate wires on Aux and E,
connect the Aux and E wires and one
end of a new piece of wire using a wire
nut (not included). Then slide the other
end of the new 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.
M33823A
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.
www.resideo.com
MCR31537
©2019 Resideo Technologies, Inc. This product is manufactured by Resideo Technologies, Inc., Golden Valley, MN, 1-800-633-3991
The Honeywell Home trademark is used under license from Honeywell International Inc. All rights reserved.
Apple, iPhone, iPad, iPod touch and iTunes are trademarks of Apple Inc. All other trademarks are the property of their respective owners.
You may be able to use
C wire is required and
Refer to the wiring picture
The L terminal on the lower right
If the old Heat Pump thermostat
Wallplate
Thermostat
Resideo Inc., 1985 Douglas Drive North,
Golden Valley, MN 55422
69-2791—09 M.S. Rev. 03-19 | Printed in United States
Wallplate
LEVEL
HERE
W-
C
O/B
Y
K
G
Rc
W2-
R
Aux/E
Y2
L
MCR34499
Note: The wiring for your
application might be different
than the wiring shown below.
Terminal release
EXAMPLE WIRING
Yours may look different
MCR34540
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
M34498A
or
Circuit Heating/
M31535
breaker cooling system
box power switch
Turn over
69-2791-09