Honeywell RTH9580 Wi-Fi User manual

Quick Start Guide
Wi-Fi Color Touchscreen
Programmable Thermostat
RTH9580 Wi-Fi

2
Install your thermostat.
Connect your home Wi-Fi network.
Register online for remote access.
1
2
3
Welcome
Getting set up and ready is simple.
Before you begin
View the installation video at
wifithermostat.com/support
You will also need:
• Smallscrewdriver
• Pen
• ThermostatIDcard
• YourhomeWi-Fi
network password
You will need your camera
to take a picture of your old
wire connections.

3
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.
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.
Installyourthermostat
1
Circuit
breaker
box
Heating/cooling
system power
switch
or
M31535

4
C
M33823A
Terminal
designation
If you have an older thermostat with a
sealed mercury tube, see warning page
for proper disposal instructions.
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.
Note: You will need a
picture of your wire
connections to wire the
new thermostat.

5
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.
Blank tags
Stickytag
Terminal
designation
C
C
MCR31537

6
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.
LEVEL
HERE
R
Y
C
W
G
MCR34499
C
K
Rc
R
W-
O/B
Y
G
W2-
Aux/E
Y2
L
Wallplate

7
MCR34540
C
K
Rc
R
W-
O/B
Y
G
W2-
Aux/E
Y2
L
W
Y
G
R
C
1.6 Connect wires
Important! C wire is required and
is the power source. Without a C wire,
your thermostat will not power up.
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.
Note: The wiring for your application
might be different than the wiring
shown below.
Labels don’t match or have
heat pump system?
SeeUser Guide.
Terminal release
Remove jumper loop ONLY if
you have both R and Rc wires.
EXAMPLE WIRING
Yours may look different

8
Labels don’t match or have
heat pump system?
SeeUser Guide.
 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 Lterminal 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.
Important!
Check the box for each wire
you connect. You will need
thisinformationinStep1.9.
C
K
Rc
R
W-O/B
Y
G
W2-
Aux/E
Y2
L

9
1.7 Attach thermostat
to wallplate
Align the thermostat with
wallplate and snap into
place.
Thermostat
Wallplate
LEVEL
HERE
M34498
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.
Circuit
breaker
box
Heating/cooling
system power
switch
or
M31535

10
Next
1.9 Select setup
Before connecting to your Wi-Fi
network, you need to set initial
thermostat options to define your
heating/cooling system:
 •Language
 •Homeorbusiness
Follow prompts on the screen to
select appropriate options.
1.9a Touch the language you want
the thermostat to display, then
touch Next.
 1.9b SelectHomeorBusiness 
application, then touch Next.
1.9c Touch Next or name the
thermostat location—touch
 THERMOSTATandfollowthe 
rest of the instructions.
Next
Next