Honeywell RTH8500WF User manual

Quick Start Guide
Wi-Fi Touchscreen
Programmable
Thermostat
RTH8500WF Wi-Fi Series

2
Install your thermostat.
Connect your home Wi-Fi network.
Register online for remote access.
Before you begin
1
2
3
Welcome
Getting set up and ready is simple.
View the installation video at
wifithermostat.com/support
Gather
• Smallscrewdriver
• ThermostatIDcard
• YourhomeWi-Fi
network password

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
or
M31535
Circuit
breaker
box
Heating/cooling
system power
switch

4
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
primary power source for your thermostat.
Without a C wire, your thermostat will not
power up.
C
C
MCR33823

5
C
C
MCR31537
Blank
sticky
tag
Terminal
designation
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.
1.4 Remove wallplate
Remove the old wallplate from
the wall after all wires are
labeled and disconnected.
Sticky
tag

6
M31538
Finger holds
Wallplate (back view)
Thermostat
1.5 Separate Wi-Fi thermostat
and its wallplate
On your new thermostat, grasp the
finger holds on the top and bottom of
the wallplate with one hand and the
thermostat (front) with the other
hand. Pull pieces apart.

7
Wallplate
1.6 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.
M31543
Y2
W2
K
RC
R
W
Y
G
C
RC
R
O/B
Y
G
C
HEAT PUMP
CONVENTIONAL
L
E/AUX
K
R
Y
C
W
G
MCR31539

8
Y2
W2
K
RC
R
W
Y
G
C
RC
R
O/B
Y
G
C
R
W
G
C
Y
HEAT PUMP
CONVENTIONAL
L
E/AUX
K
MCR31541A
1.7 Connect wires
1.7a StartingwiththeCWire,matchthe
sticky tag on the wire to the terminal
labels.
Important! C wire is required and is the
primary power source. Without a C wire,
your thermostat will not power up.
View the Alternate Wiring videos at
wifithermostat.com/videos
 1.7b Loosenscrew,insertwireoninside
edge of terminal, then tighten screw.
 1.7c Verifywireisfirmlysecuredbygently
pulling on wire.
 1.7d Repeatsteps1.7a–1.7cforallotherwires.
 1.7e Pushanyexcesswirebackintothewall
opening after all wires are installed.
Note:The wiring for your
application might be different
than the wiring from above.
Labels don’t match or have heat pump system?
See User Guide.
Remove metal jumper only if you
have both Rand RC wires
Insert wires here

9
1.8 Install battery
Insert the coin cell battery
(included), observing
the correct polarity.
Note: A correctly inserted battery will
extend about halfway out of the battery
slot on the thermostat, allowing for
easier removal.
This battery maintains time and date
during power outages. It does not
power the thermostat (C wire
required).
1.9 Attach thermostat
to wallplate
Align the thermostat onto
wallplate and snap into place.
M31542
Thermostat interior
Thermostat
Wallplate
M31543
Y2
W2
K
RC
R
W
Y
G
C
RC
R
O/B
Y
G
C
HEAT PUMP
CONVENTIONAL
L
AUX
/E
K

10
Circuit
breaker
box
Heating/cooling
system power
switch
1.10 Switch heating/cooling system ON
Important!
1.10a Verify that the C
wire is connected at the
thermostat and at the
heating/cooling system.
1.10b Make sure the heating/cooling
system door is firmly secured.
1.10c Switch power back ON for
your heating/cooling system
at the breaker box or its
power switch.
or
M31544

11
1.11 Set date and time
Touch sor tbuttons to change
displayed time and date.
Press and hold a button to
quickly change a setting.
Day
Time
Month
Ye ar, Month, Day(To p)
Se t Time
Ye ar, Month, Day(To p)
Se t Time
Year

12
1.12 Determine your heating/cooling system type
Important! Heating/cooling system type must be set so that your thermostat
operates properly and does not damage your system.
1.12a If you have a traditional system (natural gas forced air with A/C), your
thermostat is set up by default to control this system.
Go to Step 2
1.12b If your system is:
 • Multistageequipment
 • Anytypeofheatpump
 • Hydronic
 • Other
 YouMUSTchangethesystemtypebysettingsystemfunction0170.
See “Setting functions and options” in the User Guide.
Not sure of your heating/cooling system type?
Refer to FAQ on wifithermostat.com/support

13
MORE
Inside
MCR31580
1.13 Test your thermostat
 Congratulations!Yourthermostatisoperational
 1.13a TouchtheSYSTEM button to
change to heating or cooling
and begin operation.
Heating/cooling system not turning on?
Refer to User Guide or FAQ at
wifithermostat.com/support
 1.13b Forremoteaccesstoyour
thermostat, continue to Step 2 .

14
If you get stuck... At any point in
this process, restart the thermostat
by removing the thermostat from
the wallplate, wait for 5 seconds,
and snap it back into place.
Return to 2.1.
Need more help? Find additional
information in the User Guide.
Getting Help
2.1 Connect to your thermostat
2.1a Connect your wireless device to
your home network.
Any of these device types
will work:
  • Tablet(recommended)
  • Laptop(recommended)
  • Smartphone
View the Wi-Fi Enrollment video
at wifithermostat.com/videos
Connect to your Wi-Fi network
2

15
M31566
MORE
Inside
2.1b Make sure the thermostat message
center displays Wi-Fi SETUP.
2.1c On the wireless device (tablet,
laptop, smartphone), view the
list of available Wi-Fi networks.
2.1d Connect to the network called
NewThermostat_123456
(the number will vary).
Note: If you are asked to specify a home,
public, or office network, select
Home Network.
Message Center

16
2.2 Join your home network
2.2a Open your web browser to access
the Thermostat Wi-Fi Setup page.
The browser should automatically
direct you to the correct page; if it
   doesnot,gotohttp://192.168.1.1
2.2b Find the name of your home network
on this page and select it.
Note: Some routers have enhanced
features such as guest networks; use
your home network.
2.2c Complete the instructions for joining
your Wi-Fi network and click on the
Connectbutton.(Dependingonyour
network setup, you may see an
instruction such as Enter Password
for your home network.)
Note: If you did not correctly connect to
the thermostat, you may see your home
router page. If so, return to Step 2.1.
Thermostat Wi-Fi-Setup page

17
2.3 Make sure your thermostat is
connected
The message center on your thermostat
will now display CONNECTING… for up to
 30seconds.
2.3a Look at the thermostat display.
Verify that the message center
displays one of the following:
CONNECTION SUCCESSFUL
   JOINED:[WI-FI NETWORK NAME]
   YOUAREALMOSTDONE
REGISTER AT TOTAL CONNECT
If you see one of these messages,
continue to Step3 .
M31568
MORE
Inside
Note:If you see CONNECTION
FAILURE or Wi-Fi SETUP in
the message center, confirm
you correctly entered your home
network password in step 2.2c. If
correct, refer to the FAQ at
wifithermostat.com/support

18
To view and set your Wi-Fi thermostat remotely,
you must have a Total Connect Comfort
account. Follow the instructions below.
View the Wi-Fi Thermostat Registration
video at wifithermostat.com/videos
3.1 Open the Total Connect Comfort
web site
Go to www.mytotalconnectcomfort.com
Register online for remote access
3

19
3.2 Login or create an account
If you have an account,
click Login
 –or–
click Create An Account.
 3.2a Followtheinstructionsonthe 
screen.
 3.2b Check your email for a response
from My Total Connect Comfort.
This may take several minutes.
Note: If you do not receive a response,
check your junk mailbox or use an
alternate e-mail address.
 3.2c Follow activation instructions in
the email.
 3.2d Login.

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MACID MAC CRC
3.3 Register your Wi-Fi thermostat
After you are logged in to your Total
Connect Comfort account, register
your thermostat.
 3.3a Followtheinstructionson
the screen. After adding
your thermostat location
you must enter your
thermostat’s unique
identifiers:
  • MACID
  • MACCRC
Note: TheseIDsarelistedonthe
 ThermostatIDCardincluded
in the thermostat package.
 TheIDsarenotcasesensitive.
® U.S. Registered Trademark.
© 2012 Honeywell International Inc.
69-2723EFS—01 M.S. 04-12
Printed in U.S.A.
HONEYWELL MODEL: RTH8580WF
MAC ID: MAC CRC:
69-2723EFS-01
Thermostat ID Card
Use the MAC ID and CRC ID to register
this product at mytotalconnectcomfort.com
Carte d’identification de thermostat
Utilisez l’identication MAC et l’identication CRC pour
enregistrer ce produit à mytotalconnectcomfort.com
Tarjeta de identificación del termostato
Utilice la identicación MAC y la identicación CRC para
inscribir este producto en mytotalconnectcomfort.com