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Honeywell RTH8500WF Wi-Fi Series Quich Start Manual

Wi-fi touchscreen programmable thermostat
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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
wifithermostat.com/support
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
primary 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.
1.4 Remove wallplate
Remove the old wallplate from
the wall after all wires are
labeled and disconnected.
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Automation and Control Solutions
Honeywell International Inc.
1985 Douglas Drive North
Golden Valley, MN 55422
wifithermostat.com
® U.S. Registered Trademark.
© 2012 Honeywell International Inc.
69-2717—05 M.S. Rev. 07-12
Printed in U.S.A.

Quick Start Guide

Wi-Fi Touchscreen
Programmable
Thermostat
RTH8500WF Wi-Fi Series
Gather
• Small screw driver
• Thermostat ID card
• Your home Wi-Fi
network password
or
Circuit
Heating/cooling
breaker
system power
box
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.
If you have an older thermostat with a
sealed mercury tube, see warning page
for proper disposal instructions.
C
Sticky
tag
Blank
sticky
tag
Terminal
C
designation
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.
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.

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.
M31535
1.7c Verify wire is firmly secured by gently
pulling on wire.
switch
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.
Labels don't match or have heat pump system?
See User Guide.

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).
MCR33823
1.9 Attach thermostat
to wallplate
Align the thermostat onto
wallplate and snap into place.
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.
MCR31537
1.11 Set date and time
Touch
or
s
displayed time and date.
Press and hold a button to
quickly change a setting.
69-2717-05
Thermostat
L
E/AUX
K
Note:
application might be different
than the wiring from above.
Thermostat interior
Wallplate
HEAT PUMP
CONVENTIONAL
Y2
L
AUX
W2
/E
K
K
buttons to change
t
Y ear, Month, Day(Top)
Y ear, Month, Day(Top)
Year
Set Time
Set Time
Time
Finger holds
Wallplate (back view)
M31538
Wallplate
HEAT PUMP
CONVENTIONAL
Y2
RC
RC
M31543
R
R
L
E/AUX
W2
W
O/B
K
Y
Y
K
G
G
C
C
MCR31539
only
Remove metal jumper
if you
have both R and RC wires
HEAT PUMP
CONVENTIONAL
RC
RC
Y2
R
R
W
O/B
W2
K
Y
Y
G
G
C
C
MCR31541A
Insert wires here
The wiring for your
M31542
RC
RC
M31543
R
R
W
O/B
Y
Y
G
G
C
C
Thermostat
or
Circuit
Heating/cooling
M31544
breaker
system power
box
switch
Day
Month
Turn over

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  Summary of Contents for Honeywell RTH8500WF Wi-Fi Series

  • Page 1: Quick Start Guide

    Automation and Control Solutions Honeywell International Inc. Month 1985 Douglas Drive North Set Time Set Time Time Golden Valley, MN 55422 wifithermostat.com ® U.S. Registered Trademark. © 2012 Honeywell International Inc. Turn over 69-2717—05 M.S. Rev. 07-12 Printed in U.S.A.
  • Page 2 • Laptop (recommended) and snap it back into place. • Smartphone • MAC CRC ® U.S. Registered Trademark. Return to 2.1 © 2012 Honeywell International Inc. 69-2723EFS—01 M.S. 04-12 69-2723EFS-01 View the Wi-Fi Enrollment video Printed in U.S.A. Note: These IDs are listed on the at wifithermostat.com/videos...