Honeywell RTH8500 Wi-Fi Series Thermostat User Guide
Glossary
C wire
The “C” or common wire brings 24 VAC power to the thermostat from the heating/cooling system.
Some older mechanical or battery operated thermostats may not have this wire connection. It is
necessary for establishing a Wi-Fi connection to your home network.
Heat Pump heating/cooling system
Heat pumps are used to heat and cool a home. If your old thermostat has a setting for auxiliary or
emergency heat, you likely have a heat pump.
Conventional heating/cooling system
Non–heat pump type systems; these include air handlers, furnaces or boilers that run on natural gas,
oil or electricity. They may or may not include an air conditioner.
Jumper
A small piece of wire that connects two terminals together.
MAC ID, MAC CRC
Alphanumeric codes that uniquely identify your thermostat.
®
QR Code
Quick response code. A two-dimensional,machine-readable image. Your wireless device can read
the black and white pattern in the square and link its browser directly to a web site. QR Code is a
registered trademark of DENSO WAVE INCORPORATED.
1-year limited warranty
Honeywell warrants this product, excluding battery, to be free from defects in the workmanship or materials, under normal use and
service, for a period of one (1) year from the date of purchase by the consumer. If at any time during the warranty period the product is
determined to be defective or malfunctions, Honeywell shall repair or replace it (at Honeywell’s option).
If the product is defective,
(i) return it, with a bill of sale or other dated proof of purchase, to the place from which you purchased it; or
(ii) call Honeywell Customer Care at 1-855-733-5465. Customer Care will make the determination whether the product should be
returned to the following address: Honeywell Return Goods, Dock 4 MN10-3860, 1885 Douglas Dr. N., Golden Valley, MN 55422, or
whether a replacement product can be sent to you.
This warranty does not cover removal or reinstallation costs. This warranty shall not apply if it is shown by Honeywell that the defect or
malfunction was caused by damage which occurred while the product was in the possession of a consumer.
Honeywell’s sole responsibility shall be to repair or replace the product within the terms stated above. HONEYWELL SHALL NOT
BE LIABLE FOR ANY LOSS OR DAMAGE OF ANY KIND, INCLUDING ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES
RESULTING, DIRECTLY OR INDIRECTLY, FROM ANY BREACH OF ANY WARRANTY, EXPRESS OR IMPLIED, OR ANY OTHER
FAILURE OF THIS PRODUCT. Some states do not allow the exclusion or limitation of incidental or consequential damages, so this
limitation may not apply to you.
THIS WARRANTY IS THE ONLY EXPRESS WARRANTY HONEYWELL MAKES ON THIS PRODUCT. THE DURATION OF ANY
IMPLIED WARRANTIES, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE,
IS HEREBY LIMITED TO THE ONE-YEAR DURATION OF THIS WARRANTY. Some states do not allow limitations on how long an
implied warranty lasts, so the above limitation may not apply to you.
This warranty gives you specific legal rights, and you may have other rights which vary from state to state.
If you have any questions concerning this warranty, please write Honeywell Customer Relations, 1985 Douglas Dr, Golden Valley, MN
55422 or call 1-855-733-5465.
27
33-00133EF—01
33-00133EF-01
Regulatory information
FCC Compliance Statement (Part 15.19) (USA only) • Connect the equipment into an outlet on a circuit
This device complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions:
1 This device may not cause harmful interference, and
2 This device must accept any interference received,
including interference that may cause undesired
operation.
different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV
technician for help.
Thermostats
To comply with FCC and Industry Canada RF exposure
limits for general population/ uncontrolled exposure, the
antenna(s) used for these transmitters must be installed
to provide a separation distance of at least 20 cm from
all persons and must not be co-located or operating in
conjunction with any other antenna or transmitter.
FCC Warning (Part 15.21) (USA only)
Changes or modifications not expressly approved by the
party responsible for compliance could void the user’s
authority to operate the equipment.
Section 7.1.2 of RSS-GEN
FCC Interference Statement (Part 15.105 (b))
(USA only)
Under Industry Canada regulations, this radio transmitter
may only operate using an antenna of type and
maximum (or lesser) gain approved for the transmitter by
Industry Canada. To reduce potential radio interference
to other users, the antenna type and its gain should
be so chosen that the equivalent isotropically radiated
power (e.i.r.p.) is not more than that necessary for
successful communication.
This equipment has been tested and found to comply
with the limits for a Class B digital device, pursuant to
Part 15 of the FCC Rules. These limits are designed
to provide reasonable protection against harmful
interference in a residential installation. This equipment
generates uses and can radiate radio frequency energy
and, if not installed and used in accordance with the
instructions, may cause harmful interference to radio
communications. However, there is no guarantee that
interference will not occur in a particular installation. If
this equipment does cause harmful interference to radio
or television reception, which can be determined by
turning the equipment off and on, the user is encouraged
to try to correct the interference by one of the following
measures:
Section 7.1.3 of RSS-GEN
Operation is subject to the following two conditions:
1 this device may not cause interference, and
2 this device must accept any interference, including
interference that may cause undesired operation of the
device.
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and
receiver.
Automation and Control Systems
Honeywell International Inc.
1985 Douglas Drive North
Golden Valley, MN 55422
Honeywell Ltd
705 Montrichard Avenue
Saint-Jean-sur-Richelieu, Québec
J2X 5K8
wifithermostat.com
® U.S. Registered Trademark.
Apple, iPhone, iPad, iPod touch and iTunes are trademarks of Apple Inc.
All other trademarks are the property of their respective owners.
© 2015 Honeywell International Inc.
33-00133EF—01 M.S. 06-15
Printed in U.S.A.
| General | Details |
|---|---|
| Name | Honeywell RTH8500 Wi-Fi Series Thermostat User Guide |
| Make | Honeywell |
| Language | English |
| Filetype | PDF (Download) |
| File size | 1.23 MB |

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