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.
Regulatory information
FCC Compliance Statement (Part 15.19) (USA only)
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.
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.
FCC Interference Statement (Part 15.105 (b))
(USA only)
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:
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit 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.
Section 7.1.2 of RSS-GEN
To Next Page
Loading...
