Honeywell RTH9580 User Manual page 11

Installing your thermostat
8 Switch heating/cooling system ON.
Important!
8a Verify that the C wire is
connected at the thermostat and
at the heating/cooling system.
8b Make sure the heating/cooling
system door is firmly secured.
8c Switch power back ON for your
heating/cooling system at the
breaker box or its power switch.
Before connecting to your Wi-Fi network,
you need to set initial thermostat options
to define your heating/cooling system:
• Language
• Home or business
You can customise other options later.
9 Follow prompts on the screen to select
appropriate options.
9a Touch the language you want the
thermostat to display, then touch
Next
.
9b Select Home or Business
installation, then touch
Next
9c Touch
location—touch THERMOSTAT and
follow the rest of the instructions.
9d Select what your thermostat will
control and touch
Note:
Touch the orange Help button on any
screen for more information.
Next
.
, or name the thermostat
Next
.
Circuit
breaker
box
9
or
Heating/cooling
M31544
system power
switch
Next
Next
Next
Next
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