Honeywell RTH9580 Wi-Fi - Installing Your Thermostat

9
1.7 Attach thermostat
to wallplate
Align the thermostat with
wallplate and snap into
place.
Thermostat
Wallplate
LEVEL
HERE
M34498
1.8 Switch heating/cooling
system ON
Important!
1.8a Verify that the C wire is
connected at the thermostat
and at the heating/cooling
system.
1.8b Make sure the heating/
cooling system door is
firmly secured.
 1.8c SwitchpowerbackONfor 
your heating/cooling system
at the breaker box or its
power switch.
Circuit
breaker
box
Heating/cooling
system power
switch
or
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