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69-2718EF—03 22
Installing your thermostat
10 Switch heating/cooling system ON.
Important!
10a Verify that the C wire is
connected at the thermostat
and at the heating/cooling
system.
10b Make sure the heating/
cooling system door is firmly
secured.
10c Switch power back ON for
your heating/cooling system
at the breaker box or its
power switch.
M31544
or
Circuit breaker
box
Heating/cooling
system power
switch