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1. Turn the system power OFF from the existing
thermostat. Turn the power to the HVAC system OFF
at the main power panel or at the furnace.
2. Remove the existing thermostat cover to access the
wires from the wall.
(Some thermostats may have multiple covers, screws or other
locking devices that must be removed or disengaged.)
3. Locate, but do not disconnect the wires.
(If wires are not visible, they may be connected to the back of the
wall plate. Some models may have doors that open to expose the
wires and mounting screws.)
UNINSTALLING THE EXISTING UNIT