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7
UNINSTALLING THE EXISTING UNIT
1. Turn the system power OFF at the existing thermostat. Turn the power to the
HVAC system OFF at the main power panel or at the furnace.
(Failure to turn off the power to the existing thermostat before removal could damage your
system.)
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.)
4. Do not let the wires slip back into the wall during disconnection. You may want to
secure the wires to the wall as you disconnect them. After all wires are labeled,
disconnect each wire and remove the existing wall plate. (Any unused wires
should be capped with an approved electrical connector, such as electrical tape.)
44002-01 r051807