Replacing An Existing Wired Thermostat - nest Learning Thermostat Installation Manual

Replacing an existing wired thermostat

After you've installed the Heat Link,
you'll need to:
• Remove the existing thermostat
• Install the Nest base
• Connect the thermostat wires
• Attach the Nest display
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7. Install the Nest base
Remove the old thermostat and install
the Nest base. You can attach the base
directly to the wall or use the included
trim plate to cover up any marks and to
route wires that are outside the wall.
If you're using the trim plate, snap it onto
the base first, then screw them to the
wall as one piece.
Remember, if the old thermostat isn't
in a good place, you should install
the Nest Thermostat somewhere new.
Check the placement guidelines on
page 13.
8. Connect wires
Connect the wires coming through the
wall to Nest's T1 and T2 terminals.
It doesn't matter which wire goes into
which connector.
→ Continue to page 18.
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