User's Manual

19
Step 4. Attach base to wall
Be careful that the existing wires don’t fall back into the wall.
Position the base of your ecobee
3
and mark the mounting
holes on your wall with a pencil.
Attaching the trim plate
If the smaller trim plate doesn’t cover the marks left by the
previous thermostat, attach the larger trim plate instead.
Remove the center piece
by gently pushing its left
side towards you.
Insert the center piece using the tabs
on the right as a guide. It will snap
into place when correctly inserted.