5. Wire and install the Chime Connector at the Chime Box
With Nest Hello successfully added to the Nest App, you are now ready to wire and install the chime
connector.
Why a Chime Connector? Nest Hello is more than just a doorbell and requires a continuous power
supply from the transformer. With just typical doorbell wiring, the video feed would only be live when
the doorbell is pressed. The chime connector provides that constant supply of power by acting as a
second switch.
Before you begin, switch off power to the doorbell at the circuit breaker.
Next, remove the chime box cover. Chimes come in different shapes and sizes and are
typically located in a hallway or common area near the center of the home. A few examples
are shown below.
Review the existing doorbell circuit. A typical doorbell circuit will have three wires with two
connections at three different locations: at the doorbell, at the chime box, and at a
transformer. Take a picture of the existing chime wiring. This can be a helpful reference
during installation.
The illustration below depicts a typical circuit. Note: the colors of the wires are for
illustration purposes only and not intended to indicate what you will find.
Now, insert the Chime Connector into the circuit (see illustration below).
● Insert the FRONT wire into the plastic clip on the chime connector’s white wire. This
wire is routed from the front doorbell to the chime box (blue in this example). First,
disconnect the FRONT wire from the chime box by loosening the screw and
removing the wire. Pinch the plastic clip to slide in the wire and release it to lock the
wire into place. Trim the wire to ¼” before inserting.
● Connect the chime connector’s white wire to the FRONT terminal at the chime box.
Hook the wire clockwise around the screw and tighten the screw into place.
● Disconnect the TRANS wire. This wire is connects the chime box to the transformer
(purple in this example). Loosen the screw and remove the wire.
● Insert the TRANS wire into the plastic clip on the chime connector’s gray wire.
Pinch the plastic clip to slide in the wire and release it to lock the wire into place.
Trim the wire to ¼” before inserting.
● Connect the chime connector’s gray wire to the TRANS terminal at the chime box.
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