Zooz Zen21 3-way Wiring - Please look over my shoulder

[lflorack (Lee Florack)]

As we were discussing my Zooz ZEN21 installation here, yesterday I also sent a request for guidance to the Zooz team. Their response was very detailed - both with their step by step instructions and their annotations on the photos I sent them. I was so impressed with their response, I’m sharing it here:

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Hi Lee,

Thank you for sending the images to us and I do apologize about the late reply.

You’re right about the power line being in the box on the right where you actually also have the connection to the load so you’re dealing with Option 1 from our diagrams.

Below are the step by step instructions on how to wire the 3-way switches, I’ve also attached visual instructions for illustration.

Please make sure power is off during the installation. If you’re not confident about following the instructions or identifying the wires, please consult a licensed electrician for your own safety.

BOX 1 (the box on the right with power where your Zooz switch goes):

1. Disconnect the white wire (we marked it light blue) which is now connected under a wire nut with 2 black wires and connect that wire to the bundle of white neutrals in the back. Then run a jumper wire (included in the packaging) from the white wire bundle to the Neutral terminal on the Zooz switch.
2. Take the 2 black wires from that wire nut (we marked them dark blue) and connect them to the 2 holes in the Line terminal on the Zooz switch.
3. Disconnect the black wire coming from your 14-3 romex (which is now connected to the switch, we marked it purple) and cap it .
4. Connect the black wire from the 14-2 romex (we marked it black) to the Load terminal on the Zooz switch.
5. Connect the red wire from the 14-3 romex to the Traveler terminal on the Zooz switch.

BOX 2 (the box on the left where the regular on/off switch stays):

1. Disconnect the black wire from the switch and cap it .
2. Leave the red and white wires connected as they are.

Please let me know if you have any questions about the above and I’ll be happy to help.

Agnes

Support Team
Zooz

ask@getzooz.com
www.getzooz.com

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