4-Way Diagram for ZEN71, ZEN72, ZEN32, and ZEN35 Switches

Zooz ZEN71, ZEN72, ZEN32, and ZEN35 switches can be wired in 4-way set ups with regular on/off switches only if load and line are in the same box. They can also be wired with ZAC99 momentary switches in other 4-way configurations as long as you have a neutral connection available in one of the boxes and access to advanced settings in your Z-Wave hub. Please look at the below instructions and diagram carefully before attempting the installation.

A 4-way is what we call 3-point control so 3 different switches controlling the same set of lights (if you're looking for 4 point control with 4 switches in the install, click here).
Zooz can only be wired in a 4-way if you have load and line in the same box. If you have load and line separated between two boxes, there's no way to wire these Zooz models with the two other existing switches unless you use 2 ZAC99 momentary switches and follow the appropriate diagram below. You will need to change the 3-way switch type for your Zooz smart switch in order to use it with the momentary switches so make sure you can access them from your Z-Wave system. The ZAC99 is a one-button switch and only the top portion of the switch is pressed. If you click the switch once, it will turn on. If you press and hold it while it's on, it will decrease brightness (when connected to the ZEN72/ZEN35 dimmer models). If you click it again, it'll turn off. Once off, when you press and hold it will increase brightness (when connected to the ZEN72/ZEN35 dimmer models).
If you have load and line in separate boxes, look into our S2 switches. Zooz S2 switches have an different wiring schematic that allows you to use the switches in 4 and 5-ways where load and line are separated. Here's more about wiring S2 switches in 4-ways (NOTE: the wiring for S2 switches is different than for the ZEN71, ZEN72, ZEN32, and ZEN35 switches. Do not try to wire S2 models and the models from this article the same way. The S2 models cannot be connected to the ZAC99 momentary switches).
The diagram shows all connections but ground (the ground wire was excluded in order to simplify the illustrations). Make sure you always ground all of your switches.
Colors and location of the common screw on the 3-way and 4-way switches are just for illustration and will not always match your set-up so please don't follow the colors or screw orientation blindly.
IMPORTANT: Once you connect your switches, please secure them in the box, making sure any bare wires and screws are isolated with electrical tape. After the switches are settled back in the box and the wall plate is re-installed, you can turn the power on and test the switches for on/off operation.
Use only simple on/off switches without LED indicators when wiring them with Zooz Z-Wave switches (no dimmers!).

4-ways are tricky and even electricians sometimes have trouble making the connections right. Follow the diagram exactly as shown, making sure the Zooz switch is installed in the box with line and load in it.

4-WAY WIRING DIAGRAM FOR ZEN71, ZEN72, ZEN32 AND ZEN35 MODELS CONNECTED TO REGULAR MECHANICAL ON/OFF SWITCHES:

In this scenario, one of the wires from the 14-3 romex that carries the traveler will be used to carry power or load (connection to the light) to common on the 3-way switch in the last box. In our diagram, in the "before" option, we show the most common situation in our experience where power is carried through the second box to the third using one of the wires traveling from box 1 to box 3. Since Zooz switches need direct connection to power, in the "after" diagram we show that same connection to power traveling from box 1 to common on the switch in box 3 but we are also adding power to the Zooz switch directly in box 1 so you will see 2 wires inserted in the Line terminal on the Zooz switch (or if there is a bundle of wired in the power source, you will simply run a jumper to the Line terminal on the Zooz switch).

BOX 1 (the box with power where your Zooz switch goes):
1. Run a jumper wire (included in the packaging) from the white wire bundle to the Neutral terminal on the Zooz switch.
2. Run a jumper wire (a piece of 14 AWG wire) from the black bundle to the Line terminal on the Zooz switch. Make sure that the black wire from the 14-3 romex is also connected to the power source bundle.
3. Disconnect the white wire coming from your 14-3 romex (which is now connected to the traveler screw on the switch) and cap it.
4. Connect the black wire from the 14-2 romex (previously connected to common on the 3-way mechanical switch) 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.
6. Connect ground to ground.

BOX 2 (where your 4-way switch stays):
1. Disconnect the white wire from the 14-3 romex coming from box 1 and cap it.
2. Leave all of the other wires connected as is, as long as the wiring matches our diagram (white and red wires on travelers, black wires tied together).

BOX 3 (where the regular 3-way on/off switch stays):
No changes here as long as the wiring matches our diagram (black wire on common, white and red wires on travelers).

4-WAY WIRING DIAGRAMS FOR ZEN71, ZEN72, ZEN32 AND ZEN35 MODELS CONNECTED TO ZAC99 MOMENTARY SWITCHES:

NOTE: You will need to change the 3-way switch type to momentary in the advanced settings of your ZEN71, ZEN72, ZEN32, or ZEN35 switch in order for the ZAC99 momentary switches to control the light in this installations.

Not sure where to find the settings in your Z-Wave hub? Try these shortcut links:

Advanced settings for the ZEN71 Switch

Advanced settings for the ZEN72 Dimmer

Advanced settings for the ZEN32 Scene Controller

Advanced settings for the ZEN35 Scene Dimmer

OPTION 1: This is the same scenario as in the diagrams above when load and line are in the same box.

BOX 1 (where you should replace the 3-way switch with a Zooz switch: ZEN71, ZEN72, ZEN32, or ZEN35 only):
1. Run a jumper from the white wire bundle to the Neutral terminal on the Zooz switch.
2. Run a jumper from the black wire bundle to the Line terminal on the Zooz switch. Make sure that the black wire from the 14-3 romex is also connected to the power source bundle.
3. Connect the red wire from the 14-3 romex to the Traveler terminal on the Zooz switch.
4. Connect the black wire from the 14-2 romex (previously connected to common on the 3-way mechanical switch) to the Load terminal on the Zooz switch.
5. Disconnect the white wire from the 14-3 romex and cap it.
6. Connect ground to ground.

BOX 2 (where you need to replace the 4-way switch with a ZAC99 momentary switch):
1. Connect both black wires to one of the screws / terminals on the ZAC99 switch.
2. Connect the red wires to the other screw / terminal on the ZAC99.
3. Disconnect the white wires and cap it.
4. Connect ground to ground.

BOX 3 (where you need to replace the 3-way switch with a ZAC99 momentary switch):
1. Connect the black wire to one of the screws on the ZAC99 switch.
2. Connect the red wire to the other screw on the ZAC99.
3. Disconnect the white wire and cap it.
4. Connect ground to ground.

OPTION 2: Load and line are in separate boxes. You can choose whether you put the main Zooz smart switch in the box with line or load.

OPTION 2A (below): Zooz switch installed in the box with power line.

BOX 1 (where you should replace the 3-way switch with a Zooz switch: ZEN71, ZEN72, ZEN32, or ZEN35 only):
1. Run a jumper from the white wire bundle to the Neutral terminal on the Zooz switch. Make sure that the white wire from the 14-3 romex is also connected to the neutral bundle.
2. Run a jumper from the black wire bundle (power source) to the Line terminal on the Zooz switch.
3. Connect the red wire from the 14-3 romex to the Traveler terminal on the Zooz switch.
4. Connect the black wire from the 14-3 romex to the Load terminal on the Zooz switch.
5. Connect ground to ground.

BOX 2 (where you need to replace the 4-way switch with a ZAC99 momentary switch):
1. Connect both white wires from the 14-3 romex cables to one of the screws / terminals on the ZAC99 switch.
2. Connect the red wires from the 14-3 romex cables to the other screw / terminal on the ZAC99.
3. Connect the black wires from the 14-3 romex cables together under a wirenut (they carry the connection to load from box 3 to the Zooz switch in box 1).
4. Connect ground to ground.

BOX 3 (where you need to replace the 3-way switch with a ZAC99 momentary switch):
1. Connect the white wires to one of the screws on the ZAC99 switch (or run a jumper from the neutral wire bundle to one of the screws, making sure the white wire from your 14-3 romex is also connected to the neutral bundle).
2. Connect the red wire to the other screw on the ZAC99.
3. Connect the black wire from the 14-2 romex (previously connected to common on the switch) and the black wire from the 14-3 traveler romex together under a wirenut (they carry the connection to load from box 3 to the Zooz switch in box 1).
4. Connect ground to ground.

OPTION 2B (below): Zooz switch installed in the box with load (connection to light).

BOX 1 (where you need to replace the 3-way switch with a ZAC99 momentary switch):
1. Connect the white wires to one of the screws on the ZAC99 switch (or run a jumper from the neutral wire bundle to one of the screws, making sure the white wire from your 14-3 romex is also connected to the neutral bundle).
2. Connect the red wire to the other screw on the ZAC99.
3. Connect the black wire from power source (previously connected to common on the switch) and the black wire from the 14-3 traveler romex together under a wirenut (they carry the connection to power from box 1 to the Zooz switch in box 3).
4. Connect ground to ground.

BOX 2 (where you need to replace the 4-way switch with a ZAC99 momentary switch):
1. Connect both white wires from the 14-3 romex cables to one of the screws / terminals on the ZAC99 switch.
2. Connect the red wires from the 14-3 romex cables to the other screw / terminal on the ZAC99.
3. Connect the black wires from the 14-3 romex cables together under a wirenut (they carry the connection to power from box 1 to the Zooz switch in box 3).
4. Connect ground to ground.

If you have any questions about the process, please do NOT attempt the installation! Reach out to us with any questions first, we'll be happy to help you complete the wiring safely.