Installation Guide

Auxiliary Relay Installation

Power the relay headers on the Clyr Controller, select an AUX port, and configure the auxiliary relay in the Clyr app.

Jandy Aqualink panel showing four installed relays.
Auxiliary relays let the Clyr Controller automate blowers, lights, pumps, and other loads.

Tools needed

Lay out everything before you open the controller enclosure.

  • Clyr Lite or Clyr Controller
  • Clyr relay jumper cable
  • Clyr power jumper cable (6 inch red/black lead included with the controller)
  • Small flathead screwdriver
  • Large Phillips screwdriver
Tools and jumper cables required to wire the auxiliary relay.
The relay jumper connects the controller to the relay bank while the power jumper feeds 12V.

Step 1 - Connect your controller

Confirm the controller is powered, online, and assigned to the correct pool.

Complete the controller connection guide if your controller is not yet set up.

Step 2 - Wire up Clyr Controller

Power the controller with the 24VDC supply, then use the short red/black jumper to bridge 12VDC to the relay header ground. This ensures every auxiliary relay receives power.

Clyr Controller with the power jumper installed across the relay header.
Older controllers use the supplied jumper; newer revisions include a black shunt that serves the same purpose.

If your controller already has the black shunt installed, leave it in place—the jumper is not required.

Step 3 - Choose an AUX port

Plug the relay jumper cable into the AUX port you plan to control. AUX 1 sits closest to the valve ports, followed by AUX 2 and AUX 3.

Relay jumper cable plugged into AUX 1 on the Clyr Controller.
AUX 1 is shown here, but any port works if you match the software configuration later.

Step 4 - Add auxiliary relay in app

In the Clyr app, open Settings → Devices → Add → Pool Equipment and choose Auxiliary Relay.

Selecting auxiliary relay from the add equipment screen.
The auxiliary relay card appears under pool equipment once the controller is online.

Name the relay after the load it controls—blower, lights, pump, or other accessory. Then pick the AUX port you connected earlier.

Configuring the auxiliary relay name and port in the Clyr app.
Match the port selection to the AUX harness you plugged into the controller.

Step 5 - Test the AUX port

Create a quick schedule or manual command for the relay. You should hear and feel a distinct “click” when the relay energizes.

Learn how to automate relays with schedules and programs once the test succeeds.

Next steps

With the auxiliary relay online you can tie it into spa modes, lighting scenes, or timed features inside the Clyr app.