CO₂ dosing

01 / Start with the right guide

Match your equipment

Use this guide for the approved Clyr CO₂ assembly connected to the controller’s dedicated CO₂ output. CO₂ lowers pH; this is not a chlorine generator or an AUX-connected liquid dosing pump.

1. 1Verified pH and operating feedback
2. 2Clyr CO₂ control
3. 3Approved valve, regulator and injection assembly

How the parts work together. This is a system overview, not a terminal wiring diagram.

02 / Get ready

Before you start

• Record the equipment model, controller generation and installed software version. Use the matching product manuals.
• Have a qualified installer isolate every relevant electrical supply and verify absence of voltage before opening equipment. Turning it off in the app does not isolate power.
• Have a qualified installer secure the cylinder and install the approved regulator, tubing, valve, injection assembly and any required backflow protection. Follow the gas supplier’s handling and ventilation instructions.
• Install and verify the required pressure sensor and pH sensor. Record independent water-test results before enabling dosing.

03 / One step at a time

Set it up

1. 01

   Inspect the complete assembly

   Have the installer verify the cylinder, regulator, tubing direction, injection location, accessory ratings and connections. Complete the prescribed leak checks. Do not use a pressure setting from a different regulator or pool.

2. 02

   Connect the dedicated output

   With power isolated, connect the approved control assembly according to the exact controller and accessory instructions, including polarity. Restore covers and power after inspection.

3. 03

   Add CO₂ dosing

   In Settings → Devices, select the connected controller and add Pool Equipment → CO2 Dosing. Give it a clear name and save. Adding the device does not commission automatic dosing.

4. 04

   Configure and validate the feedback

   Open Settings → Auto Pilot → Auto Dosing. Select the correct pressure and chemistry sensors and enter the pH target approved for this pool. Confirm the readings are current, plausible and consistent with independent testing.

   Have the installer configure and demonstrate the required circulation/flow permissives and shutdown behavior. A pressure reading alone does not prove adequate flow at the injection point.

   ▶Understand pH, ORP and trends2:19 · Clyr video

5. 05

   Commission and record the result

   Use the approved commissioning procedure to verify actuation, stopping, mixing and the measured response. Record the settings and shutdown checks before leaving automatic dosing enabled. Monitor the initial operation and recheck the water independently.

04 / Prove the result

Check it works

A saved setting tells you what you requested. These checks tell you what the equipment actually did.

• The selected pH sensor belongs to this pool and agrees with an independent water test.
• The required pressure/operating feedback is valid and the installer has verified circulation permissives.
• The assembly stops when required and passes its leak checks.
• The approved commissioning settings and first observed results are recorded.

05 / Find the next useful check

If something is wrong

06 / Save for later

Keep these handy

Product instructions

• Clyr installation and power guide ↗

Use the manual supplied with your exact equipment and controller revision. If the connectors, labels or app choices differ, stop and contact Clyr with a photo of the model label and the screen you are on.