ACiQ Condensate Float Switch Wiring | CN23 Port & J7 Jumper Installation Guide

Installing a condensate safety switch on an ACiQ air handler? In this quick installation guide, we'll show you exactly where to connect a condensate float switch on ACiQ AHD and PAH Series air handlers, including the correct CN23 port, J7 jumper location, and common mistakes to avoid. Many installers mistakenly connect to the wrong CN23 terminal. This video explains the difference between the two CN23 ports, why only one is designed for a condensate safety switch, and how to properly enable float switch protection. In this video, you'll learn: ✔ How to wire a condensate safety switch on an ACiQ air handler ✔ The correct CN23 port for float switch installation ✔ The difference between the two CN23 terminals ✔ Where to locate and remove the J7 jumper ✔ How to access the side control board ✔ What happens if the float switch opens ✔ Condensate safety switch troubleshooting tips Installation Steps Covered 1. Locate the Correct CN23 Port • Identify the two CN23 connectors on the control boards. • Learn why the side-facing board is the correct location for a condensate safety switch. • Understand why the forward-facing CN23 terminal should not be used. 2. Access the Side Control Board • Remove the control board cover for easier access. • Disconnect the power supply and wiring harness as needed to safely reach the board. • Locate the CN23 connector and J7 jumper. 3. Remove the J7 Jumper • Find the factory-installed J7 jumper. • Remove the jumper to activate the condensate safety switch input. • Verify you're removing the correct jumper before proceeding. 4. Connect the Float Switch • Wire the condensate safety switch to the CN23 port on the side-facing board. • Complete the installation and restore the control board components. 5. Verify System Operation • Confirm the condensate safety switch is functioning properly. • Learn what error code appears if the float switch opens due to a high water level. • Verify the air handler is ready for normal operation. Compatible ACiQ Equipment • ACiQ AHD Series Air Handlers • ACiQ PAH Series Air Handlers Correct condensate safety switch installation helps protect your HVAC system from water damage while ensuring reliable operation. Follow this guide to wire your float switch correctly the first time. Learn more about ACiQ Air Handler Products: https://aciq.com/residential-products... Download Installation Manuals & Resources: https://aciq.com/product-tech-center/ Learn more about ACiQ: https://aciq.com/ Become an ACiQ Dealer: https://aciq.com/become-a-dealer Questions? Our HVAC experts are here to help. Call: 1-877-909-ACiQ Contact us: https://aciq.com/contact-us/ Follow ACiQ for product updates and HVAC tips: Facebook:   / aciq869   Instagram:   / aciqac   X: https://x.com/aciqac LinkedIn:   / aciq   TikTok:   / aciqac