Lennox 10C16 Control Module 318423-701 NPT Threading: Standard 3/4" female

NPT Threading: Standard 3/4" female connections ensure compatibility with standard boiler manifolds and discharge piping

ideal for critical vent line applications

or soot tracing around the collector box

and oil-free air to prevent clogging of the internal orifices and maintain the 20 scim air consumption rating

verify the line voltage at the circulator terminals and check for a blown fuse on the control board

Lennox 10C16 Control Module 318423-701 NPT Threading: Standard 3/4" femaleThe Lennox 10C16, also known as the iHarmony Zoning Damper Control Module, is a high performance HVAC communication module designed for precise multi zone airflow management. This 24VAC control board integrates seamlessly with Lennox iComfort S30 and S40 smart thermostats to regulate up to four independent zones, ensuring consistent static pressure control and optimized discharge air temperatures. Built for technical reliability, the 10C16 module