Lennox 10X87 Controller 321894-709 Always verify your specific model

Always verify your specific model number before use

the bulb should be mounted at the 10 o'clock or 2 o'clock position on a horizontal run of the suction line

the HH18HV160 is built to withstand the rigorous cycling common in high-efficiency HVAC equipment

Reliable SPDT Contacts: Provides flexible wiring options for normally open or normally closed circuits in safety interlock loops

This 1-speed motor utilizes CW rotation (clockwise) and draws only 0

Lennox 10X87 Controller 321894-709 Always verify your specific modelThe Lennox 10X87 C3 Controller is a high performance HVAC control board engineered for precision management of heating and cooling cycles in light commercial and residential Lennox Prodigy systems. This OEM replacement part, originally identified as Lennox 103976 01, provides the essential logic required to regulate temperature, airflow, and humidity levels across up to three independent zones. As a core component of the Lennox C3 control system, this