Description
The Weil McLain 591-391-824 Wiring Harness Control Module to Circulator is an electrical interconnection assembly used in hydronic heating systems to link the control module with the circulator pump in HVAC systems. It is installed in boilers where coordinated communication between control logic and water circulation components is required. The harness transmits power and control signals to ensure the circulator operates according to heating demand and system sequencing. It is used during installation and servicing of boiler systems to maintain proper electrical routing, and reliable operation of the circulation system within heating applications.
