Firomatic HW-200 Fusible Handwheel 200°F Copper 12511U

The Firomatic HW-200 Fusible Handwheel Copper 12511U is a temperature-sensitive handwheel used in HVAC systems for controlling oil-related equipment. Assembled with copper, it uses a fusible element rated at 200F that responds to excessive heat by releasing the handwheel mechanism. It assist in interrupting fuel flow when surrounding temperatures reach the specified threshold. The handwheel is used with compatible heating and fuel-handling assemblies where manual operation and a thermal shield are required. It operates as a manually operated control with a heat-responsive safety setting, assisting in managing fuel flow during abnormal temperature conditions and ensuring proper system operation.