The -800 bill of materials includes the 42-inch molded plug wiring harness and mounting hardware to ensure a clean drop-in installation

The integrated pressure switch assembly is vital for verifying negative pressure in the vent pipe before the burner is permitted to fire

Serviceable Design: The removable end plate with plated steel internal parts allows technicians to swap cores without cutting the liquid line

To match the Trane FAN1836

which is essential for protecting against back-siphonage and back-pressure in small-scale commercial and residential applications

Resideo 40003916-011 Replacement Motor 320788-704 The -800 bill of materialsThe Resideo 40003916 011 Replacement Motor is a critical component for restoring the functionality of your hydronic heating system. Engineered specifically as a replacement actuator for V8043C series zone valves, this 24Vac synchronous motor ensures reliable cycling of 2 way, normally closed valve bodies. As a seasoned technician, you know that field reliability depends on precise fitment; this unit features a manual lever for manual opening during