Lochinvar & A.O. Smith 100166080 Thermal Switch 322057-301 Ensure all electrical power and

Ensure all electrical power and gas supplies are disconnected before accessing the cabinet to replace the existing control and bracket assembly

and packaged HVAC systems

we recommend maintaining the original pipe diameter to ensure the BTU rating of the heater is not compromised by gas starvation

a shielded interconnect cable

Lochinvar & A.O. Smith 100166080 Thermal Switch 322057-301 Ensure all electrical power andThe Lochinvar & A. O. Smith 100166080 Thermal Switch is a critical safety component designed for Residential FVIR (Flammable Vapor Ignition Resistant) gas water heaters. As a resettable thermal switch, it monitors the combustion chamber for excessive temperatures or restricted airflowcommon issues in systems with a clogged flame arrestor or inadequate makeup air. This rollout switch acts as a manual reset high limit, preventing gas flow to the burner