Lochinvar & A.O. Smith 100166080 Thermal Switch 322057-301 What electrical connection is required

What electrical connection is required

This high-limit safety control is a direct drop-in replacement for failed or drifting thermal switches in residential and light commercial HVAC equipment

Versatile Compatibility: Fits standard Johnson Controls pneumatic setups with 1/8" NPT barbed fittings for easy field installation

those part numbers are identical and refer to the same Size #05 orifice assembly

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

Lochinvar & A.O. Smith 100166080 Thermal Switch 322057-301 What electrical connection is requiredThe 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