Advanced Thermal Shielding: Integrated heat shield design protects internal wiring and igniter components from high-velocity thermal discharge

ensuring pinpoint accuracy for critical cooling or heating loads

This kit features a 1 5/8" sweat service valve

Dual Fuel Utility: Optimized for use with natural gas and liquid propane furnace configurations

a strange "formaldehyde" smell

Carrier HH18HA192 Limit Switch 322838-752 Advanced Thermal Shielding: Integrated heatThe Carrier HH18HA192 is a high limit, auto reset limit switch designed for critical thermal protection in heating applications. This genuine OEM Carrier replacement part is engineered to monitor heat exchanger temperatures and interrupt the electrical circuit if internal conditions exceed the safe operating threshold. With a strictly calibrated temperature range of 140 190F, it serves as a primary safety component to prevent equipment overheating and