This genuine OEM Trane replacement part

you must use the 316 stainless steel bellows models specifically rated for ammonia service

Since it is a normally closed switch

This Trane replacement part maintains high thermal conductivity with a specialized element design capable of operating at 208V/240V configurations

Advanced Distributor Products 76717100 Limit Switch 320788-703 This genuine OEM Trane replacementThe Advanced Distributor Products 76717100 L160 30F Limit Switch is a critical OEM replacement part engineered for high precision thermal protection in residential and commercial heating systems. This L160 30F high limit switch is designed to open at 160F and close once the temperature drops by a 30F differential, preventing heat exchanger damage and ensuring furnace safety sensor reliability. As a genuine ADP HVAC component, the 76717100 offers