the 97575 resists heat exposure

ensuring the system resets only once the temperature has dropped to a safe 135°F

Technicians should look for "failed open" symptoms such as a high-pitched whistling sound or live steam blowing into the return lines

Operational Efficiency: Eliminates pressure drops and slow response times caused by worn internal valve components

replacing the internal diaphragm and valve seat assembly is a standard protocol for maintaining thermal stability

Carrier 334357-754 Heat Exchanger 318973-401 the 97575 resists heat exposureThe Carrier 334357 754 Secondary Heat Exchanger is a critical OEM condensing component designed for high efficiency gas furnaces across the Carrier, Bryant, and Payne product lines. This secondary coil is engineered to extract latent heat from combustion gases, maximizing thermal efficiency before exhaust. Technical specifications confirm a width of 24. 5 inches, a depth of 25 inches, and a height of 12. 5 inches. As a genuine Carrier replacement