Lochinvar & A.O. Smith 100112662 High Limit 340793-762 The Carrier 334357-751 Heat Exchanger

The Carrier 334357-751 Heat Exchanger is an OEM Carrier secondary condensing heat exchanger designed for 90% AFUE and higher gas furnaces

Common Questions What actuators are compatible with the VG1845FS

Replacing a failed blower motor with this genuine S1-024-35688-009 ensures the air handler maintains original equipment efficiency and noise vibration harshness (NVH) standards

What is the close-off pressure for this 1/2-inch valve

When should these tube assemblies be replaced during maintenance

Lochinvar & A.O. Smith 100112662 High Limit 340793-762 The Carrier 334357-751 Heat ExchangerThe Lochinvar & A. O. Smith 100112662 High Limit is a critical OEM safety control designed to prevent terminal damage in high output commercial and residential heating systems. Engineered for hydronic boilers and gas water heaters, this 165 degree limit switch monitors internal temperatures and breaks the electrical circuit if limits are exceeded. As a manual reset safety switch, it requires technician intervention to investigate the root cause of an