providing 35 in-lb of torque

featuring a factory-calibrated pilot orifice

While designed as an OEM Carrier part

While designed for specific York frames

A failing block switch is a frequent cause of safety lockouts

Lochinvar & A.O. Smith 100112163 Kit 328140-751 providing 35 in-lb of torqueThe Lochinvar & A. O. Smith 100112163 Kit is a professional grade 3" PVC Concentric Termination Kit engineered for high efficiency condensing water heaters and boilers. This ULC S636 compliant venting system allows for a single 4. 5 inch to 5 inch wall or roof penetration, integrating both the combustion air intake and flue gas exhaust into one streamlined assembly. Designed to replace standard two pipe systems, this concentric vent kit reduces