Lochinvar & A.O. Smith 100109617 Tubing 340155-7026 designed to act as a

designed to act as a control circuit switch rather than a power-switching device

and 619FNX024OW part numbers

The System Sensor D4120 is an industrial-grade 4-wire photoelectric duct smoke detector designed for high-performance smoke detection in HVAC air handling systems

Smith 100111539 Controller is the current

Common Questions & Technical Support: Is this the correct replacement for a 56183 Modine part

Lochinvar & A.O. Smith 100109617 Tubing 340155-7026 designed to act as aThe Lochinvar and A. O. Smith 100109617 is a precision engineered 60 inch pilot tubing assembly designed for high performance commercial and residential water heaters. This 1 4 inch OD aluminum tubing provides the necessary durability and flexibility for routing through compact burner compartments without risking structural kinks or flow restrictions. Rated for high temperature environments, this OEM replacement pilot line ensures a consistent fuel