the Honeywell TK300-30 is specifically designed for closed-loop hydronic heating systems

making it suitable for both point-of-source and larger distribution systems

and plug nut core tube sub-assembly

The fixed differential ensures a consistent gap between the trip point and the point at which the system can be manually reset

This kit provides the necessary hardware to adapt to specific appliance configurations

Lochinvar & A.O. Smith 100108891 Blower Fan 320734-701 the Honeywell TK300-30 is specificallyAs a seasoned technician, you know that the Lochinvar & A. O. Smith 100108891 Blower Fan is a critical component for maintaining the precise air to fuel ratio required in high efficiency forced draft boilers. This OEM blower assembly, often cross referenced with part numbers 9002669005 and 0012400490, is engineered to handle the rigorous demands of combustion air delivery and effective flue gas removal. Featuring a single phase motor rated at . 05 HP