This kit provides the necessary feedback for the control board to manage modulating boiler firing rates and domestic hot water delivery

and flow capacity

you must use pliers to break the designated propane tab on the PCB before installation

It is typically used to expand the capacity of a zone panel when the current draw of multiple dampers exceeds the panel's direct output rating or when specific logic isolation is required across four separate circuits

This direct-drive motor is designed to improve system static pressure handling and overall HVAC energy efficiency

Lochinvar & A.O. Smith 100159009 Conversion Kit 318172-701 This kit provides the necessaryThe Lochinvar & A. O. Smith 100159009 Conversion Kit is a critical OEM component designed for field converting high efficiency heating systems from natural gas to liquid propane (LP). This propane conversion kit is engineered for precision, ensuring the burner receives the correct fuel to air ratio for stable combustion and optimal thermal output. As a direct replacement for the LPK3947, it integrates seamlessly with Lochinvar Knight and A. O. Smith