This part is a 5

Ideal for technicians seeking a reliable HVAC temperature sensor to prevent equipment failure through precise thermal feedback

the 1370903S replacement part ensures the burner circuit opens if internal plenum temperatures exceed safe operational parameters

effectively preventing circuit overload and reducing mechanical stress on the system

the VS3212 supports both low-pressure steam up to 15 psig and 50% glycol solutions

Lennox 49F59 Defrost Relay R-410A This part is a 5The Lennox 49F59 Defrost Relay (also identified under part number 49F5901) is an essential OEM switching component designed for precise defrost cycle management in residential and commercial heat pump systems. As a veteran grade SPDT and DPST relay, this unit operates within a 208 240V range at 60Hz, providing the heavy duty electrical switching required to energize defrost heaters and manage reversing valve transitions. This part is critical for