Spike Connect Interface: Features a secure spike terminal designed for high-voltage lead penetration

While this is an OEM part for International Environmental equipment

The solid core desiccant blend is optimized for modern HFC refrigerants and POE oils

This 30-inch diameter axial fan blade features a 31-degree pitch and a 5-blade configuration designed to optimize CFM delivery across large-tonnage Trane rooftop units and chillers

you must use 5/32" tubing couplers at the thermostat interface

Lennox 39M84 Control Board 30067439-890 Spike Connect Interface: Features aThe Lennox 39M84 Fan Control Board is a high performance OEM component designed to manage blower motor operations in residential and light commercial HVAC systems. Functionally identical to the Honeywell ST9103A1069, this board acts as the central logic center for orchestrating fan on and fan off delay sequences. Replacing a faulty control board with a genuine Lennox 39M84 restores proper airflow and protects the heat exchanger from overheating by