while some kits include a black 300-650 range knob

Noise Reduction: Automatically scales back fan speed during cooler ambient periods

the unit reduces mechanical stress on motor bearings and belts

always verify the terminal configuration and pin layout against your specific model before installation

Sporlan 953580 Interface Board 326010-701 while some kits include aThe Sporlan 953580 Interface Board, also known as the IB G Control Board, is the advanced technical successor for the discontinued Sporlan 952956. Developed for precision refrigerant flow management, this HVAC interface module converts 0 10VDC or 4 20mA analog input signals into digital step motor pulses to drive electronic expansion valves. As an all in one replacement, the 953580 consolidates the functionality of previous IB 1, IB 2, IB 3, and IB 6