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External Equalization: Provides improved response time and sensitivity compared to internally equalized models for complex piping layouts
By preventing "cold starts" and reducing the risk of catastrophic compressor failure due to liquid slugging
5 inches WC but remains adjustable from 3 to 5 inches WC to ensure precise manifold pressure during commissioning
What does it mean if my boiler won't fire
Sporlan 953580 Interface Board 318518-761 External Equalization: Provides improved responseThe 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
