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This specific fan blade is designed for Clockwise (CW) rotation when viewed from the discharge side (typically the top of the unit)
Whether used in parking garages
ensuring that the system remains offline until a technician can diagnose the root cause of the pressure spike
making it a staple for VAV box re-heat
Direct OEM Replacement: Seamlessly installs onto existing McDonnell & Miller 150 Series float chambers (Part #173003)
Sporlan 953580 Interface Board 320788-704 This specific fan blade isThe 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