ST9120C Furnace Blower Control Circuit Board, Replacement Air Furnace Blower Control Circuit Board for All R40403-003, 0403-001, 40403-002, 20054502, ST9120A, B or C Blower Controllers

Applicable model: Fit for all 40403-001, 40403-002, 20054502, ST9120A, B or C blower controllers. Also replaces part # R40403-001, R40403-002, R40403-003, 20054501, ST9120C 2010, 1138-83-1002A, 87H88, R20054502, R38493B001, 87H8801. Replaces other part # 1138-100, 1711, HCSI PLC=0, 164322, T9AV5D12-22, 16391, CPC E 94V0, 1138-83-1003A. Please confirm your model before purchasing.
Specifications: Operating line voltage: 85 to 135 VAC, 50/60Hz. Secondary control voltage: 18.0 to 30.0 VAC, 50/60Hz. Maximum blower load: 15FLA, 30LRA, 120 VAC; 7.5FLA, 15LRA, 240 VAC. Maximum inductor load: 3FLA, 10LRA, 120 VAC; 1.5FLA, 5LRA, 240 VAC. Humidifier terminals: .8A, 115 VAC. Electronic air purifier: .8A, 115 VAC.
Function: The controller receives the input from the thermostat (W, Y and G), pressure switch and high temperature limit switch input. The controller also provides user-selectable blower delay through dip switch settings. The 24-volt circuit of this controller is protected by a 5-amp replaceable automotive type fuse. Effectively controls the operation of the 2-speed blower motor and induction motor, and adjusts and protects according to the input signal.
Material and Installation: This control circuit board is made of PCB material, which has good moisture resistance, stable performance and long service life. The installation process is easier because no additional wiring kit is required. In addition, it works well with both the original wiring and the updated wiring, ensuring a solid and reliable connection. In addition, an installation manual is provided in the package to help users complete the installation process more easily.
Packing: 1* Furnace Blower Control Circuit Board