Carrier HK42FZ112 Control Board

The Carrier HK42FZ112 Control Board is an electronic component used in gas furnaces, and air handling equipment in HVAC systems. It operates by taking the low-voltage signals sent by the thermostat and safety sensors and processing the signals to control the sequencing of the parts of the system, including the inducer motor, ignition system, gas valve, and blower motor. It connects the circuit board to the wiring harnesses and control relays in the furnace control compartment. The board assists, in the organisation of the heating cycle operate communication between the furnace controls, and the electrical signals between the sensors and the mechanical parts.