The Carrier HK42FZ034 Furnace Control Board is a crucial component for regulating the temperature in your home or business. Designed for use with Carrier, Payne, and Bryant furnaces, this control board is a 24V corded electric device made of durable fiberboard. With a single-phase power phase, this model is specifically designed to ensure efficient and reliable heating control for your system. The Carrier HK42FZ034 is an essential part for maintaining optimal performance in your HVAC system.