Carrier HK42FZ020 Control Board 323613-751 Features independently programmable inputs to

Features independently programmable inputs to accommodate various pulse constants and meter types

Common Questions What is the maximum pressure rating for the AFS-952-1-B

Enhanced Safety Logic: Features a 30-second pre-purge and 3-trial ignition sequence to safely manage gas flow

The 20 mm diameter of the extension rod provides the necessary structural rigidity to prevent bowing or fatigue under high-torque applications

Can this relay be used for heat pump applications

Carrier HK42FZ020 Control Board 323613-751 Features independently programmable inputs toThe Carrier HK42FZ020 Control Board is a critical OEM replacement part designed for two stage gas furnace systems. This furnace circuit board serves as the central logic unit, managing the complex sequence of operations for high efficiency heating cycles. Engineered for Carrier, Bryant, and Payne equipment, it replaces previous iterations like the HK42FZ019, providing reliable control over the inducer motor, hot surface igniter, and blower motor