This is a 1-trial lockout module

Can I use this for a 480V application

Key Benefits OEM Precision: Genuine Reznor 116023 replacement ensures exact fitment and electrical compatibility without field modifications

Standardized Fittings: Features a universal 1/2" NPT inlet and outlet

Carrier HK42FZ064 Control Board 320788-703 This is a 1-trial lockoutReplace a failing or shorted furnace control with the Carrier HK42FZ064 Control Board, the definitive OEM replacement for maintaining communication between your thermostat, inducer motor, and blower. As a veteran grade HVAC furnace control board, this unit is engineered to manage critical furnace ignition sequences and safety protocols, specifically resolving furnace error codes such as 1 3 (Limit circuit lockout) or 3 4 (Ignition proving failure).