High Pressure Rating: Robust cast iron construction certified for steam boiler operations up to 150 PSI

providing industrial-grade protection for high-pressure steam service

UV-stabilized gray plastic

Optimized blade pitch for consistent airflow volume and static pressure management

this is the brass immersion well housing only

Trane CNT7750 Control Board 319825-402 High Pressure Rating: Robust castEnsuring consistent air distribution across a residential or light commercial system requires a high performance 24V Air Flow Control Board. The Trane CNT7750 Control Board, also identified by the superseding part number CNT07750 or manufacturing number D156232G06, serves as the primary logic center for regulating blower operations and ductwork damper adjustments. In professional applications, this Trane OEM control board is critical for restoring the