Daikin-McQuay 7500002 Main Board 321142-301 High-temperature terminal and rod construction

High-temperature terminal and rod construction for long-term resistance to oxidation

Using it with R-22 will result in improper superheat and potential system failure

This model is compatible with LP vapor

ensuring seamless integration into existing BAS and DDC networking environments

Isolate the transformer and check for continuity across the windings

Daikin-McQuay 7500002 Main Board 321142-301 High-temperature terminal and rod constructionThe Daikin McQuay 7500002 Main Board, also identified as the A1P Main Board, serves as the primary system controller for specific commercial HVAC units, including select McQuay Maverick II and Daikin MPS rooftop units. This OEM microprocessor control board manages critical system logic, integrated cooling heating functions, and safety interlocks for precision climate control. As a direct replacement part, it ensures seamless HVAC system communication