York 031-02479-001 Relay Board 318973-401 a valve with EPDM or

a valve with EPDM or PTFE seals and appropriate coil insulation is required

Cross-reference the 100281574 part number with your unit's data plate

The robust plastic construction is dishwasher-safe

leak-free brazing in professional installations

York 031-02479-001 Relay Board 318973-401 a valve with EPDM orThe York 031 02479 001 Relay Board is a critical OEM replacement component designed for Mustang heating and cooling systems. As a veteran grade HVAC control board, it functions as the central logic unit, managing and directing high voltage electrical signals to ensure precise sequencing and timing of furnace and air conditioning operations. This Mustang control relay board is engineered with integrated circuitry that switches circuits in response to