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Visual Status: Includes a built-in LED indicator to provide immediate confirmation of relay energization during troubleshooting
You should verify your system's refrigerant type and flow requirements against the factory service manual or by contacting a technical specialist
featuring a current rating of 22 Amps at 120/240V and 18 Amps at 277V
Weatherproof Reliability: The NEMA 4X rated housing protects internal components from harsh environmental factors and washdown conditions
York S1-031-01971-000 Control Board 319852-301 Visual Status: Includes a built-inThe York S1 031 01971 000 Defrost Control Board is a critical OEM replacement part designed to manage heat pump termination and initiate cycles within commercial refrigeration systems and residential HVAC units. This Source 1 technical component functions as the primary logic board, coordinating the reversing valve, auxiliary heat strips, and outdoor fan motor to prevent hazardous ice accumulation on the condenser coils. Engineered for precise
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