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The flashing LED sequence corresponds to specific fault codes
allowing for precise airflow tuning to meet specific CFM requirements
If the vacuum breaker is constantly weeping from the atmospheric vent or fails to close during pressurized flow
0A to ensure tight cycle control and improved system efficiency
A lockout typically occurs if the 120V HSI fails to reach the proper temperature or if the flame sensor does not detect a microamp signal within the 4-second TFI
York S1-024-36311-000 VFD Controller 319825-402 The flashing LED sequence correspondsUpgrade and maintain your industrial HVAC systems with the York S1 024 36311 000 VFD Controller, a high performance 2HP 460V Variable Frequency Drive engineered for rigorous motor speed management. As the direct OEM replacement for the discontinued S1 024 36035 000, this unit ensures a seamless swap out for technicians servicing premium packaged rooftop units and commercial air handlers. Housed in a durable NEMA 1 enclosure, this controller regulates