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As a critical failure-point part
Key Benefits Precise Pressure Regulation: Features a 95/115# adjustable pressure range to maintain stable suction pressure and prevent coil frost-up
Key Benefits Magnetic Clutch Technology: Prevents motor damage by allowing the actuator to stall at either end of the stroke
and most modern refrigerants including ammonia
As a veteran HVAC service tech
York S1-331-03003-000 Control Board Kit 320735-701 As a critical failure-point partThe York S1 331 03003 000 Control Board Kit is an essential OEM integration for managing the sequence of operation in compatible 24V residential furnace systems and light commercial air handlers. This HVAC circuit board replacement functions as the central processor, interpreting thermostat signals to regulate the inducer motor, gas valve timing, igniter sequence, and blower motor speeds. Engineering for direct fit compatibility, the S1 331 03003 000