York 331-02977-000 Control Board Kit Refrigerant Key Benefits Universal Compatibility: The

Key Benefits Universal Compatibility: The 120/208/240V input makes this a "truck stock" essential for servicing various residential and light commercial equipment

Key Benefits Universal Compatibility: Designed for use in electric furnaces

ensuring precise fitment and pressure integrity

this model must be installed in an upright position only

York 331-02977-000 Control Board Kit Refrigerant Key Benefits Universal Compatibility: TheThe York S1 331 02977 000 2 Stage ECM Control Board Kit is an essential OEM replacement engineered for precise furnace sequence control and ECM blower motor modulation. Designed for two stage gas furnaces, this integrated furnace control (IFC) manages induction motor timing, ignition sequences, and multi speed airflow adjustments to ensure optimal thermal efficiency. It serves as the direct HVAC replacement board for several legacy models, including