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Bard part number SK111 is an OEM hard start kit designed to help a 230V single-phase Bard compressor start more reliably when conditions are tough, such as marginal voltage at startup or when pressures have not fully equalized. This kit uses a start capacitor and a potential relay that keeps the start capacitor in the circuit only during startup, then drops it out once the compressor comes up to speed to protect the motor windings and prevent overheating. SK111 is commonly specified across many Bard wall-mounted and outdoor packaged air conditioner and heat pump models, so it is a smart choice when you are restoring factory starting performance or replacing a failed start kit during service. Confirm compatibility by model and serial number and follow the Bard wiring diagram for proper connections and safe operation.