York S1-024-31995-000 Hard Start Device

The York S1-024-31995-000 Hard Start Device is a critical field-service component designed to provide the necessary starting torque for high-inertia HVAC compressors. Engineered as a 2-wire hard start kit, this OEM part is specifically built for 3.5 to 5-ton single-phase systems operating at 265 VAC. By integrating a high-quality start capacitor with an internal potential relay, it effectively bridges the electrical gap during high-head pressure or low-voltage conditions, ensuring the compressor hits synchronization speed without excessive amperage inrush. For technicians dealing with older reciprocating or scroll compressors that struggle to kick over, this 25A rated motor starter reduces mechanical stress and heat buildup during the start cycle. Its compact 2-3/4" x 4" form factor allows for a clean install within the existing control box, and the direct S1-02431995000 replacement ensures compatibility with York, Luxaire, and Coleman units. Utilizing this OEM start capacitor assembly helps mitigate flickering lights and protects the compressor windings from long-term damage caused by stalled starts.

• Instant Torque Boost: Increases starting torque by up to 300%, assisting compressors in overcoming high differential pressures.
• Simplified 2-Wire Install: Non-polarized lead wires allow for rapid integration into the run capacitor circuit without complex rewiring.
• System Longevity: Dramatically reduces the duration of locked rotor amperage (LRA) to prevent overheating of internal motor windings.
• High-Voltage Rating: Rated up to 265V to handle utility fluctuations and demanding light commercial or residential applications.

When should I install a hard start kit on a York unit?
If you observe the compressor hum without starting, or if the homeowner reports flickering lights when the cooling cycle begins, the S1-024-31995-000 is the standard solution for increasing starting force.

Is this compatible with 5-ton systems?
Yes, this device is specifically engineered for 3.5 to 5-ton single-phase compressor motors, making it a versatile choice for larger residential condensers.

Can this be used on a TXV-equipped system?
Technicians often recommend hard start kits like this for systems with Thermostatic Expansion Valves (TXV) because these valves do not bleed pressure during the off-cycle, requiring more torque to start against high head pressure.

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Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.