York S1-025-31960-000 Heater

The York S1-025-31960-000 is an OEM-grade 480V crankcase heater engineered for commercial and industrial HVAC systems where reliability during the off-cycle is non-negotiable. Operating at 70W, this CC band heater is specifically designed to maintain oil temperature within the compressor housing, preventing refrigerant migration and subsequent oil dilution. For any technician working with high-voltage York or Luxaire units, this component is essential to avoid flooded starts that can lead to bearing wear or catastrophic compressor failure. The compressor band heater construction ensures a secure, tight-contact fit against the compressor shell for maximum thermal conductivity. Using OEM York HVAC parts ensures that the electrical specifications match the system's control circuit requirements precisely, preventing premature element burnout. This heater is a critical line of defense in maintaining the mechanical integrity of the lubrication system, particularly in ambient conditions where temperature fluctuations occur frequently.

• OEM compatibility ensures precise fitment on specified York and Luxaire compressor shells.
• Fixed 480V rating specifically designed for industrial power configurations.
• 70W output provides optimal thermal transition to keep refrigerant out of the oil reservoir.
• Durable band construction maintains constant tension for efficient heat transfer.
• Reduces the risk of liquid slugging and mechanical stress during cold-start sequences.

How do I verify if the York S1-025-31960-000 is functioning?
Using a multimeter, technicians should check for continuity across the leads or measure the amperage draw while the compressor is in the off-cycle. For a 480V 70W heater, you should see approximately 0.15 Amps if the circuit is closed and energized.

Can this heater be used on a 230V system?
No, this is a dedicated 480V component. Installing it on a lower voltage system will significantly reduce the wattage output, failing to provide sufficient heat to prevent refrigerant migration.

Why is a crankcase heater necessary for scroll compressors?
While scroll compressors are more tolerant than reciprocating units, refrigerant migration can still wash out the oil from the bearings. This band heater ensures the oil remains at a temperature that naturally repels liquid refrigerant.

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.