York 025-41975-480 Crankcase Heater

The York 025-41975-480 Crankcase Heater is a critical OEM component designed to maintain optimal compressor oil temperatures during equipment off-cycles. Operating at 480V with a 90W power output, this belly-band heater prevents refrigerant migration and subsequent oil dilution, ensuring a reliable flooded-start protection for York HVAC systems and industrial refrigeration units. For technicians servicing rooftop units or chillers, maintaining the proper compressor crankcase heater function is essential to prevent bearing failure and liquid slugging. This specific model features a durable construction engineered for high-voltage industrial applications, providing consistent heat transfer to the compressor base. Integrating this 90W 480V crankcase heater into your preventative maintenance schedule helps maintain system lubrication integrity and extending the service life of reciprocating or scroll compressors. Ensure the heating element is securely fastened 2 inches above the mounting plate and interlocked with the contactor for secondary heater deactivation during compressor operation.

• Refrigerant Migration Control: Heavily reduces the risk of refrigerant vapor condensing in the oil during low ambient conditions.
• Enhanced Lubrication: Maintains oil viscosity to ensure immediate and effective lubrication upon compressor startup.
• High-Voltage Efficiency: Specifically rated for 480V operation, delivering a steady 90W output for industrial-grade heating.
• Direct OEM Fit: Designed as a drop-in replacement part for York equipment, ensuring easy installation and terminal compatibility.
• Equipment Protection: Helps prevent catastrophic compressor damage caused by flooded starts and liquid slugging.

How do I test if a York 025-41975-480 is functioning?
With power disconnected, use a multimeter to check the resistance (Ohms) across the leads; an "OL" reading indicates a broken element and requires replacement.

When should this crankcase heater be powered on?
The heater must be energized whenever the compressor is not running. It is typically wired across the open contacts of the compressor contactor.

How long should the heater run before starting a system that has been powered down?
To safely boil off any migrated refrigerant, the heater should be energized for at least 24 hours before attempting to start the compressor.

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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.