Copeland 918-0001-01 Crankcase Heater

The Copeland 918-0001-01 is a high-performance immersion type crankcase heater engineered for industrial HVACR applications requiring reliable refrigerant migration prevention. Operating at 480 Volts and delivering 65 Watts, this heater maintains optimal oil temperature within the compressor sump during off-cycles, effectively preventing liquid slugging and ensuring consistent lubrication upon startup. Featuring a 4" insertion length, it is designed for direct immersion into the oil reservoir, providing superior heat transfer compared to wrap-around alternatives. This OEM replacement part is critical for maintaining compressor longevity in low-ambient conditions. Its robust construction ensures compatibility with a variety of Copeland Discus and reciprocating compressors, making it a standard inventory item for technicians managing high-voltage commercial refrigeration systems. By keeping the refrigerant from condensing in the oil, this heater mitigates the risk of bearing failure and mechanical stress during the initial startup sequence.

• Optimized Heat Transfer: The 4" immersion probe delivers heat directly to the compressor lubricant for rapid temperature maintenance.
• Industrial Voltage Compatibility: Specifically rated for 480V circuits, matching high-leg commercial power requirements without the need for additional transformers.
• Reduced Mechanical Wear: Prevents refrigerant dilution of the oil, maintaining the viscosity necessary to protect critical internal components.
• Precision OEM Fit: Drop-in replacement for Copeland PN 918-0001-01, ensuring correct thread seating and electrical terminal alignment.

What is the primary function of the immersion heater compared to a belly band heater?
The immersion heater is in direct contact with the oil, providing more efficient thermal energy transfer and faster response times in extreme cold compared to external wrap-around heaters.

Can this heater be used on 208/230V systems?
No, this unit is specifically rated for 480V. Installing it on a lower voltage system will significantly reduce the wattage output, failing to provide adequate heat to protect the compressor.

Is a thermostat required for operation?
While often wired to stay energized during the compressor's off-cycle via a normally closed contactor, it should be integrated according to the specific system's wiring schematic to ensure efficiency.

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.