Copeland 918-0052-00 Crankcase Heater

The Copeland 918-0052-00 Crankcase Heater is a critical field-service component engineered to maintain optimal lubricant temperature during the compressor's off-cycle. As a 5-inch diameter belt-type heater, it provides direct thermal contact to ensure that refrigerant does not entrain in the oil, preventing flooded starts and slugging that lead to mechanical failure. Operating at 240V and delivering 40 watts of consistent heat, this OEM Copeland heater is built for seamless integration with Copeland scroll and reciprocating compressors. The assembly features 21-inch leads and a robust stainless steel strap design for secure fitment in demanding commercial refrigeration and HVAC environments. By stabilizing the crankcase temperature in low-ambient conditions, this crankcase heater replacement significantly reduces bearing wear and preserves the integrity of the compressor's internal components.

Key Benefits for Technicians:

• Prevents Refrigerant Migration: Maintains oil temperature above the saturation point to keep refrigerant from condensing in the crankcase.
• Optimized Heat Transfer: The belt-type design ensures 360-degree thermal contact for maximum efficiency and even heat distribution.
• Industrial Build Quality: Constructed for high-duty cycles on 50/60 Hz systems, ensuring reliability in varying electrical environments.
• Precise OEM Fit: Rated specifically for 5" diameter housings, eliminating the loose fitment common with universal "one-size-fits-all" heaters.

Common Questions/FAQs:

What happens if the crankcase heater fails?
Failure to maintain heat allows refrigerant to mix with oil, resulting in poor lubrication at startup, which often causes premature scroll or valve plate damage. Replacing a faulty 918-0052-00 is an essential preventative maintenance step.

Is this heater compatible with 208V systems?
While designed for 240VAC, it will operate at 208V, though there will be a proportional reduction in wattage output. Verify that the reduced wattage meets the specific requirements for your ambient temperature conditions.

Does this heater require an external controller?
It should be wired through the compressor contactor's auxiliary dry contacts to ensure the heater is energized only when the compressor is in the off-cycle.

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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.