
Copeland 918-0056-04 Crankcase Heater
As an HVACR professional, you know that cold-weather startups are the primary cause of compressor failure. The Copeland 918-0056-04 Crankcase Heater is a 240V 120W belt-type heater engineered to solve this by maintaining high oil temperature during off-cycles. By providing constant heat to the compressor housing, this wrap-around heater prevents refrigerant migration and dilutes the liquid refrigerant that can settle in the oil, which leads to damaging liquid slugging at startup. Designed specifically for high-capacity units like the ZR250 scroll compressor, its bellyband style ensures maximum surface contact for superior heat transfer. The aluminum construction and robust strain relief make it a durable, OEM-grade replacement that withstands harsh field conditions while protecting the internal lubrication system from losing viscosity in low ambient temperatures.
Key Benefits- Prevents Refrigerant Migration: Stops refrigerant from condensing in the crankcase oil during standby.
- Eliminates Liquid Slugging: Ensures the compressor starts with warm, lubricating oil rather than a refrigerant-oil mixture.
- Direct Heat Transfer: The belt-mount design wraps securely around the shell for focused thermal conductivity.
- High-Wattage Performance: Delivers a consistent 120 watts to maintain oil fluidity in extreme cold.
- Simplified Installation: Features a flexible bellyband for quick field retrofitting on compatible Copeland shells.
Is the 918-0056-04 compatible with ZR250 models?
Yes, this specific 120W unit is the designated bellyband crankcase heater for ZR250 series compressors and other large-frame Copeland scrolls requiring 240V power.
Why use a belt-type heater instead of an insertion heater?
The wrap-around belt heater allows for easier external installation and replacement without breaking the refrigerant circuit, providing safe and effective heat through the compressor wall.
What happens if the crankcase heater fails?
Without a functioning heater, the oil becomes thick and diluted with refrigerant, often leading to bearing wash-out and mechanical lock-up during winter operation.
This item is not eligible for free shipping.
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.
Copeland 918-0056-04 Crankcase Heater
As an HVACR professional, you know that cold-weather startups are the primary cause of compressor failure. The Copeland 918-0056-04 Crankcase Heater is a 240V 120W belt-type heater engineered to solve this by maintaining high oil temperature during off-cycles. By providing constant heat to the compressor housing, this wrap-around heater prevents refrigerant migration and dilutes the liquid refrigerant that can settle in the oil, which leads to damaging liquid slugging at startup. Designed specifically for high-capacity units like the ZR250 scroll compressor, its bellyband style ensures maximum surface contact for superior heat transfer. The aluminum construction and robust strain relief make it a durable, OEM-grade replacement that withstands harsh field conditions while protecting the internal lubrication system from losing viscosity in low ambient temperatures.
Key Benefits- Prevents Refrigerant Migration: Stops refrigerant from condensing in the crankcase oil during standby.
- Eliminates Liquid Slugging: Ensures the compressor starts with warm, lubricating oil rather than a refrigerant-oil mixture.
- Direct Heat Transfer: The belt-mount design wraps securely around the shell for focused thermal conductivity.
- High-Wattage Performance: Delivers a consistent 120 watts to maintain oil fluidity in extreme cold.
- Simplified Installation: Features a flexible bellyband for quick field retrofitting on compatible Copeland shells.
Is the 918-0056-04 compatible with ZR250 models?
Yes, this specific 120W unit is the designated bellyband crankcase heater for ZR250 series compressors and other large-frame Copeland scrolls requiring 240V power.
Why use a belt-type heater instead of an insertion heater?
The wrap-around belt heater allows for easier external installation and replacement without breaking the refrigerant circuit, providing safe and effective heat through the compressor wall.
What happens if the crankcase heater fails?
Without a functioning heater, the oil becomes thick and diluted with refrigerant, often leading to bearing wash-out and mechanical lock-up during winter operation.
This item is not eligible for free shipping.
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.
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Description
As an HVACR professional, you know that cold-weather startups are the primary cause of compressor failure. The Copeland 918-0056-04 Crankcase Heater is a 240V 120W belt-type heater engineered to solve this by maintaining high oil temperature during off-cycles. By providing constant heat to the compressor housing, this wrap-around heater prevents refrigerant migration and dilutes the liquid refrigerant that can settle in the oil, which leads to damaging liquid slugging at startup. Designed specifically for high-capacity units like the ZR250 scroll compressor, its bellyband style ensures maximum surface contact for superior heat transfer. The aluminum construction and robust strain relief make it a durable, OEM-grade replacement that withstands harsh field conditions while protecting the internal lubrication system from losing viscosity in low ambient temperatures.
Key Benefits- Prevents Refrigerant Migration: Stops refrigerant from condensing in the crankcase oil during standby.
- Eliminates Liquid Slugging: Ensures the compressor starts with warm, lubricating oil rather than a refrigerant-oil mixture.
- Direct Heat Transfer: The belt-mount design wraps securely around the shell for focused thermal conductivity.
- High-Wattage Performance: Delivers a consistent 120 watts to maintain oil fluidity in extreme cold.
- Simplified Installation: Features a flexible bellyband for quick field retrofitting on compatible Copeland shells.
Is the 918-0056-04 compatible with ZR250 models?
Yes, this specific 120W unit is the designated bellyband crankcase heater for ZR250 series compressors and other large-frame Copeland scrolls requiring 240V power.
Why use a belt-type heater instead of an insertion heater?
The wrap-around belt heater allows for easier external installation and replacement without breaking the refrigerant circuit, providing safe and effective heat through the compressor wall.
What happens if the crankcase heater fails?
Without a functioning heater, the oil becomes thick and diluted with refrigerant, often leading to bearing wash-out and mechanical lock-up during winter operation.
This item is not eligible for free shipping.
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.












