Copeland 918-0047-00 Heater

The Copeland 918-0047-00 is an industrial-grade crankcase heater designed to maintain optimal oil temperature within the compressor housing during off-cycles. Operating at 120V with a 90-watt output, this compression wrap-around heater is a critical component for preventing refrigerant migration and subsequent liquid slugging upon startup. This specific 120V AC model features a 48-inch lead length and is engineered for high-capacity systems, specifically compatible with Copeland Scroll ZB50K-ZB88K, ZRT168-ZRT288, and ZR84K-ZR144K series compressors. By keeping the lubricant at a temperature higher than the evaporator's saturated suction temperature, this 90W heater prevents oil foaming and ensures proper lubrication of the scroll sets or reciprocating internals under low ambient conditions. Built to OEM technical specifications, this wrap-style component provides uniform heat distribution, securing the long-term reliability of your HVACR refrigeration system by mitigating the risk of mechanical failure caused by flooded starts.

• Universal Scroll Optimization: Specifically designed for Copeland 918-0047-00 applications, ensuring a precise fit for ZB, ZR, and ZP scroll series.
• Superior Moisture Protection: Eliminates refrigerant-oil dilution to maintain high viscosity and protection of the drive train.
• Direct OEM Replacement: Features 48-inch high-temperature resistant leads for simplified field termination and 120V compressor heater compatibility.
• Thermal Efficiency: Optimized 90-watt density prevents carbonization of the oil while ensuring enough heat to repel liquid refrigerant.

Common Questions

Which compressors are compatible with the Copeland 918-0047-00?
This 120V 90W heater is engineered for Copeland Scroll models including the ZB50K through ZB88K series, ZR84K through ZR144K series, and select ZP120K to ZPT240 residential and commercial compressors.

Why is a 90-watt crankcase heater necessary for cold weather operation?
In low ambient environments, refrigerant naturally migrates to the coldest part of the system—the compressor crankcase. Without a compressor heater 120V, the refrigerant mixes with the oil, leading to "slugging" and oil washout, which can cause internal hardware damage.

What is the lead length for the 918-0047-00 model?
The standard 918-0047-00 comes equipped with 48-inch electrical leads, providing sufficient length for reaching control panels in most package unit and split system configurations.

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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.