Copeland 918-0088-04 Heater

Ensure reliable compressor operation in low-ambient conditions with the Copeland 918-0088-04 Crankcase Heater. This authentic OEM replacement part is engineered to maintain optimal oil temperature, effectively preventing refrigerant migration to the compressor crankcase during off-cycles. Designed for 4.5 to 5 HP compressors, this 240V wrap-around heater delivers a focused 40W to 56W power output, keeping the lubricant fluid and reducing the risk of liquid slugging at startup. By minimizing oil dilution and viscosity issues, this component directly safeguards mechanical integrity in refrigeration and air conditioning systems. The 918-0088-04 is built for durability and precision fitment on Copeland CRNQ, CRPQ, and CRT5 series models, including common TFD and PFV voltage configurations. The rugged construction and UL-recognized design ensure long-term performance in demanding commercial or residential HVACR environments where temperature control is critical for system longevity.

• Prevents Liquid Slugging: Maintains heat to stop refrigerant from condensing in the oil, protecting internal valves and scrolls.
• High-Efficiency Heat Transfer: The wrap-around design ensures maximum surface contact for consistent thermal distribution.
• Broad Compatibility: Specifically designed for Copeland 4.5/5 HP units and 240V/265V electrical circuits.
• Simplified Installation: Standard lead lengths and flexible band design allow for rapid field replacement on compatible compressor shells.
• Optimized Wattage: Engineered to provide sufficient warmth without carbonizing the compressor oil.

When should I replace a crankcase heater?
If you notice high oil viscosity during cold starts or if the heater shows no continuity during a resistance check, it is time for a replacement to prevent compressor damage.

Is the 918-0088-04 compatible with 208V systems?
While typically rated for 240V, using this heater on a 208V circuit will result in reduced wattage output. Always verify your specific compressor's thermal requirements before installation.

Do I need this if I use a pump-down cycle?
While pump-down cycles help, a crankcase heater provides a secondary layer of protection against migration and is highly recommended for all outdoor or rooftop units exposed to cold ambient air.

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.