Copeland 918-0118-06 Crankcase Heater

The Copeland 918-0118-06 Crankcase Heater is a critical external heating component designed specifically for Copeland H and K semi-hermetic compressors. As a veteran technician knows, maintaining proper sump temperature is vital to preventing refrigerant migration during the off-cycle. This bolt-on type heater provides a fixed 50-watt output at 240 volts, ensuring that the lubricant remains at a viscosity conducive to immediate oil pressure development upon startup, especially in rooftop or outdoor units exposed to low ambient conditions.

This OEM Copeland heater features a rugged construction with a 24-inch conduit and 30-inch leads for flexible field wiring and protection against mechanical wear. By utilizing a bolt-on design, this unit ensures maximum thermal transfer to the compressor housing compared to wrap-around alternatives. Proper integration of this 240V crankcase heater effectively mitigates the risk of liquid slugging, which is a primary cause of valve reed failure and bearing washouts in commercial refrigeration and HVAC service applications.

• Direct OEM Compatibility: Engineered specifically for the Copeland 918-0118-06 specification to fit H and K series compressors without field modification.
• Enhanced Compressor Longevity: Prevents refrigerant from condensing in the oil, protecting internal components from premature wear during cold starts.
• Robust Field Design: Includes a 24" protective conduit to withstand the vibration and harsh environments typical of industrial condensing units.
• Efficient Heat Transfer: The bolt-on type mounting provides a secure, consistent thermal connection for reliable 50W heat distribution.

Is this heater compatible with Discus compressors?
This specific model is primarily designed for the H and K semi-hermetic series. For Discus models, you should verify the specific part number as mounting configurations often differ.

Can I use this on a 208V circuit?
While it will physically function, the wattage output will drop significantly due to the lower voltage. For optimal performance and to maintain the specified 50W output, a 240V supply is required.

How does this prevent liquid slugging?
By keeping the crankcase oil warmer than the rest of the system, it ensures refrigerant stays in a vapor state within the compressor, preventing the "boiling" effect that causes oil to carry over into the cylinders.

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.