Copeland 918-0518-00 Crankcase Heater

The Copeland 918-0518-00 Crankcase Heater is a critical 120V insertion-style heating element designed for Copeland semi-hermetic compressors. To prevent liquid refrigerant migration and ensure reliable oil lubrication during cold-start cycles, this 200-watt heater maintains a precise temperature differential within the compressor oil sump. Engineering specifications include a 3 1/2-inch diameter insertion probe, matched with a 33-inch conduit length and 40-inch lead wires for versatile field installation. This HVAC compressor heater is built for durability in high-vibration environments, making it a standard OEM replacement part for commercial refrigeration and air conditioning systems. By reducing the risk of oil foaming and mechanical fatigue, the 918-0518-00 ensures the compressor operates within specified viscosity ranges from the initial startup. Proper installation ensures optimized compressor longevity and prevents catastrophic slugging during ambient temperature fluctuations.

• Optimized Oil Temperature: Prevents refrigerant dilution in the oil sump to maintain critical lubrication.
• Direct Insertion Design: Provides more efficient heat transfer to the lubricant compared to external wrap-around heaters.
• Industrial Grade Conduit: The 33-inch conduit and 40-inch leads provide ample length for secure routing through the electrical cabinet.
• Electrical Compatibility: Precision-rated for 120V circuits, drawing 1.67 amps for consistent thermal output.

How do I verify the fit for my specific compressor model?
Confirm the oil sump depth and port size matches the 3 1/2-inch probe length and check the compressor nameplate for 120V heater compatibility.

Can this heater be used on refrigeration systems with different voltage?
No, this unit is specific to 120V power supplies. Using a 240V supply will result in immediate component failure.

Why is the insertion style preferred over a belly band heater?
Insertion heaters deliver thermal energy directly into the oil, resulting in faster temperature stabilization and higher thermal efficiency in extreme cold conditions.

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.