MARS 32605 Crankcase Heater

The MARS 32605 Crankcase Heater is a critical component for maintaining compressor reliability, specifically engineered to prevent refrigerant migration during the off-cycle. This 240V 54W crankcase heater features a durable stainless steel construction and an oval-profile belt design that ensures maximum heat transfer to the compressor housing. By keeping the sump temperature above the system's ambient saturation point, this crankcase heater belt protects against flooded starts and prevents oil dilution, which is essential for preserving proper lubrication and extending the service life of high-efficiency condensers and heat pumps.

Designed for professional installation, the MARS 32605 utilizes a high-temperature silicone rubber element and comes equipped with 30-inch leads featuring stripped ends for direct integration into the control circuit. This non-self-regulating HVAC crankcase heater provides a consistent 54-watt output, making it an ideal compressor heater replacement for technicians troubleshooting tripped breakers or slugging issues in residential and light commercial refrigeration systems. Its moisture-proof, corrosion-resistant exterior is built to withstand harsh outdoor environments, ensuring the compressor oil viscosity remains optimal even in extreme low-temperature conditions.

• Prevents Refrigerant Migration: Maintains a temperature differential that keeps liquid refrigerant from condensing in the compressor oil during idle periods.
• Eliminates Flooded Starts: Reduces mechanical stress and potential valve damage by ensuring a smooth, gas-only startup.
• Robust Construction: Features a stainless steel belt and silicone-insulated leads for superior resistance to corrosion and thermal cycling.
• Fast Installation: The flexible belt design and 30-inch stripped leads allow for quick field replacement on various compressor diameters.

• Why is my compressor slugging on startup? Slugging often occurs when liquid refrigerant migrates to the crankcase during the off-cycle; installing a MARS 32605 heater keeps the oil warm to prevent this mixture.
• Can I use this heater on a 208V system? While designed for 240V, it can operate at 208V, though the wattage output will be reduced accordingly; always verify your system's voltage requirements.
• Does this heater run while the compressor is active? No, for maximum efficiency, it should be wired through auxiliary contacts to stay energized only when the compressor is off.

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.