MARS 32635 Heater

For industrial HVACR technicians managing high-voltage systems, the MARS 32635 Compressor Heater is a critical component for maintaining oil temperature above the refrigerant saturation point. Operating at 480V with a 70W output, this round crankcase heater is specifically designed to stop refrigerant migration and condensation within the compressor during off-cycles. Since liquid refrigerant mixing with oil can cause bearing wash-out or liquid slugging during startup, ensuring a functional 480V compressor heater is non-negotiable for system longevity in harsh environments.

This MARS 32635 70W heater features a rugged, corrosion-resistant exterior and a high-temperature silicone rubber element for superior heat transfer. The 30-inch insulated leads provide the necessary reach for standard high-voltage control boxes. As a veteran-grade HVAC replacement part, it is engineered for quick installation and precise thermal regulation, maintaining the crankcase oil temperature to optimize compressor performance and satisfy commercial energy efficiency requirements without the need for complex modifications.

Key Benefits

• Eliminates Diluted Lubrication: Effectively prevents refrigerant from condensing in the oil, ensuring full lubrication on every startup.
• Industrial Voltage Compatibility: Hardwired for 480V applications, delivering a steady 70W to meet specific compressor wattage requirements.
• Durable Construction: Built with a moisture-proof, corrosion-resistant casing and high-temp silicone components for long-term service in demanding conditions.
• Simplified Wiring: Includes 30-inch insulated leads to streamline integration into existing industrial HVAC control schemes.
• Certified Performance: UL and CSA Listed to ensure compliance with strict safety standards for commercial and industrial refrigeration.

Common Questions

How do I test if the MARS 32635 is functioning correctly?
Using a multimeter, you should check for continuity and measure the resistance of the heating element. Given it is a 70W, 480V component, the resistance should remain consistent with its power rating; an open circuit or infinite resistance indicates the element has failed and requires immediate replacement.

Can I use this heater for a compressor that originally used a lower wattage?
It is critical to match the wattage to the compressor manufacturer's specifications. A 70W heater is sized to maintain proper oil viscosity for specific compressor frames; under-sizing may lead to flooded starts, while over-sizing could potentially overheat the oil and degrade its lubricating properties.

Is this heater powered continuously or cycled?
Typically, crankcase heaters like the 32635 should be energized via auxiliary contacts during the compressor's "off" cycle. This ensures the oil is pre-heated and free of refrigerant whenever the system is called to start. Consult your specific wiring diagram to confirm the heater is de-energized while the compressor is running to maximize efficiency.

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.