Lennox 93M13 Belt

Preventing liquid refrigerant migration during the off-cycle is a critical requirement for maintaining compressor longevity, especially in commercial rooftop units and split systems. The Lennox 93M13 is a heavy-duty, belt-type crankcase heater designed to maintain optimal oil temperature within the compressor housing. By keeping the lubricant warm, this 70W crankcase heater ensures that refrigerant remains in a vapor state, eliminating the risk of oil dilution and slugging during cold starts. Engineered for a broad range of applications, this heater features a flexible 7" to 8.5" diameter adjustment, allowing it to fit snugly around the base of major compressor brands used in Lennox, Armstrong, and Ducane equipment. This 210-240V HVAC heater comes equipped with 14-inch leads for straightforward integration into the existing control circuit, providing reliable thermal protection that veteran technicians rely on to reduce mechanical wear and prevent premature compressor failure in demanding environments.

• Optimized Oil Viscosity: Specifically designed to maintain heat in the crankcase, preventing refrigerant from mixing with the oil and compromising lubrication.
• Universal Belt Fit: The adjustable tension design fits compressor diameters from 7 inches to 8.5 inches, ensuring maximum surface contact and heat transfer.
• OEM Performance: Manufactured to Lennox 93M13 specifications, this part serves as an exact replacement for Lennox 100499-10 components.
• Durable Construction: Built to withstand the high-vibration environment of a running compressor while providing a consistent 70-watt heat output.

• What voltage is the Lennox 93M13 heater rated for? This unit is built for 210V to 240V systems, typical of commercial and heavy residential HVAC applications.
• Will this fit my specific compressor? If your compressor housing diameter is between 7" and 8-1/2", this belt-type heater will provide the necessary coverage and tension.
• Why is a crankcase heater necessary for outdoor units? During the off-cycle, refrigerant migrates to the coldest part of the system (the compressor). Without a crankcase belt heater, the liquid can cause "slugging," which destroys internal valves.

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.