Description
Lennox 93M05 Belt-Type Crankcase Heater Overview
The Lennox 93M05 is a belt-type crankcase heater engineered to protect compressor oil from refrigerant migration during off-cycle periods. By maintaining a consistent warmth around the compressor crankcase, this heater helps prevent liquid refrigerant from mixing with the oil — a leading cause of compressor damage and premature failure. It is an essential component for any system operating in low ambient temperature environments or subject to extended off-cycle periods.
Key Features
- Belt-type design wraps securely around the compressor crankcase for reliable, consistent heat transfer
- Operating voltage: 240 Volts
- Power output: 40 Watts
- Compatible compressor diameter: 7″ to 8″
- Helps prevent refrigerant migration into compressor oil during off cycles
- Reduces risk of compressor slugging and oil dilution at startup
- Genuine Lennox OEM replacement part (SKU: 93M05)
Application & Compatibility
The 93M05 is designed as a genuine Lennox OEM crankcase heater replacement, ensuring a precise fit and reliable performance in compatible Lennox systems. The flexible belt-type construction accommodates compressor housings with diameters ranging from 7″ to 8″, making it suitable for a range of residential and light commercial compressor applications.
Why Crankcase Heaters Matter
Crankcase heaters are a critical line of defense for compressor longevity. When a compressor sits idle — especially in cooler conditions — refrigerant can migrate into the crankcase oil. Upon startup, this diluted oil provides inadequate lubrication, leading to accelerated wear or catastrophic failure. The Lennox 93M05 keeps the crankcase warm enough to prevent this migration, protecting your investment and extending equipment life.
Specifications
- SKU: 93M05
- Brand: Lennox
- Type: Belt-Type Crankcase Heater
- Voltage: 240V
- Wattage: 40W
- Compatible Diameter: 7″ – 8″
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