Description
Lennox 93M10 Crankcase Heater Overview
The Lennox 93M10 is a 70-watt, 600-volt crankcase heater engineered to protect refrigeration and air conditioning compressors from refrigerant migration during off-cycle periods. By maintaining the compressor oil at an elevated temperature, this heater prevents liquid refrigerant from mixing with the lubricating oil — a condition that can cause severe compressor damage on startup. Designed as a genuine Lennox OEM replacement part, the 93M10 delivers dependable, long-lasting performance in demanding HVAC applications.
Key Features
- Rated at 70 watts for efficient, targeted crankcase warming
- 600-volt operating voltage for compatibility with commercial HVAC systems
- Prevents refrigerant migration into compressor oil during off cycles
- Reduces risk of compressor damage caused by liquid slugging on startup
- Genuine Lennox OEM replacement part (SKU: 93M10)
- Engineered for reliable, long-service-life performance
Why Use a Crankcase Heater?
During extended off cycles — especially in cold ambient conditions — refrigerant can migrate into the compressor crankcase and mix with the lubricating oil. When the compressor restarts, this refrigerant-oil mixture can cause oil foaming, loss of lubrication, and potentially catastrophic compressor failure. A crankcase heater like the Lennox 93M10 keeps the oil warm enough to prevent refrigerant absorption, extending compressor life and reducing costly service calls.
Specifications
- SKU: 93M10
- Brand: Lennox
- Wattage: 70W
- Voltage: 600V
- Type: Crankcase Heater
Application
- Commercial and residential HVAC compressors
- Air conditioning and refrigeration systems requiring compressor protection
- Lennox equipment requiring OEM crankcase heater replacement
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