Description
The Lennox 15X40 is a 40-watt, 240-volt crankcase heater engineered to protect the compressor in Lennox HVAC systems from the damaging effects of refrigerant migration and liquid slugging.
Crankcase heaters are a critical compressor protection component. During off-cycles, refrigerant can migrate into the compressor oil sump, diluting the lubricant and causing catastrophic wear or failure on startup. By maintaining a constant low-level heat around the compressor crankcase, the 15X40 keeps the oil temperature above the refrigerant’s condensation point, ensuring the lubricant retains its viscosity and protective properties.
Key Features
- Genuine Lennox OEM replacement crankcase heater
- Rated wattage: 40W
- Operating voltage: 240V
- Prevents refrigerant migration into compressor oil during off-cycles
- Reduces risk of compressor liquid slugging on startup
- Extends compressor service life and protects system reliability
- Direct OEM replacement for compatible Lennox equipment
Why Crankcase Heaters Matter
In cooling systems, especially those operating in colder ambient conditions or subject to extended off-cycles, refrigerant vapor can condense and accumulate in the compressor crankcase. When the system restarts, this refrigerant-oil mixture can cause severe mechanical damage. The Lennox 15X40 crankcase heater eliminates this risk by keeping the compressor warm and ready for reliable, damage-free operation.
Application
- Designed for use with compatible Lennox air conditioning and heat pump systems
- Consult Lennox equipment documentation or your distributor to confirm compatibility with your specific model
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