Description
The Lennox 92L15 is an OEM replacement L160-40F high limit switch engineered to protect furnaces and heating systems from dangerous overheating conditions. When supply air temperatures exceed the rated threshold, this safety control interrupts the burner circuit, preventing heat exchanger damage and ensuring safe system operation.
How It Works
The L160-40F designation defines the switch’s operating parameters: it opens (trips) at 160°F to shut down the burner, and features a 40°F differential, meaning it automatically resets and closes at approximately 120°F once the system has cooled to a safe operating temperature. This automatic reset design allows normal furnace operation to resume without manual intervention once the overheat condition has cleared.
Key Features
- OEM Lennox replacement part — direct-fit for compatible Lennox furnace models
- Opens at 160°F to protect against furnace overheating
- 40°F differential — automatically resets at approximately 120°F
- Interrupts burner circuit on high-temperature fault for safe system shutdown
- Durable construction for reliable, long-term performance
- Essential safety component for residential and light commercial heating systems
Application
Designed as a direct OEM replacement for Lennox furnaces requiring the L160-40F limit switch. Always verify compatibility with your specific furnace model before installation. Consult equipment documentation or a qualified HVAC technician to confirm the correct replacement part for your application.
Specifications
- Brand: Lennox
- Part Number: 92L15
- Switch Type: High Limit
- Open Temperature: 160°F
- Differential: 40°F
- Reset Temperature: Approximately 120°F
- Reset Type: Automatic
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