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Safety Optimized: Features integrated safety lockout timing to protect the heat exchanger and prevent unburned fuel accumulation
Always verify phase and voltage at the disconnect before installation
ensuring the pan sits correctly under the A-coil
this factory-specified assembly provides the exact fit and 1-inch connection required for optimal drainage
Does this burner require an air shutter adjustment
Lennox X4138 Pre-Filter L99H008 Safety Optimized: Features integrated safetyThe Lennox X4138 Pre Filter is a critical OEM replacement component engineered for high performance HEPA bypass air filtration systems. Specifically designed for compatibility with Lennox Healthy Climate HEPA 40 and HEPA 60 units, this 15 inch carbon pre filter acts as the first line of defense in a three stage purification process. By capturing large diameter airborne particulates and debris, it prevents premature loading of the primary HEPA