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this black box ignitor assembly provides the high-voltage spark necessary for consistent burner ignition and reliable system startup
Technicians should retain the existing mounting bracket from the original Trane furnace pressure switch during replacement
OEM Standards: Manufactured by Nortek Global HVAC to ensure direct fitment and performance matching with Intertherm
This applied filter element and spring kit provides the necessary tension and high-efficiency media required to maintain differential pressure across the oil circuit
Lennox 80W58 Pressure Switch 340793-762 this black box ignitor assemblyFor service calls involving intermittent furnace shutdowns or inducer blower faults, the Lennox 80W58 Pressure Switch is the direct OEM replacement engineered to maintain system integrity. This single stage air pressure switch features a precise . 75" WC factory setpoint, critical for verifying proper draft and venting before the ignition sequence begins. Designed for compatibility with high efficiency Lennox, Armstrong, and Ducane gas furnaces, this