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Voltage Precision: Optimized 277V/120V conversion reduces fluctuations that can damage sensitive control boards
High Flow Capacity: The 3/4" orifice ensures minimal pressure drop across the valve
ensuring the HVAC secondary heat exchanger or primary bundle maintains consistent pressure switch ratings and airflow performance under high-fire conditions
utilizing a standard 48 frame housing for seamless installation
Lennox 47L19 Limit Switch 320074-702 Voltage Precision: Optimized 277V/120V conversionThe Lennox 47L19 Limit Switch is a critical OEM replacement part designed for precise thermal regulation in residential and commercial furnaces. As an auto reset limit switch, this 36T series disc style component operates on a normally closed circuit, ensuring the burner assembly remains functional only within safe operating parameters. When the internal plenum temperature reaches the 185F high limit threshold, the switch opens, breaking the circuit