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The Lennox 43K53 Flame Sensor is a critical OEM safety component engineered for precise flame rectification in gas-fired heating systems
ensuring consistent fan-on and fan-off delays to optimize airflow temperature and system efficiency
this Maxitrol spring upgrade ensures your low pressure gas system operates within the required technical parameters without compromising seat lockup performance
providing the necessary leverage for precise air volume control
York S1-024-35799-000 Auxiliary Switch The Lennox 43K53 Flame SensorThe York S1 024 35799 000 Auxiliary Switch is a critical HVAC contactor accessory designed for field installation in compatible 1 pole and 2 pole contactor assemblies. Featuring a dual contact configuration of 1 Normally Open (NO) and 1 Normally Closed (NC), this switch serves as a reliable interface for pilot duty signaling and control circuit interlocking. Often identified as 208T11 in technical cross references, it provides precise feedback on the
