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Key Technical Benefits High Flow Capacity: The 4
receive the precise vacuum signal required for the heating cycle to commence
ensuring the pilot burner assembly performs under continuous thermal stress
providing the static pressure necessary to overcome ductwork resistance while maintaining efficient airflow
The Lennox 13W51 thermostatic expansion valve is a precision-engineered 3-ton TXV designed specifically for R-22 refrigerant systems
Lennox 93W73 Limit Switch 321894-709 Key Technical Benefits High FlowThe Lennox 93W73 Limit Switch is a critical safety component designed for precise thermal regulation within residential gas furnaces and air handlers. Engineered as a normally closed thermal switch, this fixed temperature limit control is calibrated to open at 140F, effectively interrupting the burner circuit if the heat exchanger temperatures exceed safe operational parameters. This specific Lennox furnace replacement part features a high reliability
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