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The burner tubes feature a precision-stamped design to maintain the correct air-to-gas ratio for consistent thermal output
Specifically optimized for Siemens GIB131
ensuring air quality and operational safety
maintaining the factory-specified pressure drops and shifting characteristics required for system efficiency
setting indicated on the scale
Lennox 12L46 Pressure Switch 321894-706 The burner tubes feature aThe Lennox 12L46 Pressure Switch is a critical safety component designed for precise furnace air pressure monitoring in Lennox heating systems. Featuring a factory set actuation point of . 40" wc (water column) and a 0. 55" wc reset, this SPST (Single Pole Single Throw) switch ensures the inducer motor is generating sufficient draft before allowing the ignition sequence to proceed. As a veteran grade OEM Lennox replacement part, it is engineered to
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