Lennox 12L46 Pressure Switch 321894-706 provided the ambient temperature at

provided the ambient temperature at the actuator does not exceed 150°F

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

05" WC setpoint

setting indicated on the scale

Lennox 12L46 Pressure Switch 321894-706 provided the ambient temperature atThe 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