Lennox 80K44 Pressure Switch

The Lennox 80K44 Pressure Switch (around 0.4 lbs) is a vital safety component designed for Lennox gas furnaces (verification for compatibility with other brands using similar pressure switches is necessary). This compact switch acts as a safety guard by monitoring gas pressure within the furnace. The 80K44 continuously monitors the gas pressure flowing to the burners. If the gas pressure falls below a safe operating range, the switch triggers an automatic shut-off of the gas supply. This prevents improper combustion and potential hazards like gas leaks or incomplete burning. The Single Pole, Double Throw (SPDT) design allows the switch to complete two separate circuits based on the pressure reading: one for normal operation and another for shut-off in case of pressure issues.