Lennox 33W19 Pressure Switch 324846-701 Its robust construction ensures stable

Its robust construction ensures stable performance against voltage fluctuations and mechanical vibration

The Single Pole Double Throw (1 NO / 1 NC) contact allows you to toggle between two separate loads or use the normally closed contact for applications that require the circuit to open during a timed event

preventing water hammer and protecting downstream appliances

Always verify that your system firmware is up to date to ensure seamless communication with new electronic expansion valve drivers

this assembly is designed for systems where external circuit protection is already provided

Lennox 33W19 Pressure Switch 324846-701 Its robust construction ensures stableThe Lennox 33W19 Pressure Switch is a high precision, 2 stage dual pressure switch engineered for critical safety monitoring in gas furnaces and air handling units. This OEM component (part number 101599 03) features two independent, factory calibrated set points to ensure the inducer motor is moving the correct volume of air for safe combustion. The high stage set point is 1. 37" W. C. while the low stage set point is 0. 30" W. C., providing accurate