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normally closed solenoid valve designed for demanding refrigeration and air conditioning applications
making them the standard choice for low-level cutoff and pump-dry protection
This part number refers to the electrode for housing
and all necessary o-rings for the stem
Lennox 33W19 Pressure Switch R-22 normally closed solenoid valve designedThe 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