Lennox 18J74 Low Ambient Pressure Switch HVAC Replacement Part voomi_id_10439 Designed for optimal performance with

Designed for optimal performance with Lennox HVAC units

and diagnostic reporting

It has a current input range of four to twenty milliamps and a factory output range from three to fifteen psi

Part Number: 13X141/2X36R8

Lennox 18J74 Low Ambient Pressure Switch HVAC Replacement Part voomi_id_10439 Designed for optimal performance withProduct Description The Lennox 18J74 Low Ambient Pressure Switch is engineered for optimal performance in controlling HVAC system pressure. Tailored to meet the demands of heating, ventilation, and air conditioning systems, especially in lower ambient temperatures, this switch maintains system efficiency and stability. Designed for compatibility with a wide range of Lennox models. Ensures reliable operation and longevity in low ambient conditions.