Lennox 93J39 Limit Switch and other common HCFC and

and other common HCFC and HFC refrigerants

It is specifically designed for HVAC pressure switch replacement in low-static applications and functions reliably at elevations up to 6

this Robertshaw replacement ignitor offers the precise microamp feedback signal required by modern control boards to maintain safe combustion cycles

Thermal Accuracy: High-conductivity housing ensures rapid temperature response for building control system monitoring

Lennox 93J39 Limit Switch and other common HCFC andThe Lennox 93J39 limit switch is a critical safety component designed for precise thermal management in high efficiency HVAC systems. This 210F CO auto limit switch acts as a primary safety boundary, effectively breaking the electrical circuit when the heat exchanger plenum reaches the designated 210 degree Fahrenheit threshold. Engineered for seamless field replacement, the 93J39 is identical to 93J3901, ensuring zero latency compatibility for