Lennox 79J73 Control Limit Refrigerant or undersized ductwork causing the

or undersized ductwork causing the unit to overheat

and the necessary rotolock gaskets and solder sleeves for the suction and discharge lines

Optimized Combustion: Restores factory-spec air-to-fuel ratios for clean

while the LED status indicator provides immediate visual feedback on movement and operational status

reducing the variety of spare parts needed in inventory

Lennox 79J73 Control Limit Refrigerant or undersized ductwork causing theWorking with high static environments or Lennox rooftop units requires a manual reset limit switch you can depend on. The Lennox 79J73 Control Limit is a critical safety component designed to monitor discharge air or internal heat exchanger temperatures. When temperatures exceed the calibrated threshold, this high temperature limit switch breaks the 24V control circuit, immediately shutting down the burners or heating elements to prevent catastrophic