Pay in 4 interest-free payments of $1475.00 Learn more
Ships within 48 hours · Estimated delivery Sep 16 - Sep 21
Proper installation of this high limit thermal cutout ensures the system adheres to strict thermal safety dictates while protecting high-value internal components from heat-induced fatigue
Experienced HVAC contractors recognize the Lennox 66J78 Limit Switch as a critical safety component for maintaining furnace integrity and preventing heat exchanger damage
Precise Thermal Calibration: Fixed 165°F trip and 135°F reset points ensure the Lennox HVAC system operates within OEM design specifications
The unit features 2-wire thermostat control and includes an integrated SPDT auxiliary switch for status feedback or interlocking equipment
Reznor 122840 Pilot Plate Els PW 17895 Proper installation of this highReznor 122840 Pilot Plate
US$ 126.00
US$ 160.00
US$ 106.22
US$ 152.50
US$ 303.75
US$ 64.00
US$ 34.99
US$ 110.00