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functioning within a defined 120-160°F temperature range to prevent heat exchanger damage or unsafe operating conditions
Safety Certified: CSA-rated components ensure compliance with field safety standards for burner assemblies
Engineered to manage critical HVAC ignition sequences
or safety interlocks simultaneously with the primary load
and sophisticated energy management systems
Lennox 20J83 Limit Switch functioning within a defined 120-160°FThe Lennox 20J83 Limit Switch (Model 20J8301) is an essential HVAC OEM replacement part engineered for precise thermal management in high efficiency furnaces. This single pole, single throw (SPST) automatic control is factory calibrated to actuate at 165F, effectively breaking the circuit to prevent heat exchanger damage or unsafe operating conditions. Once the plenum temperature cools to 135F, the switch automatically resets, restoring normal system
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