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the stainless steel composition is designed to withstand the thermal cycling
ideal for fine-tuning system performance
Avoid the risks of "close-enough" aftermarket sizing by sticking with Source 1 technical specifications for your HVAC burner maintenance
the manual reset design requires a qualified technician to troubleshoot and clear the underlying fault before the system can be restarted
Lennox 73W20 Limit Switch 323613-751 the stainless steel composition isThe Lennox 73W20 Limit Switch is a critical safety component designed for precise thermal regulation within Lennox residential furnaces and HVAC systems. As an OEM Lennox replacement part, this L175 30F limit control features a fixed set point, engineered to open the electrical circuit at 175F and automatically reset when temperatures drop to 145F. This SPST (Single Pole Single Throw) switch utilizes a 5 inch stilt mounting insertion depth to monitor
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