ensuring reliable operation under extreme conditions

Is this a genuine OEM component

It supports time-temperature defrost logic

As a genuine OEM replacement part for Daikin Applied and legacy McQuay air handling units and chillers

While the kit includes the mechanical clamp and hardware

Lennox 73K20 Limit Switch 318172-701 ensuring reliable operation under extremeThe Lennox 73K20 Limit Switch is a critical safety component designed for furnace high limit protection and temperature regulation in residential HVAC systems. As an OEM Lennox replacement part, this switch features a 3 inch insertion depth and operates on a 130 160F automatic reset logic. It is engineered to monitor heat exchanger temperatures, maintaining a normally closed circuit that opens upon reaching the 160F high limit threshold to prevent