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Why is clockwise (CW) rotation important
The FF4H is a Single Pole Single Throw (SPST) device
OEM Compatibility: A direct Lennox 27K7901 replacement
reducing downtime during critical maintenance windows
Lennox 73K17 Limit Switch 318172-701 Why is clockwise (CW) rotationAs an HVAC technician, you know that a failed limit switch is a primary cause for furnace short cycling and overheating. The Lennox 73K17 is a genuine OEM limit switch designed specifically for Lennox, Allied, Armstrong, and Ducane heating units. This SPST normally closed high limit control features a 7 inch insertion length, making it compatible with various air handlers and furnaces, such as the G23Q5 6 series. It operates as an auto reset limit
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