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the S1-363-90117-700 acorn design provides essential protection for the bolt shank against rust and physical damage
which is the standard for Honeywell and Barber-Colman linkage kits
If the vacuum is sufficient but the SPNO contact remains open
this component is critical for isolating the refrigerant charge during system maintenance
Lennox 18J37 Limit Switch the S1-363-90117-700 acorn design providesThe Lennox 18J37 Limit Switch is a critical safety component engineered for high performance thermal regulation in residential and light industrial furnaces. As a normally closed disc style limit control, this genuine OEM Lennox replacement part is specifically designed to prevent heat exchanger damage by interrupting the burner circuit if internal temperatures exceed safety thresholds. Featuring a yellow color coded sleeve for rapid field
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