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38" WC (Water Column) pressure rating
It is a standard practice for technicians to ensure all local codes and labeling requirements are followed after the LP spring installation
Common Questions: Will the 20197313 replace my metal-cased 20197306
the component must be replaced once it has been activated by excessive heat
ensuring the venting system is clear before allowing the gas valve to open
Lennox 25J30 Limit Switch 38" WC (Water Column) pressureThe Lennox 25J30 is a heavy duty, disc style OEM furnace limit switch engineered for high precision thermal monitoring in residential and light commercial air handlers. This SPST normally closed control is a direct drop in replacement for the Lennox 25J3001 and is critical for maintaining safe plenum temperatures. Designed with an automatic reset function, the switch triggers a circuit break when temperatures reach the 155F cutout point, effectively