this 150 PSI relief valve features a thermal sensing element calibrated to activate at 210°F

The 18-inch leads should be connected via a sealed conduit to maintain the explosion-proof and watertight integrity of the NEMA-rated enclosure

the 45L14 is a standard component for many Lennox LGH and LGC series rooftop units where LP conversion or maintenance is required

preventing common localized failures like nuisance lockouts or short-cycling

For technicians performing a York AC repair

Aaon R54600 Limit Switch 319848-301 this 150 PSI relief valveThe Aaon R54600 Limit Switch is a critical safety component designed for high limit temperature monitoring in commercial HVAC systems. This L280 30F 3" limit switch features a 280 degree Fahrenheit cutout and a 30 degree differential, ensuring precise thermal protection for heat exchangers and blower assemblies. Engineered for Aaon rooftop unit parts replacement, this SPST (Single Pole Single Throw) fixed temperature control operates on an open on