Technicians should verify the furnace model number and serial number against the parts list to confirm the specific collector box revision required

and CXLB with sizes ranging from 30 to 105

It is calibrated to an open on rise (cut-out) setpoint of 280°F to prevent thermal overload and a close on fall (cut-in) setpoint of 250°F for automatic circuit restoration

How do I know if my Lochinvar 100277765 Thermal Switch has tripped

Conbraco 19-KFEA-100 Valve R-410A Technicians should verify the furnaceThe Conbraco 19 KFEA 100 is an industrial grade ASME Section I steam pressure relief valve engineered for power boiler applications and high pressure steam systems. This 1" MNPT inlet x 1 1 4" FNPT outlet valve is factory set at 100 PSI, providing a discharge capacity of 1,798 lbs hr. Built with a rugged brass trim and a high performance Teflon (PTFE) seat, it ensures a positive seal and resistance to scale buildup. The National Board certified design