the X8799 socket should be inspected for signs of yellowing

For installations above 2

What are the signs that my TP-55A inducer needs replacement

10 Degree Differential

is engineered for critical HVACR applications

Trane CNT0532 Fan Limit 322838-752 the X8799 socket should beThe Trane CNT0532 (often superseded by CNT00532) is a heavy duty OEM replacement fan limit switch designed for precision thermal regulation in residential and light commercial air handlers. This A R Fan Limit is calibrated for high performance safety, featuring a critical 150F Open (Op) and 130F Close (Cl) threshold. By monitoring supply plenum temperatures, the CNT0532 prevents the heat exchanger from reaching unsafe levels during heating cycles