For technicians performing furnace pilot light repair

This SPST (Single Pole Single Throw) snap-acting control provides precise regulation within a 140°F to 550°F temperature range

Operational Efficiency: Reduces friction to help maintain the energy-efficient performance of your commercial HVAC system

which is the standard orientation for many Trane condenser fan assemblies

For installations above 2

Trane CNT0532 Fan Limit 322838-752 For technicians performing furnace pilotThe Trane CNT0532 (often superseded by CNT00532) is a heavy duty OEM replacement fan limit switch designed for precision thermal regulation in residential and light commercial air handlers.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