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The package contains a core assembly
Replacing a worn or drifting switch with this factory-spec component is essential for restoring the HVAC high limit safety standards of the original equipment
this 664593 distributor assembly is widely used in Nordyne air handlers and heat pumps requiring a 3/8" inlet
If your sequence of operation requires a different range
Trane SWT3982 Switch 321894-709 The package contains a coreThe Trane SWT3982 is a critical high limit reverse flow switch designed for precision thermal monitoring in light commercial and residential HVAC systems. Engineered for specific setpoints, this bimetal snap action switch features a 105F opening temperature and resets on a temperature fall at 95F. This 10 degree differential ensures stable cycling and prevents short cycling of the compressor or heater banks during low airflow conditions. Built to