Carrier TT2-001 Test Tube 30067439-890 The 2 degree differential is

The 2 degree differential is factory-set to ensure high-cycle reliability and prevent rapid equipment cycling

effectively protecting the motor

providing a rugged interface for contractors who require a "no-frills" knob adjustment without a thermometer or selector switch

meaning it completes the circuit to start cooling or fan systems as the detected temperature climbs above the setpoint

For technicians servicing commercial refrigeration or rooftop units

Carrier TT2-001 Test Tube 30067439-890 The 2 degree differential isEnsure system longevity and prevent compressor failure by utilizing the Carrier TT2 001 Test Tube (Blue) for precise refrigerant analysis. These TotalTest replacement tubes are engineered specifically for detecting harmful acid and moisture levels in HVACR systems without the need for messy oil sampling. As a direct replacement for the TT 2001, the TT2 001 is compatible with a wide range of refrigerants, providing dual acid and moisture testing for