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The 591 bill of materials typically includes a sight glass and Rotalock connections (1-1/4" suction
Thermal Security: Integrated thermal overload protection prevents burnout during high-torque or restricted airflow conditions
The oversized 3-1/8 inch non-flutter gauges provide high-contrast scales for superior legibility and precision compared to standard small-orifice gauges
the York S1-025-41091-000 is the current manufacturer-designated replacement for several legacy part numbers
if the circuit remains open despite pressure being above 250 PSI
Trane SWT4049 Pressure Switch 321702-401 The 591 bill of materialsThe Trane SWT4049 High Pressure Switch is a critical safety component designed for precise refrigerant circuit monitoring in residential and light commercial HVAC systems. As a genuine OEM Trane replacement part, this pressure actuated switch is engineered to protect the compressor from catastrophic failure by interrupting the electrical circuit when discharge pressure exceeds safe operating parameters. Utilizing a factory calibrated set point, the
US$ 150.00
US$ 272.50
US$ 48.89
US$ 143.99