Trane SWT4049 Pressure Switch 320788-704 Pressure Stability: Restores high-sensitivity response

Pressure Stability: Restores high-sensitivity response to maintain consistent PSI settings in demanding air-line applications

and plug assembly for a full Honeywell V5011N1073 rebuild

this is a standard choice for technicians replacing older pneumatic wall stats where a larger footprint was previously used

offering a significant upgrade over traditional silicon carbide components

which compromises the seal’s cooling

Trane SWT4049 Pressure Switch 320788-704 Pressure Stability: Restores high-sensitivity responseThe 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