If the third and fourth digits are 13 or higher

The high-pressure side is rated up to 450 PSI

the handle's pivot points are reinforced to withstand the constant thermal stress and mechanical cycling found in 24/7 operations

featuring a non-mechanical seat-to-disc alignment that facilitates reliable automatic reseating after each discharge

this 24V combined gas control integrates a manual valve

Trane SWT2954 Switch 320819-301 If the third and fourthThe Trane SWT2954 Switch is a critical low pressure safety switch engineered for high precision refrigerant monitoring in commercial and residential HVAC systems. Designed with a 1 4" flare connection, this OEM Trane replacement part features a calibrated operating range of 85 psi open (cut out) and 65 psi close (cut in). As a veteran technician knows, maintaining these exact setpoints is vital for compressor protection, preventing damage caused by