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The most common causes are an incorrect voltage supply
it features a low-pressure range of 15" Hg to 100 PSI and a high-pressure range of 100 to 450 PSI
maintaining the correct superheat is critical for protecting the compressor and ensuring the evaporator coil operates at peak efficiency
oil-free refrigerant compatibility
a clogged liquid line strainer
Trane SWT3273 Pressure Switch Freon The most common causes areThe Trane SWT3273 Pressure Switch is a mission critical high pressure cutout switch engineered for heavy duty commercial and residential integrated HVAC systems. Designed as a normally closed SPST safety device, this switch is a primary defense mechanism against system rupture and compressor failure. It features a precise 650 PSI opening point to interrupt the control circuit when head pressure exceeds safe limits, with a 500 PSI closing point for