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Safety Monitoring: Advanced flame rectification technology continuously monitors for pilot and main burner flame stability to prevent hazardous conditions
or no-flame conditions despite a successful pilot or hot surface igniter cycle
Whether you are performing HVAC system diagnostics or a routine boiler maintenance cycle
High-Capacity Throughput: The 3/4" x 3/4" NPT sizing supports the high BTU requirements of 200k to 400k units without significant pressure drops
Detailed HVAC part compatibility is maximized through its straight-through design and 14" WC maximum inlet pressure tolerance
Trane SWT3211 Pressure Switch 321702-401 Safety Monitoring: Advanced flame rectificationThe Trane SWT3211 Pressure Switch is an essential safety component engineered for high pressure monitoring in commercial and residential HVACR systems. As a veteran grade OEM replacement part, this switch is designed to protect the compressor from damage caused by excessive head pressure. The SWT3211 features a specific 650# open and 500# close setpoint, ensuring the system shuts down when pressure exceeds safe limits and resets only once pressure