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Pressure-relieved design ensures consistent flow regulation regardless of inlet pressure fluctuations
making it a reliable HVAC furnace part for contractors requiring high-performance airflow verification and field-proven reliability
If heating elements remain energized after the thermostat is satisfied
Always verify your specific model and serial number
Technicians often encounter ignition lockout codes when the inducer motor fails to pull a sufficient vacuum or when the switch diaphragm has exceeded its service life
Lennox 13Y55 Coil Assembly 318172-701 Pressure-relieved design ensures consistent flowThe Lennox 13Y55 Coil Assembly is a specialized 4 5 ton OEM HVAC replacement coil engineered for high capacity heat transfer in commercial and industrial Lennox systems. As a genuine Lennox 13Y55 component, this assembly ensures direct compatibility and physical fitment for maintaining factory specified static pressure and airflow requirements. This coil, also identified as part number 13Y5501, features precision engineered fin spacing and circuiting
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