Lennox 11X74 Expansion Valve 319847-401 and HC21ZE117 without mounting bracket

and HC21ZE117 without mounting bracket adjustments

For contractors performing furnace control board troubleshooting

This industrial-grade AC motor (cross-reference 116H02) provides the necessary torque and reliability to restore optimal airflow across the condenser coils

rated for up to 20 hp at 480V (UL) or 15 kW at 400V (AC-3)

Is a minimum pressure drop required for this valve to trip

Lennox 11X74 Expansion Valve 319847-401 and HC21ZE117 without mounting bracketThe Lennox 11X74 Expansion Valve is a critical refrigerant metering device engineered for high performance R410A residential and light commercial systems. As a thermostatic expansion valve (TXV), it provides precise superheat control by modulating flow based on evaporator load. This ensures the Lennox evaporator coil operates at peak efficiency while providing essential compressor protection against liquid floodback. This OEM Lennox part is designed