Carrier HD52AE137 Motor 318423-701 The Lennox 19L57 Pressure Switch

The Lennox 19L57 Pressure Switch is a critical OEM safety component engineered for precise airflow monitoring in residential and commercial furnaces

Key Benefits: Precise Compatibility: Direct OEM replacement for Heil Quaker

this unit eliminates the mechanical failure points found in traditional float-style controls

this manual reset limit switch alternative ensures that the heat exchanger does not exceed safe operating parameters

and 1/4" NPT connection match your current specifications

Carrier HD52AE137 Motor 318423-701 The Lennox 19L57 Pressure SwitchThe Carrier HD52AE137 is a heavy duty 1 HP condenser fan motor designed for high performance service in commercial and residential HVAC systems. Operating at 208 230V and a rated speed of 1050 RPM, this 48 frame motor features a CWLE (Clockwise Lead End) rotation. This OEM Carrier replacement motor is engineered with a permanent split capacitor (PSC) design to ensure consistent torque and efficiency under high static pressure conditions. Built for