Lennox 34M72 - (LB-101123A) Low Ambient Control Kit for PSC Fan AC Units
Ensure reliable year-round cooling performance with the Lennox 34M72 Low Ambient Control Kit (LB-101123A), designed specifically for Lennox air conditioning units utilizing PSC (Permanent Split Capacitor) fan motors. This factory-authorized accessory enables operation of the condenser unit in cooler outdoor temperatures by regulating fan cycling based on ambient conditions.
Key Features:
- Optimized for PSC Fan Motors – Engineered to integrate seamlessly with Lennox AC systems that use permanent split capacitor fan motors.
- Extended Cooling Range – Allows air conditioning units to operate effectively during low outdoor temperatures, ideal for applications like server rooms or specialty spaces needing year-round cooling.
- Pressure-Sensing Control – Uses system pressure feedback to cycle the condenser fan motor, maintaining proper refrigerant pressure and preventing coil freezing.
- Reliable Performance – Factory-tested for compatibility and performance, ensuring safe and efficient low ambient operation without compromising equipment longevity.
- Complete Installation Kit – Includes all necessary components and wiring instructions for straightforward field installation.
- Ideal for residential or light commercial Lennox units requiring air conditioning during cooler months.
- Commonly used in data centers, telecom rooms, or climate-sensitive spaces that demand continuous temperature regulation.
- Part Number: 34M72
- Lennox Catalog Number: LB-101123A
- Control Type: Pressure-activated fan cycling
- Motor Compatibility: PSC (Permanent Split Capacitor) condenser fan motors
- Installation: Field-installed accessory; wiring and mounting hardware included
Enhance your Lennox cooling system’s flexibility and maintain comfort even in colder weather. The 34M72 Low Ambient Control Kit ensures consistent performance when outdoor temperatures drop.
Available now at Beenimax.com — your trusted source for genuine Lennox parts.


