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Armstrong 4SCU20LX | Up to 20 Seer Variable Capacity Air Conditioner 4.0 TONS

SKU: 4SCU20LX148P (1.371003)

$6,600.00 + HST

from $70.92/month

Including Installation


  • Enhanced tube-and-fin coil design featuring MHTTM Technology
  • Raised coil prevents debris from impeding airflow


Designed to perform in temperatures up to 125 degrees F


10 year limited warranty on compressor. 10 year limited warranty on all parts, extended warranty available*


  • 45-degree offset gauge ports for easy service
  • Service valves positioned for quick installation and service
  • Variable speed condenser fan motor
  • Swept wing fan blade for quiet operation
  • Factory installed crankcase heater
  • Factory installed high and low pressure switches
  • Thread-on pressure switches for simple, quick service
  • Fan orifice for smoother airflow and sound level reduction
  • Specialized sensors monitor ambient, liquid line, and coil temperatures for precision system control
  • Charged for 15 feet of line set
  • Requires Comfort SyncTM thermostat and a Comfort SyncTM enabled matching indoor unit


  • Inverter-driven Scroll Compressor for true variable capacity operation, precision environmental control, and exceptional energy savings
  • R410A refrigerant
  • Heavy-duty compressor sound blanket for quiet operation
  • Internally protected against high temperature motor overload conditions


  • Individual metal louvered panels are easily removable for coil cleaning and service
  • Specialized corner-mounted controls for easy service
  • Baked polyester paint finished over galvanized steel for maximum durability
  • Removable PVC coated wire fan discharge grill
  • Removable service panel for internal access



4.0 Ton

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