538FR Evolution Series

Premium comfort delivered to your wall of choice. As part of the F High Wall Ductless System, this Evolution System heat pump delivers top-of-the-line performance for a converted space or room addition. The perfect outdoor unit for your system, this model features inverter-controlled operation for quiet, money-saving efficiency.

Features and Benefits

  • 100% heating capacity at 5°F
  • Heating capacity is 90% when temperatures fall as low as -22°F
  • Inverter compressor
  • Up to 30.5 SEER cooling
  • Up to 10.3 HSPF heating efficiency
  • Select sizes are ENERGY STAR certified based on indoor unit pairing
  • Available in 208/230V
  • Sizes ranging from 09 to 18
  • Quiet outdoor sound operation, as low as 53 decibels
  • Piping length up to 82ft.
  • Built-in basepan heater
  • 10-year parts limited and 10-year compressor limited warranties to the original purchasing owner upon timely registration (certain conditions apply)
  • Compatible unit: 619FB High Wall


  • Energy Efficiency- Up to 30.5 SEER/15.8 EER/10.3 HSPF
  • Meets ENERGY STAR guidelines for high efficiency

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