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Variable Refrigerant Flow Systems

Air Conditioning Clinics (Systems Series)

  • Air Conditioning Clinics (Systems Series)
  • $18
  • Item # TRG-TRC020-EN
  • Published Jun 1, 2018

Variable Refrigerant Flow Systems focuses on VRF systems, which use a combination of zone‐level indoor terminals and outdoor components to provide heating and air conditioning.

Topics include:

  • System component overview (outdoor units, indoor units, controls, refrigerant piping, heat recovery control units)
  • Air‐ and water‐cooled heat rejection
  • Ducted and non-ducted indoor units
  • System configurations (cooling only, heat pump, heat recovery)
  • Maintenance considerations
  • Refrigerant safety
  • Space humidity control
  • Ventilation air delivery
  • Cooling coil condensate
  • Equipment rating standards
  • Combination ratio
  • Low ambient operation
  • Defrost operation
  • Lubrication and oil recovery

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