Complete VRF System Illustration
Major Components:
- VRF Outdoor Unit
- VRF Indoor Unit
- Refrigerant Pipelines
- Control Cable
- Ductwork (if applicable)
VRF systems Major advantages:
- Good zoning control
- Individual temperature control
- Minimized ductwork,
- Excluding the need for secondary fluids (chilled-water)
- Uses R-410A refrigerant (Environmental Friendlier Choice)
- Very high energy efficiency ratio (EER) of 15 to 20
- Integrated energy efficiency ratio (IEER) of 17 to 25.
- They are 20% to 30% more efficient than conventional HVAC systems due to partial load operation, speed modulation, zoning capabilities, and heat-recovery technology.
- The need for a dedicated ventilation system to deliver the outside air to various zones
- Long refrigerant lines and a large number of branch connections could result in refrigerant leakage
- The need for condensate drain lines for each VRF indoor unit
- Compliance with maximum allowable refrigerant quantities within a given volume.
