Hot Tips (HVAC Efficiency)

Using VRF Systems to Solve HVAC Challenges

Variable Refrigerant Flow (VRF) is a leading-edge, globally proven HVAC technology that can help solve many HVAC challenges:

Increasing Energy Efficiency—VRF systems with inverter-driven compressors can reduce energy bills up to 25 percent.

Lower Lifecycle Costs—VRF’s installation and operational costs are often lower than those of traditional systems.

Delivering Fresh Air—With advanced filters, zoning capabilities, and integration with ventilation systems, VRF can help meet indoor air mandates.

Limiting Operational Noise—VRF eliminates disruption indoors and out. Indoor units operate as quietly as 27 decibels and outdoor units are quieter than traditional systems.

Varying Loads Needs—VRF does an impressive job meeting space and occupant needs. Full-range variable capacity delivers only the amount of conditioning required to match a zone’s demand. Using integrated controls and sensors that measure conditions within each zone, the compressor adjusts speeds to maintain the desired temperature.

Solving Comfort Issues—VRF’s zoning offers personalized comfort control, including the ability to simultaneously cool and heat from one heat recovery system.

Controlling Multiple Spaces—VRF can integrate with third-party software. It offers a wide variety of controls options, from individual zone controllers to centralized controllers that monitor, schedule, and control multiple indoor units through a web browser. Multiple central controllers can connect to a building’s management system.

Minimizing Maintenance—Limited maintenance is necessary and doesn’t require a specialized service contractor. VRF components are easily accessible, yet also safely tucked away within the system.

This article originally appeared in the School Planning & Management October 2018 issue of Spaces4Learning.

About the Author

James DeBerry is commercial marketing manager for Mitsubishi Electric Cooling & Heating ( He can be reached at [email protected] or 888-979-9686.