Variable Refrigerant Flow (VRF) — the gold standard for large commercial buildings. Ductless, high-capacity HVAC with individual climate control for every zone. Heat pump or heat recovery configurations available.
VRF (Variable Refrigerant Flow) systems are the most sophisticated large-scale air conditioning technology available. These ductless systems can serve dozens of indoor units from a single outdoor plant, with each unit operating independently at its own temperature setting.
The intelligence of a VRF system lies in its ability to circulate only the exact amount of refrigerant needed at any moment — significantly reducing energy waste compared to fixed-capacity systems. This makes VRF one of the most energy-efficient options for large, multi-zone commercial buildings.
All indoor units operate in the same mode — either all cooling or all heating at any given time. The system switches between modes based on demand. Ideal for buildings with relatively uniform heating and cooling needs.
Different indoor units can heat and cool simultaneously. Heat recovered from zones needing cooling is redirected to zones requiring heating — dramatically improving overall system efficiency in buildings with mixed requirements.
We are proud to supply and install the Mitsubishi Electric CITY MULTI range — widely recognised as the market leader in VRF technology and energy efficiency.
The Mitsubishi Electric CITY MULTI system is the benchmark VRF solution for large commercial buildings. Using R410A refrigerant with zero ODP (Ozone Depletion Potential), the range has been designed specifically for today's building requirements — addressing energy efficiency, adaptability and reliability.
The system uses a unique Heat Interchange Circuit (HIC) that enhances efficiency by providing additional sub-cooling, allowing precise control of refrigerant distribution and increasing operating efficiency while reducing the total refrigerant volume in each system.
The illustration below shows a Mitsubishi Electric CITY MULTI heat recovery VRF system installed across a mixed-use commercial building — with different indoor unit types serving each zone simultaneously in heating or cooling mode.
Mitsubishi Electric CITY MULTI — Unique Heat Recovery Technology. Source: Mitsubishi Electric CITY MULTI Product Catalogue CM15AN-E-NZ
Our experienced engineers will assess your building and recommend the right VRF configuration — heat pump or heat recovery — for maximum comfort and efficiency.
