Variable Refrigerant Volume (VRV) is an HVAC technology invented by Daikin Industries, Ltd. in 1982. Like ductless mini splits, VRVs use refrigerant as the cooling and heating medium. This refrigerant is conditioned by a single or multiple outdoor condensing units and is circulated within the building to multiple indoor units. VRV systems, unlike conventional chiller-based systems, allow for varying degrees of cooling in only certain areas, reducing energy consumption.

How does VRV work

VRV systems operate according to a refrigeration cycle in which a working fluid or refrigerant is circulated between an evaporator in each inside unit and a condenser in the outdoor unit. Heat is exchanged between the refrigerant and the indoor/ambient air in these components, allowing for heat to be “pumped” from one air mass to the other.

Heat transfer at the inside units is controlled by varying the refrigerant flow rate in the evaporators. The VRV branch selector allows for flow rate control at each inside unit and different heat loads can therefore be serviced simultaneously by each unit.

Details
  • Category
    Mechanical Ventilation Systems, Heat Pumps
  • Brand
    Daikin
  • Year
    2025
General
  • Country of origin
    Australia
  • Type of use
    Residential
  • Installation
    Professional installation required
Scope of use

Residential - heating and cooling

The reason you should choose VRV

The benefits of VRV systems relate largely to their flexibility. They provide rapid response to individual space heating/cooling requirements and can be used for simultaneous heating and cooling of separate zones. This ability makes it possible to use these systems for heat recovery from one zone to another, resulting in higher system efficiency.

VRV systems are far more flexible than traditional packaged or ducted HVAC systems (where a single outdoor unit circulates conditioned air or cold water throughout all zones of a building), offering individualized zone control and a high degree of decentralized controllability. VRV systems also eliminate the need for expensive ducting and offer higher efficiency than packaged HVAC systems due to the lower heat losses incurred during fluid transport between the outdoor and indoor units.

Coolzone Heating & Cooling
Keysborough, Victoria
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About the
Seller

Our Philosophy

In the world of Melbourne’s high-end residential architecture, mechanical systems should be felt, not seen. We treat HVAC as a critical element of a home. Our company structure seamlessly marries multidisciplinary departments -that of a design studio, tenancious workmanship of installation team, engineering R&D, and efficient business management practices - ensuring that every duct, diffuser, and unit is integrated with the same precision as the architecture itself.

The Coolzone Advantage: Built-In Reliability

Our Pro-Partner Workflow

  • Phase 1: Strategic Project Alignment: We perform a deep-dive review of your documentation to catch potential mechanical conflicts before they reach the site, saving you from costly mid-build changes.
  • Phase 2: Optimized System Engineering: We develop high-performance conceptual options tailored to the specific thermal needs of the build, ensuring the HVAC system complements your architectural vision.
  • Phase 3: Client Experience Management: We handle the technical consultations and feedback loops with the homeowner, acting as your expert arm to ensure they feel confident and informed throughout the selection process.
  • Phase 4: Precision Design & Cost Certainty: Our final designs come with transparent, fixed-cost estimations. This eliminates "budget creep" and provides you with a definitive figure for your project's bottom line.
  • Phase 5: Active Site Integration: We maintain ongoing monitoring and proactive teamwork with your crew to ensure our installation hits every milestone on schedule.
  • Phase 6: The "Peace of Mind" Handover: Our comprehensive after-care program ensures the homeowner is fully educated on their system, protecting your reputation and ensuring you never get a "no cooling" call on a Friday night.
Coolzone Heating & Cooling
VRV Systems

Coolzone Heating & Cooling