VRF System and the North American Market

11.30.2020 | Product

VRF System

The Variable Refrigerant Flow (VRF system) was created in Japan in the early 80s. VRF is an HVAC technology that allows for varying degrees of cooling in only certain areas.

Even though VRF systems are similar to multi-split systems, they do have one key difference. For instance, multi-split systems turn on and off completely when achieving the desired temperature. On the other hand, VRF systems continually adjust the flow of refrigerant to each indoor evaporator.

VRF systems are very well established in European and Japanese markets. 50% of midsize office buildings (up to 70,000 ft2 or 6,500 m2) and 33% of large commercial buildings (more than 70,000 ft2 or 6,500 m2) use VRF system in Japan.1

What are good applications for a VRF system? You can use a VRF system in most commercial buildings. They can be small shops or restaurants, and even large office buildings and public spaces. Since buildings are not fully occupied at the same time, the zoning ensures the usage of energy to only cool or heat offices that are occupied. Quiet operation, and precise temperature control are another great benefits of VRF system.

VRF in the US

Why are VRF systems a good solution? First and foremost, energy efficiency. The constant race to reduce energy consumption and cost, combined with the boom of green building regulations, is driving engineering companies and architects to specify VRF systems. Most importantly, VRF systems use environmental-friendly refrigerants, such as HFC-32, and has low global warming effects.

In order to support the rapidly emerging North American rooftop VRF system market, Inaba Denko's commercial lineset cover, the Slimduct RD is now available in the US.

Slimduct RD offers a practical, economical, durable and aesthetic solution for protecting multiple line sets. Easy to install, Slimduct RD saves time on labor compared to custom-fabricated, galvanized sheet metal line set ducting. As well as in comparison to other labor-intensive fabricated alternatives.

In conclusion, with a higher efficiency and increased controllability, the VRF system, combined with the easy of installation can help you achieve an aesthetic and sustainable design.

1 Goetzler (April 2007). "Variable Refrigerant Flow Systems". ASHRAE Journal: 24–31.

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