FAQs : AIRSTAGE™ (VRF Systems) How is a VRF system different from a conventional system?

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A conventional system usually operates at a fixed speed. On days where the full capacity is not required, the system will turn off and on to maintain the space temperature. These systems will also have a single indoor unit connected to a network of ducts. A fan distributes air through the ducts and brings return air back to the central system. This is less efficient than a VRF system because it can only heat or cool the entire system; there can only be one set point. Also, the fan and duct losses of a conventional system can add an additional 30% to the total energy consumption.

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