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Common Issues With VRF System Installation

 Variable Refrigerant Flow (VRF) systems are turning into an increasingly popular HVAC solution for commercial construction projects around the country. They offer numerous benefits that can be acknowledged by architects, engineers, contractors, and end-users. A portion of the benefits incorporates energy efficiency, flexible installation, and local controls for end-users. I started my career by spending two years as a salesperson for a VRF manufacturer, and coming up next are a few perceptions I made during that time about issues that commonly caused problems during installation.

Two Common VRF System Installation Problems

Refrigerant piping

Refrigerant piping in a VRF system resembles the piping or ductwork of traditional air or hydronic systems and is one component where slip-ups are commonly made in light of the fact that the installation is different for each system that is introduced. Manufacturers of VRF systems have design programs that will produce piping outlines that show the piping format among outdoor and indoor units and piping sizes for contractors to follow during installation. It is important for the contractor to follow the pipe sizing and indoor unit course of action as shown by the design program and if changes should be made, to check with the manufacturer to check whether the progressions will affect the refrigerant pipe sizing. In the event that changes are made to the system without consulting the manufacturer, issues like diminished limit could turn into an issue.

Control wiring

Control wiring can likewise be a cause of issues if not introduced correctly. Similar design programs mentioned above will likewise normally produce a control wiring diagram that ought to be followed intently during installation. While not as muddled as refrigerant piping since the wiring doesn't change size from unit to unit, points of interest, for example, wire size requirements, grounding requirements, and network topology should be followed, and can shift from manufacturer to manufacturer.

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