From flexibility and noise levels to controls and precision performance, the basic pitch for VRF technology is familiar by now to the industry in general. So is the concept of locating HVAC equipment on the roofs of typical nonresidential buildings. The deployment of multiple traditional VRF units on the roof may be a less familiar sight for technicians and a less familiar concept for owners and designers, but it offers its own advantages.
As with any fairly new idea — in this case, not so much the equipment or the location but the equipment in the location — the quality of the installation is even more important than usual.