August 2006
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These benefits come from the flexibility provided by being able to sense without the need for connecting wires.
Paul Ehrlich, P.E.
Building Intelligence Group
Contributing Editor
T here has been a lot written about the many benefits of using wireless technology for building control systems. New products on the market make a strong case on the benefit of cost reduction in wiring, by many accounts reducing system installation costs by as much as 50%. While these are very real benefits there is also a series of less tangible benefits from using wireless technology. These benefits come from the flexibility provided by being able to sense without the need for connecting wires. Space sensors can not only be located where they will work best, but can be installed once wall finishes and furniture is in place. If an additional sensor is required, it is easy to add or to relocate an existing sensor.
Even the construction process is greatly simplified allowing the controls contractor significant savings by requiring fewer trips to the jobsite. In order to understand these benefits, we need to look deeper into the construction process. The typical design and installation of terminal units (VAV, Fan Coils, etc.) for a new construction project follows a number of familiar steps. Let?s take a look at these for a traditional wired installation and for a wireless installation:
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