Ft Energy Controls, LLC

Chilled Beam Controls, LLC

Richard Furman

Zachary Michael Thomas

An air conditioning system including a conditioning unit (e.g., fan coil unit) and a control system are provided for efficiently and effectively conditioning indoor air. Some embodiments address temperature control (e.g., including heating and cooling), humidity control, and air quality control, while also introducing conditioned outdoor air. One aspect relates to a control system that delivers liquid to a coil in the conditioning unit at a specified input temperature and flow rate (or specified input temperature and temperature drop across the coil) to meet both sensible and latent cooling demands.

System and method for controlling indoor environments

A control system is provided for controlling heating and/or cooling with a conditioning load such as fan coils and chilled beams. Based on user input and ambient conditions, the control system determines a desired temperature for the liquid entering the load and combines fresh supply liquid (e.g., from a chiller or boiler) with a portion of the liquid that has passed through the load, to achieve the target load input temperature for the liquid. A recirculation pump may be used to return a portion of the liquid exiting the load for mixing with the fresh supply liquid and a control valve may be used to adjust the ratio of fresh supply liquid and recirculated liquid to achieve the targeted temperature. The control systems can be compatible with a variety of liquid supply systems such as two- and four-pipe systems.

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Atlanta, GA, United States of America

Richard Furman