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SYSTEM AND METHOD FOR CONTROLLING A ROOM ENVIRONMENT

  • US 20100070092A1
  • Filed: 09/15/2009
  • Published: 03/18/2010
  • Est. Priority Date: 09/16/2008
  • Status: Abandoned Application
First Claim
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1. A system for controlling an environment in a room of a facility, comprising:

  • a terminal heat exchanger disposed in the room and operable to transfer heat to and from the environment in the room;

    an environmental control device operable to provide control signals to the terminal heat exchanger in response to a signal representative of a room air temperature and a signal representative of a room air relative humidity and a signal representative of a discharge temperature of an airflow leaving the terminal heat exchanger;

    the environmental control device operable to execute a preprogrammed algorithm that;

    (a) determines if the room air temperature is greater than, or less than, a temperature setpoint by a predetermined amount;

    (b) determines if the room air relative humidity is greater than an upper relative humidity setpoint; and

    (c) transmits the control signals to the terminal heat exchanger to modulate the airflow through the terminal heat exchanger and to modulate the discharge temperature of the airflow leaving the terminal heat exchanger until a predetermined room air temperature and room air relative humidity are obtained.

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