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Fan coil thermostat with activity sensing

  • US 9,182,141 B2
  • Filed: 08/03/2007
  • Issued: 11/10/2015
  • Est. Priority Date: 08/03/2007
  • Status: Active Grant
First Claim
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1. A method of operating a fan coil system comprising a fan coil accommodating fluid flow therethrough and a fan configured to blow air across the fan coil, the method comprising:

  • controlling fluid flow through the fan coil, regulating the fan speed, or controlling fluid flow through the fan coil and regulating the fan speed in accordance with an unoccupied temperature set point;

    accepting a temporary temperature set point by sensing activation of one or more temperature set point buttons by a user;

    in response to accepting the temporary temperature set point via sensing activation of one or more of the temperature set point buttons, performing the following;

    initiating a timer in response to accepting the temporary temperature set point;

    controlling fluid flow through the fan coil, regulating the fan speed, or controlling fluid flow through the fan coil and regulating the fan speed in accordance with the temporary set point;

    automatically reverting to the unoccupied temperature set point once the timer expires,wherein controlling fluid flow through the fan coil, regulating the fan speed, or controlling fluid flow through the fan coil and regulating the fan speed only occurs in accordance with the unoccupied temperature set point or with the temporary set point and does not occur in accordance with a programmed schedule; and

    restarting the timer if another temporary temperature set point is accepted before the timer expires.

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