Honeywell International Inc.

Daniel J Sullivan

Levi H Geadelmann

Paul C Wacker

Kevin B Moore

Camel Zhang

Gary Yang

Geoffrey Ho

Angela Zhao

Jeff Gao

Steven Wang

Paul Liu

A fan coil thermostat includes a controller that implements a control algorithm that includes an Auto fan speed mode. The controller is programmed to permit a user to manually select a fan speed setting using the user interface. In response, the controller initiates a timer, and automatically returns to the Auto fan speed mode once the timer expires.

Fan coil thermostat with automatic fan reset

Fan coil thermostats can provide energy savings by, for example, operating a fan coil system more efficiently. Fan coil systems employing such a fan coil thermostat may be more energy efficient. A fan coil system may include a fan coil that is configured for fluid communication with a source of heated fluid and/or a source of cooled fluid, a valve that controls fluid flow through the fan coil and a fan that blows air across the fan coil. The fan coil thermostat may include a controller that implements a control algorithm that calculates an error percentage value relating to a temperature difference between the current temperature and the temperature set point. The error percentage value may include a proportional term related to the temperature difference and an integral term related to the temperature difference. The controller may regulate the fan speed in accordance with the calculated error percentage.

Fan coil thermostat with fan ramping

Fan coil thermostats can provide energy savings by, for example, not unnecessarily heating and/or cooling an unoccupied room or other space. Fan coil systems employing such a fan coil thermostat may be more energy efficient. A fan coil system may include a fan coil that is configured for fluid communication with a source of heated fluid and/or a source of cooled fluid, a valve that controls fluid flow through the fan coil, a fan that blows air across the fan coil and a fan coil thermostat. The fan coil thermostat may include a controller that implements a control algorithm that may include an unoccupied temperature setting. The controller may be programmed to permit a user to enter a user-chosen temperature setting. In response, the controller may initiate a timer, and may automatically return to the unoccupied temperature setting once the timer has expired.

Fan coil thermostat with activity sensing

An HVAC control system that accommodates and/or facilitates control from a remote location. The HVAC control system may include a web-enabled building control appliance that has a controller, a first port and a second port. The controller may implement a web server that is coupled to the first port for serving up one or more web pages on a first network and for receiving a number of responses. The controller may also be coupled to the second port so as to communicate with one or more communicating thermostats via a second network. The web server may be adapted to provide one or more web-pages via the first port that solicit information including schedule and/or non-schedule thermostat configuration information, and for receiving the information via one or more of the responses.

Remote HVAC control with universal engineering tool

An HVAC control system that accommodates and/or facilitates control from a remote location. The HVAC control system may include a web-enabled building control appliance having a controller, a first port and a second port. The controller may implement a web server that is coupled to the first port for serving up one or more web pages on a first network and for receiving a number of responses. The controller may also be coupled to the second port so as to communicate with one or more communicating thermostats via a second network. The web server may be adapted to provide an overview or summary web-page via the first port that displays information regarding the one or more thermostats, where the information that is displayed may be customized for a particular user.

Remote HVAC control with a customizable overview display

An HVAC control system that accommodates and/or facilitates control from a remote location. The HVAC control system may include a web-enabled building control appliance with a controller, a first port and a second port. The controller may implement a web server that is coupled to the first port for serving up one or more web pages on a first network and for receiving a number of responses. The controller may be coupled to the second port so as to communicate with one or more communicating thermostats via a second network. The web server may provide one or more web-pages via the first port that solicit and receive user rights privileges.

Remote HVAC control with user privilege setup

An HVAC control system that accommodates and/or facilitates control from a remote location. The HVAC control system may include a web-enabled building control appliance with a controller, a first port and a second port. The controller may implement a web server that is coupled to the first port for serving up one or more web pages on a first network and for receiving a number of responses. The controller may be coupled to the second port so as to communicate with one or more communicating thermostats via a second network. The web server may provide one or more web-pages via the first port that solicit and receive information pertaining to one or more remote sensors that are to be connected to one of the one or more thermostats. The web server may provide a wiring diagram for the one or more remote sensors that is dependent on the received information pertaining to one or more remote sensors.

Growing community of inventors

St. Anthony, MN, United States of America

Daniel J Sullivan