Load control system providing manual override of an energy savings mode
First Claim
1. A load control system for a building having a lighting load located in a space of the building, a heating and cooling system, and a window located in the space of the building, the load control system comprising:
- a lighting control device for controlling the amount of power delivered to the lighting load;
a daylight control device for controlling the amount of natural light to be admitted through the window;
a temperature control device for controlling a setpoint temperature of the heating and cooling system to thus control a present temperature in the building; and
an input control device comprising an actuator and operable to transmit a digital message to at least one of the lighting control device, the daylight control device, and the temperature control device in response to an actuation of the actuator;
wherein the lighting control device, the daylight control device, and the temperature control device are operable to operate in an energy-savings mode so as to automatically reduce a total power consumption of the load control system, the energy-savings mode being manually overridden in response to actuation of the actuator of the input control device, such that the load control system enters a manual mode for manually adjusting at least one of the amount of power delivered to the lighting load, the amount of natural light admitted through the window, and the setpoint temperature of the heating and cooling system in the manual mode, the lighting control device, the daylight control device, and the temperature control device operable to automatically return to the energy-savings mode at a time after the lighting control device, the daylight control device, and the temperature control device entered the manual mode.
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Accused Products
Abstract
A load control system for a building having a lighting load, a window, and a heating and cooling system comprises a lighting control device, a daylight control device, and a temperature control device operable to be controlled so as to decrease a total power consumption of the load control system in an energy-savings mode. The energy-savings mode can be manually overridden in response to actuation of the actuator of an input control device, such that the load control system enters a manual mode for manually adjusting the loads controlled by the lighting control device, the daylight control device, and the temperature control device. The load control system is operable to automatically return to the energy-savings mode at a time after the load control system entered the manual mode.
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Citations
27 Claims
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1. A load control system for a building having a lighting load located in a space of the building, a heating and cooling system, and a window located in the space of the building, the load control system comprising:
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a lighting control device for controlling the amount of power delivered to the lighting load; a daylight control device for controlling the amount of natural light to be admitted through the window; a temperature control device for controlling a setpoint temperature of the heating and cooling system to thus control a present temperature in the building; and an input control device comprising an actuator and operable to transmit a digital message to at least one of the lighting control device, the daylight control device, and the temperature control device in response to an actuation of the actuator; wherein the lighting control device, the daylight control device, and the temperature control device are operable to operate in an energy-savings mode so as to automatically reduce a total power consumption of the load control system, the energy-savings mode being manually overridden in response to actuation of the actuator of the input control device, such that the load control system enters a manual mode for manually adjusting at least one of the amount of power delivered to the lighting load, the amount of natural light admitted through the window, and the setpoint temperature of the heating and cooling system in the manual mode, the lighting control device, the daylight control device, and the temperature control device operable to automatically return to the energy-savings mode at a time after the lighting control device, the daylight control device, and the temperature control device entered the manual mode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A method of controlling a load control system for a building having a lighting load located in a space of the building, a heating and cooling system, and a window located in the space of the building, the method comprising:
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controlling the amount of power delivered to the lighting load; controlling a setpoint temperature of the heating and cooling system to thus control a present temperature in the building; controlling the amount of natural light to be admitted through the window; operating the load control system in an energy-savings mode; automatically decreasing the amount of power delivered to the lighting load when operating in the energy-savings mode; automatically adjusting the setpoint temperature of the heating and cooling system to decrease the power consumption of the heating and cooling system when operating in the energy-savings mode; automatically controlling the amount of natural light admitted through the window so as to decrease the power consumption of the load control system when operating in the energy-savings mode; in response to an actuation of an actuator, entering a manual mode for manually adjusting at least one of the amount of power delivered to the lighting load, the amount of natural light admitted through the window, and the setpoint temperature of the heating and cooling system in the manual mode; and automatically returning to the energy-savings mode at a time after entering the manual mode. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27)
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Specification