Hvac controller having economy and comfort operating modes
AssigneeHoneywell International Inc.
InventorsAmy Ragland, David Quam, Brad Paine
Life of this patent
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Abstract
An HVAC controller may be programmed to control an HVAC system according to a comfort mode and an economy mode. When the HVAC system is operating according to the comfort mode, the HVAC system may primarily draw energy from a locally generated energy source or local energy storage system. The HVAC controller may be programmed to transition the HVAC system from operating according to the comfort mode to operating according to an economy mode, wherein the economy mode is a more energy efficient that the comfort mode
Claims20
A building controller for controlling an HVAC system of a building, wherein the HVAC system includes a first mode for heating and/or cooling the building using energy primarily derived locally at the building, and a second mode for heating and/or cooling the building using energy primarily derived from a remote utility, the building controller comprising:
- a memory for storing an economy set point and a comfort set point, wherein the comfort set point is different from the economy set point;
- an output for providing one or more control signals to the HVAC system;
- and
- a controller coupled to the memory and the output, the controller configured to control the HVAC system via the one or more control signals in accordance with the comfort set point when operating the HVAC system in the first mode, and controlling the HVAC system in accordance with the economy set point when operating the HVAC system in the second mode.
A building controller for controlling an HVAC system of a building, wherein the HVAC system includes a first mode for heating and/or cooling the building using energy primarily derived from a local energy storage system local to the building, and a second mode for heating and/or cooling the building using energy primarily derived from a remote energy source that charges for the energy, the building controller comprising:
- a memory for storing an economy set point and a comfort set point, wherein the comfort set point is different than the economy set point;
- an output for providing one or more control signals to the HVAC system;
- and
- a controller coupled to the memory and the output, wherein:
- when operating the HVAC system in the first mode, the controller is configured to control the HVAC system via the one or more control signals in accordance with the economy set point until the local energy storage system is charged to at least a threshold level and then control the HVAC system in accordance with the comfort set point;
- and
- when operating the HVAC system in the second mode, controlling the HVAC system in accordance with the economy set point.
A method for controlling an HVAC system of a building, wherein the HVAC system includes a first mode for heating and/or cooling the building using energy primarily derived locally of the building, and a second mode for heating and/or cooling the building using energy primarily derived from a utility, the method comprising:
- when operating the HVAC system in the first mode, controlling the HVAC system via the one or more control signals in accordance with a comfort set point;
- and
- when operating the HVAC system in the second mode, controlling the HVAC system in accordance with an economy set point, wherein the comfort set point is different than the economy set point.
Dependencies are inferred from the claim text.