Enclosure cooling using early compressor turn-off with extended fan operation
First Claim
Patent Images
1. A thermostat, comprising:
- an electronic display;
control circuitry electrically connected with a heating, ventilation, and air conditioning (HVAC) system;
one or more temperature sensors; and
a processing system comprising one or more processors, the processing system being in communication with the electronic display, the control circuitry, and the one or more temperature sensors, the processing system being configured to;
initiate a first phase of a first cooling cycle in the enclosure using an air conditioning system having a compressor and a fan that passes air over an evaporator coil, wherein the first phase comprises activation of the compressor and activation of the fan;
receive a relative humidity measurement for within the enclosure during the first phase of the first cooling cycle; and
subsequent to the first phase and in response to the relative humidity measurement being determined to be below a threshold relative humidity, initiate a second phase of the first cooling cycle wherein the fan is activated and the compressor is not activated.
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Abstract
Systems and methods are described for controlling fan-only cooling. A first phase of a first cooling cycle may be initiated in an enclosure using an air conditioning system having a compressor and a fan that passes air over an evaporator coil. The first phase may include activation of the compressor and activation of the fan. A relative humidity may be measured within the enclosure during the first phase of the first cooling cycle. Subsequent to the first phase and in response to the relative humidity being determined to be below a threshold relative humidity, a second phase of the first cooling cycle may be initiated during which the fan is activated but the compressor is not activated.
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Citations
20 Claims
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1. A thermostat, comprising:
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an electronic display; control circuitry electrically connected with a heating, ventilation, and air conditioning (HVAC) system; one or more temperature sensors; and a processing system comprising one or more processors, the processing system being in communication with the electronic display, the control circuitry, and the one or more temperature sensors, the processing system being configured to; initiate a first phase of a first cooling cycle in the enclosure using an air conditioning system having a compressor and a fan that passes air over an evaporator coil, wherein the first phase comprises activation of the compressor and activation of the fan; receive a relative humidity measurement for within the enclosure during the first phase of the first cooling cycle; and subsequent to the first phase and in response to the relative humidity measurement being determined to be below a threshold relative humidity, initiate a second phase of the first cooling cycle wherein the fan is activated and the compressor is not activated. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for controlling cooling of an enclosure comprising:
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initiating, by a thermostat, a first phase of a first cooling cycle in the enclosure using an air conditioning system having a compressor and a fan, wherein the first phase comprises activation of the compressor and activation of the fan; measuring, by the thermostat, a relative humidity within the enclosure during the first phase of the first cooling cycle; determining, by the thermostat, the relative humidity is below a threshold relative humidity; and subsequent to the first phase and in response to the relative humidity being determined to be below the threshold relative humidity, initiating, by the thermostat, a second phase of the first cooling cycle wherein the fan is activated and the compressor is not activated. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17)
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18. A non-transitory processor-readable medium for a thermostat comprising processor-readable instructions configured to cause one or more processors to:
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initiate a first phase of a first cooling cycle in the enclosure using an air conditioning system having a compressor and a fan that passes air over an evaporator coil, wherein the first phase comprises activation of the compressor and activation of the fan; receive a relative humidity measurement for within the enclosure during the first phase of the first cooling cycle; and subsequent to the first phase and in response to the relative humidity measurement being determined to be below a threshold relative humidity, initiate a second phase of the first cooling cycle wherein the fan is activated and the compressor is not activated. - View Dependent Claims (19, 20)
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Specification