Thermostat and method for controlling an HVAC system with remote temperature sensor and onboard temperature sensor
First Claim
1. A heating, ventilation and air condition (HVAC) system, the system comprising:
- a thermostat including an onboard temperature sensor;
a remote temperature sensor in operable communication with the thermostat; and
a controller in operable communication with each of the onboard temperature sensor and the remote temperature sensor and configured to execute a control algorithm that calculates a temperature difference between a temperature detected by the onboard temperature sensor and a temperature detected by the remote temperature sensor, such that when the remote temperature sensor fails, the controller uses the calculated temperature difference to calibrate the onboard temperature sensor.
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Abstract
A heating, ventilation and air condition (HVAC) system is provided. The system includes a thermostat including an onboard temperature sensor, a remote temperature sensor in operable communication with the thermostat, and a controller in operable communication with each of the onboard sensor and the remote sensor and configured to execute a control algorithm that calculates a temperature difference between a temperature detected by the onboard temperature sensor and a temperature detected by the remote temperature sensor, such that when the remote temperature sensor fails, the controller uses the calculated temperature difference to calibrate the onboard temperature sensor and set the thermostat to the temperature detected by the remote temperature sensor.
93 Citations
24 Claims
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1. A heating, ventilation and air condition (HVAC) system, the system comprising:
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a thermostat including an onboard temperature sensor; a remote temperature sensor in operable communication with the thermostat; and a controller in operable communication with each of the onboard temperature sensor and the remote temperature sensor and configured to execute a control algorithm that calculates a temperature difference between a temperature detected by the onboard temperature sensor and a temperature detected by the remote temperature sensor, such that when the remote temperature sensor fails, the controller uses the calculated temperature difference to calibrate the onboard temperature sensor. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for controlling a heating, ventilation and air condition (HVAC) system having a thermostat coupled to a remote temperature sensor and an onboard temperature sensor, the method comprising:
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executing, using a controller, a control algorithm that calculates a temperature difference between a temperature detected by the onboard temperature sensor and a temperature detected by the remote temperature sensor; and when the remote temperature sensor fails, using the calculated temperature difference to calibrate the onboard temperature sensor. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A building automation system (BAS) system, the system comprising:
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a thermostat including an onboard temperature sensor; a remote temperature sensor in operable communication with the thermostat; and a controller in operable communication with each of the onboard temperature sensor and the remote temperature sensor and configured to execute a control algorithm that calculates a temperature difference between a temperature detected by the onboard temperature sensor and a temperature detected by the remote temperature sensor, such that when the remote temperature sensor fails, the controller uses the calculated temperature difference to calibrate the onboard temperature sensor. - View Dependent Claims (16, 17, 18, 19, 20)
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21. A heating, ventilation and air condition (HVAC) system, the system comprising:
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a thermostat including an onboard temperature sensor; a remote temperature sensor in operable communication with the thermostat; and a controller in operable communication with each of the onboard temperature sensor and the remote temperature sensor and configured to execute a control algorithm that calculates an error constant based on temperatures detected by the onboard temperature sensor and the remote temperature sensor over a time period, such that when the remote temperature sensor fails, the controller uses the calculated error constant to calibrate the onboard temperature sensor. - View Dependent Claims (22, 23, 24)
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Specification