INTELLIGENT THERMOSTAT SYSTEM FOR LOAD MONITORING A REFRIGERANT-CYCLE APPARATUS
First Claim
1. An intelligent thermostat for monitoring the operation of a refrigerant-cycle system, comprising:
- a processing system configured to receive sensor data from one or more condenser unit sensors and one or more evaporator unit sensors, said processing system configured to calculate an efficiency of said refrigerant-cycle system using at least a portion of said sensor data from said one or more condenser unit sensors and at least a portion of said sensor data from said one or more evaporator unit sensors, wherein said processing system is configured to diagnose performance problems using at least a portion of said sensor data from said one or more condenser unit sensors and at least a portion of said sensor data from said one or more evaporator unit sensors, wherein said efficiency comprises an actual efficiency based at least in part on ambient conditions; and
a display configured to display an indication of said efficiency.
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Accused Products
Abstract
A real-time monitoring system that monitors various aspects of the operation of a refrigerant-cycle system is described. In one embodiment, the system includes a processor that measures power provided to the refrigerant-cycle system and that gathers data from one or more sensors and uses the sensor data to calculate a figure of merit related to the efficiency of the system. In one embodiment, the sensors include one or more of the following sensors: a suction line temperature sensor, a suction line pressure sensor, a suction line flow sensor, a hot gas line temperature sensor, a hot gas line pressure sensor, a hot gas line flow sensor, a liquid line temperature sensor, a liquid line pressure sensor, a liquid line flow sensor. In one embodiment, the sensors include one or more of an evaporator air temperature input sensor, an evaporator air temperature output sensor, an evaporator air flow sensor, an evaporator air humidity sensor, and a differential pressure sensor. In one embodiment, the sensors include one or more of a condenser air temperature input sensor, a condenser air temperature output sensor, and a condenser air flow sensor, an evaporator air humidity sensor. In one embodiment, the sensors include one or more of an ambient air sensor and an ambient humidity sensor.
183 Citations
38 Claims
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1. An intelligent thermostat for monitoring the operation of a refrigerant-cycle system, comprising:
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a processing system configured to receive sensor data from one or more condenser unit sensors and one or more evaporator unit sensors, said processing system configured to calculate an efficiency of said refrigerant-cycle system using at least a portion of said sensor data from said one or more condenser unit sensors and at least a portion of said sensor data from said one or more evaporator unit sensors, wherein said processing system is configured to diagnose performance problems using at least a portion of said sensor data from said one or more condenser unit sensors and at least a portion of said sensor data from said one or more evaporator unit sensors, wherein said efficiency comprises an actual efficiency based at least in part on ambient conditions; and a display configured to display an indication of said efficiency. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38)
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Specification