An HVAC system includes a variable-speed compressor which compresses refrigerant flowing through the HVAC system, a blower which provides a flow of air through the HVAC system at a controllable flow rate, and a controller communicatively coupled to the variable-speed compressor and the blower. The controller receives a demand request which includes a command to reduce power consumption by the HVAC system. In response to receiving the demand request, a speed of the variable-speed compressor is decreased and the controllable flow rate of the flow of air provided by the blower is adjusted.

An HVAC system includes a variable-speed compressor which compresses refrigerant flowing through the HVAC system, a blower which provides a flow of air through the HVAC system at a controllable flow rate, and a controller communicatively coupled to the variable-speed compressor and the blower. The controller receives a demand request which includes a command to reduce power consumption by the HVAC system. In response to receiving the demand request, a speed of the variable-speed compressor is decreased and the controllable flow rate of the flow of air provided by the blower is adjusted.

An air conditioner includes a camera to capture an image of a drain pan inside the air conditioner. An air-conditioning management device acquires, from the air conditioner, captured image information indicating an image of the drain pan captured by the air conditioner. The air-conditioning management device compares the captured image information with reference image information indicating a captured image of the drain pan used as a reference to calculate a dirtiness degree. The air-conditioning management device transmits, to a monitoring terminal, information useful for monitoring of the drain pan, such as the capture image information, information indicating the dirtiness degree, and the like.

A power management system includes a power conditioner configured to condition and perform power factor correction on the electrical power supplied to the main circuit; an inverter, configured to receive direct current (DC) electrical power from a renewable source, and supply alternating current (AC) power to a main circuit that supplies power to an air conditioning system; and a controller configured to profile, using a power profiling meter, electrical power supplied to the main circuit; and modify operations of the air conditioning system or a battery management system based on the profiled electrical power available.

A power management system includes a power conditioner configured to condition and perform power factor correction on the electrical power supplied to the main circuit; an inverter, configured to receive direct current (DC) electrical power from a renewable source, and supply alternating current (AC) power to a main circuit that supplies power to an air conditioning system; and a controller configured to profile, using a power profiling meter, electrical power supplied to the main circuit; and modify operations of the air conditioning system or a battery management system based on the profiled electrical power available.

An air conditioner includes: a blower configured to discharge air, the blower being connected to an outdoor unit, a parameter generator configured to generate at least one parameter during a time period for which the air conditioner is operated with a first cooling capacity based on a set temperature, a learning unit configured to receive the generated at least one parameter as a learning factor and generate operation mode information, an operation mode controller configured to control at least one of the blower or the outdoor unit based on the generated operation mode information, and a central controller configured to control the parameter generator, the learning unit, and the operation mode controller. The air conditioner is operated with a second cooling capacity after the air conditioner is operated with the first cooling capacity for the time period, the second cooling capacity being different from the first cooling capacity.

A system for acquisition and storage of data relative to BACnet objects of a BACnet standard HVAC system having BACnet network, where BACnet objects each generate change data upon occurrence of a change in a value thereof and a controller receives and concatenates the change data of the plurality of BACnet objects into payloads encapsulated into system specific data packets conforming to the BACnet data packet standards and transmitted over the BACnet network. The system also has a data conversion unit receiving the system specific data packets, retrieving the change data therefrom and generating database write commands including the change data. The system also comprises a main data acquisition database in data communication with the data conversion unit and receiving the database write commands therefrom. The main data acquisition database stores the data relative to all data changes of the standard BACnet objects over time.

In a controller for a fluid conditioning unit, a fluid conditioning system including a plurality of fluid conditioning units, and a method of conditioning a fluid, each fluid conditioning unit includes a unit controller configured to operate the fluid conditioning unit. One unit controller of the plurality of the unit controllers may function as a master control module and provide at least one operational set point to each of the unit controllers. The controller may include instructions stored therein that cause the controller (i) to operate as a unit controller controlling the fluid conditioning unit and (ii) to operate as a master controller. The method may include selecting a new unit controller to function as the master control module from the unit controllers of the plurality of fluid conditioning units when the previous unit controller operating as a master control module for the fluid conditioning system goes offline.

An HVAC system for enhanced source-to-load matching without sacrificing airflow delivery in low load structures. Embodiments of the present disclosure provide for an HVAC system for enhanced source-to-load matching in a low load environment, i.e. dwellings with a BTU/hour capacity of less than 18,000. Prior art HVAC equipment is oversized for dwellings with a BTU/hour capacity of less than 18,000 that are insulated to minimum code requirements. Embodiments of the present disclosure provide for an HVAC system that separates the delivery of airflow (CFM) output from that of the BTU capacity output, thereby enabling a distributed delivery system for optimal source-to-load matching without sacrificing airflow delivery in low load environments. The source-to-load matching enabled by the present disclosure ensures optimal indoor air quality, enhanced comfort for occupants of the dwelling, and approximately a 60% reduction in heating and cooling costs when compared to prior art HVAC systems.

An HVAC system for enhanced source-to-load matching without sacrificing airflow delivery in low load structures. Embodiments of the present disclosure provide for an HVAC system for enhanced source-to-load matching in a low load environment, i.e. dwellings with a BTU/hour capacity of less than 18,000. Prior art HVAC equipment is oversized for dwellings with a BTU/hour capacity of less than 18,000 that are insulated to minimum code requirements. Embodiments of the present disclosure provide for an HVAC system that separates the delivery of airflow (CFM) output from that of the BTU capacity output, thereby enabling a distributed delivery system for optimal source-to-load matching without sacrificing airflow delivery in low load environments. The source-to-load matching enabled by the present disclosure ensures optimal indoor air quality, enhanced comfort for occupants of the dwelling, and approximately a 60% reduction in heating and cooling costs when compared to prior art HVAC systems.