The integrated solar absorption heat pump system includes an absorption heat pump assembly (AHPA) having a generator, a condenser in fluid communication with the generator, an evaporator/absorber in fluid communication with the condenser and the generator, and a heat exchanger in communicating relation with the evaporator/absorber; a solar collector in fluid communication with the generator of the AHPA; a photovoltaic thermal collector in communicating relation with the evaporator/absorber of the AHPA; a plurality of pumps configured for pumping a fluid throughout the system to provide the desired heating or cooling; a power storage source, e.g., a solar battery, in communicating relation with the photovoltaic thermal collector; and a coil unit in communicating relation to the evaporator/absorber for receiving an air-stream. The absorption heat pump assembly can include an absorber and a solution heat exchanger.

A device management system facilitates an automatic pairing of an electronic device with a management account. The device management system receives a public network address associated with a computer device on a private network accessing the management account. The system retrieves the metadata including a public network address associated with a registration of the electronic device with the device management system. The public network address registered with the metadata is provided by a router on the private network and therefore should match the public network address used by computer devices on the private network. The management account is paired with the electronic device if the electronic device has the same public network address as the computer device accessing the management account. Pairing the management account to the electronic device allows the management account to communicate with the electronic device over the public network through the device management system.

A combined hot water and air heating and conditioning system including a first heat exchanger, a heat pump, a chilling tower loop, a burner and a second heat exchanger to provide hot water, air heating and air cooling. The system provides hot water, air heating and cooling all in one single unit. The system utilizes a heat pump to remove heat from ambient air and transfer the rejected heat into a hot water system, thereby using waste heat to heat the hot water system. The system utilizes a heat exchanger not only for the purpose of transferring heat from a heating source to a fluid in the heat exchanger but also for the purpose of dissipating heat from the fluid in the heat exchanger to the surroundings of the heat exchanger, thereby allowing a heat pump to act both as an air heating and conditioning device.

A setting value change device is provided whereby change operations to correct temperature setting values or hot water amount values by drag operations are easy. A controller causes a display to display a drag button and a movement path on which the drag button moves. Additionally, the controller provides, on a touch sensor, a drag area for detecting a drag input on the drag button and a reference point disposed at a location off the movement path. Moreover, the controller is configured to set the drag area larger than the display range of the movement path, move the drag button to a crossing point where a straight line or specific curve connecting the reference point to a drag operation position in the drag area crosses the movement path, and change the temperature setting value to the value corresponding to the position of the drag button.

An air conditioning system including one or more supercooling heat exchangers, a supercooling expansion device, a temperature sensor, and a pressure sensor so as to accurately measure and control a current supercooling degree value of a fluid coolant flowing between a fluid pipe and a plurality of indoor devices.

The integrated solar absorption heat pump system includes an absorption heat pump assembly (AHPA) having a generator, a condenser in fluid communication with the generator, an evaporator/absorber in fluid communication with the condenser and the generator, and a heat exchanger in communicating relation with the evaporator/absorber; a solar collector in fluid communication with the generator of the AHPA; a photovoltaic thermal collector in communicating relation with the evaporator/absorber of the AHPA; a plurality of pumps configured for pumping a fluid throughout the system to provide the desired heating or cooling; a power storage source, e.g., a solar battery, in communicating relation with the photovoltaic thermal collector; and a coil unit in communicating relation to the evaporator/absorber for receiving an air-stream. The absorption heat pump assembly can include an absorber and a solution heat exchanger.

A system for conditioning air circulated from an interior of a building includes a refrigerant path, an air-cooled condenser in the refrigerant path, a water-cooled condenser in the refrigerant path that transfers heat from refrigerant in the refrigerant path to the building water, an evaporator in the refrigerant path, and a control system. The control system moves the system between operation of the air-cooled condenser and the water-cooled condenser based upon predetermined system conditions.

Systems and methods are disclosed that include providing a hybrid heat pump system with a heat pump connected in fluid communication with an outdoor unit and a ground heat exchanger via a plurality of valves. The hybrid heat pump system also includes a system controller that selectively configures the plurality of valves to alter a fluid flow path through at least one of the outdoor unit that exchanges heat between a fluid carried by an outdoor heat exchanger of the outdoor unit and ambient outdoor air and the ground heat exchanger that exchanges heat between the fluid carried by the ground heat exchanger and the ground in order to maximize heat transfer efficiency between the fluid and the ambient outdoor air and/or the ground based on various temperatures measured by the hybrid heat pump system.

A method may include operating a switching circuit in an on state and an off state to actuate a flow of electrical power through a load when switched to the on state; monitoring an electrical property associated with the switching circuit; receiving an enable signal from a processor to power the load; providing a drive signal to the switching circuit to switch to the on state and power the load; determining if an electrical anomaly is present based on the monitored electrical properties; causing the switching circuit to switch to the off state if an electrical anomaly is detected; providing a fault signal to the processor; determining while the switching circuit is off, if the electrical anomaly has been corrected; and after the anomaly has been corrected, causing the switching circuit to switch to the on state.

A method for a refrigeration system includes applying, by a gas cooler of the refrigeration system, a first cooling stage to refrigerant circulating through the refrigeration system load. The method further comprises applying, by a heat exchanger located downstream from the gas cooler, a second cooling stage to the refrigerant, wherein the second cooling stage removes heat from the refrigerant, and applying, by the heat exchanger located downstream from the gas cooler, the heat removed during the second cooling stage to a floor heating system operable to heat the floor of an enclosed space.