An actuator in a HVAC system includes a mechanical transducer, a processing circuit, a wireless transceiver, and a power circuit. The processing circuit includes a processor and memory and is configured to operate the mechanical transducer according to a control program stored in the memory. The wireless transceiver is configured to facilitate bidirectional wireless data communications between the processing circuit and an external device. The power circuit is configured to draw power from a wireless signal received via the wireless transceiver and power the processing circuit and the wireless transceiver using the drawn power. The processing circuit is configured to use the power drawn from the wireless signal to wirelessly transmit data stored in the memory of the actuator to the external device via the wireless transceiver, wirelessly receive data from the external device via the wireless transceiver, and store the data received from the external device in the memory.

A heating, ventilation, air conditioning, and/or refrigeration (HVAC&R) system includes one or more sensors configured to acquire feedback indicative of an operational parameter of a component of the HVAC&R system. The HVAC&R system includes a control unit of the component that is configured to receive the feedback from the one or more sensors. The control unit is configured to analyze the feedback in accordance with a first control scheme to generate a first control output and to operate the component based on the first control output. The HVAC&R system includes a remote server configured to provide a cloud computing environment, where the remote server is communicatively coupled to the control unit via a network. The remote server is configured to receive and analyze the feedback in accordance with a second control scheme to generate a second control output and to operate the component based on the second control output.

A system and method are disclosed for dynamically learning the optimum energy consumption operating condition for a building and monitor/control energy consuming equipment to keep the peak demand interval at a minimum. The dynamic demand limiting algorithm utilized employs two separate control schemes, one for HVAC loads and one for non-HVAC loads. Separate operating parameters can be applied to the two types of loads and multiple non-HVAC (control zones) loads can be configured. The algorithm uses historical peak demand measurements in its real-time limiting strategy. The algorithm continuously attempts to reduce peak demand within the user configured parameters. When a new peak is inevitable, the algorithm strategically removes and/or introduces loads in a fashion that limits the new peak magnitude and places the operating conditions within the user configured parameters. In an embodiment, the algorithm that examines the previous seven days of metering information to identify a peak demand interval. The system then uses real-time load information to predict the demand peak of the upcoming interval, and strategically curtails assigned loads in order to limit the demand peak so as not to set a new peak.

A control system for a HVAC system for a structure and including a blower that flows air over an indoor heat exchanger. The control system may include a first input device, a first sensor, and a processor in electronic communication with the first input device, the first sensor, and the blower of the HVAC system. The first input device may be operable to accept a zoning mode selection. The first sensor may be sensor operable to measure a first temperature at a first location within the structure. The processor may be programmed to determine a cooling or heating demand on the HVAC system based on an input temperature and the first measured temperature. The processor may be further programmed to adjust an air flow rate produced by the blower based on the demand on the HVAC system and the zoning mode selection.

An air purification equipment and an air purification method are provided, including a housing, a purification device, a guiding assembly, and an air driving device. The housing defines an air inlet and an air outlet, the air inlet imports air into the housing, the air outlet exports air out of the housing. The purification device purifies the air in the housing. The guiding assembly guides the air from the air inlet to the purification device. The air driving device drives the air from the air inlet to the purification device, and drives the air to the air outlet. The guiding assembly forms a first channel and a second channel, the first channel is corresponding to the air inlet, the first channel guides the air to flow into the second channel, at least a part of the purification device is positioned in the second channel.

A method of controlling an orifice of a valve in an HVAC system to regulate a flow of a primary fluid through a primary side of a thermal energy exchanger of the HVAC system and thereby adjust a thermal energy transfer by the thermal energy exchanger from the primary fluid to a secondary fluid, flowing through a secondary side of the thermal energy exchanger, includes adjusting, by one or more electronic circuits, the orifice of the valve by applying an efficiency control algorithm to a control setpoint for the valve, the efficiency control algorithm processing the control setpoint for the valve to maintain energy-efficient thermal energy transfer. The method further includes the one or more electronic circuits determining the control setpoint for the valve, using current performance values of the HVAC system and recorded historical data of the HVAC system.

A system comprises a primary unit and a plurality of secondary units each having a unique unit number. The primary unit is configured to communicate a command to each secondary unit with instructions to reply during a time window. The primary unit is also configured to receive a reply communication indicating the secondary unit's unique unit number from at least one of the secondary units, and determine an address to assign to the replying secondary unit based at least in part on the received unique unit number.

A system for controlling energy consumption in a building having a heating, ventilation and air-conditioning (HVAC) which includes using an external application to perform HVAC energy consumption optimization algorithms and other external energy control functions and transmit application control data to a building automation system (BAS), which in turn provides hardware level equipment control for the HVAC system. The external application evaluates equipment data received from the HVAC system by way of the BAS and processes these equipment data to provide application control data back to the BAS. The application control data are calculated to achieve a desired operating efficiency for the HVAC system.

An apparatus, system, and methods for measuring environmental parameters are disclosed. The apparatus, system and methods can be used for a variety of applications, including HVAC air balancing and building commissioning. The system includes a variety of wireless sensing modules and wearable modules for control. display, and storage. Parameters measured include air and water temperature, pressure. velocity, and flow. Also included are sensors for light intensity, CO concentrations, and CO2 concentrations.

An air conditioner unit is configured for automatically detecting a restricted duct and adjusting fan speed schedules in response. The air conditioner unit includes an indoor fan including a drive motor for selectively rotating the indoor fan to urge a flow of air through the indoor portion and a controller is configured for sending a control signal to the drive motor to rotate the indoor fan to an actual fan speed. Based on the actual fan speed and a unit voltage, the controller obtains a target control signal, e.g., via a lookup table, and determines that a restricted duct condition exists if the control signal is different than the target control signal. The controller adjusts the operation of the indoor fan in response to determining that the restricted duct condition exists.