Abstract: An actuator in an HVAC system is provided. The actuator includes a motor and a drive device. The drive device is driven by the motor and coupled to an HVAC component for driving the HVAC component between multiple positions. The actuator further includes a processing circuit. The processing circuit is coupled to the motor and configured to transmit control signals to operate the motor to drive the HVAC component between a first position and a second position, monitor temperature data received from one or more temperature sensors, determine that the temperature data does not meet an expected performance criterion and transmit an alarm signal.

Abstract: A HVAC system includes building equipment operable to affect a physical state of a space in the building and a controller coupled to the building equipment. The controller is configured to accept a plurality of binary inputs indicating one or more conditions of the space, provide, to the building equipment, a plurality of outputs configured to control the operation of the building equipment, configure a first binary input of a plurality of binary inputs as an interrupt, the interrupt configured to receive an interrupt signal, determine, based on the interrupt signal, a state of the interrupt, and deactivate the plurality of outputs so that no control signals are sent to the building equipment so long as the controller determines the interrupt is in an activated state.

Abstract: A HVAC system includes an environmental sensor configured to provide an indoor air quality (IAQ) value indicative of at least one of a pollutant or a pathogen in a space in the building and a controller positioned in the space, the controller configured to receive the IAQ value from the environmental sensor, determine if the IAQ value is above a IAQ setpoint for the space, determine an occupancy status for the space, and control HVAC equipment to ventilate the space with outdoor air at a flowrate in response to determining that the IAQ value is above the IAQ setpoint, such that the flow rate when the occupancy status of the space is unoccupied is less than the flow rate when the occupancy status of the space is occupied.

Abstract: A controller for controlling HVAC equipment in a building includes a processing circuit configured to receive an occupancy schedule indicating at least one of a first occupied period or a last unoccupied period for a space in the building for a schedule period and receive a user input indicating the space should be purged based on occupancy. The controller selects, based on the user input, at least one of a pre-occupancy purge mode or a post-occupancy purge mode. The controller is further configured to control the HVAC equipment to ventilate the space for a purge duration prior to the beginning of the first occupied period in response to selecting a pre-occupancy purge mode, and ventilate the space for the purge duration at the beginning of the last unoccupied period in response to selecting a post-occupancy purge mode.

Abstract: An actuator in an HVAC system is provided. The actuator includes a motor and a drive device. The drive device is driven by the motor and coupled to an HVAC component for driving the HVAC component between multiple positions. The actuator further includes a processing circuit. The processing circuit is coupled to the motor and configured to transmit control signals to operate the motor to drive the HVAC component between a first position and a second position, monitor temperature data received from one or more temperature sensors, determine that the temperature data does not meet an expected performance criterion and transmit an alarm signal.

Abstract: A controller includes a plurality of configurable input ports, a plurality of configurable output ports, and a configuration circuit. The configuration circuit is configured to provide a graphical user interface configured to facilitate a user in inputting an equipment description, determine a controller configuration based on the equipment description, configure the plurality of configurable input ports in accordance with the controller configuration, configure the plurality of configurable output ports in accordance with the controller configuration, and enable a set of control logic based on the controller configuration. The controller also includes an online control circuit configured to receive inputs via the plurality of configurable input ports, generate outputs based on the inputs and the set of control logic, and provide the outputs to building equipment via the plurality of configurable output ports.

Abstract: An actuator in an HVAC system is provided. The actuator includes a motor and a drive device. The drive device is driven by the motor and coupled to an HVAC component for driving the HVAC component between multiple positions. The actuator further includes a processing circuit. The processing circuit is coupled to the motor and configured to transmit control signals to operate the motor to drive the HVAC component between a first position and a second position, monitor temperature data received from one or more temperature sensors, determine that the temperature data does not meet an expected performance criterion and transmit an alarm signal.

Abstract: A controller includes a plurality of configurable input ports, a plurality of configurable output ports, and a configuration circuit. The configuration circuit is configured to provide a graphical user interface configured to facilitate a user in inputting an equipment description, determine a controller configuration based on the equipment description, configure the plurality of configurable input ports in accordance with the controller configuration, configure the plurality of configurable output ports in accordance with the controller configuration, and enable a set of control logic based on the controller configuration. The controller also includes an online control circuit configured to receive inputs via the plurality of configurable input ports, generate outputs based on the inputs and the set of control logic, and provide the outputs to building equipment via the plurality of configurable output ports.

Abstract: An actuator in an HVAC system is provided. The actuator includes a motor and a drive device. The drive device is driven by the motor and coupled to an HVAC component for driving the HVAC component between multiple positions. The actuator further includes a processing circuit. The processing circuit is coupled to the motor and configured to transmit control signals to operate the motor to drive the HVAC component between a first position and a second position, monitor temperature data received from one or more temperature sensors, determine that the temperature data does not meet an expected performance criterion and transmit an alarm signal.