A system for controlling thermal comfort in a space is provided with a variable mode of operation. The system may include a conditioner for conditioning air in the space, and a sensor for measuring a temperature in the space. A controller is provided for controlling the conditioner based on the temperature sensed by the sensor, and a fan for circulating air within the space is regulated based on the temperature sensed by the sensor. A related system for controlling a fan based on height is also provided, as is a system and method for easily and efficiently determining the height of a fan using a simple camera, such as one on a “smart” phone. A further aspect pertains to a controller, such as for example a portable handheld device, having a user interface adapted for suggesting an increase in a set point temperature of a thermostat based on the selected speed of the fan.

The present invention relates to a drying apparatus for drying a substance, in particular for drying poultry manure, comprising a drying unit with a conveyor, a dry substance sensor and an ammonia sensor.

A diagnosis control method of an air conditioner is provided to clearly inform a user of an air conditioner installation error. The diagnosis control method includes receiving a test run command or a self-diagnosis command for diagnosis of the air conditioner, performing a first test run to diagnose an assembly state of the air conditioner, performing a second test run to diagnose pipe connection of the air conditioner and an amount of refrigerant in the air conditioner, performing a determination including diagnosing a state of the air conditioner based on operation results of the first test run and the second test run, and displaying the diagnosis result through a display device provided at an indoor unit of the air conditioner.

A need identifying device is provided with a need storing portion that receives, from an informant, a need pertaining to the surrounding environment, an environment state variable controlling portion that calculates an environment state variable for indicating the state of the surrounding environment of the informant based on an environment element measured value collected from a space occupied by the informant, and calculates, from the environment state variable, a dissatisfaction level for the surrounding environment of the informant, and an identification processing portion that identifies, based on the dissatisfaction level, a need from the informant as a temporary need or as a persistent need.

An air pressure measuring ventilation system, comprising: at least one duct; at least one motorized exhaust fan; one or more ultrasonic sensors; one or more infrared spark detectors; and one or more air pressure sensors. The at least one motorized exhaust fan may draw air through the at least one duct. The one or more air pressure sensors may be placed on a side of the at least one duct such that an air pressure is measured as the air is drawn through the at least one duct, such that a plurality of air pressure measurements are generated. The one or more air pressure sensors may be substantially flush with an interior side of the at least one duct and do not obstruct the air as the air is drawn through the at least one duct.

A heating, ventilation, and air conditioning (HVAC) system actuator including a stator magnet and a rotor magnet. The rotor magnet turns an axle connected to an airflow door such that rotation of the axle moves the door and generates waveforms. The number of waveforms generated corresponds to how much the axle has rotated. The stator magnet is magnetized to a saturated state, thereby providing the waveforms with a consistent shape that is consistently detectable by a climate control pulse count module.

A method and apparatus for providing equipment maintenance are disclosed. For example, the method receives data that is captured by at least one sensor deployed at a location, wherein the data is associated with at least one parameter, receives atmospheric data for the location, monitors the at least one parameter of the equipment and the atmospheric data for the location, determines for the at least one parameter, whether an update to a risk measure associated with the equipment is needed, when a deviation from a baseline is detected that is greater than a threshold for a maximum deviation from the baseline, performs the update to the risk measure associated with the equipment, when the update to the risk measure associated with the equipment is needed, and generates a ticket for a remedial action based on the risk measure, when the risk measure triggers the scheduling of the remedial action.

A configured mode of operation of a wireless sensor node unit can selectively activate a first subset of sensor channels of data and selectively deactivate a second subset of sensor channels of data. The configured mode of operation customizes the sensor functionality in the wireless sensor node unit in support of the delivery of data streams to customers.

A controller for use in a climate control system includes a power stealing circuit connectible with a control of the climate control system and configured for stealing power via a signal from a power source through the control. An overcurrent limiting circuit is configured to limit a first portion of the signal to prevent a false call for operation of the control. The overcurrent limiting circuit is further configured not to limit a second portion of the signal to prevent a false call, where the control is configured to recognize only the first portion as determinative of whether the signal is a call for operation.

Disclosed is a system and method for control of in-door ventilation in a building having a series of rooms separated by walls. The system includes: at least one air treatment device arranged to treat the air; a plurality of fan units, including a fan and at least one sensor; and a central computing device adapted to collect data from the sensors and control the fans. Each wall is provided with an opening, the fan units are disposed in the openings to provide an air flow transporting air from the first room through the series of rooms to the last room and then back to the first room, and the air treatment device is disposed to treat the air.