A HVAC controller includes a housing and one or more heat-generating components contained within the housing. The heat-generating components cause a temperature inside the housing to exceed a temperature outside the housing. The controller includes a temperature sensor configured to measure the temperature inside the housing and a controller event detector configured to detect, for at least one of the heat-generating components, a controller event that generates heat inside the housing. The controller further includes a temperature compensation module configured to identify a steady-state temperature gain associated with the detected controller event, to calculate a temperature offset using a summation of the steady-state temperature gain, to determine the temperature of the building zone outside the housing by subtracting the temperature offset from the temperature measured inside the housing, and to store the temperature offset.

A humidification system including a water-delivery system, an air-delivery system, a control system, and at least one fog-generation system. In example forms, the system includes a water-and-air delivery bar, a fog-delivery block, and/or a tubing-and-track delivery system. In another example form, a humidification system includes a housing having a nozzle discharge body, an air inlet coupling having an air delivery conduit extending therethrough, and a water inlet coupling having a water delivery conduit extending therethrough, and further including means for providing heating and/or a consistent back-pressure and flowrate across multiple nozzles in a multi-nozzle array.

Apparatus and method of heating and ventilating an enclosed area comprising a floor arranged as a number of floor zones. The method comprises providing a radiant heater spaced above each floor zone so as in use to direct heat downwards towards the floor; providing a ventilating air inlet spaced above at least part of each floor zone, the air inlet being at the same level as, or closer to, the floor than the radiant heater, the air inlet being arranged in use to draw-in a controllable quantity of air from outside of the enclosed area; providing a ventilating air outlet spaced above at least part of each floor zone, the air outlet being spaced further from the floor than the radiant heater and air inlet, the air outlet being arranged in use to extract a controllable quantity of air from inside of the enclosed area, wherein the method further comprises, for each floor zone, independently controlling the quantity of air being drawn in and extracted from said floor zone based on the sensed temperature inside and outside the enclosed space.

An air conditioner includes an outdoor unit for circulating refrigerant, a plurality of indoor units for circulating water, and a heat exchange device configured to connect the outdoor unit to the plurality of indoor units and perform heat exchange between the refrigerant and the water. The heat exchange device includes a plurality of ports to which the plurality of indoor units are connected. The air conditioner further includes a controller configured to control flow of the water between the heat exchange device and the plurality of indoor units, and to search pipes respectively connected to the plurality of ports. The controller can control the flow of water such that water at a first temperature flows to some of the plurality of ports and the water at a second temperature lower than the first temperature flows to other some of the plurality of ports.

The invention relates to a method, performed by a control device (100), for cleaning an evaporative humidifier and cooler apparatus (1) for humidification and cooling of air, the apparatus (1) comprises: a cooling and humidification media (2), which is configured to receive and evaporate a fluid (4); a fluid distribution element (6), which is configured to distribute the fluid (4) to the cooling and humidification media (2); and a tray (8) arranged to collect fluid (4) downstream of the cooling and humidification media (2), wherein the fluid (4) distributed by the fluid distribution element (6) is collected from the tray (8). The method comprises: determining (s101) the condition of the cooling and humidification media (2) based on data from a sensor device (10) arranged in fluid communication with the fluid (4) downstream of the cooling and humidification media (2); and supplying (s102) at least one cleaning fluid (12; 14) to the cooling and humidification media (2) dependent on the condition of the cooling and humidification media (2). The invention also relates to a system (200) comprising an evaporative humidifier and cooler apparatus (1) for humidification and cooling of air, a control device (100) and a sensor device (10) arranged in communication with the control device (100).

Provided is a humidifier comprising a housing including a suction port and a discharge port; a water container having an opening/closing valve; a water tank unit provided with a water tank, a humidifying member, a blower unit for providing air-blowing force, a water feed adjusting member installed on the water tank unit, a water feed operating member for moving the water feed adjusting member, and a controller for controlling an operation of the water feed operating member. The water feed adjusting member includes a space forming member having an opening, the opening guiding the water discharged from an outlet of the opening/closing valve to the water tank unit, and the space forming member includes a confinement space that may confine the water discharged from the outlet when the housing is inclined at a certain angle or greater.

A smoke control system of a building including a supply air duct installed in an interior of the building having a plurality of floors in a vertical direction, including a plurality of openings corresponding to the plurality of floors, respectively, and one end of which is exposed to an outside of the building, a blower that supplies air to the supply air duct, and a plurality of automatic differential pressure dampers installed in a plurality of ancillary rooms provided on the plurality of floors, respectively, to be adjacent to the plurality of openings. Opening areas of the plurality of openings increase as locations of the plurality of openings become farther away from a point, at which air is supplied to the supply air duct by the blower.

A ventilation fan includes a body unit, which has a fan disposed in a body case and a fan controller operable to control an air volume of the fan. The ventilation fan also includes a sensor module having an indoor environment detecting sensor and a module controller operable to control a detecting operation of the indoor environment detecting sensor. The body unit has a module mount on which the sensor module is mounted and another sensor module can be mounted in place of the sensor module. The module mount is connected to the fan controller. The module controller outputs detection information obtained based on a detection result of the indoor environment detecting sensor to the fan controller, which in turn controls the air volume of the fan based on the detection information inputted thereto.

A ventilation system with: (i) a volumetric enclosure having an inlet and an outlet and for coupling to an interior of a building habitable by human occupants; (ii) a fan located within the volumetric enclosure and for drawing air exterior to the building and supplying the air to the interior of the building; (iii) a programmable control apparatus for enabling and disabling the fan in response to a plurality of parameters, at least some of the parameters relating to quality of air to me moved in response to the fan; and (iv) circuitry coupled between the inlet and the outlet for measuring a signal representative of a volume of air passing through the volumetric enclosure over a period of time.

A multifunction adaptive whole house fan system can include a whole house fan to pull large volume of air through a building structure. The whole house fan can pull air from a motorized window or damper into the building structure and expel air through an attic. The system can monitor the environment to operate the whole house fan when desired conditions are present in coordination with other systems of the building structure to reduce overall energy consumption.