Abstract: A vehicular air conditioning system includes an intake unit configured to inhale an indoor air and an outdoor air. The intake unit includes an outdoor air inlet configured to introduce the outdoor air, an indoor air inlet configured to introduce the indoor air and a plurality of doors configured to selectively open the outdoor air inlet and the indoor air inlet. The intake unit further includes an auxiliary indoor air introduction part configured to introduce the indoor air. The auxiliary indoor air introduction part is configured to introduce a part of the indoor air existing on the side of the indoor air inlet.

Abstract: A method of inspecting an exterior elevated element of a building is provided. The method drills a hole into an interior space of the exterior elevated element of the building. The interior space of the exterior elevated element encompasses a plurality of wooden surfaces. The method passes a camera through the hole into the interior space of the exterior elevated element of the building. The method captures a set of one or more images from the wooden surfaces in the interior space of the exterior elevated element by the camera. The method analyzes the set of images to identify one or more of color differences of the wooden surfaces, color intensity differences of the wooden surfaces, and a shape and a size of any cracks on the wooden surfaces. The method determines the existence of wood rot in the interior space of the exterior elevated element based on the analysis.

Abstract: An air conditioner includes a detection unit configured to detect a load in a room, a notification unit configured to notify a user of information, and a control unit, in which the control unit causes the notification unit to notify the user that ventilation is necessary when a load condition indicating that a variation of the load detected by the detection unit is within a predetermined range in a first time period is satisfied.

Abstract: A front end of a steering grill from which air is discharged protrudes further than the front surface of a door assembly, and the steering grill is steered by a steering assembly, and thus conditioned air may be provided by a directed air movement to a long-distance target region, and since the front end of the steering grill protrudes further than the front surface of the door assembly, the occurrence of flow resistance as a result of a cabinet assembly or the door assembly interfering with the discharged air may be minimized, and the direction of the steering grill may be instantly changed, by means of steering, from any one direction to another among up, down, left, right, upper left, lower left, upper right, or lower right.

Abstract: A refrigerator drawer having a body having a front panel, a rear panel, two side panels, more than one pivotable dividers, each divider pivotable between use and non-use positions, the dividers capable of dividing the drawer body into more than one compartments, a ducted cover and/or a ducted bottom, the ducted cover and ducted bottom each having a channel connecting to more than one fans, and a temperature sensor located within each of the possible compartments is provided.

Abstract: An adjustment device designed to adjust a flow rate of a fluid flowing in a duct, including a body in which an adjustment valve is mounted, movable in rotation about an adjustment axis, the body having an area upstream of the adjustment axis and a downstream area opposite to the upstream area with respect to the adjustment axis, where the adjustment axis is equipped with connecting means which cooperate with at least one first control member positioned in the downstream area and a second control member positioned in the upstream area.

Abstract: 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.

Abstract: A blowing device of an air conditioner includes a case (20) connected to an air conditioner of a vehicle; a ventilating flow path (50) formed from an inlet port (50c) to an outlet port (50d) of the case (20); a first inclined portion (51) provided on the inlet port (50c) side of the case (20); a second inclined portion (52) provided on the outlet port (50d) side of the case (20); an intermediate portion (53) formed between the first inclined portion (51) and the second inclined portion (52) in the case (20); and an airflow direction changing device (40) provided in the ventilating flow path (50) and capable of changing an airflow direction of an inflow wind through the inlet port (50c) toward a space between the outlet port (50d) and the intermediate portion (53), wherein the airflow direction changing device (40) includes a plurality of fins (40f) inclined in conjunction with each other.

Abstract: An indoor unit of an air-conditioning apparatus includes a casing with air inlet and air outlet. A heat exchanger in the casing exchanges heat with air sucked through the air inlet, an air-sending fan blows the heat exchanged air through the air outlet, and a vertical air-directing plate in the air outlet sets a vertical air flow direction in which the heat exchanged air is blown. The casing has a front panel, a bottom panel, and a forward-facing panel connected to the bottom panel at an angle. The air outlet extends from the bottom panel to the forward-facing panel; a lower corner at which joins the bottom panel and an air-outlet side walk; and a forward-facing corner joins the forward-facing panel and the air-outlet side wall. The lower corner and the forward-facing corner each have an edge removed. A forward-facing corner edge-removal dimension smaller than a lower corner edge-removal dimension.

Abstract: A transportation refrigeration system includes a refrigeration circuit that includes a compressor, a condenser, a first expansion device upstream of a first heat exchanger and a second expansion device upstream of a second heat exchanger. The first heat exchanger includes a first cooling capacity that is different from a second cooling capacity of the second heat exchanger.

Abstract: Disclosed is an air conditioner (AC) indoor unit including a housing installed on the ceiling and having an inlet and an outlet provided around the inlet and having a pair of straight sections facing each other and a pair of curved sections facing each other; a heat exchanger provided inside the housing and arranged in a main flow path between the inlet and the outlet; a blower fan configured to suck in air through the inlet, allow the air to exchange heat with the heat exchanger, and discharge the air through the outlet; and an auxiliary flow path guiding an auxiliary air current to change a direction of an air current discharged from the outlet. The direction of the discharged air current may be controlled by sucking in air around the outlet or blowing air to the periphery of the outlet through the auxiliary flow path without a blade.

Abstract: The present invention relates to a system for heating and/or cooling and/or ventilating and/or illuminating a room, comprising a plurality of air-conditioning modules having a flat surface which faces the room and which is designed to dissipate heat and/or cold and/or fresh air to the room; at least one distribution module which is designed to provide the plurality of air-conditioning modules with a fluid carrier medium for heat and/or cold and/or fresh air; and a control device for controlling a quantity of heat and/or cold and/or fresh air; wherein the contours of the plurality of air-conditioning modules and the at least one distribution module are designed in such a way that the plurality of air-conditioning modules and the at least one distribution module form, by virtue of their assembly, a substantially flat and continuous surface.

Abstract: A shutter unit includes a plurality of shutters that are grouped into groups corresponding to one of a plurality of fans, the grouped shutters being arranged beside one another and positioned on a leeward side or a windward side of the corresponding one of the plurality of fans, the grouped shutters being capable of pivoting between an open position and a closed position, the plurality of fans being for sending wind to an inside of an electronic apparatus casing; a coupling member that couples the grouped shutters together so that the grouped shutters are pivotable; and a retaining member that retains the grouped shutters in a state of being in the open position and inclined with respect to a flow direction of returning wind returning from the inside of the electronic apparatus casing toward a side of the plurality of fans.

Abstract: The laser device of the present invention includes a first temperature sensor which is provided in a housing to detect the temperature of the portion to be cooled, a second temperature sensor and a humidity sensor which are provided outside the housing to respectively detect the temperature and humidity of the air outside the housing. The laser device further includes a judgment unit which judges the possibility of condensation forming on the portion to be cooled by the air outside the housing based on each of the detected results of the first temperature sensor, the second temperature sensor and the humidity sensor, and a notification unit which gives notification of the judgment result of the judgment unit, outside the housing.

Abstract: An air-conditioning indoor unit causes a flow of air blown out from a blow-out port to be diverted in a predetermined direction due to the Coand{hacek over (a)} effect. The air-conditioning indoor unit includes an airflow direction adjustment vane varying a blowout angle of blown air relative to a horizontal plane, a Coand{hacek over (a)} vane turning the blown air into a Coand{hacek over (a)} airflow along a bottom surface, and a control unit. The Coand{hacek over (a)} vane is provided in proximity to the blow-out port. The control unit executes an airflow direction automatic switching mode automatically switching between a Coand{hacek over (a)} effect use state in which the blown air is turned into a Coand{hacek over (a)} airflow along a predetermined surface and diverted in the predetermined direction, and a normal state in which the Coand{hacek over (a)} airflow is not created.

Abstract: An air blowing device 1 includes: a main body housing 2 to open a suction inlet 4a and a jet outlet 5a of an air; and an air blower 3 to be provided in a lower portion in the main body housing 2 and to circulate the air that is sucked from the suction inlet 4a towards the jet outlet 5a. The main body housing 2 is in a column shape from below to above, and the jet outlet 5a is formed in a slit shape in a vertically long rectangular shape along a side wall of the main body housing 2 and also is arranged to expel an air in an approximately transverse direction.

Abstract: A method of and system for automatically adjusting airflow is presented. A system includes a controlled supply register that has an airflow adjusting mechanism that controls an aperture through which air passes and a register sensor that senses a value of an environmental variable in system duct work. The register also includes a communication system and a processor system that controls the airflow adjusting mechanism. The system also includes a sensor platform that senses an environmental variable in a space and transmits and receives information. The system also includes a controller that receives information about the environmental variables and a desired set point for the environmental variable in the space. The controller determines a target airflow to achieve the desired set point and transmits information about the target airflow. The register receives information about the target airflow and controls the register adjusting mechanism to achieve the target airflow.

Abstract: Embodiments of the invention are directed to methods and systems for backflow prevention for computing devices. In an embodiment, a system of sensors, processors, and airflow stimulation devices, such as fans, are used to prevent backflow of high temperature gasses through a server housing. The backflow of high temperature gasses may be a result of a pressure differential between a region in which cooling gases are disposed and a region in which high temperature exhaust gasses are disposed.

Abstract: An environmental control system of a building utilizes lower vents which open into lower portions of rooms of a building, and upper vents which open into upper portions of rooms of the building. When the system is operating in a heating mode, heated air is delivered into the upper portions of the rooms through the upper vents and air is removed from the rooms through the lower vents. When the system is operating in a cooling mode, cool air is delivered into the rooms through the lower vents, and air is removed from the rooms through the upper vents. Operating the heating and cooling modes in this fashion provides the most efficient operation of the heating and cooling system. A switching unit is used to selectively couple the inlet and outlet of an environmental control system to the upper and lower vents.

Abstract: An apparatus for circulating air includes a barrel through which the air is circulated, where the barrel includes a body having a first end and a second end, and a coil positioned near the second end of the barrel for controlling when the air is permitted to circulate through the barrel. In another embodiment, an apparatus for circulating air includes a grating through which the air is circulated and an actuator for controlling when the air is permitted to circulate through the grating, wherein the actuator is activated automatically in response to changes in ambient temperature without requiring a supply of electricity.

Abstract: A system enclosure ventilation monitoring system includes a controller having an enclosure temperature input configured to receive signals indicating internal temperatures of the system enclosure, an air circulating device speed input configured to receive signals indicating operating speed of at least one air circulating device, and a damper position input configured to receive a damper position signal and an output. The controller is configured and disposed to set damper position through the output based on at least one of the air circulating device speed input and the enclosure temperature input.

Abstract: The present invention is related to a device for controlling an airflow field and a method thereof. The method is included of: supplying a cooling airflow into an air conditioning space, smoothly altering flux of the cooling airflow, retrieving a backflow temperature of the cooling airflow, and comparing variation of the backflow temperature with a flux variation of the cooling airflow. Only part of the air conditioning space is covered in the circulation range of the cooling airflow if the backflow temperature is varying in the same tendency as the flux variation. The device is included of an air conditioning cabinet and a chiller. The air conditioning cabinet is included of a coil pipe, a fan corresponding to the coil pipe and a processing module electrically connected to the fan. The chiller is connected to the coil pipe to supply cooling water in to the coil pipe.

Abstract: In a central air-conditioning system, a distribution mechanism distributes warm air or cool air generated by an air-conditioning unit to a plurality of rooms in a house. A control device controls the distribution mechanism to adjust a temperature of each room. A plurality of room terminals are provided as a device each dedicated to a room. Each room terminal receives an input of a preset temperature for the room and detects temperature of the room, and outputs the received preset temperature and the detected room temperature to the control device. The control device judges whether or not a specified room terminal is mounted in a specified room, based on a transition of control of the distribution mechanism in the specified room and a change in the detected temperature. The control device stops air-conditioning the specified room when judged that the specified room terminal is not mounted in the specified room.

Abstract: A system for protecting an agricultural field from frost damage, comprising: one or more induced flow apparatuses, each comprising an induced flow fan that has a primary air flow inlet, a primary air flow outlet, a secondary flow inlet and a secondary flow outlet wherein said primary air flow induces a larger volume of secondary air flow; a primary air flow impeller, powered by a motor, and a duct arrayed to conduct the primary flow from the primary flow impeller to the induced flow fan. The induced flow apparatuses are disposed to induce the flow of warmer, upper-level, air into a lower level, displacing lower, cooler, air in an agricultural field.

Abstract: The invention relates generally to the field of airflow boosting devices. In particular, the invention relates to a booster fan for installation into a vent opening of a duct system in a forced air circulation and delivery system. In an embodiment, the booster fan includes a register plate for covering a vent opening. An opening or openings on the register plate provide an air outlet. A housing is secured to the register plate for enclosing a crossflow fan therein. The crossflow fan is disposed adjacent and spaced from the register plate and resiliently supported at both ends. A motor is resiliently connected to the crossflow fan. The housing also has an aperture for providing an air inlet communicating with the duct system. Preferably, two arcuate air deflection panels are provided in the housing for connecting the air inlet and air outlet to form a guided air passageway.

Abstract: A method and a system for controlling ventilation of an indoor area of a building, comprising the steps of: ventilating the indoor area by means of mechanical ventilation and natural ventilation according to a ventilation mode selected among a plurality of ventilation modes, a set of adjustable control parameters (31; 32; 33; 34; 35) and at least one measurement value from a sensor, wherein each ventilation mode is associated with the set of adjustable control parameters (31; 32; 33; 34; 35), each having an adjustable value selected among a group of mode dependent adjustable values, and/or a set of fixed control parameters (34) each having a mode dependent fixed value, and controlling the mechanical ventilation and the natural ventilation by comparing the measurement value from the sensor with a corresponding value of the control parameters of the ventilation mode such that a desired indoor climate defined by the ventilation mode is obtained.

Abstract: A method performed by a zone controller for a zone of a building for improving energy efficiency in a heating, ventilation, and air conditioning (HVAC) system is provided. The method includes operating in a ventilation mode. A temperature of the zone and outside air conditions for the building are monitored. A determination is made regarding whether to switch from the ventilation mode to an economizing mode based on a first set point for the temperature of the zone and based on the outside air conditions. The first set point is determined based on a second set point for the temperature that is different from the first set point. A determination is made regarding whether to activate the HVAC system based on the second set point.

Abstract: A ventilation system utilizing fans to bring air into a building and/or exhaust air out of the building powered at least in part by solar panels that can be quickly and easily mounted on the building, such as on roof vents, windows, and the like adjacent to the fans. A sensor may be operatively connected to a controller or logic circuit to measure environmental factors to determine whether to activate the fans. The ventilation system is configured to be a modular device with versatile fasteners for easy installment in windows, attics, or roof tops.

Abstract: The present invention is a ceiling-mountable enclosure comprising a support frame, a lightweight inner enclosure, and a back box configured for installation in a suspended ceiling. The apparatus of the present invention includes a removable device door configured to be mounted to the support frame. Electrical and signal wires are routed through conduit access plates provided at the back box. Electrical or other equipment is mounted to a removable device door. The removable device door with mounted equipment is attached to the support frame, then rotated upwards to fit flush with the ceiling and fastened to the support frame. A variety of power receptacles are provided that are configured to be mounted to either the back box, the inner enclosure, or the removable device door. The enclosure includes a cooling system comprising an electrically powered fan and air ducts integrated into the inner enclosure. The air ducts include a textured surface that improves the air flow through the ducts.

Abstract: A fan type temperature control method and device are provided. The device includes a fan unit including a plurality of fans and cooling an apparatus to be cooled, power supplies (v1,v2) supplying power for the fans in the fan unit, and a fan control unit which controls the fans as follows: when temperature t of the apparatus is lower than critical temperature t1 of a first temperature detect switch (k01), all fans stop; when t is higher than t1 and lower than critical temperature t2 of a second temperature detect switch (k02), all fans rotate at half speed; when t is higher than t2 while lower than critical temperature t3 of a third temperature detect switch (k03), a first fan part (M1) rotates at full speed and a second fan part (M2) stops; when t is higher than t3, all fans rotate at full speed.

Abstract: A fan includes a hub, several fan blades, and a motor that is operable to drive the hub. A motor controller is in communication with the motor, and is configured to select the rate of rotation at which the motor drives the hub. The fan is installed in a place having a floor and a ceiling. An upper temperature sensor is positioned near the ceiling. A lower temperature sensor is positioned near the floor. The temperature sensors communicate with the motor controller, which includes a processor configured to compare substantially contemporaneous temperature readings from the upper and lower temperature sensors. The motor controller is thus configured to automatically control the fan motor to minimize the differences between substantially contemporaneous temperature readings from the upper and lower temperature sensors. The fan system may thus substantially destratify air in an environment, to provide a substantially uniform temperature distribution within the environment.

Abstract: The present application discloses a method of converting a single zone HVAC system to a multi-zoned HVAC system. More specifically, the present application discloses coupling at least one interface module to at least one controller of a heating unit, cooling unit, and blower assembly. Further, at least one thermostat may be positioned within each desired zone of a multi-zoned structure. The user may then position at least one register on at least one terminus of a duct within each zone. Thereafter, each thermostat within each zone is associated or linked via a communication channel or network with at least one register within the same zone, thereby forming at least one thermostat/register regime within each zone of a structure. The interface module may then be associated with the various thermostat/register regimes.

Abstract: A temperature control system includes a temperature switch, an air outlet valve, an air inlet valve, and a control device. The temperature switch is utilized to detect and determine the external temperature and internal temperature of a container. The control device receives a first and a second signal and determines whether the air outlet valve and the air inlet valve are opened or closed. When the control device receives the first signal, the control device opens the air outlet valve and the air inlet valve, when the control device receives the second signal, the control device closes the air outlet valve and the air inlet valve.

Abstract: A blower having counter rotating fan blades for generating uniform air flow across a heat sink, which maximizes the cooling efficiency of the heat sink. The counter rotating fan blades may individually controlled to optimize performance of the blower. Only one set of fan blades may be used for low temperature conditions, thereby consuming less power and reducing acoustic noise, while both sets of fan blades may be used for high temperature conditions, thereby maximizing heat transfer. The blower may be configured to operate one or both sets of fan blades at a desired operating fan speed based on one or more pre-determined conditions. The pre-determined conditions include at least one of temperature, acoustic, and power levels and or measurements of one or more components of the computer system.

Abstract: A ventilation system utilizing fans to bring air into a building and/or exhaust air out of the building powered at least in part by solar panels that can be quickly and easily mounted on the building, such as on roof vents, windows, and the like adjacent to the fans. A sensor may be operatively connected to a controller or logic circuit to measure environmental factors to determine whether to activate the fans. The ventilation system is configured to be a modular device with versatile fasteners for easy installment in windows, attics, or roof tops.

Abstract: A system and method for modulating the speed of a fan over a period of time to maintain the space temperature of a room. The system and method involves the use of a CRAC unit or a fan coil unit. In an embodiment, the system is comprised of said CRAC or fan coil unit, a variable frequency drive, fan motor, fan, room temperature sensor, and supply air temperature sensor. Based on the collected room and supply air temperature values, a novel control sequence determines how to best modulate the speed of the fan motor over a period of time. Using this system and control method, the space temperature can be controlled at the desired temperature.

Abstract: Provided herein is an HVAC controller that receives blower volumes for different operating modes per HVAC zones, a HVAC system including the same and a method of operating the controller. In one embodiment, the controller includes: (1) an interface configured to receive blower volumes for each zone of the HVAC system that correspond to operating modes thereof of the HVAC system, wherein the blower volumes are received via a single graphical user interface and (2) a processor configured to direct operation of a circulation fan of the HVAC system based on at least one of the blower volumes.

Abstract: An apparatus for controlling grille aperture ratios of a plurality of air transfer grilles which are installed in a room, includes a determining unit for determining target grille air volumes of air blowing to the racks, for determining simulation air volumes of air blowing from the air transfer grilles on the basis of the target grille air volumes so that each of air of the target grille air volumes are blown to the racks, and for determining grille aperture ratios for each of the air transfer grilles on the basis of the plurality of simulation air volumes so that each of the amounts of air blowing from the air transfer grilles is replaced by each of the simulation air volumes, and a controller for controlling each of the grille aperture ratios of the air transfer grilles on the basis of each of the determined grille aperture ratios.

Abstract: A precise air conditioning system fan control method and apparatus, and a precise air conditioning system are provided. The method includes: obtaining an actual indoor temperature, and calculating a temperature difference between the actual temperature and a preset target temperature; comparing the temperature difference with threshold intervals to obtain a threshold interval where the temperature difference is located, where each threshold interval corresponds to a fan quantity value; obtaining a fan quantity value corresponding to the threshold interval where the temperature difference is located according to correspondence between the threshold intervals and fan quantity values; and controlling N fans among all the fans to run at a first speed, and controlling fans other than the N fans among all the fans to run at a second speed, where the first speed is higher than the second speed.

Abstract: Systems and methods are disclosed for reducing the usage of a ventilation system. For example, one or more of the exemplary systems comprise a thermostatic controller that has at least two settings for the delay occurring between turning the ventilation system off and then turning the system back on. One setting being for a first interval and at least a second setting for a second interval that is longer than the first interval. A processor is in communication with the thermostatic controller and is configured to evaluate one or more parameters including at least the temperature outside the structure conditioned by the ventilation system. The processor is further configured to determine whether to adopt the first interval or the second interval based upon the values of the parameters.

Abstract: A damper for controlling fluid flow may include a main body, a stator that includes a plurality of stator blades, and a rotor moveably connected to the stator and including a plurality of rotor blades. The damper may also include a rotation mechanism mounted to the main body to move the rotor between an opened position and a closed position. The shape of each of the plurality of stator blades and rotor blades may combine to form a shape such that the velocity of the fluid is increased thereby reducing or eliminating back pressure when the rotor is in the opened position.

Abstract: A ventilation fan unit with a heater, including: a frame with an opening provided at the underside of the frame; a cover having an air outlet and an air inlet provided at the opening of the frame; a snail-shaped casing with an air exit provided in the frame; a circulating fan enclosed in the snail-shaped casing; and a heating portion including a spiral heater mounted at the air exit of the snail-shaped casing, wherein the heating portion is communicated with the circulating fan through the air exit, wherein an axis of a spiral shape of the heater is in parallel with a rotation axis of the circulating fan, wherein the rotation axis of the circulating fan is located obliquely above the axis of the spiral shape of the heater.

Abstract: Disclosed is a cooling blower control device and method for a high-voltage battery, by which a cooling blower used in a high-voltage battery is efficiently controlled using fuzzy control. To this end, the cooling blower control device includes a temperature (or first) sensor configured to sense an internal temperature of a battery pack assembly, and a current sensor configured to sense an output current of the battery pack assembly. A fuzzy controller performs fuzzy control by using outputs of the temperature sensor and the current sensor as inputs to output a cooling blower's duty ratio, and a pulse-width modulation (PWM) controller performs PWM control by using an output of the fuzzy controller as an input to output a control signal for driving the cooling blower.

Abstract: A livestock production building includes an automatically controllable ventilation system which provides ventilation to livestock containment rooms. Incoming air may be heated, cooled and/or filtered, and is mixed and tempered before being delivered to livestock rooms. Substantially all exhaust air is filtered to mitigate environmental impact.

Abstract: An inventive cooling device for the air conditioning of an examination area of a medical examination device includes a temperature detection device for detecting a temperature in the examination area, an air conditioning device for producing air-conditioned air, an air discharge device arranged within the examination area, an opening directed toward the examination area to let out air-conditioned air and an air duct to transport air-conditioned air to the opening in the air discharge device and a control unit connected to the temperature detection device and the air-conditioning device to control the air-conditioning device based on data detected by the temperature detection device. The cooling device automatically determines and regulates a temperature in the examination area with fresh, air-conditioned air which has a positive influence on the well-being of the patient in the examination area.

Abstract: Climate regulation within an enclosure (e.g., a case of a workstation or a rack or cabinet of servers) may be achieved through a climate regulator featuring several selectable climate regulator settings (e.g., a variable-speed fan array). Controllers of such climate regulators often select climate regulator settings based on current conditions inside the enclosure, such as the temperature of one or more processors operating within the enclosure. However, such control fails to account for the climate of air outside the enclosure that is drawn in to provide climate regulation, even though the climate properties of inlet air may significantly affect the effectiveness of climate regulation. Accordingly, a controller of a climate regulator may be configured to detect inlet climate properties of air directed into the enclosure, and to map the inlet climate properties (alone or in combination with other factors) to a selected climate regulator setting for the climate regulator.

Abstract: For use in an imaging system having a plurality of adjacent display units, the improvement comprising a thermal actuator in at least one of the display units for moving a screen thereof away from a chassis thereof when the said display unit exceeds a predetermined temperature, so as to prevent mechanical interference between the adjacent display units.

Abstract: An HVAC and control system with an economizer mode and continuous damper position verification. Three dampers are provided with a control module that accepts inputs from multiple temperature sensors and a user, and which monitors and reports the position and off-normal operation of multiple dampers.

Abstract: A retrofitting flap damper assembly system for cone type damper variable air volume (VAV) boxes includes specifically modified mounting hardware to secure a flap damper assembly inside an existing cone type damper VAV box. A flap damper having a housing with a front opening and a rear opening is secured between an existing cone type damper VAV inlet and at least one back plate. A plurality of bolts secure the flap damper in place using back plate and the VAV box housing.

Abstract: A ventilation system utilizing fans to bring air into a building and/or exhaust air out of the building powered at least in part by solar panels that can be quickly and easily mounted on the building, such as on roof vents, windows, and the like adjacent to the fans. A sensor may be operatively connected to a controller or logic circuit to measure environmental factors to determine whether to activate the fans. The ventilation system is configured to be a modular device with versatile fasteners for easy installment in windows, attics, or roof tops.