Abstract: A lighting structure includes a junction box that has a cavity, and a mounting plate that has an inner section and a perimeter section. The junction box is attached to the mounting plate, and the mounting plate has a wire opening therethrough for routing an electrical wire from the junction box to a light source. The perimeter section of the mounting place is outside the junction box.

Abstract: Controlling device for controlling a lighting system including at least one light fitting, where said controlling device is linked to said lighting system, and where the controlling device includes a switching mechanism intended to turn on and turn off the lighting system, an adjusting mechanism intended to adjust the light intensity of the lighting system, and an interface, able to be actuated by a user in order to control the turning on and turning off, as well as adjust the light intensity.

Abstract: A downlight fixture includes: a light source board arranged to emit optical light; an electrical connector electrically connected with the light source board for providing power to the light source board; a metallic cup shaped heat sink attached with the light source board; a plastic housing attached with the metallic cup shaped heat sink; and a heat sink, attached with the plastic housing. The metallic cup shaped heat sink, the plastic housing, and the heat sink are arranged to dissipate heat generated by the light source board.

Abstract: In one aspect, a lighting fixture includes a pole having a first section and a second section. The second section of the pole includes a radio frequency (RF) transparent material. The lighting fixture also includes a light housing coupled to the first section of the pole and a light source in the light housing. The lighting fixture further includes an antenna assembly in the second section of the pole. The antenna assembly is configured to wirelessly communicate with a user equipment device (UE). The lighting fixture also includes a communications backhaul interface coupled to the antenna assembly.

Abstract: A door for a dishwasher appliance is provided herein. The dishwasher door may include an internal panel, an external panel, and a light source. The internal panel may define an inner face and an outer face. The internal panel may define a light channel from the inner face to the outer face. The external panel may extend across the internal panel in front of the light channel. The external panel may define an inner face directed toward the outer face of the planner internal panel. The light source may be positioned behind the internal panel. The light source may be directed at the light channel.

Abstract: A powered tool may be improved by mounting a light thereto. Some examples of a powered tool include a polisher tool adapted to polish and/or buff a work surface. Other examples of a power tool include various rotary, orbital, reciprocating, or other types of handheld tools. In various examples, a bracket can secure a light to a polisher or buffer tool so that the work surface can be directly illuminated to improve the efficiency and comfort of the tool operator. The bracket can be repositioned on the hand tool to optimize light direction to enhance the effectiveness of the hand tool.

Abstract: Steam generating system comprising a steam generator and a steam drum, wherein the downpipe, coming from the steam drum, passes through the water jacket of the steam generator above the heating tube or tubes of the steam generator and extends therein as far as the water jacket volume region which is situated below the heating tube or tubes.

Abstract: A fuel-fired device can include an air-moving device that mixes air and a fuel to generate a fuel-air mixture. The fuel-fired device can also include an air box that provides the air to the air-moving device, and a fuel valve that provides the fuel to the air-moving device, where the fuel valve includes a tracking port coupled to the air box, where the tracking port detects a pressure of the air box. The fuel-fired device can further provide a pressure-regulating device disposed between a pressurized component and the tracking port of the fuel valve. The flow regulating device can control, during an ignition phase of operation, an amount of the fuel provided by the fuel valve to the air-moving device.

Abstract: A flame scanner (10) includes terminals (32) for connection to a controller (50) The flame scanner includes a photodiode (14) to generate a detection signal; and a signal conditioner (20) coupled to the photodiode, the signal conditioner to generate an output signal across the terminals, the output signal emulating an output of an ultraviolet tube flame scanner.

Abstract: A gas appliance includes a burner, a gas valve, and a control device, wherein the gas valve includes a valve body, a flow regulator, a hot film anemometer, and a stepper motor. The valve body communicates with the burner and a gas source. The flow regulator is driven by the stepper motor to change a gas flow rate supplying to the burner. The hot film anemometer is disposed in the valve body and includes a probe exposed to the outlet passage. The control device executes a control method for the gas valve: sensing the gas flow rate in the outlet passage with the hot film anemometer; comparing the gas flow rate sensed by the hot film anemometer with a predetermined gas flow rate, and controlling the stepper motor to drive the flow regulator based on the comparison result, whereby to stabilize the gas flow rate.

Abstract: Pilot assemblies comprising a fire path tubing and pilot tubing in fluid communication through a pilot nozzle for elevated flare stacks are disclosed. A plurality of flame segments is generated using a hot surface ignition element or a spark igniter in the fire path tubing and ignites fuel/air mixture flowing through the pilot tubing into a pilot nozzle to produce a reliable pilot flame. The pilot flame ignites the waste gases flowing out of the flare tip of elevated flare stacks. Methods for operating the pilot assemblies are also disclosed.

Abstract: Injector assemblies (12) and ducting arrangement (20) including such injector assemblies are provided. The injector assembly may include a reactant-guiding structure (16) arranged to convey a flow of reactants (19) into the combustion stage and means for injecting (24, 25, 26) a flow of air (22) into the combustion stage. The flow of air injected into the combustion stage may be arranged to condition interaction of the flow of reactants injected into the combustion stage with a cross-flow of combustion products (21), as the flow of reactants is admitted into the combustion stage.

Abstract: A method of delivering fuel from a fuel nozzle of a gas turbine engine includes carrying by a fuel passageway of the fuel nozzle a film of pressurised fuel, the fuel passageway being disposed radially outwardly from an air passageway carrying a flow of pressurised air, and directing the film of pressurised fuel onto an inside surface of an exit lip of an outer wall of the fuel passageway and thinning the film of pressurised fuel as it travels therealong. The exit lip generally increases in diameter as it extends downstream.

Abstract: A portable fire pit is provided that includes a frame, a support structure, and a mesh. The frame can include a plurality of upwardly extending rods and cross-bars extending between the upwardly extending rods. The support structure can include a plurality of supports having an upper wall, a base, and an aperture sized to receive an upwardly extending rod of the frame. The support structure can extend around a periphery of the frame.

Abstract: A heating power control system includes a storage that stores cooking information including a cooking process being executed using a cooking appliance, a receiver that receives detection information indicating an absence or a presence of a user of the cooking appliance, and a controller that determines whether or not the user is absent for a predetermined period of time based on the detection information, determines, based on the cooking information, whether or not the cooking process is a heating process when the user is determined to be absent for the predetermined period of time, determines, based on the cooking information, a control method of controlling heating power of the cooking appliance when the cooking process is determined to be a heating process, and controls the heating power of the cooking appliance by the control method.

Abstract: According to one example, a cooking vessel support grate includes a grate with at least two downward extending legs, with each leg having a lower surface. The cooking vessel support grate further includes an upward extending cavity disposed on the lower surface of each of the legs, and an elastic member attached to each of the legs. The elastic member has an upper portion that at least partially fills the cavity of the respective leg. The elastic member further has a lower portion that projects downward from the lower surface of the respective leg and that covers the surface area of the lower surface of the respective leg.

Abstract: A device for covering a stove top. The device for covering a stove top includes a frame. The frame has an upper side and a lower side. The frame is sized to rest on a stove top, covering burners of that stove top. A cover is attached on the upper side of the frame and forms an interior cavity. The interior cavity is accessible via the lower side of the frame. A handle is disposed on a lateral edge of the frame.

Abstract: A support structure for a heating or cooling system includes a plurality of projections designed to be capable of retaining one or more thermal elements positioned adjacent thereto. The projections are positioned so as to form a first set of substantially parallel undulating channels, each channel having one of the projections forming at least a part of the inner radius of each undulation, with each projection having a recess formed in a side wall thereof facing said channel. The undulations of the channel ensure that a thermal element positioned in the channel will make contact with the projections each time it has to bend around one, without requiring spacing of the projections to squeeze the thermal element. The thermal element can thus be held securely without any play (unwanted lateral movement) in a channel that is slightly wider than the thermal element.

Abstract: The instant hot water system CONTROL PANEL for new homes is an on-demand controller for a common residential water pump, installed at the hot water supply/recirculation hot water pipe line back to the regular residential gas or electric water heater, with push button switches in every bathroom, kitchen, laundry room etc. to pump hot water at the touch of said button; from the water heater to faucets throughout the house and dispense the hot water to the user, with no waiting time and very minimal cold water waste down the drain because the hot water has already reached every single faucet in the house as the users with the push of a button demanded it.

Abstract: A package air conditioning unit includes a housing, a condenser portion including a condenser located in the housing and an evaporator portion located in the housing. The evaporator portion includes an evaporator in fluid communication with the condenser and a vane-axial flow fan rotatable about a fan axis to power airflow from a conditioned space, across the evaporator and back toward the conditioned space.

Abstract: A packaged terminal air conditioner unit (PTAC) and methods for operating the same are provided. A PTAC controller is operably coupled to a proximity indication device for detecting that a proximity trigger condition exists and is configured for adjusting an operating parameter of the PTAC to adjust an outlet temperature of a flow of discharge air in response to determining that the proximity trigger condition exists. The proximity trigger condition may exist when a proximity sensor detects an occupant close to the PTAC, when a user input button is activated, or when a voice command is received.

Abstract: An outdoor unit includes a heat exchanger, a blower fan, an electronic board on which a heat-generating element is mounted, a housing, and a heatsink. The housing includes a partition plate partitioning the inside of the housing into a heat exchanger chamber in which the heat exchanger and the blower fan are placed and a machine chamber in which the electronic board and a compressor are placed, and a portion of the partition plate has an opening. The heatsink includes a main plate placed to cover the opening from the heat-exchanger-room-side of the partition plate and heat-releasing fins projecting from the main plate to the blower fan side, and a portion of the main plate comes into contact with the heat-generating element via the opening. The greater the amounts of heat transferred from the heat-generating element the heat-releasing fins, the larger the heat-releasing fins.

Abstract: An air conditioner provided which has: a main refrigerant circuit including a compressor, a heat source side heat exchanger, a first expansion valve, and a utilization side heat exchanger and configured such that refrigerant flows in the main refrigerant circuit; a sub refrigerant circuit including a cooling member configured such that refrigerant branched from the main refrigerant circuit flows in the cooling member and configured such that refrigerant branched from the main refrigerant circuit flows in the sub refrigerant circuit; and a heat generator to be cooled by the cooling member, wherein a pipe in which part of refrigerant discharged from the compressor flows is connected to the cooling member of the sub refrigerant circuit.

Abstract: An HVAC system is provided. Embodiments of the present disclosure generally relate to heat exchangers having tubing with a reduced diameter compared to traditional systems. In one embodiment, a ducted HVAC system comprises an outdoor heat exchanger with tubing that has an outer diameter of eight millimeters (8 mm) or less and an indoor heat exchanger with tubing that has an outer diameter of nine millimeters (9 mm) or less. Additional systems, devices, and methods are also disclosed.

Abstract: The invention relates to an insert element for inserting into a device for humidifying, cleaning and/or cooling a fluid, in particular a gas, such as, for example, air, said insert element comprising an insert body (10) which can be wetted with a liquid, in particular water, and through which a gas, in particular air, can flow and which has a flow inlet side and a flow outlet side and, between said sides, is provided with regions which can be wetted by the liquid and can be exposed to the fluid. The insert body (10) has a multi-layered design and has a number of undulated grid-type plate elements (12) which bear against one another, are limited by an edge (14, 16) and are provided with elevations and depressions. A film-type plate element (19, 19?) is mounted between at least two adjacent grid plate elements (12). The film-type plate element (19, 19?) is perforated.

Abstract: A dehumidifying system includes an enclosure having at least one opening disposed at a first end and at least one opening disposed at a second end. A plurality of air paths that extend through the enclosure and are separated from one another by partitions along at least a portion of the enclosure. A dehumidifier evaporator is disposed within the enclosure and configured such that at least one of the air paths is disposed to flow through the dehumidifier evaporator. The dehumidifier evaporator includes a dehumidifying coil and a heat pipe assembly at least partially wrapping around the dehumidification coil.

Abstract: A humidifying air purifier includes a body frame having an opened front and rear, a fan housing coupled to a rear end of the body frame and having a fan intake, a housing cover coupled to a rear end of the fan housing to accommodate an air blowing fan, and an air discharge port formed at an upper end of the fan housing and an upper end of the housing cover. A waterwheel motor is installed on a front surface of the fan housing and positioned outside the fan intake, a driving gear is coupled to the waterwheel motor, a door assembly is configured to be pushed into or drawn out from a front end of the body frame, a water tub is accommodated in a lower side of the door assembly, and a humidifying filter assembly is inserted into the water tub.

Abstract: A humidifying air purifier includes a door assembly supported and configured to be selectively drawn out of a front side of a cabinet and drawn into the front side of the cabinet to respectively open and close an inner portion of the cabinet. The door assembly includes an accommodation portion configured to support an air filter and a humidifying device which are both drawn out of and into the humidifying air purifier with the door assembly.

Abstract: A humidifying air purifier includes a cabinet having an opening portion formed in an upper portion thereof, and a scroll housing disposed below the opening portion in the cabinet with an air blowing fan disposed in the scroll housing. The scroll housing may include a rounded first guide surrounding a portion of an outer periphery (or circumference) of the air blowing fan; a second guide extending from one end portion of the first guide toward the opening portion; a third guide extending from a cutoff portion formed at the other end portion of the first guide toward the opening portion and inclined in a direction away from the second guide toward the opening portion; and an extension plate extending horizontally from an upper end portion of the third guide in a direction away from the second guide and positioned below the opening portion.

Abstract: An air purifier includes a display mounted between a front panel of a cabinet of the air purifier and an upper panel of the cabinet. The front panel includes a door which is configured and supported to be drawn in to the cabinet toward the display or drawn out from the cabinet away from the display. A display module including the display is disposed below the upper panel.

Abstract: A gas-fired atmospheric pressure steam humidifier having high efficiency and ultra-low NOx(3) emissions is disclosed. In some examples, the gas-fired humidifier can have an efficiency of greater than 90 percent and a NOx(3) output of less than 20 parts per million (ppm). In one aspect, the humidifier includes a secondary heat exchanger having a first heat exchange section for pre-heating combustion air and a separate second heat exchange section for pre-heating make-up water, wherein the first and second heat exchange sections are in heat transfer communication with exhaust gases generated by the gas-fired burner and combustion blower assembly. In some examples, the first heat exchange section includes orifices for enabling flue gas recirculation.

Abstract: A self-contained pre-manufactured air unit for installation on a roof of a building and method of operation thereof has a relief passage for connection to a building to receive relief air from the building when air pressure within the building exceeds a pressure of ambient air. The relief passage is independent of an air circulation system and is located to exhaust relief air over the condenser coil to ambient air through at least one condenser fan, thereby decreasing a temperature of a refrigerant in the condenser coil.

Abstract: A more simple and convenient assembly and disassembly ventilation device is disclosed, comprising a housing having an receiving space therein, both sides of which are provided with an air inlet and an air outlet communicating with the receiving space; a plurality of positioning member disposed on the inner wall of the top of the housing; a fan module detachably disposed in the receiving space of the housing and fastened to the positioning member; and a power control device disposed in the receiving space with its shell connected to the inner wall corresponding to the housing in a detachable manner. The power control device is electrically connected with the fan module, and has a wire-arranging element for fixing the electric wires of the fan module.

Abstract: The present disclosure is directed to systems and methods for maintaining an environment within the interstitial space between a cleanroom worker and a cleanroom garment worn by the cleanroom worker. An air mover draws relatively cool air from the external cleanroom environment and discharges the air through one or more diffusers positioned in the interstitial space between the cleanroom worker and the cleanroom garment worn by the cleanroom worker. The one or more diffusers are positioned proximate the body of the cleanroom worker. Control circuitry monitors the temperature and relative humidity within the cleanroom garment and selectively controls the operation of the air mover to maintain a comfortable environment within the cleanroom garment even when PPE such as splash aprons, boots, gloves, and protective headgear are donned by the cleanroom worker. Reducing perspiration beneficially reduces the likelihood of contamination within the cleanroom environment.

Abstract: A composite ion exchange membrane is made by combining ionomer with porous polyolefin, such as polyethylene or polypropylene. The composite ion exchange membrane may be used in the core of an energy recovery ventilator. The core of the energy recovery ventilator may comprise corrugated or pleated supports for supporting the composite ion exchange membrane. The air flow into the energy recovery ventilator may be modified to actively create non-laminar flow.

Abstract: With respect to atmospheric steam generating humidifiers, the present disclosure resolves the problem of end-users not adjusting the drain interval of the humidifier by using an electronic controller to automatically choose an appropriate drain interval without requiring any user input. The electronic controller accomplishes this by receiving input data from a sensor that measures a water quality parameter, automatically determining a drain interval based on the received data, and sending an output control signal to a drain water control valve to execute a drain event in accordance with the drain interval. In some examples, the electronic controller utilizes a look-up table correlating the water quality parameter to a total dissolved solids or cycles of concentration value.

Abstract: A refrigeration system includes a plurality of utilization units provided for one air conditioning target space, a refrigerant leakage sensor that detects a leakage of the refrigerant in a lower part of the air conditioning target space, and a control unit. In a case where the refrigerant leakage sensor detects the refrigerant leakage, the control unit performs detection standby control on the utilization units such that the supply of the refrigerant to utilization-side heat exchangers is temporarily stopped. In a case where the refrigerant leakage is detected based on the state quantity of the refrigerant corresponding to the utilization units under the detection standby control, the control unit stops the use of the utilization unit in which the refrigerant leakage has been detected.

Abstract: According to certain embodiments, a system comprises a controller and an HVAC system with components comprising an evaporator unit comprising an evaporator coil, an indoor fan, and a discharge air duct and a condenser unit comprising a compressor, a condenser coil, and an outdoor fan. The system is configured to determine that a first or a second level of evaporator coil freeze risk is present and to communicate an instruction to the HVAC system with a first or a second action to counteract the freeze risk. For example, in certain embodiments, the actions comprise changing the indoor fan speed, changing the compressor speed, and changing the outdoor fan speed.

Abstract: An HVAC system is provided. Embodiments of the present disclosure generally relate to an HVAC system in which multiple indoor units are coupled to central outdoor unit, where at least one of the indoor units is configured to provide conditioned air through ductwork and at least one indoor unit is configured to provide conditioned air without ductwork. Moreover, a gas furnace can be provided in the system, for harsher environments that benefit from more robust heating. Additional systems, devices, and methods are also disclosed.

Abstract: Capabilities of a chiller water plant are modeled using operational data, equipment data, and system configuration data enabling changes to be made to the configuration data and report the resulting changes in performance of the model.

Abstract: A heating, ventilation, and air conditioning (HVAC) system is configured to receive a signal from a thermostat. The signal instructs the HVAC system to operate a component in a partial load mode. The HVAC system is further configured to determine that the component has exceeded its operating envelope. In response to determining that the component has exceeded its operating envelope, the HVAC system is configured to operate the component according to an override configuration. The override configuration overrides the signal to operate the component in the partial load mode.

Abstract: Provided is a management apparatus, which is to be connected to a device, and is configured to manage the device. The management apparatus includes: a display unit configured to display a state of the device; and a wireless communication unit configured to wirelessly communicate to and from a mobile terminal. When a distance between the mobile terminal and the management apparatus has become smaller than a threshold value, the management apparatus displays on the display unit management program information on a management program for managing the device.

Abstract: An opening and closing device includes a casing that defines an air passage, a slide door that includes a door main body slidable to open or close the air passage, and a sliding gear that is disposed on one side of the door main body in its width direction and includes first teeth in a sliding direction, and a drive gear that is rotatable around its axis line extending in the width direction and that includes second teeth in a circumferential direction around the axis line such that the first teeth and the second teeth are arranged in engagement with each other. When the drive gear rotates, a driving force is transmitted from the drive gear to the slide door through the sliding gear to slide the slide door. The door main body is restricted from shifting in the width direction due to the rotation of the drive gear.

Abstract: In some embodiments, a connector includes a housing, a handle comprising a graspable portion extending from the housing that can be grasped and manipulated to by a user, and a clamping portion disposed within the housing that is configured to move when the graspable portion is manipulated, and a support disposed within the housing, the support having a first surface, wherein the clamping portion of the handle and the first surface of the clamp are configured to attach a damper assembly jackshaft to an actuator assembly quickly and without the use of tools. A damper assembly using a connector and a method of attaching an actuator assembly to a damper jackshaft are also described.

Abstract: Disclosed is an air deflector moving mechanism. The air deflector moving mechanism includes an air deflector (1) and a driving mechanism. The air deflector (1) is in a drive connection with the driving mechanism and moves under a driving action by the driving mechanism. The driving mechanism includes a rotary column (2). A driving groove (3) extending in an axial direction is provided circumferentially on an outer periphery of the rotary column (2). The air deflector (1) is provided with a driving head (4) disposed in the driving groove (3). Also disclosed is an air conditioner including the air deflector moving mechanism.

Abstract: An air conditioner front panel with two-layer structure for increased structural strength and cosmetic durability includes a support frame and a protective cover. The support frame has a mounting bracket. The mounting bracket has a front surface and a rear surface. The protective cover is made of a transparent material. The protective cover has a front surface and a rear surface. The rear surface of the protective cover is painted. The protective cover covers the front surface of the mounting bracket, and the rear surface of the protective cover faces the front surface of the mounting bracket. The color on the rear surface of the protective cover does not fade and is protected against scratches and abrasions.

Abstract: Certain exemplary embodiments can provide a system, machine, device, and/or manufacture that is configured for operably releasing condensate from a condensate producing system to a drain without allowing a substantial quantity of air to enter the condensate producing system from the drain or a substantial quantity of air to exit the condensate producing system to the drain.

Abstract: A condensate water treatment apparatus (2) includes a water receiving tray (20) and an evaporator (21) disposed on the water receiving tray (20). The water receiving tray (20) is configured to store condensate water generated by an air conditioner. The evaporator (21) is configured to draw the condensate water in the water receiving tray (20) upward to a surface of the evaporator (21), so that the condensate water evaporates. An air conditioning system free from condensate water that includes a condensate water treatment apparatus is further disclosed.

Abstract: Supply Air device (1) for controlling supply air flow to a building space, comprising a chamber (2) having a supply air inlet (3) and an air outlet (4). A first tube (10) in the chamber is connected at an open first end (11) to the supply air inlet, wherein the first tube has a side wall (13) which is permeable to air. A throttle member (30) is slidably connected to the first tube to change a degree of exposure of the side wall to control air flow through said side wall to the outlet. The exposable side wall comprises a layer of porous material (14) through which air is discharged.

Abstract: The invention provides for protection of life safety, property and the liability thereof, by means of a intrinsically safe unpressurized storage tank water heater while producing hot pressurized water. The design addresses, with effect, convection, radiation, conduction and evaporative heat energy losses. Heat lost returned as usable hot water resulting in ultra-low standing loss. The stationary water medium prevents sedimentation, fouling of the heating element and gases expelled. Being dielectrically isolated, the medium may also be treated to further reduce corrosion. The design allows for a quick recovery rate and provides adjustable volume of hot water, being stackable, stage able, renewable, repairable and recyclable.