Abstract: A louver assembly for placement in an opening for regulating the inlet of air, comprising a first blade stack and second blade stack arranged in tandem, and a sill for supporting the first and second blade stack. The first and second blade stacks have a plurality of blades arranged in a horizontally-spaced and vertically-extending configuration defining a plurality of horizontally-spaced and vertical extending air passageways for the passage of air therethrough. The sill has a generally planar first portion for supporting the first blade stack and a sloped second portion for supporting the second blade stack, wherein the sloped portion and the second blade stack define therebetween a void for equalizing pressure within the assembly to facilitate the draining of water therefrom.

Abstract: In a method for operating a heating, ventilation, and air conditioning (HVAC) system of a vehicle, an input of an instruction of a user for the HVAC system is performed by means of a user interface. The HVAC system executes the input instruction. Furthermore, an olfactory signal is generated for the user by means of an olfactory device of the HVAC system as an input confirmation. Furthermore, a corresponding HVAC system for a vehicle is provided.

Abstract: An extraction system is designed for metal working and other applications. The system may comprise a blower that delivers a positive pressure airflow to a hood that creates an air region for removal of airborne components from a work area. Return air is filtered in a filter region, and debris removed may be separated by a baffle in the filter region to limit re-uptake of the debris by the blower during operation of the system.

Abstract: A heat source system managing device includes: a predicted heat demand upper limit calculating unit configured to calculate a predicted heat demand upper limit by adding a prediction error to a predicted heat demand value for a heat source system; an operation plan preparing unit configured to prepare an operation plan of the heat source system to supply heat of the predicted heat demand upper limit to a consuming facility; a surplus stored heat quantity calculating unit configured to repeatedly perform a process of calculating a surplus stored heat quantity by subtracting a heat quantity consumed by the consuming facility from the predicted heat demand upper limit; and an operation plan changing unit configured to sequentially change the operation plan by decreasing a future operation rate of a refrigerator to cancel the surplus stored heat quantity.

Abstract: A damper, damper kit and method are for installing a damper in a duct defining a gas conduit. The damper kit includes a first aperture closing unit engageable with at least one conduit wall and configured to close a first aperture when engaged therewith and including a shaft receiving section opened in the gas conduit. The damper kit has a second aperture closing unit engageable with the at least one conduit wall and including a shaft receiving section opened in the gas conduit. The damper kit includes a damper having at least one shaft with a first section insertable in the shaft receiving section of the first aperture closing unit and a second section insertable in the shaft receiving section of the second aperture closing unit and extending past the at least one conduit wall through the second aperture closing unit.

Abstract: A method for adapting the control of the feed temperature of a heating installation to a building to be heated or at least to a building part to be heated, with which the heating installation supplies the building or the building part with heat by way of a heat transfer medium led in the circuit. The circuit comprises at least one temperature-controlled heating circuit. The flow rate of the heat transfer medium in the circuit is registered in a continuous manner or in temporal intervals. The adaptation of the control of the feed temperature is effected automatically in dependence on the registered values.

Abstract: A packaged terminal air conditioner unit (PTAC) and methods for operating the same are provided. The PTAC includes a vent aperture defined in a bulkhead of the PTAC through which make-up air may flow. An indoor fan urges a flow of primary make-up air at a primary flow rate and an auxiliary fan urges a flow of auxiliary make-up air at an auxiliary flow rate. A controller determines a target make-up air flow rate, e.g., based on a user setting which is determined from building code calculations factoring in expected room occupancy, room size, and other factors. The controller then operates the auxiliary fan to urge the flow of auxiliary make-up air at the auxiliary flow rate which is substantially equivalent to the target make-up air flow rate minus the primary flow rate.

Abstract: A vehicle air register includes an airflow damper disposed within a register housing. A rotationally-operable control is coupled to the airflow damper and the register housing. A ride plate is disposed within the register housing and that slidably receives the control to define open and closed positions of the airflow damper. The control includes a biased pin that engages the ride plate. The ride plate is made of a different material than the housing. A method for forming a vehicle register includes forming a ride plate that is made of a first material, forming a register housing made of a second material, and having a plate receptacle defined therein, disposing the ride plate within the plate receptacle, and disposing a damper and damper control within the housing.

Abstract: An energy recovery ventilator for a heating or cooling system includes a housing and a heat exchanger located in the housing for recovery of thermal energy from a stale airflow of the heating or cooling system. An exhaust fan positioned in the housing is in flow communication with the heat exchanger to urge the stale airflow from a return port disposed in a first side panel of the housing, across the heat exchanger and toward an exhaust port of the energy recovery ventilator. The exhaust fan and the heat exchanger are configured such that the heat exchanger is removable from the housing via a front panel opening in the housing without disturbing a position of the exhaust fan.

Abstract: Systems and methods are directed to an air handler that reduces noise without reducing the pressure of air supplied to a space below minimum levels. The air handler includes a plenum forming a passageway for air. The plenum has a return side, a supply side, a fan within the plenum having a suction side and a pressure side to move air through the plenum, and a conditioning apparatus in the plenum for conditioning air through the plenum. The air handler further includes a sound-attenuating panel having a first side and an opposed second side that extend at least partially across the plenum. The panel is configured and positioned to interact with the flow of air to attenuate sound. The fan provides a pressure boost to air flowing through the plenum to counteract a pressure drop resulting from interaction between the air, the panel, and the conditioning apparatus.

Abstract: The present application relates to an arrangement for reducing thermal energy loss through a sill assembly of the type used with a door or window. The sill assembly includes at least one sill member. The at least one sill member has a hollow region therein. The sill assembly further includes a baffle disposed within the at least one sill member. The baffle spans a length of the at least one sill member and divides the at least one sill member into a plurality of chambers thereby limiting interaction of warmer air and cooler air within the at least one sill member. The baffle reduces heat transfer through the hollow region via convection.

Abstract: A temperature controlled case includes a number of shelves, an air-curtain, and a number of air-straighteners. The number of shelves individually support a displayed product. The number of shelves are mounted to the temperature controlled case. The air-curtain originates at an air-curtain discharge and terminates an air-curtain return. The number of air-straighteners is equal to the number of shelves. The number of air straighteners individually include a flow guide and are individually coupled to one of the number of shelves. The flow guides are located at locations within the air-curtain. The flow guides are configured to control the air-curtain. The flow guides individually include a luminaire comprising a number of LEDs coupled to a number of PCBs. The luminaires are configured to illuminate a number of illumination targets. The number of illumination targets correspond to at least one of the displayed products.

Abstract: The present invention relates to a tube for a heat exchanger, wherein at least a part of the tube has a variable cross-section in longitudinal direction, wherein a cross-sectional area decreases from a maximum value close to an outer end of the tube to a minimum value close to an opposite outer end thereof. The invention further relates to a heat exchanger provided with at least one such tube and to a central heating installation and a tap water system comprising such a heat exchanger.

Abstract: A louver assembly for placement in an opening for regulating the inlet of air, comprising a first blade stack and second blade stack arranged in tandem, and a sill for supporting the first and second blade stack. The first and second blade stacks have a plurality of blades arranged in a horizontally-spaced and vertically-extending configuration defining a plurality of horizontally-spaced and vertical extending air passageways for the passage of air therethrough. The sill has a generally planar first portion for supporting the first blade stack and a sloped second portion for supporting the second blade stack, wherein the sloped portion and the second blade stack define therebetween a void for equalizing pressure within the assembly to facilitate the draining of water therefrom.

Abstract: A selective filtration system for an operator cab attached to an agricultural vehicle. A HVAC unit supplies conditioned air to an operator space selectively from a CAT 4 filter and a CAT 2 filter. A pressurization blower and two way valve controls flow from the CAT 4 filter to the HVAC unit. Control of flow or isolation of the CAT 2 filter is provided by pressure variations within the system. The CAT 4 filter and CAT 2 filter are isolated from the ambient when they are not in use.

Abstract: An apparatus and a method are provided for a heating, ventilation, and air conditioning (HVAC) air filter to remove airborne molecular contaminants and volatile organic compounds (VOCs) from air within building spaces is disclosed. The air filter comprises a support frame having a shape and size suitable to orient the air filter within a HVAC system. A compound filter medium is retained within the support frame to remove the airborne molecular contaminants and VOCs from air flowing through the HVAC system. A method of removing airborne molecular contaminants and volatile organic compounds (VOCs) from air is disclosed that includes an operation of coupling a first media layer, comprising uniformly disposed pleats, with a second media layer, comprising a woven fiber material, so as to form a compound filter medium.

Abstract: A vehicle body structure includes a wall and a removable panel. The wall has a first surface and a second surface opposite the first surface. The wall defines a vent opening with a peripheral edge extending between the first surface and the second surface. The wall includes an air vent structure open to the vent opening. The removable panel has a trim surface and an attachment surface with a plurality of air vent slots extending from the attachment surface to the trim surface. The attachment surface has a retaining structure configured to retain an air filter along the attachment surface and an attachment structure configured to attach to the wall covering the vent opening with the retaining structure extending at least partially within the air vent structure.

Abstract: A filter trap for a motor vehicle thermal device is made of polymer material and includes two longitudinal edges extending along a length thereof connected by two lateral edges extending along a width thereof. The trap includes a first assembly tab extending along the length thereof and fixed to one of the lateral edges. The trap also includes a snap coupling to block the trap. The snap-coupling is fixed to one of the longitudinal edges and is located in the vicinity of another of the lateral edges. The trap also includes a second assembly tab extending perpendicular to the first assembly tab. The second assembly tab is fixed to another of the longitudinal edges and is located in a vicinity of another of the lateral edges. The trap has sufficient flexibility along the length thereof to permit twisting of the trap about a longitudinal torsion axis of the trap.

Abstract: An HVAC system according to an example of the present disclosure includes a blower rotatable about an axis. The blower has a first blower section and a second blower section fluidly isolated from the first blower section. An inlet assembly at an axial end of the blower includes a first compartment configured to control fluid flow through the first blower section and a second compartment configured to control fluid flow through the second blower section.

Abstract: A ventilation system for a motor vehicle, having a multiplicity of controllable air outlets, an input unit for selecting at least one flow target position in a passenger compartment of the motor vehicle from a multiplicity of selectable flow target positions. The selectable flow target positions can be displayed on a display unit, a control unit which is connected to the input unit and to the air outlets and is designed to set an outflow direction of at least one of the air outlets on the basis of at least one selected flow target position. In this context, at least two of the selectable flow target positions on the display unit are combined to form a flow target region with little draft.