One example provides a cooling system, including: an ambient air inlet configured for attachment to an enclosure to be cooled, the enclosure including one or more heat generating components; an enclosure air outlet configured for attachment to the enclosure; a fan; and a controller configured to: determine one or more signals; and responsive to the one or more signals, operate the fan to impart movement of air within the enclosure; whereby operation of the fan mechanically activates one or more of the ambient air inlet and the enclosure air outlet.

The off-ridge roof vent with an internal water diverter includes a throat, a hood and a water diverter. The throat has a front throat wall, a rear throat wall and a pair of longitudinally opposed throat sidewalls. The throat has open upper and lower ends. The hood has an upper hood wall that is convex upward, a pair of longitudinally opposed hood sidewalls and a lower hood wall. A lower end of the hood has a rear portion, a central portion and a front portion, the rear portion being open, aligned with, and in open communication with the open upper end of the throat. The lower hood wall defines the central portion and projects forward from the front throat wall. The front portion is open, having a perforated grating mounted therein. A water diverter extends from the front edge of the lower hood wall and slopes above the grating.

A ventilation device for a building comprising: a first ventilation system, a second ventilation system, a third ventilation system, a fourth ventilation system, a fifth ventilation system, a sixth ventilation system, a seventh ventilation system, an eighth ventilation system, and an air intake system, The first ventilation system, the second ventilation system, the third ventilation system, the fourth ventilation system, the fifth ventilation system, and the air intake system are mounted on a spire of a roof top and tilted roof sheeting of the building. The sixth ventilation system, the seventh ventilation system, and the eighth ventilation system are fixed on a bottom chord and a wall of the building.

A switch device for connecting and disconnecting power supplies to an air conditioner system is described. The switch device includes an electrical inlet for connecting a power cord of a generator, a toggle switch, a first electrical connection from the toggle switch to a power source of a building, and a second electrical connection from the toggle switch to the air conditioner system. The toggle switch includes a first position, a second position, and a third position, each of which may include a corresponding indicator light. When the toggle switch is placed in the first position, the air conditioner system is connected to the power source of the building. When the toggle switch is placed in the second position, the air conditioner system is connected to a power source of the generator. When the toggle switch is placed in the third position, power is disconnected to the air conditioner system.

An air handling unit includes a rain hood configured to receive an air flow from an external environment surrounding the rain hood, and a sensor disposed within the rain hood and configured to monitor air flow parameters indicative of a flow rate of the air flow.

A louver blade for a louver assembly includes a first section, a second section extending from the first section and including a crest of the louver blade, an extension extending from the second section to form a recess between the extension and the second section, and a protrusion extending from the second section toward the extension and configured to facilitate retention of the particles within the recess. The extension is configured guide particles into the recess in an installed configuration of the louver blade with the louver assembly.

Disclosed is an air conditioner. The air conditioner includes: an indoor unit and an outdoor unit that circulates a refrigerant between the indoor unit and the outdoor unit, in which the outdoor unit includes a heat exchanger that exchanges heat with the refrigerant and a housing that houses the heat exchanger, the housing includes a first plate that is provided to surround the heat exchanger, and a second plate that is provided to cover an opening formed on an edge of the first plate, has a ventilation hole through which air is circulated between inside and outside of the housing, is made of a material having greater corrosion resistance than that of the first plate, and includes a screw coupling part provided to be coupled to the first plate.

Methods and functional elements for enhanced thermal management of predominantly enclosed spaces to enable the construction of buildings with reduced power requirements for heating and/or air-conditioning systems. The methods may be in part based on dynamically changing functional elements with variable properties, or effective properties, in terms of their electromagnetic radiative behavior and/or their thermal energy storage properties, or the spatial distribution of the stored thermal energy, which permits the application of methods to control the overall thermal behavior of the entire structure in such a way that desired levels of inside temperature can be reached with reduced consumption of external energy (typically electricity, gas, oil, or coal). In some instances no conventional heating of cooling is required at all. In some instances the invention reduces the time to reach desired temperatures inside such buildings, habitats, or other predominantly enclosed spaces.

An active airflow inhibiting apparatus for an entranceway comprises a structure, an airflow sensor, and a controller. The structure comprises one or more air mover devices configured to be positioned adjacent an entranceway of a building and defining a passage therethrough for accessing the entranceway. The airflow sensor is configured to provide an output indicative of speed and direction of airflow through the entranceway or at the air mover devices. The controller is connected to the air mover devices and the airflow sensor. The controller is configured to receive the output of the airflow sensor and to control an output of the air mover devices based on the received output so as to generate a differential pressure across the air mover devices which inhibits airflow through the entranceway.

A casing of a heat source unit for a refrigeration device is configured to allow air to flow from a machine chamber disposed at a lower portion of the casing to a heat exchange chamber disposed above the machine chamber. An electric component box includes a bottom panel, a side panel which has a vent opening, a top panel, and a vent opening cover for covering the vent opening of the side panel. The vent opening cover is provided with a plurality of slits extending in the vertical direction at positions deviated from a portion opposed to the vent opening of the side panel.