Abstract: Multi-unit cooling systems and structures thereof for residential, commercial, or other buildings. In one embodiment, a support duct system comprises a support duct frame including a longitudinal axis and at least one mounting bracket support, each of the at least one mounting bracket support being movable relative to the longitudinal axis of the support duct frame; and at least one mounting bracket coupled to a corresponding one of the at least one mounting bracket support, each of the at least one mounting bracket being removably couplable to a corresponding cooling unit. Each of the cooling units is independently rotatable relative to the longitudinal axis of the support duct frame.

Abstract: Methods of installing multi-unit cooling systems. In one embodiment, the method includes installing a support duct frame at an installation location, the support duct frame including a longitudinal axis and the multi-unit support duct system including a plurality of cooling units rotatably coupled to the support duct frame, each of the plurality of cooling units being in a first configuration relative to the longitudinal axis of the support duct frame; and independently rotating each of the plurality of cooling units from the first configuration to a second configuration relative to the support duct frame.

Abstract: Devices, systems, and methods for controlling a temperature within an interior space of a building, and modifying a pre-existing temperature control system by replacing a gas heater with a heat pump. In one embodiment, a temperature control system includes a cooling unit, a heat pump, and ductwork connecting the cooling unit and the heat pump. In one embodiment, a method of operating a temperature control system includes providing to an interior space of a building heated air with a heat pump, providing cooled air with the heat pump, and providing dehumidified air with the heat pump. The method may further include providing supplemental cool air to the interior with the heat pump. In one embodiment, a method of modifying or retrofitting a pre-existing temperature control system includes replacing a pre-existing gas heater with a heat pump, while retaining a cooling unit and ductwork of the pre-existing system.

Abstract: A backdraft damper assembly is shown and described herein. In one embodiment, a damper assembly comprises: a main body, the main body having an inner surface defining throat, the throat defining an axial fluid flow path; a first door, the first door being hingedly connected within the main body; and a second door, the second door being hingedly connected within the main body, the damper assembly being transitionable between an open configuration and a closed configuration, at least a portion of each of the first door and the second door being received within a portion of the inner surface of the main body when the damper assembly is in the open configuration, such that the first door and the second door are not within the axial fluid flow path.

Abstract: A hybrid heating and cooling system, the system comprising an indirect-direct evaporative cooler (IDEC) subsystem; a heat pump subsystem; and a mixing plenum located between and in fluid communication with the IDEC subsystem and the heat pump subsystem, the mixing plenum being configured to mix a flow of fluid from the IDEC subsystem and a flow of fluid from the heat pump subsystem. The IDEC subsystem and the heat pump subsystem are independently operable to achieve a plurality of heating and/or cooling modes of operation.

Abstract: Multi-unit cooling systems and structures thereof for residential, commercial, or other buildings. In one embodiment, a support duct system comprises a support duct frame including a longitudinal axis and at least one mounting bracket support, each of the at least one mounting bracket support being movable relative to the longitudinal axis of the support duct frame; and at least one mounting bracket coupled to a corresponding one of the at least one mounting bracket support, each of the at least one mounting bracket being removably couplable to a corresponding cooling unit. Each of the cooling units is independently rotatable relative to the longitudinal axis of the support duct frame.

Abstract: A walkway for use and integration with a cooling system and methods for the assembly thereof. A walkway may include a chassis and a walkway assembly coupled to the chassis, the chassis being configured to be coupled to a cooling system. The chassis may include a frame portion that is configured to be integrated with the cooling system such that the frame portion defines at least a portion of a frame of the cooling system when the walkway is in use; a mounting rail portion coupled to the frame portion; and a plurality of walkway support sleeves coupled between the frame portion and the mounting rail portion. The walkway may also include a plurality of walkway support bars, each configured to be received within a corresponding one of the plurality of walkway support sleeves and secured against the mounting rail portion.

Abstract: Multi-unit cooling systems and structures thereof for residential, commercial, or other buildings. In one embodiment, a support duct system comprises a support duct frame including a longitudinal axis and at least one mounting bracket support, each of the at least one mounting bracket support being movable relative to the longitudinal axis of the support duct frame; and at least one mounting bracket coupled to a corresponding one of the at least one mounting bracket support, each of the at least one mounting bracket being removably couplable to a corresponding cooling unit. Each of the cooling units is independently rotatable relative to the longitudinal axis of the support duct frame.

Abstract: An evaporative cooler having a pressurized water distribution system that provides even water distribution to evaporative media pads within the evaporative cooler, even when the evaporative pads are canted and/or are not in perfect alignment. In one embodiment, the evaporative cooler includes a weatherproof sealing assembly that is transitionable between an open position and a closed position. In one embodiment, the evaporative cooler includes a reservoir having a plurality of ribs on a bottom surface to facilitate seating the evaporative cooler on a roof during installation. A method of installing an evaporative cooler including mounting at least a portion of the evaporative cooler to a dropper before securing the dropper to the roof.

Abstract: An evaporative cooler having a pressurized water distribution system that provides even water distribution to evaporative media pads within the evaporative cooler, even when the evaporative pads are canted and/or are not in perfect alignment. The pressurized water distribution system generally includes a distribution assembly with a pressurized flow path portion and a non-pressurized flow path portion, and a supply assembly. The evaporative cooler may also include other features that enhance aesthetics and/or cooling capacity, such as supplemental evaporative media pads, a perforated lid, an internal retaining frame, angled louvers, and/or a dropper that allows for a low-profile installation on a roof of a building or other structure.

Abstract: An evaporative cooler having a pressurized water distribution system that provides even water distribution to evaporative media pads within the evaporative cooler, even when the evaporative pads are canted and/or are not in perfect alignment. In one embodiment, the evaporative cooler includes a weatherproof sealing assembly that is transitionable between an open position and a closed position. In one embodiment, the evaporative cooler includes a reservoir having a plurality of ribs on a bottom surface to facilitate seating the evaporative cooler on a roof during installation. A method of installing an evaporative cooler including mounting at least a portion of the evaporative cooler to a dropper before securing the dropper to the roof.

Abstract: An evaporative cooler having a pressurized water distribution system that provides even water distribution to evaporative media pads within the evaporative cooler, even when the evaporative pads are canted and/or are not in perfect alignment. The pressurized water distribution system generally includes a distribution assembly with a pressurized flow path portion and a non-pressurized flow path portion, and a supply assembly. The evaporative cooler may also include other features that enhance aesthetics and/or cooling capacity, such as supplemental evaporative media pads, a perforated lid, an internal retaining frame, angled louvers, and/or a dropper that allows for a low-profile installation on a roof of a building or other structure.

Abstract: An indirect evaporative cooler core is manufactured from a continuous sheet of hydrophobic material. Flocking is provided on at least a partial surface area of at least one side of the sheet, to render the flocked surface area wettable. Air flow guiding structures are formed upon at least one of the first side and the second side of the sheet. Fold lines are defined in the sheet defining plates extending between adjacent fold lines. Slits are formed along the fold lines. Accordion pleating the sheet at the fold lines forms alternating wet and dry passages between the plates, the wet passages formed between opposing wettable surfaces, the dry passages formed between non-flocked surfaces, and the accordion pleating causes the slits in the folds to open and form air inlets and outlets in communication with the air flow passages.

Abstract: An indirect evaporative cooling system with a core greatly reduced in size compared to conventional evaporative cooling systems The system has a heat exchanger core having heat exchange plates defining a plurality of wet air flow passages and a plurality of dry air flow passages. At least one fan drives air through the passages. The dry air passages have a small height and a short length, configured so that a substantially laminar airflow having a raised shear rate arises in the dry air passages, and so that a back pressure across a length of the dry air passages remains low.

Abstract: An indirect evaporative cooler core is manufactured from a continuous sheet of hydrophobic material. Flocking is provided on at least a partial surface area of at least one side of the sheet, to render the flocked surface area wettable. Air flow guiding structures are formed upon at least one of the first side and the second side of the sheet. Fold lines are defined in the sheet defining plates extending between adjacent fold lines. Slits are formed along the fold lines. Accordion pleating the sheet at the fold lines forms alternating wet and dry passages between the plates, the wet passages formed between opposing wettable surfaces, the dry passages formed between non-flocked surfaces, and the accordion pleating causes the slits in the folds to open and form air inlets and outlets in communication with the air flow passages.

Abstract: An indirect evaporative cooling system with a core greatly reduced in size compared to conventional evaporative cooling systems The system has a heat exchanger core having heat exchange plates defining a plurality of wet air flow passages and a plurality of dry air flow passages. At least one fan drives air through the passages. The dry air passages have a small height and a short length, configured so that a substantially laminar airflow having a raised shear rate arises in the dry air passages, and so that a back pressure across a length of the dry air passages remains low.

Abstract: A method of controlling the operation of an evaporative air cooler where the pads (2) of the cooler are intermittently wetted with an amount of water (14) in excess of the capacity of the pads (2) to absorb and retain during each wetting operation of the pad. The airflow (20) through the pads during intermittent wetting being limited to a velocity so as to not entrain water in the airflow during the wetting operation and the velocity of the airflow through the pads is increased after each intermittent wetting so as to raise the level of cooling output (22) of the cooler between each intermittent wetting operation.

Abstract: A counter flow indirect evaporative heat exchanger (10) having vertically stacked alternate counter flow wet (14) and dry (12) passages where the wet passages are wetted during operation of the heat exchanger by wetting means (50, 52, 53, 54, 70, 72, 74, 76) travelling vertically of the stack. Elongately wetting of a small plurality of the total number of passages (14, 12) of the heat exchanger (10) occurs at a time during vertical travel of the wetting means.

Abstract: A method of controlling the operation of an evaporative air cooler where the pads (2) of the cooler are intermittently wetted with an amount of water (14) in excess of the capacity of the pads (2) to absorb and retain during each wetting operation of the pad. The airflow (20) through the pads during intermittent wetting being limited to a velocity so as to not entrain water in the airflow during the wetting operation and the velocity of the airflow through the pads is increased after each intermittent wetting so as to raise the level of cooling output (22) of the cooler between each intermittent wetting operation.

Abstract: A counter flow indirect evaporative heat exchanger (10) having vertically stacked alternate counter flow wet (14) and dry (12) passages where the wet passages are wetted during operation of the heat exchanger by wetting means (50, 52, 53, 54, 70, 72, 74, 76) travelling vertically of the stack. Elongately wetting of a small plurality of the total number of passages (14, 12) of the heat exchanger (10) occurs at a time during vertical travel of the wetting means.