A heating, ventilation, and/or air conditioning (HVAC) unit may include a supply fan section having a supply fan disposed therein to force a supply air flow through a discharge plenum of the HVAC unit. The HVAC unit may also include an economizer positioned adjacent the supply fan section to receive an outdoor air flow and direct the outdoor air flow into the supply fan section.

An air conditioning unit includes a passage having a heat exchanger; a blower for blowing air through the passage; a blower motor driving the blower in response to a drive signal; an energy recovery ventilator (ERV), the blower drawing outside air from the ERV; and a controller for adjusting the drive signal in a ventilation mode to reduce power used by the blower motor.

An apparatus is provided and arranged with an air control system to alternately direct a first and a second airflow to a first and a second energy-absorbing body in order to achieve a heat and moisture transfer between the two airflows. The energy exchange bodies alternate between recovery and release modes such that when one energy exchange body is in the release mode the other is in the recovery mode. Each of the first and second energy absorbing bodies is divided into a first latent energy recovery portion which includes a moisture absorbent material so that it is arranged to absorb latent energy and a second sensible energy recovery portion which is substantially free from moisture absorbent material so as to absorb primarily sensible energy.

An air-to-air heat recovery core, comprising: a core assembly having parallel first and second channels that are open to first and second sides of the core assembly, respectively, the first and second channels interleaved, and each first channel sharing a wall with an adjacent second channel; first and second sealants formed along opposite first and second edges, respectively, of the core assembly perpendicular to a running direction of the first and second channels, the first and second sealants respectively blocking first and second ends of the channels; and first and second panels secured to first and second sides of the core assembly, respectively, the first and second panels blocking a middle portion of the first and second channels, respectively, such that air can enter and leave the first and second channels via the first and second end portions of the first and second channels but not via the middle portions.

An air conditioning system for conditioning room air comprising an air supply device (1) having an extraction air chamber (2), into which room extraction air from the room is introduced, and a power source (3) for powering the air supply device. The air supply device comprises at least one pettier-element (4) having a first side (20) arranged to condition at least part of the room extraction air before it being diffused into the room.

The present invention relates to a decentralized hybrid ventilation. The ventilation system comprises a housing having an inlet channel and an outlet channel. A first fan is arranged in the inlet channel for providing an airflow into the room and a second fan is arranged in the outlet channel for providing an airflow out of the room. A heat exchanger and filters are arranged in said channels for exchanging heat between and for filtrating air flowing into the room and air flowing out of the room. Furthermore, the ventilation system comprises a first and a second service door each providing, when open, an opening between the room and one of said channels to diverge the airflow from primarily flowing through the air filters and/or heat exchanger. The ventilation system also comprises a control system configured for switching between different modes of operations.

A dual mode impeller assembly and ventilation device and a system, is provided, comprising one or more of a unit casing, a compact rotating heat exchange unit, a dual mode impeller, and a filter unit, and a system for monitoring and control of such ventilation device.

A heating, ventilation, and air conditioning (HVAC) system includes a heat pump having a housing. The HVAC system also includes an energy recovery ventilator (ERV) or heat recover ventilator (HRV) integrated with the heat pump such that an access panel to the ERV or HRV faces outwardly from the housing of the heat pump, and such that the access panel is accessible at an outer boundary of the housing.

The present disclosure relates to a heating, ventilation, and/or air conditioning (HVAC) system including an enclosure that is divided by a partition extending between a first panel and a second panel of the enclosure such that the partition defines an outdoor air flow path and a return air flow path through the enclosure. The partition includes an opening extending between the outdoor airflow path and the return airflow path. The HVAC system also includes an energy recovery wheel that translatably extends through the opening and is positioned within the outdoor air flow path and the return air flow path. The energy recovery wheel is disposed within the enclosure at an oblique angle relative to the outdoor air flow path and the return air flow path.

An energy recovery system includes a heating and cooling system having a controller and a furnace or fan coil in fluid communication with each of a return air duct and a supply air duct; and an energy recovery ventilator (ERV) having an intake air duct and an exhaust air duct, the ERV being energized by a direct electrical connection to the heating and cooling system. The return air duct is operable to receive stale conditioned air from a conditioned air space while the controller is configured for controlling the ERV to transfer energy from the stale conditioned air to an outside air stream.