An air handler that provides for noise reduction without reducing the pressure of air supplied to a space below minimum levels. The air handler includes a plenum, which forms a passageway for air through the air handler; the plenum having a return side and a supply side, a fan positioned in the plenum to move air through the plenum, the fan having a suction side and a pressure side, and a conditioning apparatus in the plenum for conditioning air passing through the plenum. The air handler further includes a sound-attenuating panel, which has a first side and an opposed second side and is positioned in the plenum so that the panel extends at least partially across the plenum. The panel is configured and positioned to interact with the flow of air in the plenum 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 and the panel in the plenum and the conditioning apparatus.

The present disclosure relates to a climate management system having a control system configured to control climate characteristics of a building. The control system further includes a memory device and a processor. The memory device includes instructions that, when executed by the processor, cause the processor to receive, via a sensor, data indicative of an evaporator coil temperature of the climate management system, and operate an air mover of the climate management system to control supply of conditioned air to the building based on the evaporator coil temperature.

An integrated ventilation unit configured to provide ventilation and conditioned air to an indoor space may include a heat pump system, an energy recovery device and a control unit. The heat pump system may include a first coil located at a supply air side of the ventilation unit, a second coil located at an exhaust air side of the ventilation unit, and a compressor. The energy recovery device may be configured to transfer heat between a return air stream and a supply air stream and the control unit may be configured to control operation of the heat pump system and the energy recovery device.

The present disclosure controls the supply of conditioned air to moderate the energy consumption by the heat source side in the supply of conditioned air using ducts in an air conditioning system. A heat exchanger unit includes a use side heat exchanger. A plurality of ducts distribute conditioned air that has passed through the use side heat exchanger of the heat exchanger unit. A plurality of fan units suction the conditioned air from the heat exchanger unit through the plurality of ducts, and supply the conditioned air to an air conditioned space. Each fan unit includes a fan motor that acts as an actuator configured to change an individual air supply amount of the conditioned air. A controller controls the plurality of fan motors to control the respective air supply amounts of the plurality of fan units.

In a commercial building, an improved terminal unit achieves individual occupant thermal comfort with optimal cost and energy efficiency through the integration of at least two local thermal comfort components into a single terminal unit along with a communication network that may incorporate additional thermal components and also employs emerging optimization principles to meet individual preferences for the thermal environment in a workspace basis while reducing overall zone or building energy use and operating in accordance with any constraints on the energy grid(s) that serve the buildings. These multiple objectives are met in part through the multi-comfort factor individual workspace control and a robust communication network that to coordinate thermal conditioning with neighboring workspaces.

In a commercial building, an improved terminal unit achieves individual occupant thermal comfort with optimal cost and energy efficiency through the integration of at least two local thermal comfort components into a single terminal unit along with a communication network that may incorporate additional thermal components and also employs emerging optimization principles to meet individual preferences for the thermal environment in a workspace basis while reducing overall zone or building energy use and operating in accordance with any constraints on the energy grid(s) that serve the buildings. These multiple objectives are met in part through the multi-comfort factor individual workspace control and a robust communication network that to coordinate thermal conditioning with neighboring workspaces.

A method for air conditioning including installing an air conditioning unit at a desired location. The air conditioning unit includes a housing that has air supply inlets and exhaust air outlets. The housing encloses a mode control unit that switches a zone coil associated with a zone from a cooling mode to a heating mode by switching from a cooling medium to a heating medium flowing through the zone coil. The zone coil receives the heating or cooling medium and conditions incoming air from a supply fan to be exhausted in a zone associated with the zone coil. A variable refrigerant flow cooling/heating unit provides a cooling medium or a heating medium at varying rates to control a temperature of a zone.

An energy efficient hybrid variable air volume terminal system with multiple heating coils to enhance temperature control in each individual room in a plurality of rooms. The hybrid variable air volume terminal system includes a novel hybrid variable air volume box that has one inlet duct and a plurality of outlet ducts coupled to the novel hybrid variable air volume box. Each outlet duct has a heating coil operably connected thereto which can be operably connected to any number of the plurality of rooms to provide an energy efficient building management system. In certain embodiments, either an actual or a virtual thermostat is operably connected to the hybrid variable air volume terminal system to control the operation of the system remotely. In certain embodiments, the hybrid variable air volume terminal system comprises an automated air balance system or an automated space control damper and demand response control system to control and/or vary the amount of air flow.

A method for providing personalized comfort to occupants of an environmentally conditioned space includes sensing a pre-adjustment pressure within a variable air volume diffuser, remotely adjusting a position an individually-adjustable directional outlet of the variable air volume diffuser, sensing a post-adjustment pressure within the variable air volume diffuser, and modifying the airflow through the variable air volume diffuser such that the post-adjustment pressure is equal to the pre-adjustment pressure. The variable air volume diffuser includes individually-adjustable directional outlets and a controller configured to regulate air pressure within the variable air volume diffuser when an individually adjustable directional outlet is adjusted. A user device in operative communication with the variable air volume diffuser includes a user interface to remotely adjust an adjustable directional outlet of the variable air volume diffuser to provide personalized comfort for the user. In embodiments, the variable air volume diffuser responds to spoken commands.

Variable air flow air conditioning (HVAC) systems including a method of cooling or heating a structure having at least two zones. In example embodiments, individual air flow rates of the at least two zones are measured, and a control system adjusts the individual air flow rates to maintain an instantaneous measured net volumetric air flow rate at a preset volumetric air flow rate as if there was a single fan operating the system.