Air conditioner units and methods for providing make-up air are provided. An air conditioner unit includes an outdoor heat exchanger, an indoor heat exchanger and a bulkhead. The air conditioner unit further includes a vent aperture defined in a rear wall of the bulkhead. The air conditioner unit further includes a dehumidification system, the dehumidification system including an evaporator assembly configured for removing heat from outdoor air flowing therethrough and a condenser assembly configured for adding heat to outdoor air flowing therethrough. The air conditioner unit further includes a movable panel disposed proximate the vent aperture. The movable panel is movable between an open position wherein air flow through the vent aperture is permitted and a closed position wherein air flow through the vent aperture is restricted.

A refrigeration cycle is configured by connecting a compressor, a four-way valve, a heat source side heat exchanger, expansion valves, and intermediate heat exchangers by piping. A heat medium circulation circuit is configured by connecting intermediate heat exchangers, pumps, and use side heat exchangers by piping. The outdoor unit accommodates the compressor, the four-way valve, and the heat source side heat exchanger, and the relay unit that is installed in a non-subject space which is different from an indoor space and is on an installation floor separated by two or more floors and accommodates the expansion valves, the pump, and intermediate heat exchangers are connected by two pipelines. The relay unit and an indoor unit that accommodates use side heat exchangers and is installed at a position where an indoor space can be air-conditioned are connected by two pipelines.

Provided is an air conditioner including a variable air volume control device. The air conditioner includes: an indoor unit main body including a main outlet through which air is discharged; a blower placed in the indoor unit main body and blowing air toward the main outlet; and a controller adjusting a second discharge rate of air in an air cleaning mode independently of a first discharge rate of air in a heating or cooling mode, wherein the second discharge rate of air is varied within a range different from a range in which the first discharge rate of air is varied.

A mobile air conditioner has a shell, a heat dissipation device, a sleeve, a sliding door, a air-discharge device and an air cooling assembly. The shell has an internal space and a vent, and the vent is on the top of the shell. The heat dissipation device has an inlet and an outlet. The sleeve is connected between the vent and the outlet. The sliding door is movably mounted in the shell and corresponds to the vent. The air-discharge device and the air cooling assembly are disposed in the internal space. Hot air inside the mobile air conditioner is upward dissipated from the vent.

The blower motor is powered by 115 volts from the circuit board that runs all of the other functions of the machine. This blower assembly is designed with enough draw to pull the incoming air across air filters in order to keep the blower and the operator free of air-borne debris. The filtered air is then supplied into the hollow framing of the equipment to be distributed to the operator, circuit boards and motors through holes made in the equipment framing. Using the machine frame as the ductwork also preserves the style and design of the equipment. Not only is this a new idea to the exercise equipment industry, but I believe it is necessary for an exercise machine to deliver clean air to the operator in order to keep their good health in mind. A blower without an air filter will send bacteria onto the user who is breathing heavy and sweating. This seems to defeat the purpose of exercising and the benefits of getting your heart rate and breathing accelerated for a length of time. The air is not mechanically cooled but typically exercise rooms are air conditioned anyhow.

A heating, ventilation and air conditioning (HVAC) system includes a compressor, a condenser operably connected to the compressor, and an evaporator operably connected to the compressor and to the condenser. A relocatable interface panel is in operable communication with one or more components of the HVAC system to issue commands to the HVAC system via operator inputs at the interface panel. An electrical lead connects the interface panel to the one or more components. A plurality of installation points are located at the HVAC system for installation of the interface panel thereto. The interface panel is selectably installed to an installation point of the plurality of installation points at an installation site of the HVAC system.

A heating and cooling system for use in high-rise residential and commercial buildings may include condensing unit having dimensions no greater than 12 inches deep by 40 inches wide by 20 inches tall and a fan coil unit coupled to the condensing unit via refrigeration tubing. The fan coil unit may have dimensions of no greater than 14 inches deep by 43 inches wide by 11 inches tall. The condensing unit may include a condenser water connection, a refrigeration tubing connection, a compressor, and a heat exchanger. The fan coil unit may include a filter rack configured to hold a MERV 13 filter, two in-line high-pressure fans, and at least one access panel on a bottom surface of the fan coil unit.

An air conditioner includes a housing comprising an external panel defining an external appearance and having an opening formed at the external panel; a heat exchanger configured to exchange heat with air flowing into the housing; and an air discharge unit configured to discharge air heat-exchanged by the heat exchanger out of the housing. The air discharge unit includes a first discharge unit connected to the opening and discharging air; and a second discharge unit provided at the external panel and discharging air. A method of blowing heat-exchanged air may be changed in accordance with an environment of a user.

Air conditioner units and methods for providing make-up air are provided. An air conditioner unit includes an outdoor heat exchanger, an indoor heat exchanger and a bulkhead. The air conditioner unit further includes a vent aperture defined in a rear wall of the bulkhead. The air conditioner unit further includes a dehumidification system, the dehumidification system including an evaporator assembly and a condenser assembly. The evaporator assembly is configured for removing heat from outdoor air flowing therethrough. The evaporator assembly is in fluid communication with the vent aperture for flowing outdoor air from the evaporator assembly through the vent aperture, The condenser assembly is configured for adding heat to outdoor air flowing therethrough. The condenser assembly is spaced from the vent aperture for flowing outdoor air from the condenser assembly into the outdoor portion.

A packaged terminal air conditioner unit includes a casing. A compressor, a reversing valve and an ejector of the packaged terminal air conditioner unit are positioned within the casing. The ejector is configured for drawing vapor refrigerant into a flow of liquid refrigerant. An exterior heat exchanger and an interior heat exchanger are also positioned within the casing. The interior heat exchanger has a first stage and a second stage.