A window air conditioner includes an indoor heat exchanger, a water receiving pan below the heat exchanger, and a filter screen. The water receiving pan includes mounting portions for connecting to heat exchanger flanges. At least one mounting portion has a slot to cooperatively receive a filter screen fitting portion.

A packaged terminal air conditioner (PTAC) system includes a wall sleeve in which a chassis is mounted. The chassis includes the major electrical and mechanical components for the evaporator and condenser sections, and includes a pan that collects condensate from the evaporator section for use in cooling the condenser coil. The sleeve includes one or more guide openings in a sidewall, and correspondingly mounted guide structures inside the sleeve that are configured to guide spheroid-shaped treatment pellets into different portions of the PTAC system to suppress or inhibit microbial growth. This arrangement obviates the need to partially disassemble the PTAC unit to remove the chassis so that treatment pellets can be placed into the PTAC unit. The bottom of the wall sleeve includes a drain reservoir and is sloped to direct water on the bottom to the drain reservoir.

A packaged terminal air conditioner (PTAC) system includes a wall sleeve in which a chassis is mounted. The chassis includes the major electrical and mechanical components for the evaporator and condenser sections, and includes a pan that collects condensate from the evaporator section for use in cooling the condenser coil. The sleeve includes one or more guide openings in a sidewall, and correspondingly mounted guide structures inside the sleeve that are configured to guide spheroid-shaped treatment pellets into different portions of the PTAC system to suppress or inhibit microbial growth. This arrangement obviates the need to partially disassemble the PTAC unit to remove the chassis so that treatment pellets can be placed into the PTAC unit. The bottom of the wall sleeve includes a drain reservoir and is sloped to direct water on the bottom to the drain reservoir.

A chassis for a window air conditioner includes an indoor part and an outdoor part arranged along a length direction of the chassis. The indoor part includes an air inlet hole at a bottom wall of the indoor part. The air inlet hole penetrates the chassis in a thickness direction of the indoor part.

A chassis for a window air conditioner includes an indoor part and an outdoor part arranged along a length direction of the chassis. The indoor part includes an air inlet hole at a bottom wall of the indoor part. The air inlet hole penetrates the chassis in a thickness direction of the indoor part.

A support for mounting an air conditioner for operative disposition in a window, while being free of any supports external to the window and of any metallic fastener contact with the window, includes elongated top and bottom members of lightweight construction, sized and shaped to extend parallel to an interior window sill of the window, with opposite ends of the top member extending beyond vertical side jambs of the window. First and second transverse members of polymeric molded construction extend between the top and bottom members to define a receptacle sized and shaped to slidably receive the air conditioner therein and to interferingly engage an elongated flange extending along an upper surface of the air conditioner. The top and/or bottom members include hand-holds and the top member is adjustable to accommodate windows of various sizes.

A temporary restroom may form a complete enclosure, including a front wall, a back wall, two sidewalls, a floor, a ceiling, and a door. The front wall, the back wall, the two sidewalls, the floor and the ceiling each includes multiple support members, which together form a frame. Inside the enclosure, the temporary restroom includes a, coupled with a waste drainage pipe, a sink in, coupled with a water pipe and a waste water drainage pipe, and multiple connections for connecting the waste drainage pipe and the waste drainage pipe to waste plumbing, connecting the water pipe to water plumbing, and connecting the temporary restroom to a source of electric power. The temporary restroom does not include a waste storage tank or a built-in source of water.

An air conditioning indoor unit includes a body, a panel, and a horizontal flap. The body is provided with an air outlet. The panel is positioned to cover the front of the body. The horizontal flap is able to vary the air direction of conditioned air blown out from the air outlet. A recess recessed toward the back side of the air conditioning indoor unit is disposed between an upper edge of an open peripheral edge of the air outlet and a lower end of the panel. During non-operation, the recess and the air outlet are covered by the horizontal flap.

Disclosed herein is a method of installing an air conditioner unit into a window frame, the method comprising: inserting the air conditioner unit into an opening in the window frame; extending left and right adjustable side curtains until the left and right adjustable side curtains contact jarbs of the window frame; recording a left measurement of an extent at which the left adjustable side curtain extends from a left reference point of the air conditioner unit and recording a right measurement of an extend at which the right adjustable side curtain extends from a right reference point of the air conditioner unit; cutting to size a left and right outer panel by cutting along a cut line identified by indicia that matches the recorded left and right measurements; and snap-fittingly installing the cut left and right outer panel onto a frame of the left and right adjustable side curtain respectively.

A portable air conditioner has a housing assembly and an operating unit including a refrigerant circulating system and an air guiding system both mounted in the housing assembly. The air guiding system has an air channel switching device and has an evaporating end fan and a condensing end fan both mounted in the air channel switching device. An operation mode switching method of the portable air conditioner has a cooling mode and a dehumidifying mode. In the dehumidifying mode, cool air drawn by the evaporating end fan flows through a condenser and is heated to become hot air and is discharged. Therefore, the portable air conditioner has both cooling function like an ordinary air conditioner and dehumidifying function like an ordinary dehumidifier.