An HVAC system is described having components of a variable refrigerant flow (VRF) outdoor compressor unit connected to an indoor fan coil unit. The indoor fan coil unit supplies air to ducts that condition a plurality of zones. Each zone has a volume modulating air damper that can maintain a predetermined volume of air flowing through it. As the dampers for some zones vary between open and close positions, the air pressure in the ducts changes. The volume modulating dampers compensate for these pressure changes, ensuring that only the predetermine volume of air is passing into the zones. By regulating the volume of into each zone, the volume modulating air dampers can restrict the air volume through the fan coil causing the outdoor unit to reduce compressor speed, thereby saving energy.

An outdoor unit includes a housing including a side panel, a terminal block accommodated in the housing, and a power supply wire connected to the terminal block. The side panel includes an outer shell surface forming a part of an outer surface of the housing, a first recessed surface recessed from the outer shell surface in an inward direction of the housing, and a second recessed surface formed in the first recessed surface and recessed from the first recessed surface in the inward direction of the housing. The power supply wire is arranged on the second recessed surface.

A system and method for transporting cool fresh outside air into an occupied quarters which has an interface member, input connectors, output connectors, switches, and a microcontroller controllably coupled to the plurality of switches. When the thermostat controller system is operating during a heating period, the switches are closed by the microcontroller such that the thermostat controller system controls the operation of the remote air-handling unit that heats air provided to an occupied quarters. When the thermostat controller system is operating during a cooling period, the switches are opened by the microcontroller such that the thermostat controller system no longer controls the operation of the remote air-handling unit when a temperature of outside air is at least less than a cooling set point. The microcontroller operates a remote fan to draw the outside air into the occupied quarters when the outdoor air temperature is less than the cooling set point.

A laundry treating apparatus is disclosed. The laundry treating apparatus includes a cabinet configured to define a receiving space for receiving laundry, the cabinet having an open surface, a door hingedly provided at the cabinet for opening and closing the open surface of the cabinet, a laundry support unit provided in the receiving space for supporting laundry, and a machinery compartment provided in the cabinet for defining a space that is separate from the receiving space, the machinery compartment being provided therein with an air supply unit for dehumidifying or heating air in the receiving space and supplying the dehumidified or heated air into the receiving space. The air supply unit dehumidifies air in a room that communicates with the receiving space in the state in which the door is open.

An air conditioner includes a base, a housing, an indoor unit, an outdoor unit and an electrical control assembly. The housing is disposed on the base, and an accommodating space is provided between the housing and the base. The indoor unit is located in the accommodating space, and the indoor unit includes an indoor air passage component. The outdoor unit is located in the accommodating space and arranged at an interval with the indoor unit. The outdoor unit includes an outdoor air passage component. At least one of sides of the indoor unit and the outdoor unit proximate to each other is provided with a groove. The electrical control assembly is installed between the indoor air passage component and the outdoor air passage component, and at least a part of the electrical control assembly is installed in the groove.

An indoor unit of an air conditioning system is provided. The indoor unit includes a fan, a control box that includes an inspection port on a first side surface, and a casing that houses the fan and the control box. The casing includes a first flow port in a bottom surface of the casing, a second flow port in a first side surface of the casing, and an opening opposed to the inspection port in a second side surface of the casing. The control box comprises a first leading port on each of a second side surface and a third side surface of the control box, the second side surface and the third side surface are opposed to each other and adjacent to the first side surface, and the first leading ports lead external wirings into the control box.

An air cleaner is provided that may include a case including a first suction inlet, the case having a cylindrical or cone shape; a fan housing provided inside of the case, the fan housing accommodating a fan therein; a filter provided at a suction side of the fan, the filter filtering foreign materials in air which is suctioned through the first suction inlet; and a housing suction flow path formed between an outer surface of the fan housing and an inner surface of the case, the housing suction flow path allowing air which is suctioned through the first suction inlet to flow toward and through the filter. The housing suction flow path may include a first flow path inlet having a predetermined first width, and a second flow path inlet through which air having passed through the first flow path inlet flows, the second flow path inlet having a second width greater than the first width.

An air cleaner is provided that includes a first air cleaning module including a first fan that generates an air flow toward a first discharge outlet from a first suction inlet; a second air cleaning module including a second fan that generates an air flow toward a second discharge outlet from a second suction inlet; a divider provided between the first air cleaning module and the second air cleaning module, the divider including a dividing plate space; and a printed circuit board (PCB) device provided in the dividing plate space.

An air cleaner and a method for controlling an air cleaner are provided. The air cleaner may include a first air cleaning module having a first fan and a first filter; a second air cleaning module having a second fan and a second filter, the second air cleaning module provided vertically over the first air cleaning module; an air flow controller provided at an upper side of the second air cleaning module and including a circulation fan; a sensor configured to sense a pollution level in a room space; an input configured to receive input of a command for an operation mode of a plurality of operation modes to operate the first and second air cleaning modules and the air flow controller; and a controller configured to drive at least one of the first fan, the second fan, or the circulation fan selectively and determine an amount of discharge air flow. Based on at least one of an operation mode input or the pollution level, the controller may operate one of (1) the first fan, (2) the first and second fans, (3) the first and second fans and the circulation fan, or (4) the second fan and the circulation fan.

An indoor unit of a ceiling type air-conditioner includes a main body having an inlet port and an outlet port provided at a lower portion thereof, a heat exchanger having a tube through which a refrigerant flows, a blowing fan which forcibly causes air to flow, and a control box comprising a case which is fixed to the main body and a cover which is rotatably coupled to the case so as to open and close the case and to which a printed circuit board having electronic components mounted thereon is fixed.