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.

A packaged terminal air conditioner unit includes a compressor, an interior coil and an exterior coil positioned within a casing. A control board enclosure is also positioned within the casing. A cover of the control board housing is rotatable on a substantially-horizontal axis relative to a housing of the control board housing. A control board is mounted to the cover of the control board enclosure such that the control board is rotatable on the substantially-horizontal axis with the cover of the control board enclosure.

The present disclosure envisages an air grille. The air grille comprises a front face and a duct face end. The duct face end is in the opposite of the front face. A plurality of flaps are configured on the duct face end, wherein the flaps are capable of collapsing. During shipping the flaps are collapsed whereas before installation the flaps are uncollapsed to facilitate containment of an air filter. The air grille has first thickness when the flaps are collapsed and second thickness when the flaps are uncollapsed, wherein the first thickness is less than the second thickness.

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.

Outdoor units for climate control systems and related methods are disclosed. In an embodiment, the outdoor unit includes a base pan including an upper surface, a lower surface opposite the upper surface, and at least one receptacle, wherein the at least one receptacle comprises an aperture. Additionally, the outdoor unit includes at least one coil locator coupled to the at least one receptacle of the base pan wherein the at least one coil locator comprises a tongue which extends through the aperture and a pair of horizontally spaced feet separate and distinct from the tongue and which are received in the aperture. Further, the outdoor unit includes a heat exchanger coil, and an outdoor fan configured to produce an airflow across the heat exchanger coil.

A layered control panel for a heating, ventilation, air conditioning, and refrigeration (HVACR) unit includes an outer layer on which low-voltage components are placed, and an inner layer on which high-voltage components are placed. The outer layer is capable of taking a closed position where it blocks access to the inner layer, and an open position where the outer layer does not block access to the inner layer. The outer layer can include a lock to keep the outer layer in the closed position. The outer layer can be one or two or more panels mounted on hinges that allow the outer layer to swing between closed and open positions.

A heating, ventilation, and/or air conditioning (HVAC) control system includes an enclosure having a first portion and a second portion assembled in a clamshell configuration. The first portion and the second portion are configured to hingedly engage in a closed configuration about a controller for an HVAC system and are configured to hingedly disengage into an open configuration. The HVAC control system also includes a hinge feature that is configured to hingedly couple the enclosure to a housing of the HVAC system.

A rooftop exhaust fan incorporates a mechanical motor lockout that prevents a fan motor from being energized when the exhaust fan assumes an open position for cleaning, maintenance or inspection.

The present disclosure is related to a sensor mounting assembly for a heating, ventilation, and/or air conditioning (HVAC) unit that includes a cover configured to couple to a panel of the HVAC unit and occlude an opening formed in the panel and a sensor support configured to couple to the cover and support a sensor coupled to the sensor support. The sensor support is also configured to extend into the HVAC unit via the opening in an installed configuration of the sensor mounting assembly.

An electric control box assembly and a window air conditioner are disclosed. The assembly has a box body and a transformer assembly. The sidewalls of the box body are provided with a first mounting region and a second mounting region. The second mounting region is provided with a first mounting portion and a second mounting portion. When the transformer assembly is an intelligent transformer, the intelligent transformer is coupled to the first mounting portion. When the transformer assembly is a non-intelligent transformer bank, the non-intelligent transformer bank comprises a non-intelligent transformer and a relay. One of the non-intelligent transformer and the relay is mounted in the first mounting region, and the other one is coupled to the second mounting portion.