A mounting structure of a grille for mounting the grille onto a device comprises a fixing member having a fixing aperture for receiving a fastening means and a guiding member extending away from the fixing member for inserting into an opening on the device so that the grille is placed in a pre-determined position and the fixing aperture is aligned with a corresponding fastening means receiving slot on the device to facilitate the fastening of the grille onto the device. The fixing member and the guiding member are integrally formed as a single piece on the grille.

A mounting structure of a grille for mounting the grille onto a device comprises a fixing member having a fixing aperture for receiving a fastening means and a guiding member extending away from the fixing member for inserting into an opening on the device so that the grille is placed in a pre-determined position and the fixing aperture is aligned with a corresponding fastening means receiving slot on the device to facilitate the fastening of the grille onto the device. The fixing member and the guiding member are integrally formed as a single piece on the grille.

Disclosed are an electric control box and a window air conditioner. The electric control box (200) includes a box body (210) including a bottom plate (211) and a box cover (212) that covers the bottom plate (211). The box cover (212) includes an outer box cover (500) and an inner box cover (600), and an edge of the inner box cover (600) is configured with a water blocking member (611); and the water blocking member (611) protrudes outward from the edge of the inner box cover (600) toward an edge of the outer box cover (500), and the water blocking member (611) is configured for blocking water on the outer box cover (500) from flowing into the inner box cover (600).

An outdoor unit of an air-conditioning apparatus includes: a housing configured to form an outer shell; and a heat exchanger provided to extend at a rear portion of the housing from a lower portion toward an upper portion of the housing, wherein the heat exchanger includes a heat exchanger side plate provided on a side portion and having a side plate locking hole at an upper portion, and the housing includes a rear panel being a plate-like part that forms a rear surface and including an upper rear-surface locking claw at an upper portion, the upper rear-surface locking claw being inserted into the side plate locking hole, and a top panel being a plate-like part provided on an upper side of the rear panel and forming a top surface of the housing, the top panel covering the side plate locking hole and the upper rear-surface locking claw.

An outdoor unit of an air-conditioning apparatus includes: a housing configured to form an outer shell; and a heat exchanger provided to extend at a rear portion of the housing from a lower portion toward an upper portion of the housing, wherein the heat exchanger includes a heat exchanger side plate provided on a side portion and having a side plate locking hole at an upper portion, and the housing includes a rear panel being a plate-like part that forms a rear surface and including an upper rear-surface locking claw at an upper portion, the upper rear-surface locking claw being inserted into the side plate locking hole, and a top panel being a plate-like part provided on an upper side of the rear panel and forming a top surface of the housing, the top panel covering the side plate locking hole and the upper rear-surface locking claw.

An external-air conditioning apparatus and a ventilation system are provided, the external-air conditioning apparatus includes a fin tube type heat exchanger and a housing that stores this heat exchanger. The housing includes a base body that serves as a back side of the apparatus body and a cover body that serves as a front side of the apparatus body, and the base body and the cover body are dividable and detachable in structure. The base body has a base portion, a partitioning portion, a connecting pipe portion, a heat-exchanger-holding structure portion, and a water receiving portion. The cover body is a structure in which a front wall portion and a three-side peripheral wall portion are formed integrally with each other, and a part in which the peripheral wall portion is not formed is an inlet for external air.

An external-air conditioning apparatus and a ventilation system are provided, the external-air conditioning apparatus includes a fin tube type heat exchanger and a housing that stores this heat exchanger. The housing includes a base body that serves as a back side of the apparatus body and a cover body that serves as a front side of the apparatus body, and the base body and the cover body are dividable and detachable in structure. The base body has a base portion, a partitioning portion, a connecting pipe portion, a heat-exchanger-holding structure portion, and a water receiving portion. The cover body is a structure in which a front wall portion and a three-side peripheral wall portion are formed integrally with each other, and a part in which the peripheral wall portion is not formed is an inlet for external air.

A heating, ventilation, and air conditioning (HVAC) system includes one or more compressors, one or more outdoor heat exchangers, and one or more indoor heat exchangers. The HVAC system also includes a base pan on which the one or more compressors are mounted. The base pan includes a base level and one or more tier levels higher than the base level. The distance from any point on a perimeter of the first-tier level to a nearest point on a perimeter of the base level is based on the smallest bolt circle diameter of the one or more compressors mounted on the base pan. Also, the perimeter lengths of the tier levels are based on a percentage of the base level perimeter length.

An outdoor unit for a refrigeration cycle apparatus includes: a heat exchanger having an outer surface inclined downward; a drain pan on which the heat exchanger is set; a top frame on which a fan is set, the top frame being disposed at a top of the heat exchanger; and a support attached to the drain pan and the top frame, the support extending between the drain pan and the top frame.

An outdoor unit for a refrigeration cycle apparatus includes: a heat exchanger having an outer surface inclined downward; a drain pan on which the heat exchanger is set; a top frame on which a fan is set, the top frame being disposed at a top of the heat exchanger; and a support attached to the drain pan and the top frame, the support extending between the drain pan and the top frame.