A pan and fan housing assembly for a fan coil unit includes a primary pan having a wall defining an air passage through which air is directed by a fan in a fan housing powered by a motor. The fan housing is formed of two fan housing bodies snap-secured to each other and snap-secured to the primary pan air passage defining wall.

A plastic primary pan assembly for use in conjunction with an air conditioning system, wherein a channeled supporting bracket is utilized to tightly engage and effectively support a plastic pan which includes a drain plastic pan and a plastic support plate which contains a C-shaped circumferential portion and a C-shaped extending portion thereof, the channeled supporting bracket having a plurality of elongated apertures being mounted on a motor and a fan cover, whereby the plastic primary pan assembly can be easily associated with and separate from the air conditioning system and easily adjusted to incline the plastic primary pan for drawing condensate water through an outlet disposed in the plastic primary pan.

A plastic primary pan assembly for use in conjunction with an air conditioning system which includes a C-shaped drain plastic pan, a pan cover having a raised portion disposed around a blow outlet thereof, and an U-shaped supporting bracket having a pair of locking end members and a pair of elongated channels and an elongated aperture being mounted on the fan cover and a motor through a motor plate, whereby the plastic primary pan assembly can be easily associated with and separate from the air conditioning system and easily adjusted to incline the plastic primary pan for draining condensate water through an outlet disposed in the plastic primary pan.

Plastic primary pan assembly for use in air conditioning systems which includes a base primary pan containing a pair of blind plates having a pair of semi-cylinders, respectively, to be removed one of them from the base primary pan, a pair of rubber packings, and an assembly plate having a pair of semi-cylinders to be inserted into the base primary pan, after taking out one of the pair of blind plates from the base primary pan, assembling with a base primary pan instead of the blind plate so as to pass a pair of built drain pipe therethrough, whereby the plastic primary pan can easily assemble the base primary pan with the assembly plate, the pair of rubber packings, and the pair of drain pipes.

An air conditioning system includes an air cleaner and a plastic drain pan assembly, which contains a drain pan, a fan cover supporting bracket having a plurality of slant barriers and a radiator supporting bracket having a horizontally elongated slant valley for slantingly receiving a radiator.