Self-contained air conditioner with discharge-air filter

Details Self-contained air conditioner with discharge-air filter Self-contained air conditioner with discharge-air filter

1999-01-11

1999-11-23

Bennett, Henry

Refrigeration

Structural installation

62298, 62DIG16, F25D 2312

Patent

active

059879084

ABSTRACT:
A ceiling or overhead air conditioner unit is configured to fit into a standard space, e.g., two-foot by four-foot, in a dropped ceiling. The unit can be a self-contained air conditioning unit with HEPA filter, or an air conditioner attachment adapted to fit onto a blower and filter assembly. The positions of the condenser air intake and outlet can be field-selected at either the end, the top, or the side, e.g., using a movable plate. The evaporator return inlet can similarly be field-selected at the top, side, or end. The return bypass inlet can be field-selected at the side or top. The room air intake can be connected by a duct either to outside air or to an intake air grille in the ceiling. The air conditioning attachment unit that fits an existing or available ceiling mounted filter and blower assembly has its condenser section on one side of the unit, and its evaporator section at the other side, guiding conditioned air into a centrally situated cool air plenum. Bypass air is supplied to the plenum to mix with the conditioned air. Dampers and ducting permit the environment to be maintained at overpressure or underpressure, as needed for a given application. The unit can be coupled to additional client filter and blower assemblies.

REFERENCES:
patent: 2638757 (1953-05-01), Borgerd
patent: 2920460 (1960-01-01), Atchison
patent: 4507940 (1985-04-01), Sato et al.
patent: 4560395 (1985-12-01), Davis
patent: 4786300 (1988-11-01), Uesmatsu et al.

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