Air conditioning system

Refrigeration – Automatic control – Of external fluid reheating

Reexamination Certificate

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Reexamination Certificate

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06931868

ABSTRACT:
The air conditioning system for conditioning of an airflow stream uses a fluid flow system to control operational modes of heating, cooling, dehumidifying freeze protection and defrost. The fluid flow system allows an air conditioning system to operate using a hot fluid source without the need for a gas or oil direct heat air stream heat system. The fluid flow system circulates fluid through a reheat coil and a precooling coil or a bypass conduit thereof depending on the operating mode of the system. Routing of fluid flow is controlled by a hot water control valve and a bypass valve under control of a control panel and a check valve stabilizing the fluid pressure minimizing formation of gas bubbles in the fluid which condition may degrade system performance.

REFERENCES:
patent: 4770001 (1988-09-01), Kittler
patent: 5493871 (1996-02-01), Eiermann
patent: 6123147 (2000-09-01), Pittman

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