System and method for using hot gas reheat for humidity control

Details System and method for using hot gas reheat for humidity control System and method for using hot gas reheat for humidity control

2004-12-30

2008-10-14

Tyler, Cheryl J. (Department: 3744)

Refrigeration

Automatic control

Of external fluid reheating

C062S196100, C062S196300, C062S196400, C062S176100, C062S176500, C062S176600, C062S160000, C062S159000, C236S04600F

Reexamination Certificate

active

07434415

ABSTRACT:
A humidity control method is provided for a multi-stage cooling system having two or more refrigerant circuits that balances humidity control and cooling demand. Each refrigerant circuit includes a compressor, a condenser and an evaporator. A hot gas reheat circuit having a hot gas reheat coil is connected to one of the refrigerant circuits and is placed in fluid communication with the output airflow from the evaporator of that refrigerant circuit to provide additional dehumidification to the air when humidity control is requested. The hot gas reheat circuit bypasses the condenser of the refrigerant circuit during humidity control. Humidity control is only performed during cooling operations and ventilation operations.

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