Chiller sound reduction control system and method

Details Chiller sound reduction control system and method Chiller sound reduction control system and method

2005-04-12

2010-06-29

Jiang, Chen-Wen (Department: 3744)

Refrigeration

Automatic control

Of external fluid or means

C062S163000, C062S215000, C062S228400

Reexamination Certificate

active

07743617

ABSTRACT:
A noise control method is provided for a cooling system having at least one refrigerant circuit. The refrigerant circuit includes a compressor, a condenser, at least one condenser fan, and an evaporator. Noise control is only performed periodically in response to requirements for reduced operation at predetermined times. The request for reduced noise triggers the commencement of the noise control method. The noise control method involves reducing the operating speed of the compressor, as well as reducing the operating speed of at least one condenser fan, to within a predetermined range of allowable reduced operating speeds. The noise control method temporarily overrides the ability of the cooling system to fully respond to increased cooling or heating demands. When the noise control method is terminated, such as by the end of the stated period of time requiring reduced noise generation, the system is restored to normal operation, and remains fully responsive to cooling and heating demand until commencement of the next period of reduced noise requirements.

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