Patent ID: 7743617

Claim:
A method of providing sound control for a vapor compression system, the method comprising: providing a compressor, a condenser, and at least one condenser fan; executing a control algorithm to control an operating speed of the compressor and an operating parameter of the at least one condenser fan; determining receipt of a sound control signal, receipt of the sound control signal initiating a reduced sound control program, the reduced sound control program comprising: determining a maximum compressor operating speed in response to the sound control signal, the maximum compressor operating speed being variable based on a value of the sound control signal; determining a maximum condenser fan operating parameter in response to the sound control signal, the maximum condenser fan operating parameter being variable based on a value of the sound control signal; determining an operating speed of the compressor; determining an operating parameter of the at least one condenser fan; overriding the control algorithm in response to at least one of the determined operating speed of the compressor being greater than the maximum compressor operating speed or the determined operating parameter of the at least one condenser fan being greater than the maximum condenser fan operating parameter, overriding the control algorithm comprising at least one of: controllably reducing the operating speed of the compressor controlled by the control algorithm to a speed less than or equal to the maximum compressor operating speed; or controllably altering an operating configuration of the at least one condenser fan; and controlling an operating speed of the compressor and an operating parameter of the at least one condenser fan with the control algorithm in response to the determined operating speed of the compressor being less than the maximum compressor operating speed and the determined operating parameter of the at least one condenser fan being less than the maximum condenser fan operating parameter.