Patent ID: 8286438

Claim:
A system for controlling a desuperheater comprising: a first temperature sensor coupled to a refrigerant discharge gas line of a compressor; a second temperature sensor coupled to a water inlet line of the desuperheater; and a controller operatively coupled to at least the first temperature sensor, the second temperature sensor, the compressor, and the desuperheater, wherein the controller starts or stops a desuperheating function of the desuperheater by; i) turning on a circulation pump of the desuperheater when the first temperature sensor determines that a temperature at the discharge gas line of the compressor is above an upper threshold temperature; and ii) turning off the circulation pump of the desuperheater when either the first temperature sensor determines that a temperature at the discharge gas line of the compressor is below a lower threshold temperature or the second temperature sensor determines that a temperature of water entering the desuperheater has reached a maximum set point temperature.