AUTOMATIC CHILLED WATER SETPOINT TEMPERATURE CONTROL USING RETURN CHILLED WATER TEMPERATURE

摘要

AUTOMATIC CHILLED WATER SETPOINT TEMPERATURE CONTROL USING RETURN CHILLED WATER TEMPERATURE A control system for controlling the entering chilled water temperature of a refrigeration system at a selected setpoint. A microcomputer system receives electrical input signals indicating of an operator selected entering chilled water temperature setpoint and refrigeration system operating parameters indicative of an operator selected entering chilled water The microcomputer processes these input signals to generate a leaving chilled water temperature control point which is a function of the entering chilled water temperature setpoint and the temperature drop across the chiller.