| 摘要 |
<p>A microcomputer system 16-19 receives electrical input signals indicative of an operator selected temperature setpoint for water entering evaporator 5 and refrigeration system operating parameters indicative of water temperature entering the evaporator at 15 and of water temperature leaving the evaporator at 13. The microcomputer processes these input signals to generate a leaving water temperature control point which is a function of the entering water temperature setpoint and the temperature drop across the evaporator. The capacity of the system is thereby controlled by adjustment of vanes 12 to match the refrigeration load. <IMAGE></p> |
