Digital scroll condensing unit controller

摘要

A cooling system controller (60) controls the capacity of a variable capacity compressor (44/244a-d) based upon the temperature of a housing being cooled, the suction pressure of the compressor or both of these criteria. The cooling system controller is capable of controlling either single-evaporator (54/254) or multiple-evaporator (54a,54,54c) refrigeration systems. The multiple-evaporator systems can have evaporators of similar temperatures or of mixed temperatures. The controller (60) also allows the use of one or more condenser fans (202,204) that are operated in a lead/lag fashion to control the cooling capability of the system. IMAGE