The refrigerant leaves the evaporator of a refrigeration system as a low pressure ().
A、sub-cooled liquid
B、high temperature liquid
C、oil saturated liquid
D、superheated vapor
A、sub-cooled liquid
B、high temperature liquid
C、oil saturated liquid
D、superheated vapor
A、A.increasing refrigerant pressure in the coil B、B.increasing chilled water flow through the cooler C、C.sub-cooling the refrigerant in the condenser D、D.superheating the refrigerant in the compressor
A、stop the refrigerant from flowing B、force the refrigerant to flow C、cause the refrigerant pressure to rise D、cause the refrigerant pressure to fall
A、A.too much refrigerant in the system B、B.oil entrained in the refrigerant C、C.less than a full charge of refrigerant in the system D、D.ice crystals forming in the refrigerant
A、passing it through the expansion valve B、condensing refrigerant in the system condenser C、passing the gaseous refrigerant through the heat interchanger on the suction side of the compressor D、maintaining a high pressure on the systems receiver
A、sudden evaporation of wax crystals in the lubricant B、sudden evaporation of entrapped air in the lubricant C、release of refrigerant from the oil/refrigerant mixture D、release of dissolved lubricant from the refrigerant
A、a shortage of compressor oil B、warm food in the refrigerator C、excessive condenser cooling water D、a shortage of refrigerant
A、remove any air that may accumulate in the system B、take out unpleasant fumes from the refrigerant C、vent off excess refrigerant in an emergency D、permit opening the refrigerating system for cleaning and inspecting