A refrigeration system contaminated with moisture can be affected by ().
A、acid formation
B、sludge formation
C、ice in the expansion valve
D、All of the above
A、acid formation
B、sludge formation
C、ice in the expansion valve
D、All of the above
A、refrigeration device B、refrigerant recovery C、refrigerant recycling D、refrigerant recharge
A、Too much refrigerant B、Too little refrigerant C、Refrigerant is ran out D、Running is over
A、flushed with clean refrigerant oil B、purged with the refrigerant C、washed with an ammonia and alcohol solution D、grounded to compressor
A、flushed with clean refrigerant oil B、purged with the refrigerant C、washed with an ammonia and alcohol solution D、grounded to compressor
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、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、a shortage of compressor oil B、warm food in the refrigerator C、excessive condenser cooling water D、a shortage of refrigerant
A、excessive condenser cooling water B、warm food in the refrigerator C、a shortage of refrigerant D、s shortage of compressor oil
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、The liquid receiver functions to collect and remove non-condensable gases B、A thermostatic expansion valve is used to control refrigerated space temperature C、Refrigerant temperature in an evaporator is directly related to refrigerant pressure D、Dehydrators must be used continuously in a refrigeration system