A、system is overcharged with refrigerant
B、system is low on refrigerant
C、discharge valves are leaking excessively
D、discharge valves are leaking slightly
更多“The compressor in an air-cooled condensing refrigeration system is short cycling on the high pressure cutout switch（）”相关的问题
A、an immediate crankcase explosion B、oil contamination in the compressed air C、a decrease in compressor capacity D、no immediate loss of the compressed air capacity
A、insufficient lube oil circulating through the system B、excessive circulation of lube oil through the system C、insufficient refrigerant in the system D、an overworked compressor
A、A.bypass the high pressure stage to the low pressure stage on 100% of the air compressors in service B、B.prevent excessive inter-stage pressure buildup C、C.control compressor discharge pressure D、D.remove all but the frictional load during starting
A、a shortage of refrigerant in the system B、air in the system C、an accumulation of liquid refrigerant in the crankcase D、a shortage of oil in the crankcase
A、damage to the un-loader operating diaphragm B、an increase in current flow to the motor C、high pressure in the receiver and filter D、an excessive consumption of crankcase oil
A、A.oil foaming in the compressor B、B.higher than normal suction and discharge pressures with a higher box temperature C、C.higher than normal discharge pressure with a normal box temperature D、D.the compressor to run continuously
A、overheated compressor bearings B、excess lube oil viscosity C、carbon deposits on the compressor piston rings D、wax crystals forming in the lubricant
A、the cooling effect of the condensate reduces the compressors efficiency B、a danger of explosion exists whenever water is present in a compressor C、water causes erratic operation of pneumatic components D、the volumetric capacity of the first stage is reduced if water remains
A、Carbon build up in the piston ring belt B、Faulty operation of a cylinder un-loader C、Compressor operation in an area of high relative humidity D、Lifting of intercooler rebel valve
A、A.increased capacity of the compressor B、B.more efficient operation of the thermal expansion valve C、C.decreased capacity of the compressor D、D.loss of receiver capacity
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