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
更多“Refrigeration system compressor crankcase sweating is an indication of （）.”相关的问题
A、insufficient condenser cooling water B、excessive condenser cooling water C、air in the refrigeration system D、excessive refrigerant in the system
A、Dehydrators must be used continuously in a refrigeration system B、A 25 ton refrigeration system has the same cooling effect as melting 25 tons of ice in 24 hours C、A thermostatic expansion valve is used to control refrigerated space temperature D、The liquid receiver functions to collect and remove non- condensable gases
A、system is low on refrigerant B、high pressure cutout switch is improperly adjusted C、discharge valves are leaking slightly D、discharge valves are leaking excessively
A、freezing the expansion valve closed B、corrosion of system piping C、improper temperature regulation D、all of the above
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
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