当前位置: X题卡 > 所有题目 > 题目详情

When a refrigeration compressor motor fails to start, the FIRST thing that should be checked for is...

查看本题答案

你可能感兴趣的试题

increase the amount of cooling water to the condenser  decrease the amount of cooling water to the condenser  add more refrigerant to the system  remove some refrigerant from the system  
always be wide open when the compressor restarts  continue to operate as if the system were in operation  remain open until evaporator pressure equalizes, then close until the compressorrestarts  always be completely closed until the compressor restarts  
ls  compress  compare  cp  
compress  gzip  tar  md5  
available dunnage, and chocking  crushability, and inherent vice  sweat, and weight  weight, and refrigeration"  
has nm continuously for a long period  suction pressure is below normal  oil level is below normal  starts after a long idle period  
under heavy loads  during hot gas defrost  under light loads  during starting conditions  
insufficient condenser cooling water  excessive condenser cooling water  air in the refrigeration system  excessive refrigerant in the system  
filter  filter drier  heat exchanger  air cooler  
dehydrated  purged  plugged  evacuated  
flooding back  superheating  overflowing  recycling  
install oversized rings  hone the cylinder liner to allow ring installation  compress the rings tighter with a compressing tool  file the ends of the rings  
the expansion valve will move toward the wide open position  the expansion valve will move toward the closing position  the feeler bulb will conveys the high temperature  the superheat degree will raise  
system is low on refrigerant  high pressure cutout switch is improperly adjusted  discharge valves are leaking slightly  discharge valves are leaking excessively  
the compressor suction pressure is not too high  all air is purged from the pump and charging fittings  the high pressure cutout switch is held open to prevent accidental starting  the condenser is completely shutdown first  
拉伸;  剪切;  压缩  
Dehydrators must be used continuously in a refrigeration system  A 25 ton refrigeration system has the same cooling effect as melting 25 tons of icein 24 hours  A thermostatic expansion valve is used to control refrigerated space temperature  The liquid receiver functions to collect and remove non- condensable gases  

热门试题

更多