你可能感兴趣的试题
admit only enough fresh outside air to provide proper ventilation reduce the air reheating system load lower the compressor head pressure operate the purge recovery unit continuously
remove any air that may accumulate in the system take out unpleasant fumes from the refrigerant vent off excess refrigerant in an emergency permit opening the refrigerating system for cleaning and inspecting
separating chamber system of baffles purge valve vacuum reducing valve
central air conditioning system high velocity system low velocity system single duct system
increase the flow of the cooling water through the condenser adjust the high pressure cutout to maintain the desired pressure open the hot gas bypass temporarily to reduce capacity purge non-condensable gases to reduce the excess pressure
transmit the rudder angle to the bridge indicator prevent the control linkage from striking the stops when hard over automatically purge all entrained air from the system send hydraulic signals to the receiving unit
change the expansion valve adjustment readjust the water regulating valve to increase the flow of water purge air from the condenser clean the waterside of the condenser
discharge service valve as a vapor suction service valve as a liquid charging valve as a liquid condenser purge valve as a vapor
opposing operational drag pressure distribution differential system purge
reclaims water purges air without losing refrigerant purges air with some loss of refrigerant purges lube oil from the refrigerant
drain the accumulators and purge with oxygen bleed off all stored energy from the accumulators completely charge the accumulators to prevent system energy loss pump the hydraulic fluid into the accumulators to prevent fluid loss