The bulb for the thermal expansion valve is located()
A、in the middle of evaporator coils
B、near the evaporator coil outlet
C、near the evaporator coil inlet
D、on the bottom row of evaporator coils
A、in the middle of evaporator coils
B、near the evaporator coil outlet
C、near the evaporator coil inlet
D、on the bottom row of evaporator coils
A、A.Twice the dry bulb temperature B、B.10℃ above the dry bulb temperature C、C.5℃ above the dry bulb temperature D、D.Equal to the dry bulb temperature
A、detect the temperature B、detect the pressure C、heat the refrigerant D、accelerate the refrigerant
A、increase the capacity of the coil B、increase the superheat at the bulb C、deliver more refrigerant to the coil D、decrease the capacity of the coil
A、At the designed operating temperature, the liquid refrigerant charge has changed to a vapor B、The liquid refrigerant tends to collect at the bellows or diaphragm and reduces the valve sensitivity C、The sensing bulb is empty of liquid refrigerant charge at the designed operating temperature D、The sensing bulb is never emptied of liquid refrigerant under normal operating conditions
A、dry bulb temperature B、wet bulb temperature C、saturation temperature D、water vapor superheat
A、the expansion valve will move toward the wide open position B、the expansion valve will move toward the closing position C、the feeler bulb will conveys the high temperature D、the superheat degree will raise
A、The sensitivity is the same for the MS and the BTS. B、The path loss is the same for the MS and the BTS. C、The feeder loss is the same for the MS and the BTS. D、The antenna gain is the same for the MS and the BTS. E、The combiner loss is the same for the MS and the BTS.