Thermal expansion pneumatic valve installation and debugging

. Evaporator export a thermometer or suction pressure is used to check the heat;
. Heat is too small ( For fluid volume is too big) , adjust lever clockwise rotation or half a circle a circle, That increase the spring force, reduce the pneumatic valve opening) Reduce, when the refrigerant flow; Regulating rod thread a turning laps shoulds not be too much, Regulating rod thread turning a circle, about change - over heat ℃) , after adjustment for many times, until meet the requirements;
. Experience regulating measures: turn the adjusting lever thread change pneumatic valve opening, muffler just can make evaporator frosting or condensation. On the evaporation temperature is lower than the refrigeration unit, if after the frost touched with the hand, there is a will hand sticking to the feeling of cold, the opening is appropriate; For evaporating temperature in degrees above, can according to the condition of condensation.