Performing an adequate vacuum process ensures that there are no
or moisture inside the system. The presence of uncondensable gases causes the operating pressures of the system to vary and reduce its capacity.
Moisture can produce even more damaging effects, such as oxidation of metal parts, change in oil density and consequent loss of lubrication.
But the worst effect results from the formation of an acid, when the moisture reacts with the refrigerant and the oil in the system; this acid corrodes the varnish of the winding of the compressor causing its burning (mass compressor). These reasons make this process one of the most important for the proper functioning of the refrigeration and air conditioning system.
