Lest liquid can return immediately to break the compressor causing hydraulic I cause, or dilute the oil and thus cause progressive and irreversible wear to the compressor, or break in the future.
For a good oil return in the immigration chain compressor
Oil back by drag in the suction line, thus requires a minimum speed to do so; refrigerant velocity must be: 4m / s Horizontal and 8m / s Vertical
The drag oil in upward vertical sections is far more difficult than in horizontal sections, just needs more gas speeds;
Typically in low capacity situations, have hampered oil return and greater likelihood of fluid return, namely the situation in which the extender oil is maximum (low oil in the compressor crankcase coolant mixed well). It can be fatal ....
• In case of higher gap to 5 m between the units and being the evaporation plant at a lower level, must be installed in the suction line a siphon for every 3 m gap.
