Airwell SX 18 Notice Technique page 24

REFRIGERANT CONNECTIONS
IMPERATIF
Cooling only models
If the suction tube has a vertical section more than 8
m in length, it is mandatory to provide a siphon every
three meters when the condensor unit is installed
above the processing unit (inter-connecting tubes with
a bottle).
Fil a siphon on the Gas line every 3 m.
Linking pipes 9 to 25 m
9 < B < 15 m trap every 3 m
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