37
SS-SVM001A-EM
When the indoor unit is lower than outdoor unit and height difference is larger than 16.4ft.(5m),
set an oil trap every 16.4ft.(5m) (height difference) on suction piping.
Note:
1. To avoid storing too much oil in the oil trap, the oil trap should be as short as possible.
2. The horizontal piping should slope down along the refrigerant flow direction,
to bring the oil back to compressor, the slope is about 1/200 to1/250.
3. In order to ensure better cooling/heating performance, the refrigerant
piping should be as short and straight as possible.
9. Piping work and refrigerant charge
9.1 MAX. length allowed
9.2 Oil trap
Model
Max. Pipe
length (L)
Max. Height
difference
(H)
Add.
Refrigerant
[exceed 25ft
7.6m]
36K 131ft. (40m) 98ft. (30m)
0.38(oz/ft)
[35(g/m)]
48K/60K 164ft. (50m) 98ft. (30m)
0.38(oz/ft)
[35(g/m)]
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