25(m) 15(m) 15(g/m)
30(m) 15(m) 15(g/m)
50(m) 30(m) 35(g/m)
Max. Tube
length(L)
Model
2.0HP
3.0/4.0/
5.0/6.0/
6.5HP
1.5HP
Max. Height
difference(H)
Add.
Refrigerant
(exceed 5m)
4.3 Refrigerant Length between Indoor and Outdoor
Fig.4.6 Fig.4.7
19
Pipe length L
Indoor unit
Height difference H
Outdoor unit
Min.10cm
Installation and Maintenance
Cut off the excess length
of bolts to avoid difficulties
in movement in future.
anchor bolt
Fig.4.3 The installation of anchor bolts
Concrete base or similar structure
Setscrew
(at least 4)
About 40cm
About 10cm
Fig.4.4
Fig.4.5
Wire Ropes
Max. 21mm
Oil trap
Slope: 1/200~1/250
Slope: 1/200~1/250
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 be 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 cooling/heating performance better, the refrigerant piping should be as short and
straight as possible.
If the total pipe length is between 5m to 50m (Max. length), an additional refrigerant can be added.
It is not necessary to add compressor oil. (Figure 4.6) Pay attention to the Max. pipe length and
Max. height difference allowed while performing this work.
Oil trap
When the indoor unit is lower than outdoor unit and height is larger than 5m, install an oil trap every 5m
(height difference) on suction piping. (Figure 4.7)
NOTE:
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