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There are two refrigerant pipes of different diameters :
◆
A smaller one for the liquid refrigerant
◆
A larger one for the gas refrigerant
◆
The inside of copper pipe must be clean & has no dust
1. Remove the pinch pipe on the pipes and connect the assembly pipes to each pipe, tightening the nuts, first manually
and then with a torque wrench, a spanner applying the following torque.
2. Must use insulator which is thick enough to cover the refrigerant tube to protect the condensate water on the outside
of pipe falling onto the floor and the efficiency of the unit will be better.
3. Cut off any excess foam insulation.
4. Be sure that there must be no crack or wave on the bended area.
5. It would be necessary to double the insulation thickness(10mm or more) to prevent condensation even on the
insulator when if the installed area is warm and humid.
6. Do not use joints or extensions for the pipes that connect the indoor and outdoor unit. The only permitted connections
are those for which the units are designed.
• If the pipes must be shortened refer to page 15.
Refrigerant oil
Spanner
Union
Torque wrench
Flare nut
Outer Diameter (D)
Torque (N•m)
ø6.35 mm
14~18
ø9.52 mm
34~42
ø12.70 mm
49~61
ø15.88 mm
68~82
ø19.05 mm
100~120
Connecting the refrigerant pipe
The designs and shape are subject to change according to the model.
G_4
Drain hose connection port
G_1
Liquid refrigerant port
Gas refrigerant port
DVM Big Duct_EU_IM_DB68-05047A-01_EN_16.03.30.indd 10
2016/4/7 15:54:22
