Free Match D.C.inverter Muti-variable Air Conditioner Outdoor Unit
8
Pipe
Flare Nut
Ordinary
Fig. 7
Table 5
：
Moments of Torque for Tightening Screws
Diameter
Wall Thickness
（
mm
）
Moment of Torque
φ6.35mm
≥
0.5
15-30
(
N·m)
φ9.52mm
≥
0.71
30-40(N·m)
φ12.7mm
≥
1
45-50(N·m)
φ15.9mm
≥
1
60-65(N·m)
CAUTION!
①
During the connection of the indoor unit and the refrigerant pipe, never pull any joints of the
indoor unit by force; otherwise the capillary pipe or other pipe may crack, which then would
result in leakage.
②
The refrigerant pipe should be supported by brackets, that is, don’t let the unit withstand the
weight of it.
CAUTION!
For the free match D.C.inverter Muti-variable air conditioner unit, each pipe should be labeled
to tell which system it belongs to avoid mistaken inaccurate piping.
(5) Installation of the Protection Layer of the Refrigerant Pipe
1) The refrigerant pipe should be insulated by the insulating material and plastic tape in order
to prevent condensation and water leakage.
2) The joints of the indoor unit should be wrapped with the insulating material and no gap is
allowed on the joint of the indoor unit, as shown in Fig.8.
No gap
Fig.8
CAUTION!
After the pipe is protected well enough, never bend it to form a small angle; otherwise it would
crack or break.
