12
Installation Instructions
Table 7 Moments of Torque for Tightening Screws
Diameter (mm)
Wall Thickness (mm)
Moment of Torque (N.m)
Φ6.35
≥0.5
15-30
Φ9.52
≥0.71
30-40
Φ12.7
≥1
45-50
Φ15.9
≥1
60-65
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 MULTI-S inverter air conditioner unit, each pipe should be labeled to tell which system
it belongs to avoid mistaken inaccurate piping.
● 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.9.
CAUTION!
No gap
Fig.9
After the pipe is protected well enough, never bend it to form a small angle, otherwise it
would crack or break.
● Wrap the Pipe with Tape
1. Bundle the refrigerant pipe and electric wire together with tape, and separate them from
the drain pipe to prevent the condensate water overflowing.
2. Wrap the pipe from the bottom of the outdoor unit to the top of the pipe where it enters the
wall. During the wrapping, the later circle should cover half the former one.
3. Fix the wrapped pipe on the wall with clamps.
CAUTION!
1. Do not wrap the pipe too tightly, otherwise the insulation effect would be weakened.
Additionally, make sure the drain hose is separated from the pipe.
2. After that, fill the hole on the wall with sealing material to prevent wind and rain coming
into the room.