950-0207revA - 18 - November 27, 2013
5. The bending angle of the pipe cannot be too small; otherwise it will crack. And please use a pipe
tube bender to bend the pipe.
6. Wrap the exposed refrigerant pipe and the joints by sponge and then tighten them with the plastic
tape.
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.
If the specification of the outdoor unit pipe joint does not conform to that of the indoor unit, then
the joint specification of the outlet pipe of the indoor unit takes precedence. A reducing nipple
(adapter) shall be installed at the joint of the outdoor unit so as to make the joint of the outdoor
unit compatible with that of the indoor unit.
INSULATION FOR 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. See Fig. 18 below.
No gap
CAUTION:
After the pipe is protected will enough, never bend it to form a small angle; otherwise it would
crack or break.
3.
Wrap the pipe with tape.
a. Bundle the refrigerant pipe and electric wire together with tape, and separate them from the
drain pipe to prevent the condensate water overflowing.
b. 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 of the former one.
c. Fix the wrapped pipe on the wall with clamps.
CAUTION:
● 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.
● After that, fill the hole on the wall with sealing material to prevent wind and rain coming into the room.
● If the specification of the outdoor unit pipe joint does not conform to that of the indoor unit, then the
joint specification of the outlet pipe of the indoor unit takes precedence. An adapter shall be installed at
the joint of the outdoor unit so as to make the joint of the outdoor unit compatible with that of the indoor
unit. For detail information, please refer to the installation manual to be placed in the outdoor unit
carton.
Figure 18.
