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3 Remove the protection caps of the pipes and
connect the assembly pipe to each pipe. Tighten
the nuts first with your hands, and then with a
torque wrench, applying the following torque:
Outer diameter
ø1/4 inch(ø6.35mm)
ø3/8 inch(ø9.52mm)
ø1/2 inch(ø12.70 mm)
ø5/8 inch(ø15.88mm)
NOTE
If you want to shorten or extend the pipes,
see Step 2.9 Shortening or extending the
refrigerant pipes (assembly pipe) on page 45.
4 Cut off the remaining foam insulation.
5 If necessary, bend the pipe to fit along the bottom
of the indoor unit. Then pull it out through the
appropriate hole.
The pipe should not project from the rear of the
indoor unit.
The bending radius should be 3.94inch(100mm)
or more.
6 Pass the pipe through the hole in the wall.
7 Fix the indoor unit on the wall.Pass the cables,
pipes and hose through the knock-out hole which
would be connected to the outdoor unit .
8 Use 2 screws to fix the indoor unit as shown in the
picture 2.
9 Assemble the Guide into the position of A or B as
shown in the picture 3.
NOTE
The pipe will be insulated and fixed permanently
into position after finishing the installation and
the gas leak test. For further details. see Step 4.1
Performing the gas leak tests on page 51.
CAUTION
Tighten the flare nut with a torque wrench
according to specified method. If the flare nut is
over-tightened, the flare may break and cause
refrigerant gas leakage.
Do not box in or cover the pipe connection.
All refrigerant pipe connection must be easily
accessible and serviceable.
IBIM_EN.indd 45
14 to 18
34 to 42
49 to 61
68 to 82
Step 2.9 Shortening or extending the
refrigerant pipes (assembly pipe)
90°
Oblique
D
A
Pipe
Flare
Outer diameter (D)
Depth (A)
0.051inch
ø1/4 inch(ø6.35mm)
(1.3mm)
0.071inch
ø3/8 inch(ø9.52mm)
(1.8mm)
0.079inch
ø1/2 inch(ø12.70 mm)
(2.0mm)
0.087inch
ø5/8 inch(ø15.88mm)
(2.2mm)
Indoor outlet pipe
Torque
Outer diameter
ø1/4 inch(ø6.35mm)
14 to 18
ø3/8 inch(ø9.52mm)
34 to 42
ø1/2 inch(ø12.70 mm)
49 to 61
ø5/8 inch(ø15.88mm)
68 to 82
Pipe cutter
Pipe
Rough
Burr
90°±2°
45°±2°
L
R 0.4 to 0.8
D
Flare dimension (L)
0.3425 - 0.3583 inch
(8.7 - 9.1 mm)
0.5039 - 0.5197 inch
(12.8 - 13.2 mm)
0.6378 - 0.6535 inch
(16.2 - 16.6 mm)
0.7598 - 0.7756 inch
(19.3 - 19.7 mm)
Flare nut
Connecting pipe
English
45
3/17/2017 10:02:55 AM
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