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1. 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
(mm)
ø 6.35
ø 9.52
ø 12.70
ø 15.88
NOTE
• If you want to shorten or extend the pipes, see Step 2.9
Shortening or extending the refrigerant pipes (assembly
pipe) on page 44.
2. Cut off the remaining foam insulation.
3. 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 100 mm or more.
4. Pass the pipe through the hole in the wall.
5. 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 .
6. Use 2 screws to fix the indoor unit as shown in
the picture 2.
7. 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 50.
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.
42 English
Torque
Torque (kgf•cm)
(N•m)
14 to 18
140 to 180
34 to 42
350 to 430
49 to 61
500 to 620
68 to 82
690 to 830
Step 2.9 Shortening or extending the
refrigerant pipes (assembly pipe)
Oblique
90°
D
A
Pipe
Flare
Outer diameter
Depth (A)
(D)
ø 6.35
ø 9.52
ø 12.70
ø 15.88
pipe
Indoor outlet
Outer diameter
Torque (N•m) Torque (kgf•cm)
(mm)
ø 6.35
14 to 18
ø 9.52
34 to 42
ø 12.70
49 to 61
ø 15.88
68 to 82
cutter
Pipe
Pipe
Rough
Burr
90°±2°
45°±2°
L
R 0.4 to 0.8
D
(Unit: mm)
Flare dimension
(L)
1.3
8.7 to 9.1
1.8
12.8 to 13.2
2.0
16.2 to 16.6
2.2
19.3 to 19.7
nut
Flare
pipe
Connecting
(Unit: mm)
140 to 180
350 to 430
500 to 620
690 to 830
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